Merge pull request #272 from anba/no-strict-tests

Enable strict mode for more built-in tests

harness/propertyHelper.js

@@ -41,8 +41,7 @@ function isWritable(obj, name, verifyProp, value) {
         }
     }
 
-    writeSucceeded = (verifyProp && isEqualTo(obj, verifyProp, newValue)) ||
+    writeSucceeded = isEqualTo(obj, verifyProp || name, newValue);
-        isEqualTo(obj, name, newValue);
 
     // Revert the change only if it was successful (in other cases, reverting
     // is unnecessary and may trigger exceptions for certain property

test/built-ins/Array/S15.4.3_A2.3.js

@@ -5,12 +5,12 @@
 info: The length property of Array has the attribute ReadOnly
 es5id: 15.4.3_A2.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.length;
-Array.length = Infinity;
+verifyNotWritable(Array, "length", null, Infinity);
 if (Array.length !== x) {
   $ERROR('#1: x = Array.length; Array.length = Infinity; Array.length === x. Actual: ' + (Array.length));
 }

test/built-ins/Array/prototype/S15.4.3.1_A3.js

@@ -5,8 +5,7 @@
 info: The Array.prototype property has the attribute DontDelete
 es5id: 15.4.3.1_A3
 description: Checking if deleting the Array.prototype property fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
 //CHECK#1
@@ -14,14 +13,24 @@ if (Array.hasOwnProperty('prototype') !== true) {
 	$FAIL('#1: Array.hasOwnProperty(\'prototype\') === true. Actual: ' + (Array.hasOwnProperty('prototype')));
 }
 
-delete Array.prototype;
+verifyNotConfigurable(Array, "prototype");
 
 //CHECK#2
-if (Array.hasOwnProperty('prototype') !== true) {
+try {
-	$ERROR('#2: delete Array.prototype; Array.hasOwnProperty(\'prototype\') === true. Actual: ' + (Array.hasOwnProperty('prototype')));
+  if((delete Array.prototype) !== false){
+    $ERROR('#2: Array.prototype has the attribute DontDelete');
+  }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
 }
 
 //CHECK#3
-if (Array.prototype === undefined) {
+if (Array.hasOwnProperty('prototype') !== true) {
-  $ERROR('#3: delete Array.prototype; Array.prototype !== undefined');
+	$ERROR('#3: delete Array.prototype; Array.hasOwnProperty(\'prototype\') === true. Actual: ' + (Array.hasOwnProperty('prototype')));
+}
+
+//CHECK#4
+if (Array.prototype === undefined) {
+  $ERROR('#4: delete Array.prototype; Array.prototype !== undefined');
 }

test/built-ins/Array/prototype/S15.4.3.1_A4.js

@@ -5,12 +5,12 @@
 info: The Array.prototype property has the attribute ReadOnly
 es5id: 15.4.3.1_A4
 description: Checking if varying the Array.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype;
-Array.prototype = 1;
+verifyNotWritable(Array, "prototype", null, 1);
 if (Array.prototype !== x) {
 	$ERROR('#1: x = Array.prototype; Array.prototype = 1; Array.prototype === x. Actual: ' + (Array.prototype));
 }

test/built-ins/Array/prototype/concat/S15.4.4.4_A4.2.js

@@ -5,7 +5,6 @@
 info: The length property of concat does not have the attribute DontDelete
 es5id: 15.4.4.4_A4.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/concat/S15.4.4.4_A4.3.js

@@ -5,12 +5,12 @@
 info: The length property of concat has the attribute ReadOnly
 es5id: 15.4.4.4_A4.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.concat.length;
-Array.prototype.concat.length = Infinity;
+verifyNotWritable(Array.prototype.concat, "length", null, Infinity);
 if (Array.prototype.concat.length !== x) {
   $ERROR('#1: x = Array.prototype.concat.length; Array.prototype.concat.length = Infinity; Array.prototype.concat.length === x. Actual: ' + (Array.prototype.concat.length));
 }

test/built-ins/Array/prototype/join/S15.4.4.5_A6.2.js

@@ -5,7 +5,6 @@
 info: The length property of join does not have the attribute DontDelete
 es5id: 15.4.4.5_A6.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/join/S15.4.4.5_A6.3.js

