Transform legacy format to harness assertions: test/built-ins/N*/**/*.js

test/built-ins/NaN/S15.1.1.1_A2_T2.js

@@ -10,6 +10,6 @@ flags: [noStrict]
 
 // CHECK#1
 NaN = true;
-if (typeof(NaN) === "boolean") {
+assert.notSameValue(typeof(NaN), "boolean", 'The value of typeof(NaN) is not "boolean"');
-  throw new Test262Error('#1: NaN = true; typeof(NaN) !== "boolean". Actual: ' + (typeof(NaN)));
+
-}
+// TODO: Convert to verifyProperty() format.

test/built-ins/NaN/S15.1.1.1_A3_T2.js

@@ -7,8 +7,6 @@ es5id: 15.1.1.1_A3_T2
 description: Use delete
 flags: [noStrict]
 ---*/
+assert.sameValue(delete NaN, false, 'The value of `delete NaN` is expected to be false');
 
-// CHECK#1
+// TODO: Convert to verifyProperty() format.
-if (delete NaN !== false) {
-  throw new Test262Error('#1: delete NaN === false. Actual: ' + (delete NaN));
-}

test/built-ins/NaN/S15.1.1.1_A4.js

@@ -9,7 +9,7 @@ description: Use for-in statement
 
 // CHECK#1
 for (var prop in this) {
-  if (prop === "NaN") {
+  assert.notSameValue(prop, "NaN", 'The value of prop is not "NaN"');
-    throw new Test262Error('#1: The NaN is DontEnum');
-  }
 }
+
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MAX_VALUE/S15.7.3.2_A2.js

@@ -11,6 +11,6 @@ includes: [propertyHelper.js]
 // CHECK#1
 var x = Number.MAX_VALUE;
 verifyNotWritable(Number, "MAX_VALUE", null, 1);
-if (Number.MAX_VALUE !== x) {
+assert.sameValue(Number.MAX_VALUE, x, 'The value of Number.MAX_VALUE is expected to equal the value of x');
-  throw new Test262Error('#1: x = Number.MAX_VALUE; Number.MAX_VALUE = 1; Number.MAX_VALUE === x');
+
-}
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MAX_VALUE/S15.7.3.2_A3.js

@@ -12,10 +12,12 @@ verifyNotConfigurable(Number, "MAX_VALUE");
 
 // CHECK#1
 try {
-  if (delete Number.MAX_VALUE !== false) {
+  assert.sameValue(delete Number.MAX_VALUE, false);
-    throw new Test262Error('#1: delete Number.MAX_VALUE === false');
-  }
 } catch (e) {
-  if (e instanceof Test262Error) throw e;
+  if (e instanceof Test262Error) {
+    throw e;
+  }
   assert(e instanceof TypeError);
 }
+
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MAX_VALUE/S15.7.3.2_A4.js

@@ -7,13 +7,13 @@ es5id: 15.7.3.2_A4
 description: Checking if enumerating Number.MAX_VALUE fails
 ---*/
 
-//CHECK#1
 for (var x in Number) {
-  if (x === "MAX_VALUE") {
+  assert.notSameValue(x, "MAX_VALUE", 'The value of x is not "MAX_VALUE"');
-    throw new Test262Error('#1: Number.MAX_VALUE has the attribute DontEnum');
-  }
 }
 
-if (Number.propertyIsEnumerable('MAX_VALUE')) {
+assert(
-  throw new Test262Error('#2: Number.MAX_VALUE has the attribute DontEnum');
+  !Number.propertyIsEnumerable('MAX_VALUE'),
-}
+  'The value of !Number.propertyIsEnumerable(\'MAX_VALUE\') is expected to be true'
+);
+
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MIN_VALUE/S15.7.3.3_A2.js

@@ -11,6 +11,6 @@ includes: [propertyHelper.js]
 // CHECK#1
 var x = Number.MIN_VALUE;
 verifyNotWritable(Number, "MIN_VALUE", null, 1);
-if (Number.MIN_VALUE !== x) {
+assert.sameValue(Number.MIN_VALUE, x, 'The value of Number.MIN_VALUE is expected to equal the value of x');
-  throw new Test262Error('#1: x = Number.MIN_VALUE; Number.MIN_VALUE = 1; Number.MIN_VALUE === x');
+
-}
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MIN_VALUE/S15.7.3.3_A3.js

@@ -10,12 +10,13 @@ includes: [propertyHelper.js]
 
 verifyNotConfigurable(Number, "MIN_VALUE");
 
-//CHECK#1
 try {
-  if (delete Number.MIN_VALUE !== false) {
+  assert.sameValue(delete Number.MIN_VALUE, false);
-    throw new Test262Error('#1: delete Number.MIN_VALUE === false');
-  }
 } catch (e) {
-  if (e instanceof Test262Error) throw e;
+  if (e instanceof Test262Error) {
+    throw e;
+  }
   assert(e instanceof TypeError);
 }
+
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/MIN_VALUE/S15.7.3.3_A4.js

@@ -7,13 +7,13 @@ es5id: 15.7.3.3_A4
 description: Checking if enumerating Number.MIN_VALUE fails
 ---*/
 
-//CHECK#1
 for (var x in Number) {
-  if (x === "MIN_VALUE") {
+  assert.notSameValue(x, "MIN_VALUE", 'The value of x is not "MIN_VALUE"');
-    throw new Test262Error('#1: Number.MIN_VALUE has the attribute DontEnum');
-  }
 }
 
-if (Number.propertyIsEnumerable('MIN_VALUE')) {
+assert(
-  throw new Test262Error('#2: Number.MIN_VALUE has the attribute DontEnum');
+  !Number.propertyIsEnumerable('MIN_VALUE'),
-}
+  'The value of !Number.propertyIsEnumerable(\'MIN_VALUE\') is expected to be true'
+);
+
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/NEGATIVE_INFINITY/S15.7.3.5_A1.js

@@ -6,12 +6,4 @@ info: Number.NEGATIVE_INFINITY is -Infinity
 es5id: 15.7.3.5_A1
 description: Checking sign and finiteness of Number.NEGATIVE_INFINITY
 ---*/
-
+assert.sameValue(isFinite(Number.NEGATIVE_INFINITY), false, 'isFinite(Number.NEGATIVE_INFINITY) must return false');
-// CHECK#1
-if (isFinite(Number.NEGATIVE_INFINITY) !== false) {
-  throw new Test262Error('#1: Number.NEGATIVE_INFINITY === Not-a-Finite');
-} else {
-  if ((Number.NEGATIVE_INFINITY < 0) !== true) {
-    throw new Test262Error('#1: Number.NEGATIVE_INFINITY === -Infinity');
-  }
-}

test/built-ins/Number/NEGATIVE_INFINITY/S15.7.3.5_A2.js

@@ -10,10 +10,10 @@ includes: [propertyHelper.js]
 
 // CHECK#1
 verifyNotWritable(Number, "NEGATIVE_INFINITY", null, 1);
-if (isFinite(Number.NEGATIVE_INFINITY)) {
+
-  throw new Test262Error('#1: Number.NEGATIVE_INFINITY = 1; Number.NEGATIVE_INFINITY === -Infinity');
+assert(
-} else {
+  !isFinite(Number.NEGATIVE_INFINITY),
-  if (Number.NEGATIVE_INFINITY >= 0) {
+  'The value of !isFinite(Number.NEGATIVE_INFINITY) is expected to be true'
-    throw new Test262Error('#1: Number.NEGATIVE_INFINITY = 1; Number.NEGATIVE_INFINITY === -Infinity');
+);
-  }
+
-}
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/POSITIVE_INFINITY/S15.7.3.6_A1.js

@@ -6,12 +6,4 @@ info: Number.POSITIVE_INFINITY is +Infinity
 es5id: 15.7.3.6_A1
 description: Checking sign and finiteness of Number.POSITIVE_INFINITY
 ---*/
-
+assert.sameValue(isFinite(Number.POSITIVE_INFINITY), false, 'isFinite(Number.POSITIVE_INFINITY) must return false');
-// CHECK#1
-if (isFinite(Number.POSITIVE_INFINITY) !== false) {
-  throw new Test262Error('#1: Number.POSITIVE_INFINITY === Not-a-Finite');
-} else {
-  if ((Number.POSITIVE_INFINITY > 0) !== true) {
-    throw new Test262Error('#1: Number.POSITIVE_INFINITY === +Infinity');
-  }
-}

test/built-ins/Number/POSITIVE_INFINITY/S15.7.3.6_A2.js

@@ -10,10 +10,10 @@ includes: [propertyHelper.js]
 
 // CHECK#1
 verifyNotWritable(Number, "POSITIVE_INFINITY", null, 1);
-if (isFinite(Number.POSITIVE_INFINITY)) {
+
-  throw new Test262Error('#1: Number.POSITIVE_INFINITY = 1; Number.POSITIVE_INFINITY === +Infinity');
+assert(
-} else {
+  !isFinite(Number.POSITIVE_INFINITY),
-  if (Number.POSITIVE_INFINITY <= 0) {
+  'The value of !isFinite(Number.POSITIVE_INFINITY) is expected to be true'
-    throw new Test262Error('#1: Number.POSITIVE_INFINITY = 1; Number.POSITIVE_INFINITY === +Infinity');
+);
-  }
+
-}
+// TODO: Convert to verifyProperty() format.

test/built-ins/Number/S15.7.1.1_A1.js

@@ -8,26 +8,19 @@ info: |
 es5id: 15.7.1.1_A1
 description: Used values "10", 10, new String("10"), new Object(10) and "abc"
 ---*/
+assert.sameValue(typeof Number("10"), "number", 'The value of `typeof Number("10")` is expected to be "number"');
+assert.sameValue(typeof Number(10), "number", 'The value of `typeof Number(10)` is expected to be "number"');
 
-//CHECK#1
+assert.sameValue(
-if (typeof Number("10") !== "number") {
+  typeof Number(new String("10")),
-  throw new Test262Error('#1: typeof Number("10") should be "number", actual is "' + typeof Number("10") + '"');
+  "number",
-}
+  'The value of `typeof Number(new String("10"))` is expected to be "number"'
+);
 
-//CHECK#2
+assert.sameValue(
-if (typeof Number(10) !== "number") {
+  typeof Number(new Object(10)),
-  throw new Test262Error('#2: typeof Number(10) should be "number", actual is "' + typeof Number(10) + '"');
+  "number",
-}
+  'The value of `typeof Number(new Object(10))` is expected to be "number"'
+);
 
-//CHECK#3
+assert.sameValue(Number("abc"), NaN, 'Number("abc") returns NaN');
-if (typeof Number(new String("10")) !== "number") {
-  throw new Test262Error('#3: typeof Number(new String("10")) should be "number", actual is "' + typeof Number(new String("10")) + '"');
-}
-
-//CHECK#4
-if (typeof Number(new Object(10)) !== "number") {
-  throw new Test262Error('#4: typeof Number(new Object(10)) should be "number", actual is "' + typeof Number(new Object(10)) + '"');
-}
-
-//CHECK #5
-assert.sameValue(Number("abc"), NaN, "Number('abc')");

test/built-ins/Number/S15.7.1.1_A2.js

@@ -6,15 +6,5 @@ info: Number() returns +0
 es5id: 15.7.1.1_A2
 description: Call Number() and check result
 ---*/
-
+assert.sameValue(typeof Number(), "number", 'The value of `typeof Number()` is expected to be "number"');
-//CHECK#1
+assert.sameValue(Number(), 0, 'Number() must return 0');
-if (typeof Number() !== "number") {
-  throw new Test262Error('#1: typeof Number() should be "number", actual is "' + typeof Number() + '"');
-}
-
-//CHECK#2
-if (Number() !== 0) {
-  throw new Test262Error('#2: Number() === 0, actual is ' + Number());
-} else if (1 / Number() !== Number.POSITIVE_INFINITY) {
-  throw new Test262Error('#2: Number() === +0, actual is ' + Number());
-}

test/built-ins/Number/S15.7.2.1_A1.js

@@ -8,47 +8,19 @@ info: |
 es5id: 15.7.2.1_A1
 description: Checking type of the newly created object and it value
 ---*/
+assert.sameValue(typeof new Number(), "object", 'The value of `typeof new Number()` is expected to be "object"');
+assert.notSameValue(new Number(), undefined, 'new Number() is expected to not equal ``undefined``');
 
-//CHECK#1
-if (typeof new Number() !== "object") {
-  throw new Test262Error("#1: typeof new Number() === 'object'");
-}
-
-//CHECK#2
-if (new Number() === undefined) {
-  throw new Test262Error("#2: new Number() should not be undefined");
-}
-
-//CHECK#3
 var x3 = new Number();
-if (typeof x3 !== "object") {
+assert.sameValue(typeof x3, "object", 'The value of `typeof x3` is expected to be "object"');
-  throw new Test262Error("#3: typeof new Number() === 'object'");
-}
 
-//CHECK#4
 var x4 = new Number();
-if (x4 === undefined) {
+assert.notSameValue(x4, undefined, 'The value of x4 is expected to not equal ``undefined``');
-  throw new Test262Error("#4: new Number() should not be undefined");
+assert.sameValue(typeof new Number(10), "object", 'The value of `typeof new Number(10)` is expected to be "object"');
-}
+assert.notSameValue(new Number(10), undefined, 'new Number(10) is expected to not equal ``undefined``');
 
-//CHECK#5
-if (typeof new Number(10) !== "object") {
-  throw new Test262Error("#5: typeof new Number(10) === 'object'");
-}
-
-//CHECK#6
-if (new Number(10) === undefined) {
-  throw new Test262Error("#6: new Number(10) should not be undefined");
-}
-
-//CHECK#7
 var x7 = new Number(10);
-if (typeof x7 !== "object") {
+assert.sameValue(typeof x7, "object", 'The value of `typeof x7` is expected to be "object"');
-  throw new Test262Error("#7: typeof new Number(10) === 'object'");
-}
 
-//CHECK#8
 var x8 = new Number(10);
-if (x8 === undefined) {
+assert.notSameValue(x8, undefined, 'The value of x8 is expected to not equal ``undefined``');
-  throw new Test262Error("#8: new Number(10) should not be undefined");
-}

test/built-ins/Number/S15.7.2.1_A2.js

@@ -12,18 +12,20 @@ description: Checking prototype property of the newly created objects
 
 // CHECK#1
 var x1 = new Number(1);
-if (typeof x1.constructor.prototype !== "object") {
-  throw new Test262Error('#1: typeof x1.constructor.prototype === "object"');
-}
 
-//CHECK#2
+assert.sameValue(
+  typeof x1.constructor.prototype,
+  "object",
+  'The value of `typeof x1.constructor.prototype` is expected to be "object"'
+);
+
 var x2 = new Number(2);
-if (!Number.prototype.isPrototypeOf(x2)) {
+assert(Number.prototype.isPrototypeOf(x2), 'Number.prototype.isPrototypeOf(x2) must return true');
-  throw new Test262Error('#2: Number.prototype.isPrototypeOf(x2)');
-}
 
-//CHECK#3
 var x3 = new Number(3);
-if (Number.prototype !== x3.constructor.prototype) {
+
-  throw new Test262Error('#3: Number.prototype === x3.constructor.prototype');
+assert.sameValue(
-}
+  Number.prototype,
+  x3.constructor.prototype,
+  'The value of Number.prototype is expected to equal the value of x3.constructor.prototype'
+);

test/built-ins/Number/S15.7.2.1_A3.js

@@ -9,16 +9,8 @@ es5id: 15.7.2.1_A3
 description: Checking value of the newly created object
 ---*/
 
-//CHECK#1
 var x1 = new Number(1);
-if (x1.valueOf() !== 1) {
+assert.sameValue(x1.valueOf(), 1, 'x1.valueOf() must return 1');
-  throw new Test262Error('#1: var x1 = new Number(1); x1.valueOf() === 1');
-}
 
-//CHECK#2
 var x2 = new Number();
-if (x2.valueOf() !== 0) {
+assert.sameValue(x2.valueOf(), 0, 'x2.valueOf() must return 0');
-  throw new Test262Error('#2.1: var x2 = new Number(); x2.valueOf() === 0');
-} else if (1 / x2.valueOf() !== Number.POSITIVE_INFINITY) {
-  throw new Test262Error('#2.2: var x2 = new Number(); x2.valueOf() === +0');
-}

test/built-ins/Number/S15.7.2.1_A4.js

@@ -13,7 +13,4 @@ delete Number.prototype.toString;
 
 var obj = new Number();
 