@@ -5,12 +5,12 @@
 info: The length property of join has the attribute ReadOnly
 es5id: 15.4.4.5_A6.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.join.length;
-Array.prototype.join.length = Infinity;
+verifyNotWritable(Array.prototype.join, "length", null, Infinity);
 if (Array.prototype.join.length !== x) {
   $ERROR('#1: x = Array.prototype.join.length; Array.prototype.join.length = Infinity; Array.prototype.join.length === x. Actual: ' + (Array.prototype.join.length));
 }

test/built-ins/Array/prototype/pop/S15.4.4.6_A5.2.js

@@ -5,7 +5,6 @@
 info: The length property of pop does not have the attribute DontDelete
 es5id: 15.4.4.6_A5.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/pop/S15.4.4.6_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of pop has the attribute ReadOnly
 es5id: 15.4.4.6_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.pop.length;
-Array.prototype.pop.length = Infinity;
+verifyNotWritable(Array.prototype.pop, "length", null, Infinity);
 if (Array.prototype.pop.length !== x) {
   $ERROR('#1: x = Array.prototype.pop.length; Array.prototype.pop.length = Infinity; Array.prototype.pop.length === x. Actual: ' + (Array.prototype.pop.length));
 }

test/built-ins/Array/prototype/push/S15.4.4.7_A6.2.js

@@ -5,7 +5,6 @@
 info: The length property of push does not have the attribute DontDelete
 es5id: 15.4.4.7_A6.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/push/S15.4.4.7_A6.3.js

@@ -5,12 +5,12 @@
 info: The length property of push has the attribute ReadOnly
 es5id: 15.4.4.7_A6.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.push.length;
-Array.prototype.push.length = Infinity;
+verifyNotWritable(Array.prototype.push, "length", null, Infinity);
 if (Array.prototype.push.length !== x) {
   $ERROR('#1: x = Array.prototype.push.length; Array.prototype.push.length = Infinity; Array.prototype.push.length === x. Actual: ' + (Array.prototype.push.length));
 }

test/built-ins/Array/prototype/reverse/S15.4.4.8_A5.2.js

@@ -5,7 +5,6 @@
 info: The length property of reverse does not have the attribute DontDelete
 es5id: 15.4.4.8_A5.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/reverse/S15.4.4.8_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of reverse has the attribute ReadOnly
 es5id: 15.4.4.8_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.reverse.length;
-Array.prototype.reverse.length = Infinity;
+verifyNotWritable(Array.prototype.reverse, "length", null, Infinity);
 if (Array.prototype.reverse.length !== x) {
   $ERROR('#1: x = Array.prototype.reverse.length; Array.prototype.reverse.length = Infinity; Array.prototype.reverse.length === x. Actual: ' + (Array.prototype.reverse.length));
 }

test/built-ins/Array/prototype/shift/S15.4.4.9_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of shift has the attribute ReadOnly
 es5id: 15.4.4.9_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.shift.length;
-Array.prototype.shift.length = Infinity;
+verifyNotWritable(Array.prototype.shift, "length", null, Infinity);
 if (Array.prototype.shift.length !== x) {
   $ERROR('#1: x = Array.prototype.shift.length; Array.prototype.shift.length = Infinity; Array.prototype.shift.length === x. Actual: ' + (Array.prototype.shift.length));
 }

test/built-ins/Array/prototype/slice/S15.4.4.10_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of slice has the attribute ReadOnly
 es5id: 15.4.4.10_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.slice.length;
-Array.prototype.slice.length = Infinity;
+verifyNotWritable(Array.prototype.slice, "length", null, Infinity);
 if (Array.prototype.slice.length !== x) {
   $ERROR('#1: x = Array.prototype.slice.length; Array.prototype.slice.length = Infinity; Array.prototypeslice.length === x. Actual: ' + (Array.prototypeslice.length));
 }

test/built-ins/Array/prototype/sort/S15.4.4.11_A7.2.js

@@ -5,7 +5,6 @@
 info: The length property of sort does not have the attribute DontDelete
 es5id: 15.4.4.11_A7.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/sort/S15.4.4.11_A7.3.js

@@ -5,12 +5,12 @@
 info: The length property of sort has the attribute ReadOnly
 es5id: 15.4.4.11_A7.3
 description: Checking if varying the length fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.sort.length;
-Array.prototype.sort.length = Infinity;
+verifyNotWritable(Array.prototype.sort, "length", null, Infinity);
 if (Array.prototype.sort.length !== x) {
   $ERROR('#1: x = Array.prototype.sort.length; Array.prototype.sort.length = Infinity; Array.prototype.sort.length === x. Actual: ' + (Array.prototype.sort.length));
 }

test/built-ins/Array/prototype/splice/S15.4.4.12_A5.2.js

@@ -5,7 +5,6 @@
 info: The length property of splice does not have the attribute DontDelete
 es5id: 15.4.4.12_A5.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/splice/S15.4.4.12_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of splice has the attribute ReadOnly
 es5id: 15.4.4.12_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.splice.length;
-Array.prototype.splice.length = Infinity;
+verifyNotWritable(Array.prototype.splice, "length", null, Infinity);
 if (Array.prototype.splice.length !== x) {
   $ERROR('#1: x = Array.prototype.splice.length; Array.prototype.splice.length = Infinity; Array.prototype.splice.length === x. Actual: ' + (Array.prototype.splice.length));
 }

test/built-ins/Array/prototype/toLocaleString/S15.4.4.3_A4.3.js

@@ -5,12 +5,12 @@
 info: The length property of toLocaleString has the attribute ReadOnly
 es5id: 15.4.4.3_A4.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.toLocaleString.length;
-Array.prototype.toLocaleString.length = Infinity;
+verifyNotWritable(Array.prototype.toLocaleString, "length", null, Infinity);
 if (Array.prototype.toLocaleString.length !== x) {
   $ERROR('#1: x = Array.prototype.toLocaleString.length; Array.prototype.toLocaleString.length = Infinity; Array.prototype.toLocaleString.length === x. Actual: ' + (Array.prototype.toLocaleString.length));
 }

test/built-ins/Array/prototype/toString/S15.4.4.2_A4.2.js

@@ -5,7 +5,6 @@
 info: The length property of toString does not have the attribute DontDelete
 es5id: 15.4.4.2_A4.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/toString/S15.4.4.2_A4.3.js

@@ -5,12 +5,12 @@
 info: The length property of toString has the attribute ReadOnly
 es5id: 15.4.4.2_A4.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.toString.length;
-Array.prototype.toString.length = Infinity;
+verifyNotWritable(Array.prototype.toString, "length", null, Infinity);
 if (Array.prototype.toString.length !== x) {
   $ERROR('#1: x = Array.prototype.toString.length; Array.prototype.toString.length = Infinity; Array.prototype.toString.length === x. Actual: ' + (Array.prototype.toString.length));
 }

test/built-ins/Array/prototype/unshift/S15.4.4.13_A5.2.js

@@ -5,7 +5,6 @@
 info: The length property of unshift does not have the attribute DontDelete
 es5id: 15.4.4.13_A5.2
 description: Checking use hasOwnProperty, delete
-flags: [noStrict]
 includes: [$FAIL.js]
 ---*/
 

test/built-ins/Array/prototype/unshift/S15.4.4.13_A5.3.js

@@ -5,12 +5,12 @@
 info: The length property of unshift has the attribute ReadOnly
 es5id: 15.4.4.13_A5.3
 description: Checking if varying the length property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //CHECK#1
 var x = Array.prototype.unshift.length;
-Array.prototype.unshift.length = Infinity;
+verifyNotWritable(Array.prototype.unshift, "length", null, Infinity);
 if (Array.prototype.unshift.length !== x) {
   $ERROR('#1: x = Array.prototype.unshift.length; Array.prototype.unshift.length = Infinity; Array.prototype.unshift.length === x. Actual: ' + (Array.prototype.unshift.length));
 }

test/built-ins/Boolean/prototype/S15.6.3.1_A2.js

@@ -5,12 +5,12 @@
 info: Boolean.prototype has the attribute ReadOnly
 es5id: 15.6.3.1_A2
 description: Checking if varying the Boolean.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
-x = Boolean.prototype;
+var x = Boolean.prototype;
-Boolean.prototype = 1;
+verifyNotWritable(Boolean, "prototype", null, 1);
 if (Boolean.prototype !== x) {
   $ERROR('#1: Boolean.prototype has the attribute ReadOnly');
 }