-//CHECK#1
+assert.sameValue(obj.toString(), "[object Number]", 'obj.toString() must return "[object Number]"');
-if (obj.toString() !== "[object Number]") {
-  throw new Test262Error('#1: The [[Class]] property of the newly constructed object is set to "Number"');
-}

test/built-ins/Number/S15.7.3_A1.js

@@ -6,7 +6,4 @@ info: The Number constructor has the property "prototype"
 es5id: 15.7.3_A1
 description: Checking existence of the property "prototype"
 ---*/
-
+assert(Number.hasOwnProperty("prototype"), 'Number.hasOwnProperty("prototype") must return true');
-if (!Number.hasOwnProperty("prototype")) {
-  throw new Test262Error('#1: The Number constructor has the property "prototype"');
-}

test/built-ins/Number/S15.7.3_A2.js

@@ -6,7 +6,4 @@ info: The Number constructor has the property "MAX_VALUE"
 es5id: 15.7.3_A2
 description: Checking existence of the property "MAX_VALUE"
 ---*/
-
+assert(Number.hasOwnProperty("MAX_VALUE"), 'Number.hasOwnProperty("MAX_VALUE") must return true');
-if (!Number.hasOwnProperty("MAX_VALUE")) {
-  throw new Test262Error('#1: The Number constructor has the property "MAX_VALUE"');
-}

test/built-ins/Number/S15.7.3_A3.js

@@ -6,7 +6,4 @@ info: The Number constructor has the property "MIN_VALUE"
 es5id: 15.7.3_A3
 description: Checking existence of the property "MIN_VALUE"
 ---*/
-
+assert(Number.hasOwnProperty("MIN_VALUE"), 'Number.hasOwnProperty("MIN_VALUE") must return true');
-if (!Number.hasOwnProperty("MIN_VALUE")) {
-  throw new Test262Error('#1: The Number constructor has the property "MIN_VALUE"');
-}

test/built-ins/Number/S15.7.3_A4.js

@@ -6,7 +6,4 @@ info: The Number constructor has the property "NaN"
 es5id: 15.7.3_A4
 description: Checking existence of the property "NaN"
 ---*/
-
+assert(Number.hasOwnProperty("NaN"), 'Number.hasOwnProperty("NaN") must return true');
-if (!Number.hasOwnProperty("NaN")) {
-  throw new Test262Error('#1: The Number constructor has the property "NaN"');
-}

test/built-ins/Number/S15.7.3_A5.js

@@ -6,7 +6,7 @@ info: The Number constructor has the property "NEGATIVE_INFINITY"
 es5id: 15.7.3_A5
 description: Checking existence of the property "NEGATIVE_INFINITY"
 ---*/
-
+assert(
-if (!Number.hasOwnProperty("NEGATIVE_INFINITY")) {
+  Number.hasOwnProperty("NEGATIVE_INFINITY"),
-  throw new Test262Error('#1: The Number constructor has the property "NEGATIVE_INFINITY"');
+  'Number.hasOwnProperty("NEGATIVE_INFINITY") must return true'
-}
+);

test/built-ins/Number/S15.7.3_A6.js

@@ -6,7 +6,7 @@ info: The Number constructor has the property "POSITIVE_INFINITY"
 es5id: 15.7.3_A6
 description: Checking existence of the property "POSITIVE_INFINITY"
 ---*/
-
+assert(
-if (!Number.hasOwnProperty("POSITIVE_INFINITY")) {
+  Number.hasOwnProperty("POSITIVE_INFINITY"),
-  throw new Test262Error('#1: The Number constructor has the property "POSITIVE_INFINITY"');
+  'Number.hasOwnProperty("POSITIVE_INFINITY") must return true'
-}
+);

test/built-ins/Number/S15.7.3_A7.js

@@ -8,8 +8,7 @@ info: |
 es5id: 15.7.3_A7
 description: Checking Function.prototype.isPrototypeOf(Number)
 ---*/
-
+assert(
-//CHECK#1
+  Function.prototype.isPrototypeOf(Number),
-if (!(Function.prototype.isPrototypeOf(Number))) {
+  'Function.prototype.isPrototypeOf(Number) must return true'
-  throw new Test262Error('#1: the value of the internal [[Prototype]] property of the Number constructor is the Function prototype object.');
+);
-}

test/built-ins/Number/S15.7.3_A8.js

@@ -6,13 +6,5 @@ info: Number constructor has length property whose value is 1
 es5id: 15.7.3_A8
 description: Checking Number.length property
 ---*/
-
+assert(Number.hasOwnProperty("length"), 'Number.hasOwnProperty("length") must return true');
-//CHECK#1
+assert.sameValue(Number.length, 1, 'The value of Number.length is expected to be 1');
-if (!Number.hasOwnProperty("length")) {
-  throw new Test262Error('#1: Number constructor has length property');
-}
-
-//CHECK#2
-if (Number.length !== 1) {
-  throw new Test262Error('#2: Number constructor length property value is 1');
-}

test/built-ins/Number/S15.7.5_A1_T01.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T01
 description: Checking property constructor
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("constructor"),
+  false,
+  '(new Number()).hasOwnProperty("constructor") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("constructor") !== false) {
+  (new Number()).constructor,
-  throw new Test262Error('#1: Number instance must have no special property "constructor"');
+  Number.prototype.constructor,
-}
+  'The value of (new Number()).constructor is expected to equal the value of Number.prototype.constructor'
-
+);
-//CHECK#2
-if ((new Number()).constructor !== Number.prototype.constructor) {
-  throw new Test262Error('#2: Number instance property "constructor" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T02.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T02
 description: Checking property toString
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("toString"),
+  false,
+  '(new Number()).hasOwnProperty("toString") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("toString") !== false) {
+  (new Number()).toString,
-  throw new Test262Error('#1: Number instance must have no special property "toString"');
+  Number.prototype.toString,
-}
+  'The value of (new Number()).toString is expected to equal the value of Number.prototype.toString'
-
+);
-//CHECK#2
-if ((new Number()).toString !== Number.prototype.toString) {
-  throw new Test262Error('#2: Number instance property "toString" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T03.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T03
 description: Checking property toLocaleString
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("toLocaleString"),
+  false,
+  '(new Number()).hasOwnProperty("toLocaleString") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("toLocaleString") !== false) {
+  (new Number()).toLocaleString,
-  throw new Test262Error('#1: Number instance must have no special property "toLocaleString"');
+  Number.prototype.toLocaleString,
-}
+  'The value of (new Number()).toLocaleString is expected to equal the value of Number.prototype.toLocaleString'
-
+);
-//CHECK#2
-if ((new Number()).toLocaleString !== Number.prototype.toLocaleString) {
-  throw new Test262Error('#2: Number instance property "toLocaleString" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T04.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T04
 description: Checking property valueOf
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("valueOf"),
+  false,
+  '(new Number()).hasOwnProperty("valueOf") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("valueOf") !== false) {
+  (new Number()).valueOf,
-  throw new Test262Error('#1: Number instance must have no special property "valueOf"');
+  Number.prototype.valueOf,
-}
+  'The value of (new Number()).valueOf is expected to equal the value of Number.prototype.valueOf'
-
+);
-//CHECK#2
-if ((new Number()).valueOf !== Number.prototype.valueOf) {
-  throw new Test262Error('#2: Number instance property "valueOf" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T05.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T05
 description: Checking property toFixed
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("toFixed"),
+  false,
+  '(new Number()).hasOwnProperty("toFixed") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("toFixed") !== false) {
+  (new Number()).toFixed,
-  throw new Test262Error('#1: Number instance must have no special property "toFixed"');
+  Number.prototype.toFixed,
-}
+  'The value of (new Number()).toFixed is expected to equal the value of Number.prototype.toFixed'
-
+);
-//CHECK#2
-if ((new Number()).toFixed !== Number.prototype.toFixed) {
-  throw new Test262Error('#2: Number instance property "toFixed" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T06.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T06
 description: Checking property toExponential
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("toExponential"),
+  false,
+  '(new Number()).hasOwnProperty("toExponential") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("toExponential") !== false) {
+  (new Number()).toExponential,
-  throw new Test262Error('#1: Number instance must have no special property "toExponential"');
+  Number.prototype.toExponential,
-}
+  'The value of (new Number()).toExponential is expected to equal the value of Number.prototype.toExponential'
-
+);
-//CHECK#2
-if ((new Number()).toExponential !== Number.prototype.toExponential) {
-  throw new Test262Error('#2: Number instance property "toExponential" must be inherited from Number prototype object');
-}

test/built-ins/Number/S15.7.5_A1_T07.js

@@ -8,13 +8,14 @@ info: |
 es5id: 15.7.5_A1_T07
 description: Checking property toPrecision
 ---*/
+assert.sameValue(
+  (new Number()).hasOwnProperty("toPrecision"),
+  false,
+  '(new Number()).hasOwnProperty("toPrecision") must return false'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number()).hasOwnProperty("toPrecision") !== false) {
+  (new Number()).toPrecision,
-  throw new Test262Error('#1: Number instance must have no special property "toPrecision"');
+  Number.prototype.toPrecision,
-}
+  'The value of (new Number()).toPrecision is expected to equal the value of Number.prototype.toPrecision'
-
+);
-//CHECK#2
-if ((new Number()).toPrecision !== Number.prototype.toPrecision) {
-  throw new Test262Error('#2: Number instance property "toPrecision" must be inherited from Number prototype object');
-}

test/built-ins/Number/S8.12.8_A3.js

@@ -21,9 +21,12 @@ try
       return new Object();
     }
   }
-  if (Number(__obj) !== 1) {
+
-    throw new Test262Error('#1.1: var __obj = {toNumber: function() {return "1"}, valueOf: function() {return new Object();}}; Number(__obj) === 1. Actual: ' + (Number(__obj)));
+  assert.sameValue(
-  }
+    Number(__obj),
+    1,
+    'Number("{toString: function() {return "1"}, valueOf: function() {return new Object();}}) must return 1'
+  );
 }
 catch (e)
 {

test/built-ins/Number/S8.12.8_A4.js

@@ -26,7 +26,9 @@ try
 }
 catch (e)
 {
-  if ((e instanceof TypeError) !== true) {
+  assert.sameValue(
-    throw new Test262Error('#1.2: var __obj = {valueOf:function(){return new Object;},toNumber: function() {return new Object();}}; Number(__obj) throw TypeError. Actual: ' + (e));
+    e instanceof TypeError,
-  }
+    true,
+    'The result of evaluating (e instanceof TypeError) is expected to be true'
+  );
 }

test/built-ins/Number/S9.1_A1_T1.js

@@ -20,9 +20,12 @@ var object = {
     return 0
   }
 };
-if (Number(object) !== 1) {
+
-  throw new Test262Error('#1: var object = {valueOf: function() {return "1"}, toString: function() {return 0}}; Number(object) === 1. Actual: ' + (Number(object)));
+assert.sameValue(
-}
+  Number(object),
+  1,
+  'Number({valueOf: function() {return "1"}, toString: function() {return 0}}) must return 1'
+);
 
 // CHECK#2
 var object = {
@@ -33,6 +36,9 @@ var object = {
     return "0"
   }
 };
-if (Number(object) !== 0) {
+
-  throw new Test262Error('#2: var object = {valueOf: function() {return {}}, toString: function() {return "0"}}; Number(object) === 0. Actual: ' + (Number(object)));
+assert.sameValue(
-}
+  Number(object),
+  0,
+  'Number({valueOf: function() {return {}}, toString: function() {return "0"}}) must return 0'
+);

test/built-ins/Number/S9.3.1_A1.js

@@ -6,12 +6,4 @@ info: "The MV of StringNumericLiteral ::: [empty] is 0"
 es5id: 9.3.1_A1
 description: Number('') convert to Number by explicit transformation
 ---*/
-
+assert.sameValue(Number(""), 0, 'Number("") must return 0');
-// CHECK#1
-if (Number("") !== 0) {
-  throw new Test262Error('#1.1: Number("") === 0. Actual: ' + (Number("")));
-} else {
-  if (1 / Number("") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#1.2: Number("") == +0. Actual: -0');
-  }
-}

test/built-ins/Number/S9.3.1_A10.js

@@ -9,8 +9,4 @@ info: |
 es5id: 9.3.1_A10
 description: Compare Number('.12345') with +('12345')*1e-5
 ---*/
-
+assert.sameValue(+('12345')*1e-5, 0.12345);
-// CHECK#1
-if (Number(".12345") !== +("12345") * 1e-5) {
-  throw new Test262Error('#1: Number(".12345") === +("12345")*1e-5');
-}

test/built-ins/Number/S9.3.1_A11.js

@@ -11,13 +11,9 @@ description: >
     Compare Number('.12345e6') with +('12345')*1e1,  and
     Number('.12345e-3') !== Number('12345')*1e-8
 ---*/
+assert.sameValue(+('12345')*1e1, 0.12345e6);
 
-// CHECK#1
+assert.sameValue(
-if (Number(".12345e6") !== +("12345") * 1e1) {
+  Number(".12345e-3"),
-  throw new Test262Error('#1: Number(".12345e6") === +("12345")*1e1');
+  0.00012345
-}
+);
-
-// CHECK#2
-if (Number(".12345e-3") !== Number("12345") * 1e-8) {
-  throw new Test262Error('#2: Number(".12345e-3") === Number("12345")*1e-8');
-}

test/built-ins/Number/S9.3.1_A12.js

@@ -10,13 +10,5 @@ description: >
     Compare Number('12345e6') with +('12345')*1e1,  and
     Number('12345e-6') !== Number('12345')*1e-6
 ---*/
-
+assert.sameValue(Number("12345e6"), 12345000000, 'Number("12345e6") must return 12345000000');
-// CHECK#1
+assert.sameValue(Number("12345e-6"), 0.012345, 'Number("12345e-6") must return 0.012345');
-if (Number("12345e6") !== +("12345") * 1e6) {
-  throw new Test262Error('#1: Number("12345e6") === +("12345")*1e6');
-}
-
-// CHECK#2
-if (Number("12345e-6") !== Number("12345") * 1e-6) {
-  throw new Test262Error('#2: Number("12345e-6") === Number("12345")*1e-6');
-}

test/built-ins/Number/S9.3.1_A13.js

@@ -8,18 +8,20 @@ info: |
 es5id: 9.3.1_A13
 description: Compare '12' with Number("1")*10+Number("2") and analogous
 ---*/
+assert.sameValue(
+  +("12"),
+  12,
+  'The value of `+("12")` is expected to be 12'
+);
 
-// CHECK#1
+assert.sameValue(
-if (+("12") !== Number("1") * 10 + Number("2")) {
+  Number("123"),
-  throw new Test262Error('#1: +("12") === Number("1")*10+Number("2")');
+  123,
-}
+  'Number("123") must return 123'
+);
 
-// CHECK#2
+assert.sameValue(
-if (Number("123") !== Number("12") * 10 + Number("3")) {
+  Number("1234"),
-  throw new Test262Error('#2: Number("123") === Number("12")*10+Number("3")');
+  1234,
-}
+  'Number("1234") must return 1234'
-
+);
-// CHECK#2
-if (Number("1234") !== Number("123") * 10 + Number("4")) {
-  throw new Test262Error('#2: Number("1234") === Number("123")*10+Number("4")');
-}

test/built-ins/Number/S9.3.1_A14.js

@@ -6,8 +6,4 @@ info: "The MV of SignedInteger ::: + DecimalDigits is the MV of DecimalDigits"
 es5id: 9.3.1_A14
 description: Compare Number('+1234567890') with +('1234567890')
 ---*/
-
+assert.sameValue(Number("+1234567890"), 1234567890, 'Number("+1234567890") must return 1234567890');
-// CHECK#1
-if (Number("+1234567890") !== +("1234567890")) {
-  throw new Test262Error('#1: Number("+1234567890") === +("1234567890")');
-}

test/built-ins/Number/S9.3.1_A15.js

@@ -8,8 +8,8 @@ info: |
 es5id: 9.3.1_A15
 description: Compare -Number('1234567890') with ('-1234567890')
 ---*/
-
+assert.sameValue(
-// CHECK#1
+  +("-1234567890"),
-if (+("-1234567890") !== -Number("1234567890")) {
+  -1234567890,
-  throw new Test262Error('#1: +("-1234567890") === -Number("1234567890")');
+  'The value of `+("-1234567890")` is expected to be -1234567890'
-}
+);

test/built-ins/Number/S9.3.1_A16.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 0 or of HexDigit ::: 0 is 0"
 es5id: 9.3.1_A16
 description: Compare Number('0x0') and Number('0X0') with 0
 ---*/
-
+assert.sameValue(Number("0"), 0, 'Number("0") must return 0');
-// CHECK#1
+assert.sameValue(+("0x0"), 0, 'The value of `+("0x0")` is expected to be 0');
-if (Number("0") !== 0) {
+assert.sameValue(Number("0X0"), 0, 'Number("0X0") must return 0');
-  throw new Test262Error('#1: Number("0") === 0. Actual: ' + (Number("0")));
-}
-
-// CHECK#2
-if (+("0x0") !== 0) {
-  throw new Test262Error('#2: +("0x0") === 0. Actual: ' + (+("0x0")));
-}
-
-// CHECK#3
-if (Number("0X0") !== 0) {
-  throw new Test262Error('#3: Number("0X0") === 0. Actual: ' + (Number("0X0")));
-}

test/built-ins/Number/S9.3.1_A17.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 1 or of HexDigit ::: 1 is 1"
 es5id: 9.3.1_A17
 description: Compare Number('0x1') and Number('0X1') with 1
 ---*/
-
+assert.sameValue(Number("1"), 1, 'Number("1") must return 1');
-// CHECK#1
+assert.sameValue(Number("0x1"), 1, 'Number("0x1") must return 1');
-if (Number("1") !== 1) {
+assert.sameValue(+("0X1"), 1, 'The value of `+("0X1")` is expected to be 1');
-  throw new Test262Error('#1: Number("1") === 1. Actual: ' + (Number("1")));
-}
-
-// CHECK#2
-if (Number("0x1") !== 1) {
-  throw new Test262Error('#2: Number("0x1") === 1. Actual: ' + (Number("0x1")));
-}
-
-// CHECK#3
-if (+("0X1") !== 1) {
-  throw new Test262Error('#3: +("0X1") === 1. Actual: ' + (+("0X1")));
-}

test/built-ins/Number/S9.3.1_A18.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 2 or of HexDigit ::: 2 is 2"
 es5id: 9.3.1_A18
 description: Compare Number('0x2') and Number('0X2') with 2
 ---*/
-
+assert.sameValue(+("2"), 2, 'The value of `+("2")` is expected to be 2');
-// CHECK#1
+assert.sameValue(Number("0x2"), 2, 'Number("0x2") must return 2');
-if (+("2") !== 2) {
+assert.sameValue(Number("0X2"), 2, 'Number("0X2") must return 2');
-  throw new Test262Error('#1: +("2") === 2. Actual: ' + (+("2")));
-}
-
-// CHECK#2
-if (Number("0x2") !== 2) {
-  throw new Test262Error('#2: Number("0x2") === 2. Actual: ' + (Number("0x2")));
-}
-
-// CHECK#3
-if (Number("0X2") !== 2) {
-  throw new Test262Error('#3: Number("0X2") === 2. Actual: ' + (Number("0X2")));
-}

test/built-ins/Number/S9.3.1_A19.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 3 or of HexDigit ::: 3 is 3"
 es5id: 9.3.1_A19
 description: Compare Number('0x3') and Number('0X3') with 3
 ---*/
-
+assert.sameValue(Number("3"), 3, 'Number("3") must return 3');
-// CHECK#1
+assert.sameValue(+("0x3"), 3, 'The value of `+("0x3")` is expected to be 3');
-if (Number("3") !== 3) {
+assert.sameValue(Number("0X3"), 3, 'Number("0X3") must return 3');
-  throw new Test262Error('#1: Number("3") === 3. Actual: ' + (Number("3")));
-}
-
-// CHECK#2
-if (+("0x3") !== 3) {
-  throw new Test262Error('#2: +("0x3") === 3. Actual: ' + (+("0x3")));
-}
-
-// CHECK#3
-if (Number("0X3") !== 3) {
-  throw new Test262Error('#3: Number("0X3") === 3. Actual: ' + (Number("0X3")));
-}

test/built-ins/Number/S9.3.1_A2.js

@@ -8,273 +8,38 @@ description: >
     Strings with various WhiteSpaces convert to Number by explicit
     transformation
 ---*/
+assert.sameValue(
+  Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"),
+  0,
+  'Number("u0009u000Cu0020u00A0u000Bu000Au000Du2028u2029u1680u2000u2001u2002u2003u2004u2005u2006u2007u2008u2009u200Au202Fu205Fu3000") must return 0'
+);
 
-// CHECK#1
+assert.sameValue(Number(" "), 0, 'Number(" ") must return 0');
-if (Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") !== 0) {
+assert.sameValue(Number("\t"), 0, 'Number("t") must return 0');
-  throw new Test262Error('#1.1: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === 0. Actual: ' + (Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")));
+assert.sameValue(Number("\r"), 0, 'Number("r") must return 0');
-} else {
+assert.sameValue(Number("\n"), 0, 'Number("n") must return 0');
-  if (1 / Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") !== Number.POSITIVE_INFINITY) {
+assert.sameValue(Number("\f"), 0, 'Number("f") must return 0');
-    throw new Test262Error('#1.2: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === +0. Actual: -0');
+assert.sameValue(Number("\u0009"), 0, 'Number("u0009") must return 0');
-  }
+assert.sameValue(Number("\u000A"), 0, 'Number("u000A") must return 0');
-}
+assert.sameValue(Number("\u000B"), 0, 'Number("u000B") must return 0');
-
+assert.sameValue(Number("\u000C"), 0, 'Number("u000C") must return 0');
-// CHECK#2
+assert.sameValue(Number("\u000D"), 0, 'Number("u000D") must return 0');
-if (Number(" ") !== 0) {
+assert.sameValue(Number("\u00A0"), 0, 'Number("u00A0") must return 0');
-  throw new Test262Error('#2.1: Number(" ") === 0. Actual: ' + (Number(" ")));
+assert.sameValue(Number("\u0020"), 0, 'Number("u0020") must return 0');
-} else {
+assert.sameValue(Number("\u2028"), 0, 'Number("u2028") must return 0');
-  if (1 / Number(" ") !== Number.POSITIVE_INFINITY) {
+assert.sameValue(Number("\u2029"), 0, 'Number("u2029") must return 0');
-    throw new Test262Error('#2.2: Number(" ") === +0. Actual: -0');
+assert.sameValue(Number("\u1680"), 0, 'Number("u1680") must return 0');
-  }
+assert.sameValue(Number("\u2000"), 0, 'Number("u2000") must return 0');
-}
+assert.sameValue(Number("\u2001"), 0, 'Number("u2001") must return 0');
-
+assert.sameValue(Number("\u2002"), 0, 'Number("u2002") must return 0');
-// CHECK#3
+assert.sameValue(Number("\u2003"), 0, 'Number("u2003") must return 0');
-if (Number("\t") !== 0) {
+assert.sameValue(Number("\u2004"), 0, 'Number("u2004") must return 0');
-  throw new Test262Error('#3.1: Number("\\t") === 0. Actual: ' + (Number("\t")));
+assert.sameValue(Number("\u2005"), 0, 'Number("u2005") must return 0');
-} else {
+assert.sameValue(Number("\u2006"), 0, 'Number("u2006") must return 0');
-  if (1 / Number("\t") !== Number.POSITIVE_INFINITY) {
+assert.sameValue(Number("\u2007"), 0, 'Number("u2007") must return 0');
-    throw new Test262Error('#3.2: Number("\\t") === +0. Actual: -0');
+assert.sameValue(Number("\u2008"), 0, 'Number("u2008") must return 0');
-  }
+assert.sameValue(Number("\u2009"), 0, 'Number("u2009") must return 0');
-}
+assert.sameValue(Number("\u200A"), 0, 'Number("u200A") must return 0');
-
+assert.sameValue(Number("\u202F"), 0, 'Number("u202F") must return 0');
-// CHECK#4
+assert.sameValue(Number("\u205F"), 0, 'Number("u205F") must return 0');
-if (Number("\r") !== 0) {
+assert.sameValue(Number("\u3000"), 0, 'Number("u3000") must return 0');
-  throw new Test262Error('#4.1: Number("\\r") === 0. Actual: ' + (Number("\r")));
-} else {
-  if (1 / Number("\r") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#4.2: Number("\\r") === +0. Actual: -0');
-  }
-}
-
-// CHECK#5
-if (Number("\n") !== 0) {
-  throw new Test262Error('#5.1: Number("\\n") === 0. Actual: ' + (Number("\n")));
-} else {
-  if (1 / Number("\n") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#5.2: Number("\\n") === +0. Actual: -0');
-  }
-}
-
-// CHECK#6
-if (Number("\f") !== 0) {
-  throw new Test262Error('#6.1: Number("\\f") === 0. Actual: ' + (Number("\f")));
-} else {
-  if (1 / Number("\f") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#6.2: Number("\\f") === +0. Actual: -0');
-  }
-}
-
-// CHECK#7
-if (Number("\u0009") !== 0) {
-  throw new Test262Error('#7.1: Number("\\u0009") === 0. Actual: ' + (Number("\u0009")));
-} else {
-  if (1 / Number("\u0009") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#7.2: Number("\\u0009") === +0. Actual: -0');
-  }
-}
-
-// CHECK#8
-if (Number("\u000A") !== 0) {
-  throw new Test262Error('#8.1: Number("\\u000A") === 0. Actual: ' + (Number("\u000A")));
-} else {
-  if (1 / Number("\u000A") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#8.2: Number("\\u000A") === +0. Actual: -0');
-  }
-}
-
-// CHECK#9
-if (Number("\u000B") !== 0) {
-  throw new Test262Error('#9.1: Number("\\u000B") === 0. Actual: ' + (Number("\u000B")));
-} else {
-  if (1 / Number("\u000B") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#9.1.2: Number("\\u000B") === +0. Actual: -0');
-  }
-}
-
-// CHECK#10
-if (Number("\u000C") !== 0) {
-  throw new Test262Error('#10.1: Number("\\u000C") === 0. Actual: ' + (Number("\u000C")));
-} else {
-  if (1 / Number("\u000C") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#10.2: Number("\\u000C") === +0. Actual: -0');
-  }
-}
-
-// CHECK#11
-if (Number("\u000D") !== 0) {
-  throw new Test262Error('#11.1: Number("\\u000D") === 0. Actual: ' + (Number("\u000D")));
-} else {
-  if (1 / Number("\u000D") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#11.2: Number("\\u000D") === +0. Actual: -0');
-  }
-}
-
-// CHECK#12
-if (Number("\u00A0") !== 0) {
-  throw new Test262Error('#12.1: Number("\\u00A0") === 0. Actual: ' + (Number("\u00A0")));
-} else {
-  if (1 / Number("\u00A0") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#12.2: Number("\\u00A0") === +0. Actual: -0');
-  }
-}
-
-// CHECK#13
-if (Number("\u0020") !== 0) {
-  throw new Test262Error('#13.1: Number("\\u0020") === 0. Actual: ' + (Number("\u0020")));
-} else {
-  if (1 / Number("\u0020") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#13.2: Number("\\u0020") === +0. Actual: -0');
-  }
-}
-
-// CHECK#14
-if (Number("\u2028") !== 0) {
-  throw new Test262Error('#14.1: Number("\\u2028") === 0. Actual: ' + (Number("\u2028")));
-} else {
-  if (1 / Number("\u2028") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#14.2: Number("\\u2028") === +0. Actual: -0');
-  }
-}
-
-// CHECK#15
-if (Number("\u2029") !== 0) {
-  throw new Test262Error('#15.1: Number("\\u2029") === 0. Actual: ' + (Number("\u2029")));
-} else {
-  if (1 / Number("\u2029") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#15.2: Number("\\u2029") === +0. Actual: -0');
-  }
-}
-
-// CHECK#16
-if (Number("\u1680") !== 0) {
-  throw new Test262Error('#16.1: Number("\\u1680") === 0. Actual: ' + (Number("\u1680")));
-} else {
-  if (1 / Number("\u1680") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#16.2: Number("\\u1680") === +0. Actual: -0');
-  }
-}
-
-// CHECK#17
-if (Number("\u2000") !== 0) {
-  throw new Test262Error('#17.1: Number("\\u2000") === 0. Actual: ' + (Number("\u2000")));
-} else {
-  if (1 / Number("\u2000") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#17.2: Number("\\u2000") === +0. Actual: -0');
-  }
-}
-
-// CHECK#18
-if (Number("\u2001") !== 0) {
-  throw new Test262Error('#18.1: Number("\\u2001") === 0. Actual: ' + (Number("\u2001")));
-} else {
-  if (1 / Number("\u2001") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#18.2: Number("\\u2001") === +0. Actual: -0');
-  }
-}
-
-// CHECK#19
-if (Number("\u2002") !== 0) {
-  throw new Test262Error('#19.1: Number("\\u2002") === 0. Actual: ' + (Number("\u2002")));
-} else {
-  if (1 / Number("\u2002") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#19.2: Number("\\u2002") === +0. Actual: -0');
-  }
-}
-
-// CHECK#20
-if (Number("\u2003") !== 0) {
-  throw new Test262Error('#20.1: Number("\\u2003") === 0. Actual: ' + (Number("\u2003")));
-} else {
-  if (1 / Number("\u2003") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#20.2: Number("\\u2003") === +0. Actual: -0');
-  }
-}
-
-// CHECK#21
-if (Number("\u2004") !== 0) {
-  throw new Test262Error('#21.1: Number("\\u2004") === 0. Actual: ' + (Number("\u2004")));
-} else {
-  if (1 / Number("\u2004") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#21.2: Number("\\u2004") === +0. Actual: -0');
-  }
-}
-
-// CHECK#22
-if (Number("\u2005") !== 0) {
-  throw new Test262Error('#22.1: Number("\\u2005") === 0. Actual: ' + (Number("\u2005")));
-} else {
-  if (1 / Number("\u2005") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#22.2: Number("\\u2005") === +0. Actual: -0');
-  }
-}
-
-// CHECK#23
-if (Number("\u2006") !== 0) {
-  throw new Test262Error('#23.1: Number("\\u2006") === 0. Actual: ' + (Number("\u2006")));
-} else {
-  if (1 / Number("\u2006") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#23.2: Number("\\u2006") === +0. Actual: -0');
-  }
-}
-
-// CHECK#24
-if (Number("\u2007") !== 0) {
-  throw new Test262Error('#24.1: Number("\\u2007") === 0. Actual: ' + (Number("\u2007")));
-} else {
-  if (1 / Number("\u2007") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#24.2: Number("\\u2007") === +0. Actual: -0');
-  }
-}
-
-// CHECK#25
-if (Number("\u2008") !== 0) {
-  throw new Test262Error('#25.1: Number("\\u2008") === 0. Actual: ' + (Number("\u2008")));
-} else {
-  if (1 / Number("\u2008") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#25.2: Number("\\u2008") === +0. Actual: -0');
-  }
-}
-
-// CHECK#26
-if (Number("\u2009") !== 0) {
-  throw new Test262Error('#26.1: Number("\\u2009") === 0. Actual: ' + (Number("\u2009")));
-} else {
-  if (1 / Number("\u2009") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#26.2: Number("\\u2009") === +0. Actual: -0');
-  }
-}
-
-// CHECK#27
-if (Number("\u200A") !== 0) {
-  throw new Test262Error('#27.1: Number("\\u200A") === 0. Actual: ' + (Number("\u200A")));
-} else {
-  if (1 / Number("\u200A") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#27.2: Number("\\u200A") === +0. Actual: -0');
-  }
-}
-
-// CHECK#28
-if (Number("\u202F") !== 0) {
-  throw new Test262Error('#28.1: Number("\\u202F") === 0. Actual: ' + (Number("\u202F")));
-} else {
-  if (1 / Number("\u202F") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#28.2: Number("\\u202F") === +0. Actual: -0');
-  }
-}
-
-// CHECK#29
-if (Number("\u205F") !== 0) {
-  throw new Test262Error('#29.1: Number("\\u205F") === 0. Actual: ' + (Number("\u205F")));
-} else {
-  if (1 / Number("\u205F") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#29.2: Number("\\u205F") === +0. Actual: -0');
-  }
-}
-
-// CHECK#30
-if (Number("\u3000") !== 0) {
-  throw new Test262Error('#30.1: Number("\\u3000") === 0. Actual: ' + (Number("\u3000")));
-} else {
-  if (1 / Number("\u3000") !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#30.2: Number("\\u3000") === +0. Actual: -0');
-  }
-}

test/built-ins/Number/S9.3.1_A20.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 4 or of HexDigit ::: 4 is 4"
 es5id: 9.3.1_A20
 description: Compare Number('0x4') and Number('0X4') with 4
 ---*/
-
+assert.sameValue(Number("4"), 4, 'Number("4") must return 4');
-// CHECK#1
+assert.sameValue(Number("0x4"), 4, 'Number("0x4") must return 4');
-if (Number("4") !== 4) {
+assert.sameValue(+("0X4"), 4, 'The value of `+("0X4")` is expected to be 4');
-  throw new Test262Error('#1: Number("4") === 4. Actual: ' + (Number("4")));
-}
-
-// CHECK#2
-if (Number("0x4") !== 4) {
-  throw new Test262Error('#2: Number("0x4") === 4. Actual: ' + (Number("0x4")));
-}
-
-// CHECK#3
-if (+("0X4") !== 4) {
-  throw new Test262Error('#3: +("0X4") === 4. Actual: ' + (+("0X4")));
-}

test/built-ins/Number/S9.3.1_A21.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 5 or of HexDigit ::: 5 is 5"
 es5id: 9.3.1_A21
 description: Compare Number('0x5') and Number('0X5') with 5
 ---*/
-
+assert.sameValue(+("5"), 5, 'The value of `+("5")` is expected to be 5');
-// CHECK#1
+assert.sameValue(Number("0x5"), 5, 'Number("0x5") must return 5');
-if (+("5") !== 5) {
+assert.sameValue(Number("0X5"), 5, 'Number("0X5") must return 5');
-  throw new Test262Error('#1: +("5") === 5. Actual: ' + (+("5")));
-}
-
-// CHECK#2
-if (Number("0x5") !== 5) {
-  throw new Test262Error('#2: Number("0x5") === 5. Actual: ' + (Number("0x5")));
-}
-
-// CHECK#3
-if (Number("0X5") !== 5) {
-  throw new Test262Error('#3: Number("0X5") === 5. Actual: ' + (Number("0X5")));
-}

test/built-ins/Number/S9.3.1_A22.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 6 or of HexDigit ::: 6 is 6"
 es5id: 9.3.1_A22
 description: Compare Number('0x6') and Number('0X6') with 6
 ---*/
-
+assert.sameValue(Number("6"), 6, 'Number("6") must return 6');
-// CHECK#1
+assert.sameValue(+("0x6"), 6, 'The value of `+("0x6")` is expected to be 6');
-if (Number("6") !== 6) {
+assert.sameValue(Number("0X6"), 6, 'Number("0X6") must return 6');
-  throw new Test262Error('#1: Number("6") === 6. Actual: ' + (Number("6")));
-}
-
-// CHECK#2
-if (+("0x6") !== 6) {
-  throw new Test262Error('#2: +("0x6") === 6. Actual: ' + (+("0x6")));
-}
-
-// CHECK#3
-if (Number("0X6") !== 6) {
-  throw new Test262Error('#3: Number("0X6") === 6. Actual: ' + (Number("0X6")));
-}