test/built-ins/Boolean/prototype/S15.6.3.1_A3.js

@@ -5,10 +5,17 @@
 info: Boolean.prototype has the attribute DontDelete
 es5id: 15.6.3.1_A3
 description: Checking if deleting the Boolean.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
+verifyNotConfigurable(Boolean, "prototype");
+
+try {
   if (delete Boolean.prototype !== false) {
     $ERROR('#1: Boolean.prototype has the attribute DontDelete');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Date/UTC/S15.9.4.3_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     attributes
 es5id: 15.9.4.3_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.UTC.length;
+var x = Date.UTC.length;
-Date.UTC.length = 1;
+verifyNotWritable(Date.UTC, "length", null, 1);
 if (Date.UTC.length !== x) {
   $ERROR('#1: The Date.UTC.length has the attribute ReadOnly');
 }

test/built-ins/Date/parse/S15.9.4.2_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     attributes
 es5id: 15.9.4.2_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.parse.length;
+var x = Date.parse.length;
-Date.parse.length = 1;
+verifyNotWritable(Date.parse, "length", null, 1);
 if (Date.parse.length !== x) {
   $ERROR('#1: The Date.parse.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/S15.9.4.1_A1_T1.js

@@ -7,11 +7,11 @@ info: >
     attributes
 es5id: 15.9.4.1_A1_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype;
+var x = Date.prototype;
-Date.prototype = 1;
+verifyNotWritable(Date, "prototype", null, 1);
 if (Date.prototype !== x) {
   $ERROR('#1: The Date.prototype has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/S15.9.4.1_A1_T2.js

@@ -7,13 +7,19 @@ info: >
     attributes
 es5id: 15.9.4.1_A1_T2
 description: Checking DontDelete attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
+verifyNotConfigurable(Date, "prototype");
+
+try {
   if (delete Date.prototype !== false) {
     $ERROR('#1: The Date.prototype property has the attributes DontDelete');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}
 
 if (!Date.hasOwnProperty('prototype')) {
   $FAIL('#2: The Date.prototype property has the attributes DontDelete');