test/built-ins/Number/S9.3.1_A23.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 7 or of HexDigit ::: 7 is 7"
 es5id: 9.3.1_A23
 description: Compare Number('0x7') and Number('0X7') with 7
 ---*/
-
+assert.sameValue(Number("7"), 7, 'Number("7") must return 7');
-// CHECK#1
+assert.sameValue(Number("0x7"), 7, 'Number("0x7") must return 7');
-if (Number("7") !== 7) {
+assert.sameValue(+("0X7"), 7, 'The value of `+("0X7")` is expected to be 7');
-  throw new Test262Error('#1: Number("7") === 7. Actual: ' + (Number("7")));
-}
-
-// CHECK#2
-if (Number("0x7") !== 7) {
-  throw new Test262Error('#2: Number("0x7") === 7. Actual: ' + (Number("0x7")));
-}
-
-// CHECK#3
-if (+("0X7") !== 7) {
-  throw new Test262Error('#3: +("0X7") === 7. Actual: ' + (+("0X7")));
-}

test/built-ins/Number/S9.3.1_A24.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 8 or of HexDigit ::: 8 is 8"
 es5id: 9.3.1_A24
 description: Compare Number('0x8') and Number('0X8') with 8
 ---*/
-
+assert.sameValue(+("8"), 8, 'The value of `+("8")` is expected to be 8');
-// CHECK#1
+assert.sameValue(Number("0x8"), 8, 'Number("0x8") must return 8');
-if (+("8") !== 8) {
+assert.sameValue(Number("0X8"), 8, 'Number("0X8") must return 8');
-  throw new Test262Error('#1: +("8") === 8. Actual: ' + (+("8")));
-}
-
-// CHECK#2
-if (Number("0x8") !== 8) {
-  throw new Test262Error('#2: Number("0x8") === 8. Actual: ' + (Number("0x8")));
-}
-
-// CHECK#3
-if (Number("0X8") !== 8) {
-  throw new Test262Error('#3: Number("0X8") === 8. Actual: ' + (Number("0X8")));
-}

test/built-ins/Number/S9.3.1_A25.js

@@ -6,18 +6,6 @@ info: "The MV of DecimalDigit ::: 9 or of HexDigit ::: 9 is 9"
 es5id: 9.3.1_A25
 description: Compare Number('0x9') and Number('0X9') with 9
 ---*/
-
+assert.sameValue(Number("9"), 9, 'Number("9") must return 9');
-// CHECK#1
+assert.sameValue(+("0x9"), 9, 'The value of `+("0x9")` is expected to be 9');
-if (Number("9") !== 9) {
+assert.sameValue(Number("0X9"), 9, 'Number("0X9") must return 9');
-  throw new Test262Error('#1: Number("9") === 9. Actual: ' + (Number("9")));
-}
-
-// CHECK#2
-if (+("0x9") !== 9) {
-  throw new Test262Error('#2: +("0x9") === 9. Actual: ' + (+("0x9")));
-}
-
-// CHECK#3
-if (Number("0X9") !== 9) {
-  throw new Test262Error('#3: Number("0X9") === 9. Actual: ' + (Number("0X9")));
-}

test/built-ins/Number/S9.3.1_A26.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xA'), Number('0XA'), Number('0xa') and
     Number('0Xa') with 10
 ---*/
-
+assert.sameValue(Number("0xa"), 10, 'Number("0xa") must return 10');
-// CHECK#1
+assert.sameValue(Number("0xA"), 10, 'Number("0xA") must return 10');
-if (Number("0xa") !== 10) {
+assert.sameValue(Number("0Xa"), 10, 'Number("0Xa") must return 10');
-  throw new Test262Error('#1: Number("0xa") === 10. Actual: ' + (Number("0xa")));
+assert.sameValue(+("0XA"), 10, 'The value of `+("0XA")` is expected to be 10');
-}
-
-// CHECK#2
-if (Number("0xA") !== 10) {
-  throw new Test262Error('#2: Number("0xA") === 10. Actual: ' + (Number("0xA")));
-}
-
-// CHECK#3
-if (Number("0Xa") !== 10) {
-  throw new Test262Error('#3: Number("0Xa") === 10. Actual: ' + (Number("0Xa")));
-}
-
-// CHECK#4
-if (+("0XA") !== 10) {
-  throw new Test262Error('#4: +("0XA") === 10. Actual: ' + (+("0XA")));
-}

test/built-ins/Number/S9.3.1_A27.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xB'), Number('0XB'), Number('0xb') and
     Number('0Xb') with 11
 ---*/
-
+assert.sameValue(Number("0xb"), 11, 'Number("0xb") must return 11');
-// CHECK#1
+assert.sameValue(Number("0xB"), 11, 'Number("0xB") must return 11');
-if (Number("0xb") !== 11) {
+assert.sameValue(+("0Xb"), 11, 'The value of `+("0Xb")` is expected to be 11');
-  throw new Test262Error('#1: Number("0xb") === 11. Actual: ' + (Number("0xb")));
+assert.sameValue(Number("0XB"), 11, 'Number("0XB") must return 11');
-}
-
-// CHECK#2
-if (Number("0xB") !== 11) {
-  throw new Test262Error('#2: Number("0xB") === 11. Actual: ' + (Number("0xB")));
-}
-
-// CHECK#3
-if (+("0Xb") !== 11) {
-  throw new Test262Error('#3: +("0Xb") === 11. Actual: ' + (+("0Xb")));
-}
-
-// CHECK#4
-if (Number("0XB") !== 11) {
-  throw new Test262Error('#4: Number("0XB") === 11. Actual: ' + (Number("0XB")));
-}

test/built-ins/Number/S9.3.1_A28.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xC'), Number('0XC'), Number('0xc') and
     Number('0Xc') with 12
 ---*/
-
+assert.sameValue(Number("0xc"), 12, 'Number("0xc") must return 12');
-// CHECK#1
+assert.sameValue(+("0xC"), 12, 'The value of `+("0xC")` is expected to be 12');
-if (Number("0xc") !== 12) {
+assert.sameValue(Number("0Xc"), 12, 'Number("0Xc") must return 12');
-  throw new Test262Error('#1: Number("0xc") === 12. Actual: ' + (Number("0xc")));
+assert.sameValue(Number("0XC"), 12, 'Number("0XC") must return 12');
-}
-
-// CHECK#2
-if (+("0xC") !== 12) {
-  throw new Test262Error('#2: +("0xC") === 12. Actual: ' + (+("0xC")));
-}
-
-// CHECK#3
-if (Number("0Xc") !== 12) {
-  throw new Test262Error('#3: Number("0Xc") === 12. Actual: ' + (Number("0Xc")));
-}
-
-// CHECK#4
-if (Number("0XC") !== 12) {
-  throw new Test262Error('#4: Number("0XC") === 12. Actual: ' + (Number("0XC")));
-}

test/built-ins/Number/S9.3.1_A29.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xD'), Number('0XD'), Number('0xd') and
     Number('0Xd') with 13
 ---*/
-
+assert.sameValue(+("0xd"), 13, 'The value of `+("0xd")` is expected to be 13');
-// CHECK#1
+assert.sameValue(Number("0xD"), 13, 'Number("0xD") must return 13');
-if (+("0xd") !== 13) {
+assert.sameValue(Number("0Xd"), 13, 'Number("0Xd") must return 13');
-  throw new Test262Error('#1: +("0xd") === 13. Actual: ' + (+("0xd")));
+assert.sameValue(Number("0XD"), 13, 'Number("0XD") must return 13');
-}
-
-// CHECK#2
-if (Number("0xD") !== 13) {
-  throw new Test262Error('#2: Number("0xD") === 13. Actual: ' + (Number("0xD")));
-}
-
-// CHECK#3
-if (Number("0Xd") !== 13) {
-  throw new Test262Error('#3: Number("0Xd") === 13. Actual: ' + (Number("0Xd")));
-}
-
-// CHECK#4
-if (Number("0XD") !== 13) {
-  throw new Test262Error('#4: Number("0XD") === 13. Actual: ' + (Number("0XD")));
-}

test/built-ins/Number/S9.3.1_A30.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xE'), Number('0XE'), Number('0xe') and
     Number('0Xe') with 14
 ---*/
-
+assert.sameValue(Number("0xe"), 14, 'Number("0xe") must return 14');
-// CHECK#1
+assert.sameValue(Number("0xE"), 14, 'Number("0xE") must return 14');
-if (Number("0xe") !== 14) {
+assert.sameValue(Number("0Xe"), 14, 'Number("0Xe") must return 14');
-  throw new Test262Error('#1: Number("0xe") === 14. Actual: ' + (Number("0xe")));
+assert.sameValue(+("0XE"), 14, 'The value of `+("0XE")` is expected to be 14');
-}
-
-// CHECK#2
-if (Number("0xE") !== 14) {
-  throw new Test262Error('#2: Number("0xE") === 14. Actual: ' + (Number("0xE")));
-}
-
-// CHECK#3
-if (Number("0Xe") !== 14) {
-  throw new Test262Error('#3: Number("0Xe") === 14. Actual: ' + (Number("0Xe")));
-}
-
-// CHECK#4
-if (+("0XE") !== 14) {
-  throw new Test262Error('#4: +("0XE") === 14. Actual: ' + (+("0XE")));
-}

test/built-ins/Number/S9.3.1_A31.js

@@ -8,23 +8,7 @@ description: >
     Compare Number('0xF'), Number('0XF'), Number('0xf') and
     Number('0Xf') with 15
 ---*/
-
+assert.sameValue(Number("0xf"), 15, 'Number("0xf") must return 15');
-// CHECK#1
+assert.sameValue(Number("0xF"), 15, 'Number("0xF") must return 15');
-if (Number("0xf") !== 15) {
+assert.sameValue(+("0Xf"), 15, 'The value of `+("0Xf")` is expected to be 15');
-  throw new Test262Error('#1: Number("0xf") === 15. Actual: ' + (Number("0xf")));
+assert.sameValue(Number("0XF"), 15, 'Number("0XF") must return 15');
-}
-
-// CHECK#2
-if (Number("0xF") !== 15) {
-  throw new Test262Error('#2: Number("0xF") === 15. Actual: ' + (Number("0xF")));
-}
-
-// CHECK#3
-if (+("0Xf") !== 15) {
-  throw new Test262Error('#3: +("0Xf") === 15. Actual: ' + (+("0Xf")));
-}
-
-// CHECK#4
-if (Number("0XF") !== 15) {
-  throw new Test262Error('#4: Number("0XF") === 15. Actual: ' + (Number("0XF")));
-}

test/built-ins/Number/S9.3.1_A32.js

@@ -10,28 +10,32 @@ info: |
 es5id: 9.3.1_A32
 description: Use various long numbers, for example, 1234567890.1234567890
 ---*/
+assert.sameValue(
+  Number("1234567890.1234567890"),
+  1234567890.1234567890,
+  'Number("1234567890.1234567890") must return 1234567890.1234567890'
+);
 
-// CHECK#1
+assert.sameValue(
-if (Number("1234567890.1234567890") !== 1234567890.1234567890) {
+  Number("1234567890.1234567890"),
-  throw new Test262Error('#1: Number("1234567890.1234567890") === 1234567890.1234567890. Actual: ' + (Number("1234567890.1234567890")));
+  1234567890.1234567000,
-}
+  'Number("1234567890.1234567890") must return 1234567890.1234567000'
+);
 
-// CHECK#2
+assert.notSameValue(
-if (Number("1234567890.1234567890") !== 1234567890.1234567000) {
+  +("1234567890.1234567890"),
-  throw new Test262Error('#2: Number("1234567890.1234567890") === 1234567890.1234567000. Actual: ' + (Number("1234567890.1234567890")));
+  1234567890.123456,
-}
+  'The value of +("1234567890.1234567890") is not 1234567890.123456'
+);
 
-// CHECK#3
+assert.sameValue(
-if (+("1234567890.1234567890") === 1234567890.123456) {
+  Number("0.12345678901234567890"),
-  throw new Test262Error('#3: +("1234567890.1234567890") !== 1234567890.123456');
+  0.123456789012345678,
-}
+  'Number("0.12345678901234567890") must return 0.123456789012345678'
+);
 
-// CHECK#4
+assert.sameValue(
-if (Number("0.12345678901234567890") !== 0.123456789012345678) {
+  Number("00.12345678901234567890"),
-  throw new Test262Error('#4: Number("0.12345678901234567890") === 0.123456789012345678. Actual: ' + (Number("0.12345678901234567890")));
+  0.123456789012345678,
-}
+  'Number("00.12345678901234567890") must return 0.123456789012345678'
-
+);
-// CHECK#4
-if (Number("00.12345678901234567890") !== 0.123456789012345678) {
-  throw new Test262Error('#4: Number("00.12345678901234567890") === 0.123456789012345678. Actual: ' + (Number("00.12345678901234567890")));
-}

test/built-ins/Number/S9.3.1_A3_T1.js

@@ -9,23 +9,22 @@ info: |
 es5id: 9.3.1_A3_T1
 description: static string
 ---*/
+assert.sameValue(
+  Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"),
+  0
+);
 
-// CHECK#1
+assert.sameValue(
-if (Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") !== Number("")) {
+  Number("\u0009\u000C\u0020\u00A0\u000A\u000D\u2028\u2029\u000B\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u30001234567890\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"),
-  throw new Test262Error('#1: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === Number("")');
+  1234567890
-}
+);
 
-// CHECK#2
+assert.sameValue(
-if (Number("\u0009\u000C\u0020\u00A0\u000A\u000D\u2028\u2029\u000B\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u30001234567890\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") !== Number("1234567890")) {
+  +("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000Infinity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"),
-  throw new Test262Error('#2: Number("\\u0009\\u000C\\u0020\\u00A0\\u000A\\u000D\\u2028\\u2029\\u000B\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u30001234567890\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === Number("1234567890")');
+  Infinity
-}
+);
 
-// CHECK#3
+assert.sameValue(
-if (!(+("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000Infinity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") == Number("Infinity"))) {
+  Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000-Infinity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"),
-  throw new Test262Error('#3: +("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000Infinity\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") == Number("Infinity")');
+  -Infinity
-}
+);
-
-// CHECK#4
-if (!(Number("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000-Infinity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000") == Number(-"Infinity"))) {
-  throw new Test262Error('#4: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000-Infinity\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") == Number("-Infinity")');
-}

test/built-ins/Number/S9.3.1_A3_T2.js

@@ -14,22 +14,22 @@ function dynaString(s1, s2) {
   return String(s1) + String(s2);
 }
 
-// CHECK#1
+assert.sameValue(
-if (Number(dynaString("\u0009\u000C\u0020\u00A0\u000B", "\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")) !== Number("")) {
+  Number(dynaString("\u0009\u000C\u0020\u00A0\u000B", "\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")),
-  throw new Test262Error('#1: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B"+"\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === Number("")');
+  0
-}
+);
 
-// CHECK#2
+assert.sameValue(
-if (+(dynaString("\u0009\u000C\u0020\u00A0\u000A\u000D\u2028\u2029\u000B12345", "67890\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")) !== Number("1234567890")) {
+  +(dynaString("\u0009\u000C\u0020\u00A0\u000A\u000D\u2028\u2029\u000B12345", "67890\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")),
-  throw new Test262Error('#2: +("\\u0009\\u000C\\u0020\\u00A0\\u000A\\u000D\\u2028\\u2029\\u000B12345"+"67890\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") === Number("1234567890")');
+  1234567890
-}
+);
 
-// CHECK#3
+assert.sameValue(
-if (!(Number(dynaString("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029Infi", "nity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")) == Number("Infinity"))) {
+  Number(dynaString("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029Infi", "nity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")),
-  throw new Test262Error('#3: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029Infi"+"nity\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") == Number("Infinity")');
+  Infinity
-}
+);
 
-// CHECK#4
+assert.sameValue(
-if (!(Number(dynaString("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029-Infi", "nity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")) == Number(-"Infinity"))) {
+  Number(dynaString("\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029-Infi", "nity\u0009\u000C\u0020\u00A0\u000B\u000A\u000D\u2028\u2029\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000")),
-  throw new Test262Error('#4: Number("\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029-Infi"+"nity\\u0009\\u000C\\u0020\\u00A0\\u000B\\u000A\\u000D\\u2028\\u2029\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000") == Number("-Infinity")');
+  -Infinity
-}
+);

test/built-ins/Number/S9.3.1_A4_T1.js

@@ -8,43 +8,34 @@ info: |
 es5id: 9.3.1_A4_T1
 description: Compare Number('+any_number') with Number('any_number')
 ---*/
+assert.sameValue(Number("+0"), Number("0"), 'Number("+0") must return the same value returned by Number("0")');
 
-// CHECK#1
+assert.sameValue(
-if (Number("+0") !== Number("0")) {
+  Number("+Infinity"),
-  throw new Test262Error('#1.1: Number("+0") === Number("0")');
+  Infinity
-} else {
+);
-  // CHECK#2
-  if (1 / Number("+0") !== 1 / Number("0")) {
-    throw new Test262Error('#2.2: 1/Number("+0") === 1/Number("0")');
-  }
-}
 
-// CHECK#3
+assert.sameValue(
-if (Number("+Infinity") !== Number("Infinity")) {
+  Number("+1234.5678"),
-  throw new Test262Error('#3: Number("+Infinity") === Number("Infinity")');
+  1234.5678
-}
+);
 
-// CHECK#4
+assert.sameValue(
-if (Number("+1234.5678") !== Number("1234.5678")) {
+  Number("+1234.5678e90"),
-  throw new Test262Error('#4: Number("+1234.5678") === Number("1234.5678")');
+  1234.5678e90
-}
+);
 