test/built-ins/Date/prototype/constructor/S15.9.5.1_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.1_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.constructor.length;
+var x = Date.prototype.constructor.length;
-Date.prototype.constructor.length = 1;
+verifyNotWritable(Date.prototype.constructor, "length", null, 1);
 if (Date.prototype.constructor.length !== x) {
   $ERROR('#1: The Date.prototype.constructor.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getDate/S15.9.5.14_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.14_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getDate.length;
+var x = Date.prototype.getDate.length;
-Date.prototype.getDate.length = 1;
+verifyNotWritable(Date.prototype.getDate, "length", null, 1);
 if (Date.prototype.getDate.length !== x) {
   $ERROR('#1: The Date.prototype.getDate.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getDay/S15.9.5.16_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.16_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getDay.length;
+var x = Date.prototype.getDay.length;
-Date.prototype.getDay.length = 1;
+verifyNotWritable(Date.prototype.getDay, "length", null, 1);
 if (Date.prototype.getDay.length !== x) {
   $ERROR('#1: The Date.prototype.getDay.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getFullYear/S15.9.5.10_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.10_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getFullYear.length;
+var x = Date.prototype.getFullYear.length;
-Date.prototype.getFullYear.length = 1;
+verifyNotWritable(Date.prototype.getFullYear, "length", null, 1);
 if (Date.prototype.getFullYear.length !== x) {
   $ERROR('#1: The Date.prototype.getFullYear.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getHours/S15.9.5.18_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.18_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getHours.length;
+var x = Date.prototype.getHours.length;
-Date.prototype.getHours.length = 1;
+verifyNotWritable(Date.prototype.getHours, "length", null, 1);
 if (Date.prototype.getHours.length !== x) {
   $ERROR('#1: The Date.prototype.getHours.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getMilliseconds/S15.9.5.24_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.24_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getMilliseconds.length;
+var x = Date.prototype.getMilliseconds.length;
-Date.prototype.getMilliseconds.length = 1;
+verifyNotWritable(Date.prototype.getMilliseconds, "length", null, 1);
 if (Date.prototype.getMilliseconds.length !== x) {
   $ERROR('#1: The Date.prototype.getMilliseconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getMinutes/S15.9.5.20_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.20_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getMinutes.length;
+var x = Date.prototype.getMinutes.length;
-Date.prototype.getMinutes.length = 1;
+verifyNotWritable(Date.prototype.getMinutes, "length", null, 1);
 if (Date.prototype.getMinutes.length !== x) {
   $ERROR('#1: The Date.prototype.getMinutes.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getMonth/S15.9.5.12_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.12_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getMonth.length;
+var x = Date.prototype.getMonth.length;
-Date.prototype.getMonth.length = 1;
+verifyNotWritable(Date.prototype.getMonth, "length", null, 1);
 if (Date.prototype.getMonth.length !== x) {
   $ERROR('#1: The Date.prototype.getMonth.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getSeconds/S15.9.5.22_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.22_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getSeconds.length;
+var x = Date.prototype.getSeconds.length;
-Date.prototype.getSeconds.length = 1;
+verifyNotWritable(Date.prototype.getSeconds, "length", null, 1);
 if (Date.prototype.getSeconds.length !== x) {
   $ERROR('#1: The Date.prototype.getSeconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getTime/S15.9.5.9_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.9_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getTime.length;
+var x = Date.prototype.getTime.length;
-Date.prototype.getTime.length = 1;
+verifyNotWritable(Date.prototype.getTime, "length", null, 1);
 if (Date.prototype.getTime.length !== x) {
   $ERROR('#1: The Date.prototype.getTime.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getTimezoneOffset/S15.9.5.26_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.26_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getTimezoneOffset.length;
+var x = Date.prototype.getTimezoneOffset.length;
-Date.prototype.getTimezoneOffset.length = 1;
+verifyNotWritable(Date.prototype.getTimezoneOffset, "length", null, 1);
 if (Date.prototype.getTimezoneOffset.length !== x) {
   $ERROR('#1: The Date.prototype.getTimezoneOffset.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCDate/S15.9.5.15_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.15_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCDate.length;
+var x = Date.prototype.getUTCDate.length;
-Date.prototype.getUTCDate.length = 1;
+verifyNotWritable(Date.prototype.getUTCDate, "length", null, 1);
 if (Date.prototype.getUTCDate.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCDate.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCDay/S15.9.5.17_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.17_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCDay.length;
+var x = Date.prototype.getUTCDay.length;
-Date.prototype.getUTCDay.length = 1;
+verifyNotWritable(Date.prototype.getUTCDay, "length", null, 1);
 if (Date.prototype.getUTCDay.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCDay.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCFullYear/S15.9.5.11_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.11_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCFullYear.length;
+var x = Date.prototype.getUTCFullYear.length;
-Date.prototype.getUTCFullYear.length = 1;
+verifyNotWritable(Date.prototype.getUTCFullYear, "length", null, 1);
 if (Date.prototype.getUTCFullYear.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCFullYear.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCHours/S15.9.5.19_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.19_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCHours.length;
+var x = Date.prototype.getUTCHours.length;
-Date.prototype.getUTCHours.length = 1;
+verifyNotWritable(Date.prototype.getUTCHours, "length", null, 1);
 if (Date.prototype.getUTCHours.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCHours.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCMilliseconds/S15.9.5.25_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.25_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCMilliseconds.length;
+var x = Date.prototype.getUTCMilliseconds.length;
-Date.prototype.getUTCMilliseconds.length = 1;
+verifyNotWritable(Date.prototype.getUTCMilliseconds, "length", null, 1);
 if (Date.prototype.getUTCMilliseconds.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCMilliseconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCMinutes/S15.9.5.21_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.21_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCMinutes.length;
+var x = Date.prototype.getUTCMinutes.length;
-Date.prototype.getUTCMinutes.length = 1;
+verifyNotWritable(Date.prototype.getUTCMinutes, "length", null, 1);
 if (Date.prototype.getUTCMinutes.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCMinutes.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCMonth/S15.9.5.13_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.13_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCMonth.length;
+var x = Date.prototype.getUTCMonth.length;
-Date.prototype.getUTCMonth.length = 1;
+verifyNotWritable(Date.prototype.getUTCMonth, "length", null, 1);
 if (Date.prototype.getUTCMonth.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCMonth.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/getUTCSeconds/S15.9.5.23_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.23_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.getUTCSeconds.length;
+var x = Date.prototype.getUTCSeconds.length;
-Date.prototype.getUTCSeconds.length = 1;
+verifyNotWritable(Date.prototype.getUTCSeconds, "length", null, 1);
 if (Date.prototype.getUTCSeconds.length !== x) {
   $ERROR('#1: The Date.prototype.getUTCSeconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setDate/S15.9.5.36_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.36_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setDate.length;
+var x = Date.prototype.setDate.length;
-Date.prototype.setDate.length = 1;
+verifyNotWritable(Date.prototype.setDate, "length", null, 1);
 if (Date.prototype.setDate.length !== x) {
   $ERROR('#1: The Date.prototype.setDate.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setFullYear/S15.9.5.40_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.40_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setFullYear.length;
+var x = Date.prototype.setFullYear.length;
-Date.prototype.setFullYear.length = 1;
+verifyNotWritable(Date.prototype.setFullYear, "length", null, 1);
 if (Date.prototype.setFullYear.length !== x) {
   $ERROR('#1: The Date.prototype.setFullYear.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setHours/S15.9.5.34_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.34_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setHours.length;
+var x = Date.prototype.setHours.length;
-Date.prototype.setHours.length = 1;
+verifyNotWritable(Date.prototype.setHours, "length", null, 1);
 if (Date.prototype.setHours.length !== x) {
   $ERROR('#1: The Date.prototype.setHours.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setMilliseconds/S15.9.5.28_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.28_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setMilliseconds.length;
+var x = Date.prototype.setMilliseconds.length;
-Date.prototype.setMilliseconds.length = 1;
+verifyNotWritable(Date.prototype.setMilliseconds, "length", null, 1);
 if (Date.prototype.setMilliseconds.length !== x) {
   $ERROR('#1: The Date.prototype.setMilliseconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setMinutes/S15.9.5.32_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.32_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setMinutes.length;
+var x = Date.prototype.setMinutes.length;
-Date.prototype.setMinutes.length = 1;
+verifyNotWritable(Date.prototype.setMinutes, "length", null, 1);
 if (Date.prototype.setMinutes.length !== x) {
   $ERROR('#1: The Date.prototype.setMinutes.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setMonth/S15.9.5.38_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.38_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setMonth.length;
+var x = Date.prototype.setMonth.length;
-Date.prototype.setMonth.length = 1;
+verifyNotWritable(Date.prototype.setMonth, "length", null, 1);
 if (Date.prototype.setMonth.length !== x) {
   $ERROR('#1: The Date.prototype.setMonth.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setSeconds/S15.9.5.30_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.30_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setSeconds.length;
+var x = Date.prototype.setSeconds.length;
-Date.prototype.setSeconds.length = 1;
+verifyNotWritable(Date.prototype.setSeconds, "length", null, 1);
 if (Date.prototype.setSeconds.length !== x) {
   $ERROR('#1: The Date.prototype.setSeconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setTime/S15.9.5.27_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.27_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setTime.length;
+var x = Date.prototype.setTime.length;
-Date.prototype.setTime.length = 1;
+verifyNotWritable(Date.prototype.setTime, "length", null, 1);
 if (Date.prototype.setTime.length !== x) {
   $ERROR('#1: The Date.prototype.setTime.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCDate/S15.9.5.37_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.37_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCDate.length;
+var x = Date.prototype.setUTCDate.length;
-Date.prototype.setUTCDate.length = 1;
+verifyNotWritable(Date.prototype.setUTCDate, "length", null, 1);
 if (Date.prototype.setUTCDate.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCDate.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCFullYear/S15.9.5.41_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.41_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCFullYear.length;
+var x = Date.prototype.setUTCFullYear.length;
-Date.prototype.setUTCFullYear.length = 1;
+verifyNotWritable(Date.prototype.setUTCFullYear, "length", null, 1);
 if (Date.prototype.setUTCFullYear.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCFullYear.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCHours/S15.9.5.35_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.35_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCHours.length;