-// CHECK#5
+assert.sameValue(
-if (Number("+1234.5678e90") !== Number("1234.5678e90")) {
+  Number("+1234.5678E90"),
-  throw new Test262Error('#5: Number("+1234.5678e90") === Number("1234.5678e90")');
+  1234.5678E90
-}
+);
 
-// CHECK#6
+assert.sameValue(
-if (Number("+1234.5678E90") !== Number("1234.5678E90")) {
+  Number("+1234.5678e-90"),
-  throw new Test262Error('#6: Number("+1234.5678E90") === Number("1234.5678E90")');
+  1234.5678e-90
-}
+);
 
-// CHECK#7
+assert.sameValue(
-if (Number("+1234.5678e-90") !== Number("1234.5678e-90")) {
+  Number("+1234.5678E-90"),
-  throw new Test262Error('#7: Number("+1234.5678e-90") === Number("1234.5678e-90")');
+  1234.5678E-90
-}
+);
-
-// CHECK#8
-if (Number("+1234.5678E-90") !== Number("1234.5678E-90")) {
-  throw new Test262Error('#8: Number("+1234.5678E-90") === Number("1234.5678E-90")');
-}

test/built-ins/Number/S9.3.1_A4_T2.js

@@ -13,42 +13,37 @@ function dynaString(s1, s2) {
   return String(s1) + String(s2);
 }
 
-// CHECK#1
+assert.sameValue(
-if (Number(dynaString("+", "0")) !== Number("0")) {
+  Number(dynaString("+", "0")),
-  throw new Test262Error('#1: Number("+"+"0") === Number("0")');
+  0
-} else {
+);
-  // CHECK#2
-  if (1 / Number(dynaString("+", "0")) !== 1 / Number("0")) {
-    throw new Test262Error('#2: 1/Number("+"+"0") === 1/Number("0")');
-  }
-}
 
-// CHECK#3
+assert.sameValue(
-if (Number(dynaString("+Infi", "nity")) !== Number("Infinity")) {
+  Number(dynaString("+Infi", "nity")),
-  throw new Test262Error('#3: Number("+Infin"+"ity") === Number("Infinity")');
+  Infinity
-}
+);
 
-// CHECK#4
+assert.sameValue(
-if (Number(dynaString("+1234.", "5678")) !== Number("1234.5678")) {
+  Number(dynaString("+1234.", "5678")),
-  throw new Test262Error('#4: Number("+1234."+"5678") === Number("1234.5678")');
+  1234.5678
-}
+);
 
-// CHECK#5
+assert.sameValue(
-if (Number(dynaString("+1234.", "5678e90")) !== Number("1234.5678e90")) {
+  Number(dynaString("+1234.", "5678e90")),
-  throw new Test262Error('#5: Number("+1234."+"5678e90") === Number("1234.5678e90")');
+  1234.5678e90
-}
+);
 
-// CHECK#6
+assert.sameValue(
-if (Number(dynaString("+1234.", "5678E90")) !== Number("1234.5678E90")) {
+  Number(dynaString("+1234.", "5678E90")),
-  throw new Test262Error('#6: Number("+1234."+"5678E90") === Number("1234.5678E90")');
+  1234.5678E90
-}
+);
 
-// CHECK#7
+assert.sameValue(
-if (Number(dynaString("+1234.", "5678e-90")) !== Number("1234.5678e-90")) {
+  Number(dynaString("+1234.", "5678e-90")),
-  throw new Test262Error('#7: Number("+1234."+"5678e-90") === Number("1234.5678e-90")');
+  1234.5678e-90
-}
+);
 
-// CHECK#8
+assert.sameValue(
-if (Number(dynaString("+1234.", "5678E-90")) !== Number("1234.5678E-90")) {
+  Number(dynaString("+1234.", "5678E-90")),
-  throw new Test262Error('#8: Number("+1234."+"5678E-90") === Number("1234.5678E-90")');
+  1234.5678E-90
-}
+);

test/built-ins/Number/S9.3.1_A5_T1.js

@@ -8,53 +8,37 @@ info: |
 es5id: 9.3.1_A5_T1
 description: Compare Number('-any_number') with -Number('any_number')
 ---*/
+assert.sameValue(Number("-0"), -0);
+assert.sameValue(Number("-Infinity"), -Infinity);
 
-// CHECK#1
+assert.sameValue(
-if (Number("-0") !== -Number("0")) {
+  Number("-1234567890"),
-  throw new Test262Error('#1: Number("-0") === -Number("0")');
+  -1234567890
-} else {
+);
-  // CHECK#2
-  if (1 / Number("-0") !== -1 / Number("0")) {
-    throw new Test262Error('#2: 1/Number("-0") === -1/Number("0")');
-  }
-}
 
-// CHECK#3
+assert.sameValue(Number("-1234.5678"), -1234.5678);
-if (Number("-Infinity") !== -Number("Infinity")) {
-  throw new Test262Error('#3: Number("-Infinity") === -Number("Infinity")');
-}
 
-// CHECK#4
+assert.sameValue(
-if (Number("-1234567890") !== -Number("1234567890")) {
+  Number("-1234.5678e90"),
-  throw new Test262Error('#4: Number("-1234567890") === -Number("1234567890")');
+  -1234.5678e90
-}
+);
 
-// CHECK#5
+assert.sameValue(
-if (Number("-1234.5678") !== -Number("1234.5678")) {
+  Number("-1234.5678E90"),
-  throw new Test262Error('#5: Number("-1234.5678") === -Number("1234.5678")');
+  -1234.5678E90
-}
+);
 
-// CHECK#6
+assert.sameValue(
-if (Number("-1234.5678e90") !== -Number("1234.5678e90")) {
+  Number("-1234.5678e-90"),
-  throw new Test262Error('#6: Number("-1234.5678e90") === -Number("1234.5678e90")');
+  -1234.5678e-90
-}
+);
 
-// CHECK#7
+assert.sameValue(
-if (Number("-1234.5678E90") !== -Number("1234.5678E90")) {
+  Number("-1234.5678E-90"),
-  throw new Test262Error('#6: Number("-1234.5678E90") === -Number("1234.5678E90")');
+  -1234.5678E-90
-}
+);
 
-// CHECK#8
+assert.sameValue(
-if (Number("-1234.5678e-90") !== -Number("1234.5678e-90")) {
+  Number("-Infinity"),
-  throw new Test262Error('#6: Number("-1234.5678e-90") === -Number("1234.5678e-90")');
+  Number.NEGATIVE_INFINITY
-}
+);
-
-// CHECK#9
-if (Number("-1234.5678E-90") !== -Number("1234.5678E-90")) {
-  throw new Test262Error('#6: Number("-1234.5678E-90") === -Number("1234.5678E-90")');
-}
-
-// CHECK#10
-if (Number("-Infinity") !== Number.NEGATIVE_INFINITY) {
-  throw new Test262Error('#3: Number("-Infinity") === Number.NEGATIVE_INFINITY');
-}

test/built-ins/Number/S9.3.1_A5_T2.js

@@ -8,138 +8,30 @@ info: |
 es5id: 9.3.1_A5_T2
 description: Compare Number('-[or +]any_number') with -[or without -]any_number)
 ---*/
-
+assert.sameValue(Number("1"), 1, 'Number("1") must return 1');
-// CHECK#1
+assert.sameValue(Number("+1"), 1, 'Number("+1") must return 1');
-if (Number("1") !== 1) {
+assert.sameValue(Number("-1"), -1, 'Number("-1") must return -1');
-  throw new Test262Error('#1: Number("1") === 1');
+assert.sameValue(Number("2"), 2, 'Number("2") must return 2');
-}
+assert.sameValue(Number("+2"), 2, 'Number("+2") must return 2');
-
+assert.sameValue(Number("-2"), -2, 'Number("-2") must return -2');
-// CHECK#2
+assert.sameValue(Number("3"), 3, 'Number("3") must return 3');
-if (Number("+1") !== 1) {
+assert.sameValue(Number("+3"), 3, 'Number("+3") must return 3');
-  throw new Test262Error('#3: Number("+1") === 1');
+assert.sameValue(Number("-3"), -3, 'Number("-3") must return -3');
-}
+assert.sameValue(Number("4"), 4, 'Number("4") must return 4');
-
+assert.sameValue(Number("+4"), 4, 'Number("+4") must return 4');
-// CHECK#3
+assert.sameValue(Number("-4"), -4, 'Number("-4") must return -4');
-if (Number("-1") !== -1) {
+assert.sameValue(Number("5"), 5, 'Number("5") must return 5');
-  throw new Test262Error('#3: Number("-1") === -1');
+assert.sameValue(Number("+5"), 5, 'Number("+5") must return 5');
-}
+assert.sameValue(Number("-5"), -5, 'Number("-5") must return -5');
-
+assert.sameValue(Number("6"), 6, 'Number("6") must return 6');
-// CHECK#4
+assert.sameValue(Number("+6"), 6, 'Number("+6") must return 6');
-if (Number("2") !== 2) {
+assert.sameValue(Number("-6"), -6, 'Number("-6") must return -6');
-  throw new Test262Error('#4: Number("2") === 2');
+assert.sameValue(Number("7"), 7, 'Number("7") must return 7');
-}
+assert.sameValue(Number("+7"), 7, 'Number("+7") must return 7');
-
+assert.sameValue(Number("-7"), -7, 'Number("-7") must return -7');
-// CHECK#5
+assert.sameValue(Number("8"), 8, 'Number("8") must return 8');
-if (Number("+2") !== 2) {
+assert.sameValue(Number("+8"), 8, 'Number("+8") must return 8');
-  throw new Test262Error('#5: Number("+2") === 2');
+assert.sameValue(Number("-8"), -8, 'Number("-8") must return -8');
-}
+assert.sameValue(Number("9"), 9, 'Number("9") must return 9');
-
+assert.sameValue(Number("+9"), 9, 'Number("+9") must return 9');
-// CHECK#6
+assert.sameValue(Number("-9"), -9, 'Number("-9") must return -9');
-if (Number("-2") !== -2) {
-  throw new Test262Error('#6: Number("-2") === -2');
-}
-
-// CHECK#7
-if (Number("3") !== 3) {
-  throw new Test262Error('#7: Number("3") === 3');
-}
-
-// CHECK#8
-if (Number("+3") !== 3) {
-  throw new Test262Error('#8: Number("+3") === 3');
-}
-
-// CHECK#9
-if (Number("-3") !== -3) {
-  throw new Test262Error('#9: Number("-3") === -3');
-}
-
-// CHECK#10
-if (Number("4") !== 4) {
-  throw new Test262Error('#10: Number("4") === 4');
-}
-
-// CHECK#11
-if (Number("+4") !== 4) {
-  throw new Test262Error('#11: Number("+4") === 4');
-}
-
-// CHECK#12
-if (Number("-4") !== -4) {
-  throw new Test262Error('#12: Number("-4") === -4');
-}
-
-// CHECK#13
-if (Number("5") !== 5) {
-  throw new Test262Error('#13: Number("5") === 5');
-}
-
-// CHECK#14
-if (Number("+5") !== 5) {
-  throw new Test262Error('#14: Number("+5") === 5');
-}
-
-// CHECK#15
-if (Number("-5") !== -5) {
-  throw new Test262Error('#15: Number("-5") === -5');
-}
-
-// CHECK#16
-if (Number("6") !== 6) {
-  throw new Test262Error('#16: Number("6") === 6');
-}
-
-// CHECK#17
-if (Number("+6") !== 6) {
-  throw new Test262Error('#17: Number("+6") === 6');
-}
-
-// CHECK#18
-if (Number("-6") !== -6) {
-  throw new Test262Error('#18: Number("-6") === -6');
-}
-
-// CHECK#19
-if (Number("7") !== 7) {
-  throw new Test262Error('#19: Number("7") === 7');
-}
-
-// CHECK#20
-if (Number("+7") !== 7) {
-  throw new Test262Error('#20: Number("+7") === 7');
-}
-
-// CHECK#21
-if (Number("-7") !== -7) {
-  throw new Test262Error('#21: Number("-7") === -7');
-}
-
-// CHECK#22
-if (Number("8") !== 8) {
-  throw new Test262Error('#22: Number("8") === 8');
-}
-
-// CHECK#23
-if (Number("+8") !== 8) {
-  throw new Test262Error('#23: Number("+8") === 8');
-}
-
-// CHECK#24
-if (Number("-8") !== -8) {
-  throw new Test262Error('#24: Number("-8") === -8');
-}
-
-// CHECK#25
-if (Number("9") !== 9) {
-  throw new Test262Error('#25: Number("9") === 9');
-}
-
-// CHECK#26
-if (Number("+9") !== 9) {
-  throw new Test262Error('#26: Number("+9") === 9');
-}
-
-// CHECK#27
-if (Number("-9") !== -9) {
-  throw new Test262Error('#27: Number("-9") === -9');
-}

test/built-ins/Number/S9.3.1_A5_T3.js

@@ -13,52 +13,44 @@ function dynaString(s1, s2) {
   return String(s1) + String(s2);
 }
 
-// CHECK#1
+assert.sameValue(Number(dynaString("-", "0")), -0, 'Number(dynaString("-", "0")) must return -Number("0")');
-if (Number(dynaString("-", "0")) !== -Number("0")) {
-  throw new Test262Error('#1: Number("-"+"0") === -Number("0")');
-} else {
-  // CHECK#2
-  if (1 / Number(dynaString("-", "0")) !== -1 / Number("0")) {
-    throw new Test262Error('#2: 1/Number("-"+"0") === -1/Number("0")');
-  }
-}
 
-// CHECK#3
+assert.sameValue(
-if (Number(dynaString("-Infi", "nity")) !== -Number("Infinity")) {
+  Number(dynaString("-Infi", "nity")),
-  throw new Test262Error('#3: Number("-Infi"+"nity") === -Number("Infinity")');
+  -Infinity
-}
+);
 
-// CHECK#4
+assert.sameValue(
-if (Number(dynaString("-12345", "67890")) !== -Number("1234567890")) {
+  Number(dynaString("-12345", "67890")),
-  throw new Test262Error('#4: Number("-12345"+"67890") === -Number("1234567890")');
+  -1234567890
-}
+);
 
-// CHECK#5
+assert.sameValue(
-if (Number(dynaString("-1234.", "5678")) !== -Number("1234.5678")) {
+  Number(dynaString("-1234.", "5678")),
-  throw new Test262Error('#5: Number("-1234."+"5678") === -Number("1234.5678")');
+  -1234.5678
-}
+);
 
-// CHECK#6
+assert.sameValue(
-if (Number(dynaString("-1234.", "5678e90")) !== -Number("1234.5678e90")) {
+  Number(dynaString("-1234.", "5678e90")),
-  throw new Test262Error('#6: Number("-1234."+"5678e90") === -Number("1234.5678e90")');
+  -1234.5678e90
-}
+);
 
-// CHECK#7
+assert.sameValue(
-if (Number(dynaString("-1234.", "5678E90")) !== -Number("1234.5678E90")) {
+  Number(dynaString("-1234.", "5678E90")),
-  throw new Test262Error('#6: Number("-1234."+"5678E90") === -Number("1234.5678E90")');
+  -1234.5678E90
-}
+);
 
-// CHECK#8
+assert.sameValue(
-if (Number(dynaString("-1234.", "5678e-90")) !== -Number("1234.5678e-90")) {
+  Number(dynaString("-1234.", "5678e-90")),
-  throw new Test262Error('#6: Number("-1234."+"5678e-90") === -Number("1234.5678e-90")');
+  -1234.5678e-90
-}
+);
 
-// CHECK#9
+assert.sameValue(
-if (Number(dynaString("-1234.", "5678E-90")) !== -Number("1234.5678E-90")) {
+  Number(dynaString("-1234.", "5678E-90")),
-  throw new Test262Error('#6: Number("-1234."+"5678E-90") === -Number("1234.5678E-90")');
+  -1234.5678E-90
-}
+);
 
-// CHECK#10
+assert.sameValue(
-if (Number(dynaString("-Infi", "nity")) !== Number.NEGATIVE_INFINITY) {
+  Number(dynaString("-Infi", "nity")),
-  throw new Test262Error('#3: Number("-Infi"+"nity") === Number.NEGATIVE_INFINITY');
+  Number.NEGATIVE_INFINITY
-}
+);

test/built-ins/Number/S9.3.1_A6_T1.js

@@ -10,23 +10,12 @@ description: >
     Compare Number('Infinity') with Number.POSITIVE_INFINITY,
     10e10000, 10E10000 and Number("10e10000")
 ---*/
+assert.sameValue(Number("Infinity"), Number.POSITIVE_INFINITY, 'Number("Infinity") returns Number.POSITIVE_INFINITY');
+assert.sameValue(Number("Infinity"), 10e10000, 'Number("Infinity") must return 10e10000');
+assert.sameValue(Number("Infinity"), 10E10000, 'Number("Infinity") must return 10E10000');
 
-// CHECK#1
+assert.sameValue(
-if (Number("Infinity") !== Number.POSITIVE_INFINITY) {
+  Number("Infinity"),
-  throw new Test262Error('#1: Number("Infinity") === Number.POSITIVE_INFINITY');
+  10e10000,
-}
+  'Number("Infinity") must return the same value returned by Number("10e10000")'
-
+);
-// CHECK#2
-if (Number("Infinity") !== 10e10000) {
-  throw new Test262Error('#2: Number("Infinity") === 10e10000');
-}
-
-// CHECK#3
-if (Number("Infinity") !== 10E10000) {
-  throw new Test262Error('#3: Number("Infinity") === 10E10000');
-}
-
-// CHECK#4
-if (Number("Infinity") !== Number("10e10000")) {
-  throw new Test262Error('#4: Number("Infinity") === Number("10e10000")');
-}

test/built-ins/Number/S9.3.1_A6_T2.js

@@ -16,22 +16,26 @@ function dynaString(s1, s2) {
 }
 
 
-// CHECK#1
+assert.sameValue(
-if (Number(dynaString("Infi", "nity")) !== Number.POSITIVE_INFINITY) {
+  Number(dynaString("Infi", "nity")),
-  throw new Test262Error('#1: Number("Infi"+"nity") === Number.POSITIVE_INFINITY');
+  Number.POSITIVE_INFINITY,
-}
+  'Number(dynaString("Infi", "nity")) returns Number.POSITIVE_INFINITY'
+);
 
-// CHECK#2
+assert.sameValue(
-if (Number(dynaString("Infi", "nity")) !== 10e10000) {
+  Number(dynaString("Infi", "nity")),
-  throw new Test262Error('#2: Number("Infi"+"nity") === 10e10000');
+  10e10000,
-}
+  'Number(dynaString("Infi", "nity")) must return 10e10000'
+);
 
-// CHECK#3
+assert.sameValue(
-if (Number(dynaString("Infi", "nity")) !== 10E10000) {
+  Number(dynaString("Infi", "nity")),
-  throw new Test262Error('#3: Number("Infi"+"nity") === 10E10000');
+  10E10000,
-}
+  'Number(dynaString("Infi", "nity")) must return 10E10000'
+);
 
-// CHECK#4
+assert.sameValue(
-if (Number(dynaString("Infi", "nity")) !== Number("10e10000")) {
+  Number(dynaString("Infi", "nity")),
-  throw new Test262Error('#4: Number("Infi"+"nity") === Number("10e10000")');
+  Number("10e10000"),
-}
+  'Number(dynaString("Infi", "nity")) must return the same value returned by Number("10e10000")'
+);

test/built-ins/Number/S9.3.1_A7.js

@@ -9,8 +9,8 @@ info: |
 es5id: 9.3.1_A7
 description: Compare Number('1234.5678') with Number('1234')+(+('5678')*1e-4)
 ---*/
-
+assert.sameValue(
-// CHECK#1
+  Number("1234.5678"),
-if (Number("1234.5678") !== Number("1234") + (+("5678") * 1e-4)) {
+  1234.5678,
-  throw new Test262Error('#1: Number("1234.5678") === Number("1234")+(+("5678")*1e-4)');
+  'Number("1234.5678") must return Number("1234") + (+("5678") * 1e-4)'
-}
+);

test/built-ins/Number/S9.3.1_A8.js

@@ -10,13 +10,5 @@ description: >
     Compare Number('1234e5') and Number('1234.e5') with
     Number('1234')*1e5
 ---*/
-
+assert.sameValue(Number("1234e5"), 123400000, 'Number("1234e5") must return 123400000');
-// CHECK#1
+assert.sameValue(Number("1234.e5"), 123400000, 'Number("1234.e5") must return 123400000');
-if (Number("1234e5") !== Number("1234") * 1e5) {
-  throw new Test262Error('#1: Number("1234e5") === Number("1234")*1e5');
-}
-
-// CHECK#2
-if (Number("1234.e5") !== +("1234") * 1e5) {
-  throw new Test262Error('#2: Number("1234.e5") === +("1234")*1e5');
-}

test/built-ins/Number/S9.3.1_A9.js

@@ -13,13 +13,14 @@ description: >
     (Number('1234')+(Number('5678')*1e-4))*1e9,  and +('1234.5678e-9')
     with (Number('1234')+(Number('5678')*1e-4))*1e-9
 ---*/
+assert.sameValue(
+  (Number("1234") + (Number("5678") * 1e-4)) * 1e9,
+  1234.5678e9,
+  'Number("1234.5678e9") must return (Number("1234") + (Number("5678") * 1e-4)) * 1e9'
+);
 
-// CHECK#1
+assert.sameValue(
-if (Number("1234.5678e9") !== (Number("1234") + (Number("5678") * 1e-4)) * 1e9) {
+  (Number("1234") + (Number("5678") * 1e-4)) * 1e-9,
-  throw new Test262Error('#1: Number("1234.5678e9") === (Number("1234")+(Number("5678")*1e-4))*1e9');
+  1234.5678e-9,
-}
+  'The value of `+("1234.5678e-9")` is expected to be (Number("1234") + (Number("5678") * 1e-4)) * 1e-9'
-
+);
-// CHECK#2
-if (+("1234.5678e-9") !== (Number("1234") + (Number("5678") * 1e-4)) * 1e-9) {
-  throw new Test262Error('#2: +("1234.5678e-9") === (Number("1234")+(Number("5678")*1e-4))*1e-9');
-}

test/built-ins/Number/S9.3_A2_T1.js

@@ -6,12 +6,4 @@ info: Result of number conversion from null value is +0
 es5id: 9.3_A2_T1
 description: null convert to Number by explicit transformation
 ---*/
-
+assert.sameValue(Number(null), 0, 'Number(null) must return 0');
-// CHECK #1
-if (Number(null) !== 0) {
-  throw new Test262Error('#1.1: Number(null) === 0. Actual: ' + (Number(null)));
-} else {
-  if (1 / Number(null) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#1.2: Number(null) === +0. Actual: -0');
-  }
-}

test/built-ins/Number/S9.3_A3_T1.js

@@ -8,17 +8,5 @@ info: |
 es5id: 9.3_A3_T1
 description: False and true convert to Number by explicit transformation
 ---*/
-
+assert.sameValue(Number(false), +0, 'Number(false) must return +0');
-// CHECK#1
+assert.sameValue(Number(true), 1, 'Number(true) must return 1');
-if (Number(false) !== +0) {
-  throw new Test262Error('#1.1: Number(false) === 0. Actual: ' + (Number(false)));
-} else {
-  if (1 / Number(false) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#1.2: Number(false) === +0. Actual: -0');
-  }
-}
-
-// CHECK#2
-if (Number(true) !== 1) {
-  throw new Test262Error('#2: Number(true) === 1. Actual: ' + (Number(true)));
-}

test/built-ins/Number/S9.3_A4.1_T1.js

@@ -10,23 +10,7 @@ description: >
     Some numbers including Number.MAX_VALUE and Number.MIN_VALUE are
     converted to Number with explicit transformation
 ---*/
-
+assert.sameValue(Number(13), 13, 'Number(13) must return 13');
-// CHECK#1
+assert.sameValue(Number(-13), -13, 'Number(-13) must return -13');
-if (Number(13) !== 13) {
+assert.sameValue(Number(1.3), 1.3, 'Number(1.3) must return 1.3');
-  throw new Test262Error('#1: Number(13) === 13. Actual: ' + (Number(13)));
+assert.sameValue(Number(-1.3), -1.3, 'Number(-1.3) must return -1.3');
-}
-
-// CHECK#2
-if (Number(-13) !== -13) {
-  throw new Test262Error('#2: Number(-13) === -13. Actual: ' + (Number(-13)));
-}
-
-// CHECK#3
-if (Number(1.3) !== 1.3) {
-  throw new Test262Error('#3: Number(1.3) === 1.3. Actual: ' + (Number(1.3)));
-}
-
-// CHECK#4
-if (Number(-1.3) !== -1.3) {
-  throw new Test262Error('#4: Number(-1.3) === -1.3. Actual: ' + (Number(-1.3)));
-}

test/built-ins/Number/S9.3_A4.2_T1.js

@@ -13,42 +13,22 @@ description: >
 ---*/
 
 // CHECK#1
-assert.sameValue(Number(NaN), NaN, "NaN");
+assert.sameValue(Number(NaN), NaN, 'Number(true) returns NaN');
 
-// CHECK#2
+assert.sameValue(Number(+0), +0, 'Number(+0) must return +0');
-if (Number(+0) !== +0) {
+assert.sameValue(Number(-0), -0, 'Number(-0) must return -0');
-  throw new Test262Error('#2.1: Number(+0) === 0. Actual: ' + (Number(+0)));
-} else {
-  if (1 / Number(+0) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#2.2: Number(+0) === +0. Actual: -0');
-  }
-}
 
-// CHECK#3
+assert.sameValue(
-if (Number(-0) !== -0) {
+  Number(Number.POSITIVE_INFINITY),
-  throw new Test262Error('#3.1: Number(-0) === 0. Actual: ' + (Number(-0)));
+  Number.POSITIVE_INFINITY,
-} else {
+  'Number(Number.POSITIVE_INFINITY) returns Number.POSITIVE_INFINITY'
-  if (1 / Number(-0) !== Number.NEGATIVE_INFINITY) {
+);
-    throw new Test262Error('#3.2: Number(-0) === -0. Actual: +0');
-  }
-}
 
-// CHECK#4
+assert.sameValue(
-if (Number(Number.POSITIVE_INFINITY) !== Number.POSITIVE_INFINITY) {
+  Number(Number.NEGATIVE_INFINITY),
-  throw new Test262Error('#4: Number(+Infinity) === +Infinity. Actual: ' + (Number(+Infinity)));
+  Number.NEGATIVE_INFINITY,
-}
+  'Number(Number.NEGATIVE_INFINITY) returns Number.NEGATIVE_INFINITY'
+);
 
-// CHECK#5
+assert.sameValue(Number(Number.MAX_VALUE), Number.MAX_VALUE, 'Number(Number.MAX_VALUE) returns Number.MAX_VALUE');
-if (Number(Number.NEGATIVE_INFINITY) !== Number.NEGATIVE_INFINITY) {
+assert.sameValue(Number(Number.MIN_VALUE), Number.MIN_VALUE, 'Number(Number.MIN_VALUE) returns Number.MIN_VALUE');
-  throw new Test262Error('#5: Number(-Infinity) === -Infinity. Actual: ' + (Number(-Infinity)));
-}
-
-// CHECK#6
-if (Number(Number.MAX_VALUE) !== Number.MAX_VALUE) {
-  throw new Test262Error('#6: Number(Number.MAX_VALUE) === Number.MAX_VALUE. Actual: ' + (Number(Number.MAX_VALUE)));
-}
-
-// CHECK#7
-if (Number(Number.MIN_VALUE) !== Number.MIN_VALUE) {
-  throw new Test262Error('#7: Number(Number.MIN_VALUE) === Number.MIN_VALUE. Actual: ' + (Number(Number.MIN_VALUE)));
-}

test/built-ins/Number/S9.3_A5_T1.js

@@ -11,62 +11,24 @@ description: >
     Number(null),  new Number(void 0) and others convert to Number by
     explicit transformation
 ---*/
-
+assert.sameValue(Number(new Number()), 0, 'Number(new Number()) must return 0');
-// CHECK#1
+assert.sameValue(Number(new Number(0)), 0, 'Number(new Number(0)) must return 0');
-if (Number(new Number()) !== 0) {
-  throw new Test262Error('#1: Number(new Number()) === 0. Actual: ' + (Number(new Number())));
-}
-
-// CHECK#2
-if (Number(new Number(0)) !== 0) {
-  throw new Test262Error('#2: Number(new Number(0)) === 0. Actual: ' + (Number(new Number(0))));
-}
 
 // CHECK#3
-assert.sameValue(Number(new Number(NaN)), NaN, "Number(new Number(NaN)");
+assert.sameValue(Number(new Number(NaN)), NaN, 'Number(new Number(NaN)) returns NaN');
 
-// CHECK#4
+assert.sameValue(Number(new Number(null)), 0, 'Number(new Number(null)) must return 0');
-if (Number(new Number(null)) !== 0) {
-  throw new Test262Error('#4.1: Number(new Number(null)) === 0. Actual: ' + (Number(new Number(null))));
-} else {
-  if (1 / Number(new Number(null)) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#4.2: Number(new Number(null)) === +0. Actual: -0');
-  }
-}
 
 // CHECK#5
-assert.sameValue(Number(new Number(void 0)), NaN, "Number(new Number(void 0)");
+assert.sameValue(Number(new Number(void 0)), NaN, 'Number(new Number(void 0)) returns NaN');
 
-// CHECK#6
+assert.sameValue(Number(new Number(true)), 1, 'Number(new Number(true)) must return 1');
-if (Number(new Number(true)) !== 1) {
+assert.sameValue(Number(new Number(false)), +0, 'Number(new Number(false)) must return +0');
-  throw new Test262Error('#6: Number(new Number(true)) === 1. Actual: ' + (Number(new Number(true))));
+assert.sameValue(Number(new Boolean(true)), 1, 'Number(new Boolean(true)) must return 1');
-}
+assert.sameValue(Number(new Boolean(false)), +0, 'Number(new Boolean(false)) must return +0');
-
-// CHECK#7
-if (Number(new Number(false)) !== +0) {
-  throw new Test262Error('#7.1: Number(new Number(false)) === 0. Actual: ' + (Number(new Number(false))));
-} else {
-  if (1 / Number(new Number(false)) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#7.2: Number(new Number(false)) === +0. Actual: -0');
-  }
-}
-
-// CHECK#8
-if (Number(new Boolean(true)) !== 1) {
-  throw new Test262Error('#8: Number(new Boolean(true)) === 1. Actual: ' + (Number(new Boolean(true))));
-}
-
-// CHECK#9
-if (Number(new Boolean(false)) !== +0) {
-  throw new Test262Error('#9.1: Number(new Boolean(false)) === 0. Actual: ' + (Number(new Boolean(false))));
-} else {
-  if (1 / Number(new Boolean(false)) !== Number.POSITIVE_INFINITY) {
-    throw new Test262Error('#9.2: Number(new Boolean(false)) === +0. Actual: -0');
-  }
-}
 
 // CHECK#10
-assert.sameValue(Number(new Array(2, 4, 8, 16, 32)), NaN, "Number(new Array(2,4,8,16,32))");
+assert.sameValue(Number(new Array(2, 4, 8, 16, 32)), NaN, 'Number(new Array(2, 4, 8, 16, 32)) returns NaN');
 
 // CHECK#11
 var myobj1 = {
@@ -81,7 +43,7 @@ var myobj1 = {
   }
 };
 
-assert.sameValue(Number(myobj1), NaN, "Number(myobj1)");
+assert.sameValue(Number(myobj1), NaN, 'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}, valueOf: function() {return "[object MyObj]";}}) returns NaN');
 
 // CHECK#12
 var myobj2 = {
@@ -96,9 +58,11 @@ var myobj2 = {
   }
 };
 
-if (Number(myobj2) !== 9876543210) {
+assert.sameValue(
-  throw new Test262Error("#12: Number(myobj2) calls ToPrimitive with hint Number. Exptected: 9876543210. Actual: " + (Number(myobj2)));
+  Number(myobj2),
-}
+  9876543210,
+  'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}, valueOf: function() {return "9876543210";}}) must return 9876543210'
+);
 
 
 // CHECK#13
@@ -111,7 +75,7 @@ var myobj3 = {
   }
 };
 
-assert.sameValue(Number(myobj3), NaN, "Number(myobj3)");
+assert.sameValue(Number(myobj3), NaN, 'Number("{ToNumber: function() {return 12345;}, toString: function() {return "[object MyObj]";}}) returns NaN');
 
 // CHECK#14
 var myobj4 = {
@@ -123,9 +87,11 @@ var myobj4 = {
   }
 };
 
-if (Number(myobj4) !== 67890) {
+assert.sameValue(
-  throw new Test262Error("#14: Number(myobj4) calls ToPrimitive with hint Number. Exptected: 67890.  Actual: " + (Number(myobj4)));
+  Number(myobj4),
-}
+  67890,
+  'Number("{ToNumber: function() {return 12345;}, toString: function() {return "67890";}}) must return 67890'
+);
 
 // CHECK#15
 var myobj5 = {
@@ -134,4 +100,4 @@ var myobj5 = {
   }
 };
 
-assert.sameValue(Number(myobj5), NaN, "Number(myobj5)");
+assert.sameValue(Number(myobj5), NaN, 'Number({ToNumber: function() {return 12345;}}) returns NaN');

test/built-ins/Number/prototype/S15.7.3.1_A2_T1.js

@@ -8,14 +8,16 @@ description: >
     Checking type of Number.prototype property - test based on
     deleting Number.prototype.toString
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  typeof Number.prototype,
-if (typeof Number.prototype !== "object") {
+  "object",
-  throw new Test262Error('#1: typeof Number.prototype === "object"');
+  'The value of `typeof Number.prototype` is expected to be "object"'
-}
+);
 
 delete Number.prototype.toString;
 
-if (Number.prototype.toString() !== "[object Number]") {
+assert.sameValue(
-  throw new Test262Error('#3: The [[Class]] property of the Number prototype object is set to "Number"');
+  Number.prototype.toString(),
-}
+  "[object Number]",
+  'Number.prototype.toString() must return "[object Number]"'
+);

test/built-ins/Number/prototype/S15.7.3.1_A2_T2.js

@@ -8,14 +8,16 @@ description: >
     Checking type of Number.prototype property - test based on
     overwriting of Number.prototype.toString
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  typeof Number.prototype,
-if (typeof Number.prototype !== "object") {
+  "object",
-  throw new Test262Error('#1: typeof Number.prototype === "object"');
+  'The value of `typeof Number.prototype` is expected to be "object"'
-}
+);
 
 Number.prototype.toString = Object.prototype.toString;
 
-if (Number.prototype.toString() !== "[object Number]") {
+assert.sameValue(
-  throw new Test262Error('#3: The [[Class]] property of the Number prototype object is set to "Number"');
+  Number.prototype.toString(),
-}
+  "[object Number]",
+  'Number.prototype.toString() must return "[object Number]"'
+);

test/built-ins/Number/prototype/S15.7.3.1_A3.js

@@ -6,10 +6,4 @@ info: Number.prototype value is +0
 es5id: 15.7.3.1_A3
 description: Checking value of Number.prototype property
 ---*/
-
+assert(Number.prototype == 0, 'The value of Number.prototype is expected to be 0');
-//CHECK#1
-if (Number.prototype != 0) {
-  throw new Test262Error('#2: Number.prototype == +0');
-} else if (1 / Number.prototype != Number.POSITIVE_INFINITY) {
-  throw new Test262Error('#2: Number.prototype == +0');
-}

test/built-ins/Number/prototype/S15.7.4_A1.js

@@ -8,21 +8,18 @@ info: |
 es5id: 15.7.4_A1
 description: Checking type and value of Number.prototype property
 ---*/
+assert.sameValue(
+  typeof Number.prototype,
+  "object",
+  'The value of `typeof Number.prototype` is expected to be "object"'
+);
 
-//CHECK#1
+assert(Number.prototype == 0, 'The value of Number.prototype is expected to be 0');
-if (typeof Number.prototype !== "object") {
-  throw new Test262Error('#1: typeof Number.prototype === "object"');
-}
-
-//CHECK#2
-if (Number.prototype != 0) {
-  throw new Test262Error('#2: Number.prototype == +0');
-} else if (1 / Number.prototype != Number.POSITIVE_INFINITY) {
-  throw new Test262Error('#2: Number.prototype == +0');
-}
 
 delete Number.prototype.toString;
 
-if (Number.prototype.toString() !== "[object Number]") {
+assert.sameValue(
-  throw new Test262Error('#3: The [[Class]] property of the Number prototype object is set to "Number"');
+  Number.prototype.toString(),
-}
+  "[object Number]",
+  'Number.prototype.toString() must return "[object Number]"'
+);

test/built-ins/Number/prototype/S15.7.4_A2.js

@@ -8,8 +8,7 @@ info: |
 es5id: 15.7.4_A2
 description: Checking Object.prototype.isPrototypeOf(Number.prototype)
 ---*/
-
+assert(
-//CHECK#1
+  Object.prototype.isPrototypeOf(Number.prototype),
-if (!Object.prototype.isPrototypeOf(Number.prototype)) {
+  'Object.prototype.isPrototypeOf(Number.prototype) must return true'
-  throw new Test262Error('#1: Object prototype object is the prototype of Number prototype object');
+);
-}

test/built-ins/Number/prototype/S15.7.4_A3.1.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property constructor
 es5id: 15.7.4_A3.1
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("constructor"),
-if (Number.prototype.hasOwnProperty("constructor") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property constructor');
+  'Number.prototype.hasOwnProperty("constructor") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.2.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property toString
 es5id: 15.7.4_A3.2
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("toString"),
-if (Number.prototype.hasOwnProperty("toString") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property toString');
+  'Number.prototype.hasOwnProperty("toString") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.3.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property toLocaleString
 es5id: 15.7.4_A3.3
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("toLocaleString"),
-if (Number.prototype.hasOwnProperty("toLocaleString") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property toLocaleString');
+  'Number.prototype.hasOwnProperty("toLocaleString") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.4.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property valueOf
 es5id: 15.7.4_A3.4
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("valueOf"),
-if (Number.prototype.hasOwnProperty("valueOf") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property valueOf');
+  'Number.prototype.hasOwnProperty("valueOf") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.5.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property toFixed
 es5id: 15.7.4_A3.5
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("toFixed"),
-if (Number.prototype.hasOwnProperty("toFixed") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property toFixed');
+  'Number.prototype.hasOwnProperty("toFixed") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.6.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property toExponential
 es5id: 15.7.4_A3.6
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("toExponential"),
-if (Number.prototype.hasOwnProperty("toExponential") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property toExponential');
+  'Number.prototype.hasOwnProperty("toExponential") must return true'
-}
+);

test/built-ins/Number/prototype/S15.7.4_A3.7.js

@@ -6,8 +6,8 @@ info: The Number prototype object has the property toPrecision
 es5id: 15.7.4_A3.7
 description: The test uses hasOwnProperty() method
 ---*/
-
+assert.sameValue(
-//CHECK#1
+  Number.prototype.hasOwnProperty("toPrecision"),
-if (Number.prototype.hasOwnProperty("toPrecision") !== true) {
+  true,
-  throw new Test262Error('#1: The Number prototype object has the property toPrecision');
+  'Number.prototype.hasOwnProperty("toPrecision") must return true'
-}
+);

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A1.1_T01.js

@@ -8,63 +8,24 @@ info: |
 es5id: 15.7.4.5_A1.1_T01
 description: calling on Number prototype object
 ---*/
+assert.sameValue(Number.prototype.toFixed(), "0", 'Number.prototype.toFixed() must return "0"');
+assert.sameValue(Number.prototype.toFixed(0), "0", 'Number.prototype.toFixed(0) must return "0"');
+assert.sameValue(Number.prototype.toFixed(1), "0.0", 'Number.prototype.toFixed(1) must return "0.0"');
+assert.sameValue(Number.prototype.toFixed(1.1), "0.0", 'Number.prototype.toFixed(1.1) must return "0.0"');
+assert.sameValue(Number.prototype.toFixed(0.9), "0", 'Number.prototype.toFixed(0.9) must return "0"');
+assert.sameValue(Number.prototype.toFixed("1"), "0.0", 'Number.prototype.toFixed("1") must return "0.0"');
+assert.sameValue(Number.prototype.toFixed("1.1"), "0.0", 'Number.prototype.toFixed("1.1") must return "0.0"');
+assert.sameValue(Number.prototype.toFixed("0.9"), "0", 'Number.prototype.toFixed("0.9") must return "0"');
+assert.sameValue(Number.prototype.toFixed(Number.NaN), "0", 'Number.prototype.toFixed(Number.NaN) must return "0"');
 
-//CHECK#1
+assert.sameValue(
-if (Number.prototype.toFixed() !== "0") {
+  Number.prototype.toFixed("some string"),
-  throw new Test262Error('#1: Number.prototype.toFixed() === "0"');
+  "0",
-}
+  'Number.prototype.toFixed("some string") must return "0"'
+);
 
-//CHECK#2
-if (Number.prototype.toFixed(0) !== "0") {
-  throw new Test262Error('#2: Number.prototype.toFixed(0) === "0"');
-}
-
-//CHECK#3
-if (Number.prototype.toFixed(1) !== "0.0") {
-  throw new Test262Error('#3: Number.prototype.toFixed(1) === "0.0"');
-}
-
-//CHECK#4
-if (Number.prototype.toFixed(1.1) !== "0.0") {
-  throw new Test262Error('#4: Number.prototype.toFixed(1.1) === "0.0"');
-}
-
-//CHECK#5
-if (Number.prototype.toFixed(0.9) !== "0") {
-  throw new Test262Error('#5: Number.prototype.toFixed(0.9) === "0"');
-}
-
-
-//CHECK#6
-if (Number.prototype.toFixed("1") !== "0.0") {
-  throw new Test262Error('#6: Number.prototype.toFixed("1") === "0.0"');
-}
-
-//CHECK#7
-if (Number.prototype.toFixed("1.1") !== "0.0") {
-  throw new Test262Error('#7: Number.prototype.toFixed("1.1") === "0.0"');
-}
-
-//CHECK#8
-if (Number.prototype.toFixed("0.9") !== "0") {
-  throw new Test262Error('#8: Number.prototype.toFixed("0.9") === "0"');
-}
-
-//CHECK#9
-if (Number.prototype.toFixed(Number.NaN) !== "0") {
-  throw new Test262Error('#9: Number.prototype.toFixed(Number.NaN) === "0"');
-}
-
-//CHECK#10
-if (Number.prototype.toFixed("some string") !== "0") {
-  throw new Test262Error('#9: Number.prototype.toFixed("some string") === "0"');
-}
-
-//CHECK#11
 try {
-  if (Number.prototype.toFixed(-0.1) !== "0") {
+  assert.sameValue(Number.prototype.toFixed(-0.1), "0", 'Number.prototype.toFixed(-0.1) must return "0"');
-    throw new Test262Error('#10: Number.prototype.toFixed(-0.1) === "0"');
-  }
 }
 catch (e) {
   throw new Test262Error('#10: Number.prototype.toFixed(-0.1) should not throw ' + e);

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A1.1_T02.js

@@ -8,62 +8,24 @@ info: |
 es5id: 15.7.4.5_A1.1_T02
 description: calling on Number object
 ---*/
+assert.sameValue((new Number(1)).toFixed(), "1", '(new Number(1)).toFixed() must return "1"');
+assert.sameValue((new Number(1)).toFixed(0), "1", '(new Number(1)).toFixed(0) must return "1"');
+assert.sameValue((new Number(1)).toFixed(1), "1.0", '(new Number(1)).toFixed(1) must return "1.0"');
+assert.sameValue((new Number(1)).toFixed(1.1), "1.0", '(new Number(1)).toFixed(1.1) must return "1.0"');
+assert.sameValue((new Number(1)).toFixed(0.9), "1", '(new Number(1)).toFixed(0.9) must return "1"');
+assert.sameValue((new Number(1)).toFixed("1"), "1.0", '(new Number(1)).toFixed("1") must return "1.0"');
+assert.sameValue((new Number(1)).toFixed("1.1"), "1.0", '(new Number(1)).toFixed("1.1") must return "1.0"');
+assert.sameValue((new Number(1)).toFixed("0.9"), "1", '(new Number(1)).toFixed("0.9") must return "1"');
+assert.sameValue((new Number(1)).toFixed(Number.NaN), "1", '(new Number(1)).toFixed(Number.NaN) must return "1"');
 
-//CHECK#1
+assert.sameValue(
-if ((new Number(1)).toFixed() !== "1") {
+  (new Number(1)).toFixed("some string"),
-  throw new Test262Error('#1: (new Number(1)).prototype.toFixed() === "1"');
+  "1",
-}
+  '(new Number(1)).toFixed("some string") must return "1"'
+);
 
-//CHECK#2
-if ((new Number(1)).toFixed(0) !== "1") {
-  throw new Test262Error('#2: (new Number(1)).prototype.toFixed(0) === "1"');
-}
-
-//CHECK#3
-if ((new Number(1)).toFixed(1) !== "1.0") {
-  throw new Test262Error('#3: (new Number(1)).prototype.toFixed(1) === "1.0"');
-}
-
-//CHECK#4
-if ((new Number(1)).toFixed(1.1) !== "1.0") {
-  throw new Test262Error('#4: (new Number(1)).toFixed(1.1) === "1.0"');
-}
-
-//CHECK#5
-if ((new Number(1)).toFixed(0.9) !== "1") {
-  throw new Test262Error('#5: (new Number(1)).toFixed(0.9) === "1"');
-}
-
-//CHECK#6
-if ((new Number(1)).toFixed("1") !== "1.0") {
-  throw new Test262Error('#6: (new Number(1)).toFixed("1") === "1.0"');
-}
-
-//CHECK#7
-if ((new Number(1)).toFixed("1.1") !== "1.0") {
-  throw new Test262Error('#7: (new Number(1)).toFixed("1.1") === "1.0"');
-}
-
-//CHECK#8
-if ((new Number(1)).toFixed("0.9") !== "1") {
-  throw new Test262Error('#8: (new Number(1)).toFixed("0.9") === "1"');
-}
-
-//CHECK#9
-if ((new Number(1)).toFixed(Number.NaN) !== "1") {
-  throw new Test262Error('#9: (new Number(1)).toFixed(Number.NaN) === "1"');
-}
-
-//CHECK#10
-if ((new Number(1)).toFixed("some string") !== "1") {
-  throw new Test262Error('#9: (new Number(1)).toFixed("some string") === "1"');
-}
-
-//CHECK#10
 try {
-  if ((new Number(1)).toFixed(-0.1) !== "1") {
+  assert.sameValue((new Number(1)).toFixed(-0.1), "1", '(new Number(1)).toFixed(-0.1) must return "1"');
-    throw new Test262Error('#10: (new Number(1)).toFixed(-0.1) === "1"');
-  }
 }
 catch (e) {
   throw new Test262Error('#10: (new Number(1)).toFixed(-0.1) should not throw ' + e);

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A1.3_T01.js

@@ -6,64 +6,31 @@ info: "Step 4: If this number value is NaN, return the string \"NaN\""
 es5id: 15.7.4.5_A1.3_T01
 description: NaN is computed by new Number("string")
 ---*/
+assert.sameValue((new Number("a")).toFixed(), "NaN", '(new Number("a")).toFixed() must return "NaN"');
+assert.sameValue((new Number("a")).toFixed(0), "NaN", '(new Number("a")).toFixed(0) must return "NaN"');
+assert.sameValue((new Number("a")).toFixed(1), "NaN", '(new Number("a")).toFixed(1) must return "NaN"');
+assert.sameValue((new Number("a")).toFixed(1.1), "NaN", '(new Number("a")).toFixed(1.1) must return "NaN"');
+assert.sameValue((new Number("a")).toFixed(0.9), "NaN", '(new Number("a")).toFixed(0.9) must return "NaN"');
+assert.sameValue((new Number("a")).toFixed("1"), "NaN", '(new Number("a")).toFixed("1") must return "NaN"');
+assert.sameValue((new Number("a")).toFixed("1.1"), "NaN", '(new Number("a")).toFixed("1.1") must return "NaN"');
+assert.sameValue((new Number("a")).toFixed("0.9"), "NaN", '(new Number("a")).toFixed("0.9") must return "NaN"');
 
-//CHECK#1
+assert.sameValue(
-if ((new Number("a")).toFixed() !== "NaN") {
+  (new Number("a")).toFixed(Number.NaN),
-  throw new Test262Error('#1: (new Number("a")).prototype.toFixed() === "NaN"');
+  "NaN",
-}
+  '(new Number("a")).toFixed(Number.NaN) must return "NaN"'
+);
 
-//CHECK#2
+assert.sameValue(
-if ((new Number("a")).toFixed(0) !== "NaN") {
+  (new Number("a")).toFixed("some string"),
-  throw new Test262Error('#2: (new Number("a")).prototype.toFixed(0) === "NaN"');
+  "NaN",
-}
+  '(new Number("a")).toFixed("some string") must return "NaN"'
+);
 
-//CHECK#3
-if ((new Number("a")).toFixed(1) !== "NaN") {
-  throw new Test262Error('#3: (new Number("a")).prototype.toFixed(1) === "NaN"');
-}
-
-//CHECK#4
-if ((new Number("a")).toFixed(1.1) !== "NaN") {
-  throw new Test262Error('#4: (new Number("a")).toFixed(1.1) === "NaN"');
-}
-
-//CHECK#5
-if ((new Number("a")).toFixed(0.9) !== "NaN") {
-  throw new Test262Error('#5: (new Number("a")).toFixed(0.9) === "NaN"');
-}
-
-//CHECK#6
-if ((new Number("a")).toFixed("1") !== "NaN") {
-  throw new Test262Error('#6: (new Number("a")).toFixed("1") === "NaN"');
-}
-
-//CHECK#7
-if ((new Number("a")).toFixed("1.1") !== "NaN") {
-  throw new Test262Error('#7: (new Number("a")).toFixed("1.1") === "NaN"');
-}
-
-//CHECK#8
-if ((new Number("a")).toFixed("0.9") !== "NaN") {
-  throw new Test262Error('#8: (new Number("a")).toFixed("0.9") === "NaN"');
-}
-
-//CHECK#9
-if ((new Number("a")).toFixed(Number.NaN) !== "NaN") {
-  throw new Test262Error('#9: (new Number("a")).toFixed(Number.NaN) === "NaN"');
-}
-
-//CHECK#10
-if ((new Number("a")).toFixed("some string") !== "NaN") {
-  throw new Test262Error('#9: (new Number("a")).toFixed("some string") === "NaN"');
-}
-
-//CHECK#10
 try {
   s = (new Number("a")).toFixed(Number.POSITIVE_INFINITY);
   throw new Test262Error('#10: (new Number("a")).toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not return NaN');
 }
 catch (e) {
-  if (!(e instanceof RangeError)) {
+  assert(e instanceof RangeError, 'The result of evaluating (e instanceof RangeError) is expected to be true');
-    throw new Test262Error('#10: (new Number("a")).toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not ' + e);
-  }
 }

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A1.3_T02.js

@@ -6,64 +6,21 @@ info: "Step 4: If this number value is NaN, return the string \"NaN\""
 es5id: 15.7.4.5_A1.3_T02
 description: direct usage of NaN
 ---*/
+assert.sameValue(Number.NaN.toFixed(), "NaN", 'Number.NaN.toFixed() must return "NaN"');
+assert.sameValue(Number.NaN.toFixed(0), "NaN", 'Number.NaN.toFixed(0) must return "NaN"');
+assert.sameValue(Number.NaN.toFixed(1), "NaN", 'Number.NaN.toFixed(1) must return "NaN"');
+assert.sameValue(Number.NaN.toFixed(1.1), "NaN", 'Number.NaN.toFixed(1.1) must return "NaN"');
+assert.sameValue(Number.NaN.toFixed(0.9), "NaN", 'Number.NaN.toFixed(0.9) must return "NaN"');
+assert.sameValue(Number.NaN.toFixed("1"), "NaN", 'Number.NaN.toFixed("1") must return "NaN"');
+assert.sameValue(Number.NaN.toFixed("1.1"), "NaN", 'Number.NaN.toFixed("1.1") must return "NaN"');
+assert.sameValue(Number.NaN.toFixed("0.9"), "NaN", 'Number.NaN.toFixed("0.9") must return "NaN"');
+assert.sameValue(Number.NaN.toFixed(Number.NaN), "NaN", 'Number.NaN.toFixed(Number.NaN) must return "NaN"');
+assert.sameValue(Number.NaN.toFixed("some string"), "NaN", 'Number.NaN.toFixed("some string") must return "NaN"');
 
-//CHECK#1
-if (Number.NaN.toFixed() !== "NaN") {
-  throw new Test262Error('#1: Number.NaN.prototype.toFixed() === "NaN"');
-}
-
-//CHECK#2
-if (Number.NaN.toFixed(0) !== "NaN") {
-  throw new Test262Error('#2: Number.NaN.prototype.toFixed(0) === "NaN"');
-}
-
-//CHECK#3
-if (Number.NaN.toFixed(1) !== "NaN") {
-  throw new Test262Error('#3: Number.NaN.prototype.toFixed(1) === "NaN"');
-}
-
-//CHECK#4
-if (Number.NaN.toFixed(1.1) !== "NaN") {
-  throw new Test262Error('#4: Number.NaN.toFixed(1.1) === "NaN"');
-}
-
-//CHECK#5
-if (Number.NaN.toFixed(0.9) !== "NaN") {
-  throw new Test262Error('#5: Number.NaN.toFixed(0.9) === "NaN"');
-}
-
-//CHECK#6
-if (Number.NaN.toFixed("1") !== "NaN") {
-  throw new Test262Error('#6: Number.NaN.toFixed("1") === "NaN"');
-}
-
-//CHECK#7
-if (Number.NaN.toFixed("1.1") !== "NaN") {
-  throw new Test262Error('#7: Number.NaN.toFixed("1.1") === "NaN"');
-}
-
-//CHECK#8
-if (Number.NaN.toFixed("0.9") !== "NaN") {
-  throw new Test262Error('#8: Number.NaN.toFixed("0.9") === "NaN"');
-}
-
-//CHECK#9
-if (Number.NaN.toFixed(Number.NaN) !== "NaN") {
-  throw new Test262Error('#9: Number.NaN.toFixed(Number.NaN) === "NaN"');
-}
-
-//CHECK#10
-if (Number.NaN.toFixed("some string") !== "NaN") {
-  throw new Test262Error('#9: Number.NaN.toFixed("some string") === "NaN"');
-}
-
-//CHECK#10
 try {
   s = Number.NaN.toFixed(Number.POSITIVE_INFINITY);
   throw new Test262Error('#10: Number.NaN.toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not return NaN');
 }
 catch (e) {
-  if (!(e instanceof RangeError)) {
+  assert(e instanceof RangeError, 'The result of evaluating (e instanceof RangeError) is expected to be true');
-    throw new Test262Error('#10: Number.NaN.toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not ' + e);
-  }
 }

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A1.4_T01.js

@@ -6,64 +6,70 @@ info: "Step 9: If x >= 10^21, let m = ToString(x)"
 es5id: 15.7.4.5_A1.4_T01
 description: x is 10^21
 ---*/
+assert.sameValue(
+  (new Number(1e21)).toFixed(),
+  String(1e21),
+  '(new Number(1e21)).toFixed() must return the same value returned by String(1e21)'
+);
 
-//CHECK#1
+assert.sameValue(
-if ((new Number(1e21)).toFixed() !== String(1e21)) {
+  (new Number(1e21)).toFixed(0),
-  throw new Test262Error('#1: (new Number(1e21)).prototype.toFixed() === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed(0) must return the same value returned by String(1e21)'
+);
 
-//CHECK#2
+assert.sameValue(
-if ((new Number(1e21)).toFixed(0) !== String(1e21)) {
+  (new Number(1e21)).toFixed(1),
-  throw new Test262Error('#2: (new Number(1e21)).prototype.toFixed(0) === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed(1) must return the same value returned by String(1e21)'
+);
 
-//CHECK#3
+assert.sameValue(
-if ((new Number(1e21)).toFixed(1) !== String(1e21)) {
+  (new Number(1e21)).toFixed(1.1),
-  throw new Test262Error('#3: (new Number(1e21)).prototype.toFixed(1) === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed(1.1) must return the same value returned by String(1e21)'
+);
 
-//CHECK#4
+assert.sameValue(
-if ((new Number(1e21)).toFixed(1.1) !== String(1e21)) {
+  (new Number(1e21)).toFixed(0.9),
-  throw new Test262Error('#4: (new Number(1e21)).toFixed(1.1) === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed(0.9) must return the same value returned by String(1e21)'
+);
 
-//CHECK#5
+assert.sameValue(
-if ((new Number(1e21)).toFixed(0.9) !== String(1e21)) {
+  (new Number(1e21)).toFixed("1"),
-  throw new Test262Error('#5: (new Number(1e21)).toFixed(0.9) === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed("1") must return the same value returned by String(1e21)'
+);
 
-//CHECK#6
+assert.sameValue(
-if ((new Number(1e21)).toFixed("1") !== String(1e21)) {
+  (new Number(1e21)).toFixed("1.1"),
-  throw new Test262Error('#6: (new Number(1e21)).toFixed("1") === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed("1.1") must return the same value returned by String(1e21)'
+);
 
-//CHECK#7
+assert.sameValue(
-if ((new Number(1e21)).toFixed("1.1") !== String(1e21)) {
+  (new Number(1e21)).toFixed("0.9"),
-  throw new Test262Error('#7: (new Number(1e21)).toFixed("1.1") === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed("0.9") must return the same value returned by String(1e21)'
+);
 
-//CHECK#8
+assert.sameValue(
-if ((new Number(1e21)).toFixed("0.9") !== String(1e21)) {
+  (new Number(1e21)).toFixed(Number.NaN),
-  throw new Test262Error('#8: (new Number(1e21)).toFixed("0.9") === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed(Number.NaN) must return the same value returned by String(1e21)'
+);
 
-//CHECK#9
+assert.sameValue(
-if ((new Number(1e21)).toFixed(Number.NaN) !== String(1e21)) {
+  (new Number(1e21)).toFixed("some string"),
-  throw new Test262Error('#9: (new Number(1e21)).toFixed(Number.NaN) === String(1e21)');
+  String(1e21),
-}
+  '(new Number(1e21)).toFixed("some string") must return the same value returned by String(1e21)'
+);
 
-//CHECK#10
-if ((new Number(1e21)).toFixed("some string") !== String(1e21)) {
-  throw new Test262Error('#9: (new Number(1e21)).toFixed("some string") === String(1e21)');
-}
-
-//CHECK#10
 try {
   s = (new Number(1e21)).toFixed(Number.POSITIVE_INFINITY);
   throw new Test262Error('#10: (new Number(1e21)).toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not return NaN');
 }
 catch (e) {
-  if (!(e instanceof RangeError)) {
+  assert(e instanceof RangeError, 'The result of evaluating (e instanceof RangeError) is expected to be true');
-    throw new Test262Error('#10: (new Number(1e21)).toFixed(Number.POSITIVE_INFINITY) should throw RangeError, not ' + e);
-  }
 }

test/built-ins/Number/prototype/toFixed/S15.7.4.5_A2_T01.js

@@ -6,13 +6,14 @@ info: The length property of the toFixed method is 1
 es5id: 15.7.4.5_A2_T01
 description: Checking Number prototype itself
 ---*/
+assert.sameValue(
+  Number.prototype.toFixed.hasOwnProperty("length"),
+  true,
+  'Number.prototype.toFixed.hasOwnProperty("length") must return true'
+);
 
-//CHECK#1
+assert.sameValue(
-if (Number.prototype.toFixed.hasOwnProperty("length") !== true) {
+  Number.prototype.toFixed.length,
-  throw new Test262Error('#1: The length property of the toFixed method is 1');
+  1,
-}
+  'The value of Number.prototype.toFixed.length is expected to be 1'
-
+);
-//CHECK#2
-if (Number.prototype.toFixed.length !== 1) {
-  throw new Test262Error('#2: The length property of the toFixed method is 1');
-}

test/built-ins/Number/prototype/toString/S15.7.4.2_A1_T01.js

@@ -9,43 +9,21 @@ info: |
 es5id: 15.7.4.2_A1_T01
 description: undefined radix
 ---*/
+assert.sameValue(Number.prototype.toString(), "0", 'Number.prototype.toString() must return "0"');
+assert.sameValue((new Number()).toString(), "0", '(new Number()).toString() must return "0"');
+assert.sameValue((new Number(0)).toString(), "0", '(new Number(0)).toString() must return "0"');
+assert.sameValue((new Number(-1)).toString(), "-1", '(new Number(-1)).toString() must return "-1"');
+assert.sameValue((new Number(1)).toString(), "1", '(new Number(1)).toString() must return "1"');
+assert.sameValue((new Number(Number.NaN)).toString(), "NaN", '(new Number(Number.NaN)).toString() must return "NaN"');
 
-//CHECK#1
+assert.sameValue(
-if (Number.prototype.toString() !== "0") {
+  (new Number(Number.POSITIVE_INFINITY)).toString(),
-  throw new Test262Error('#1: Number.prototype.toString() === "0"');
+  "Infinity",
-}
+  '(new Number(Number.POSITIVE_INFINITY)).toString() must return "Infinity"'
+);
 
-//CHECK#2
+assert.sameValue(
-if ((new Number()).toString() !== "0") {
+  (new Number(Number.NEGATIVE_INFINITY)).toString(),
-  throw new Test262Error('#2: (new Number()).toString() === "0"');
+  "-Infinity",
-}
+  '(new Number(Number.NEGATIVE_INFINITY)).toString() must return "-Infinity"'
-
+);
-//CHECK#3
-if ((new Number(0)).toString() !== "0") {
-  throw new Test262Error('#3: (new Number(0)).toString() === "0"');
-}
-
-//CHECK#4
-if ((new Number(-1)).toString() !== "-1") {
-  throw new Test262Error('#4: (new Number(-1)).toString() === "-1"');
-}
-
-//CHECK#5
-if ((new Number(1)).toString() !== "1") {
-  throw new Test262Error('#5: (new Number(1)).toString() === "1"');
-}
-
-//CHECK#6
-if ((new Number(Number.NaN)).toString() !== "NaN") {
-  throw new Test262Error('#6: (new Number(Number.NaN)).toString() === "NaN"');
-}
-
-//CHECK#7
-if ((new Number(Number.POSITIVE_INFINITY)).toString() !== "Infinity") {
-  throw new Test262Error('#7: (new Number(Number.POSITIVE_INFINITY)).toString() === "Infinity"');
-}
-
-//CHECK#8
-if ((new Number(Number.NEGATIVE_INFINITY)).toString() !== "-Infinity") {
-  throw new Test262Error('#8: (new Number(Number.NEGATIVE_INFINITY)).toString() === "-Infinity"');
-}

test/built-ins/Number/prototype/toString/S15.7.4.2_A1_T02.js

@@ -9,43 +9,26 @@ info: |
 es5id: 15.7.4.2_A1_T02
 description: radix is 10
 ---*/
+assert.sameValue(Number.prototype.toString(10), "0", 'Number.prototype.toString(10) must return "0"');
+assert.sameValue((new Number()).toString(10), "0", '(new Number()).toString(10) must return "0"');
+assert.sameValue((new Number(0)).toString(10), "0", '(new Number(0)).toString(10) must return "0"');
+assert.sameValue((new Number(-1)).toString(10), "-1", '(new Number(-1)).toString(10) must return "-1"');
+assert.sameValue((new Number(1)).toString(10), "1", '(new Number(1)).toString(10) must return "1"');
 
-//CHECK#1
+assert.sameValue(
-if (Number.prototype.toString(10) !== "0") {
+  (new Number(Number.NaN)).toString(10),
-  throw new Test262Error('#1: Number.prototype.toString(10) === "0"');
+  "NaN",
-}
+  '(new Number(Number.NaN)).toString(10) must return "NaN"'
+);
 
-//CHECK#2
+assert.sameValue(
-if ((new Number()).toString(10) !== "0") {
+  (new Number(Number.POSITIVE_INFINITY)).toString(10),
-  throw new Test262Error('#2: (new Number()).toString(10) === "0"');
+  "Infinity",
-}
+  '(new Number(Number.POSITIVE_INFINITY)).toString(10) must return "Infinity"'
+);
 
-//CHECK#3
+assert.sameValue(
-if ((new Number(0)).toString(10) !== "0") {
+  (new Number(Number.NEGATIVE_INFINITY)).toString(10),
-  throw new Test262Error('#3: (new Number(0)).toString(10) === "0"');
+  "-Infinity",
-}
+  '(new Number(Number.NEGATIVE_INFINITY)).toString(10) must return "-Infinity"'
-
+);
-//CHECK#4
-if ((new Number(-1)).toString(10) !== "-1") {
-  throw new Test262Error('#4: (new Number(-1)).toString(10) === "-1"');
-}
-
-//CHECK#5
-if ((new Number(1)).toString(10) !== "1") {
-  throw new Test262Error('#5: (new Number(1)).toString(10) === "1"');
-}
-
-//CHECK#6
-if ((new Number(Number.NaN)).toString(10) !== "NaN") {
-  throw new Test262Error('#6: (new Number(Number.NaN)).toString(10) === "NaN"');
-}
-
-//CHECK#7
-if ((new Number(Number.POSITIVE_INFINITY)).toString(10) !== "Infinity") {
-  throw new Test262Error('#7: (new Number(Number.POSITIVE_INFINITY)).toString(10) === "Infinity"');
-}
-
-//CHECK#8
-if ((new Number(Number.NEGATIVE_INFINITY)).toString(10) !== "-Infinity") {
-  throw new Test262Error('#8: (new Number(Number.NEGATIVE_INFINITY)).toString(10) === "-Infinity"');
-}

test/built-ins/Number/prototype/toString/S15.7.4.2_A1_T03.js

@@ -9,43 +9,26 @@ info: |
 es5id: 15.7.4.2_A1_T03
 description: radix is undefined value
 ---*/
+assert.sameValue(Number.prototype.toString(undefined), "0", 'Number.prototype.toString(undefined) must return "0"');
+assert.sameValue((new Number()).toString(undefined), "0", '(new Number()).toString(undefined) must return "0"');
+assert.sameValue((new Number(0)).toString(undefined), "0", '(new Number(0)).toString(undefined) must return "0"');
+assert.sameValue((new Number(-1)).toString(undefined), "-1", '(new Number(-1)).toString(undefined) must return "-1"');
+assert.sameValue((new Number(1)).toString(undefined), "1", '(new Number(1)).toString(undefined) must return "1"');
 
-//CHECK#1
+assert.sameValue(
-if (Number.prototype.toString(undefined) !== "0") {
+  (new Number(Number.NaN)).toString(undefined),
-  throw new Test262Error('#1: Number.prototype.toString(undefined) === "0"');
+  "NaN",
-}
+  '(new Number(Number.NaN)).toString(undefined) must return "NaN"'
+);
 
-//CHECK#2
+assert.sameValue(
-if ((new Number()).toString(undefined) !== "0") {
+  (new Number(Number.POSITIVE_INFINITY)).toString(undefined),
-  throw new Test262Error('#2: (new Number()).toString(undefined) === "0"');
+  "Infinity",
-}
+  '(new Number(Number.POSITIVE_INFINITY)).toString(undefined) must return "Infinity"'
+);
 
-//CHECK#3
+assert.sameValue(
-if ((new Number(0)).toString(undefined) !== "0") {
+  (new Number(Number.NEGATIVE_INFINITY)).toString(undefined),
-  throw new Test262Error('#3: (new Number(0)).toString(undefined) === "0"');
+  "-Infinity",
-}
+  '(new Number(Number.NEGATIVE_INFINITY)).toString(undefined) must return "-Infinity"'
-
+);
-//CHECK#4
-if ((new Number(-1)).toString(undefined) !== "-1") {
-  throw new Test262Error('#4: (new Number(-1)).toString(undefined) === "-1"');
-}
-
-//CHECK#5
-if ((new Number(1)).toString(undefined) !== "1") {
-  throw new Test262Error('#5: (new Number(1)).toString(undefined) === "1"');
-}
-
-//CHECK#6
-if ((new Number(Number.NaN)).toString(undefined) !== "NaN") {
-  throw new Test262Error('#6: (new Number(Number.NaN)).toString(undefined) === "NaN"');
-}
-
-//CHECK#7
-if ((new Number(Number.POSITIVE_INFINITY)).toString(undefined) !== "Infinity") {
-  throw new Test262Error('#7: (new Number(Number.POSITIVE_INFINITY)).toString(undefined) === "Infinity"');
-}
-
-//CHECK#8
-if ((new Number(Number.NEGATIVE_INFINITY)).toString(undefined) !== "-Infinity") {
-  throw new Test262Error('#8: (new Number(Number.NEGATIVE_INFINITY)).toString(undefined) === "-Infinity"');
-}