+var x = Date.prototype.setUTCHours.length;
-Date.prototype.setUTCHours.length = 1;
+verifyNotWritable(Date.prototype.setUTCHours, "length", null, 1);
 if (Date.prototype.setUTCHours.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCHours.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCMilliseconds/S15.9.5.29_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.29_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCMilliseconds.length;
+var x = Date.prototype.setUTCMilliseconds.length;
-Date.prototype.setUTCMilliseconds.length = 1;
+verifyNotWritable(Date.prototype.setUTCMilliseconds, "length", null, 1);
 if (Date.prototype.setUTCMilliseconds.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCMilliseconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCMinutes/S15.9.5.33_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.33_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCMinutes.length;
+var x = Date.prototype.setUTCMinutes.length;
-Date.prototype.setUTCMinutes.length = 1;
+verifyNotWritable(Date.prototype.setUTCMinutes, "length", null, 1);
 if (Date.prototype.setUTCMinutes.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCMinutes.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCMonth/S15.9.5.39_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.39_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCMonth.length;
+var x = Date.prototype.setUTCMonth.length;
-Date.prototype.setUTCMonth.length = 1;
+verifyNotWritable(Date.prototype.setUTCMonth, "length", null, 1);
 if (Date.prototype.setUTCMonth.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCMonth.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/setUTCSeconds/S15.9.5.31_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.31_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.setUTCSeconds.length;
+var x = Date.prototype.setUTCSeconds.length;
-Date.prototype.setUTCSeconds.length = 1;
+verifyNotWritable(Date.prototype.setUTCSeconds, "length", null, 1);
 if (Date.prototype.setUTCSeconds.length !== x) {
   $ERROR('#1: The Date.prototype.setUTCSeconds.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toDateString/S15.9.5.3_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.3_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toDateString.length;
+var x = Date.prototype.toDateString.length;
-Date.prototype.toDateString.length = 1;
+verifyNotWritable(Date.prototype.toDateString, "length", null, 1);
 if (Date.prototype.toDateString.length !== x) {
   $ERROR('#1: The Date.prototype.toDateString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toLocaleDateString/S15.9.5.6_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.6_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toLocaleDateString.length;
+var x = Date.prototype.toLocaleDateString.length;
-Date.prototype.toLocaleDateString.length = 1;
+verifyNotWritable(Date.prototype.toLocaleDateString, "length", null, 1);
 if (Date.prototype.toLocaleDateString.length !== x) {
   $ERROR('#1: The Date.prototype.toLocaleDateString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toLocaleString/S15.9.5.5_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.5_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toLocaleString.length;
+var x = Date.prototype.toLocaleString.length;
-Date.prototype.toLocaleString.length = 1;
+verifyNotWritable(Date.prototype.toLocaleString, "length", null, 1);
 if (Date.prototype.toLocaleString.length !== x) {
   $ERROR('#1: The Date.prototype.toLocaleString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toLocaleTimeString/S15.9.5.7_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.7_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toLocaleTimeString.length;
+var x = Date.prototype.toLocaleTimeString.length;
-Date.prototype.toLocaleTimeString.length = 1;
+verifyNotWritable(Date.prototype.toLocaleTimeString, "length", null, 1);
 if (Date.prototype.toLocaleTimeString.length !== x) {
   $ERROR('#1: The Date.prototype.toLocaleTimeString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toString/S15.9.5.2_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.2_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toString.length;
+var x = Date.prototype.toString.length;
-Date.prototype.toString.length = 1;
+verifyNotWritable(Date.prototype.toString, "length", null, 1);
 if (Date.prototype.toString.length !== x) {
   $ERROR('#1: The Date.prototype.toString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toTimeString/S15.9.5.4_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.4_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toTimeString.length;
+var x = Date.prototype.toTimeString.length;
-Date.prototype.toTimeString.length = 1;
+verifyNotWritable(Date.prototype.toTimeString, "length", null, 1);
 if (Date.prototype.toTimeString.length !== x) {
   $ERROR('#1: The Date.prototype.toTimeString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/toUTCString/S15.9.5.42_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontDelete, DontEnum } attributes
 es5id: 15.9.5.42_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.toUTCString.length;
+var x = Date.prototype.toUTCString.length;
-Date.prototype.toUTCString.length = 1;
+verifyNotWritable(Date.prototype.toUTCString, "length", null, 1);
 if (Date.prototype.toUTCString.length !== x) {
   $ERROR('#1: The Date.prototype.toUTCString.length has the attribute ReadOnly');
 }

test/built-ins/Date/prototype/valueOf/S15.9.5.8_A3_T1.js

@@ -7,11 +7,11 @@ info: >
     DontEnum } attributes
 es5id: 15.9.5.8_A3_T1
 description: Checking ReadOnly attribute
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-x = Date.prototype.valueOf.length;
+var x = Date.prototype.valueOf.length;
-Date.prototype.valueOf.length = 1;
+verifyNotWritable(Date.prototype.valueOf, "length", null, 1);
 if (Date.prototype.valueOf.length !== x) {
   $ERROR('#1: The Date.prototype.valueOf.length has the attribute ReadOnly');
 }

test/built-ins/Error/prototype/S15.11.3.1_A1_T1.js

@@ -5,14 +5,20 @@
 info: Error.prototype property has the attributes {DontDelete}
 es5id: 15.11.3.1_A1_T1
 description: Checking if deleting the Error.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 var proto=Error.prototype;
 //////////////////////////////////////////////////////////////////////////////
 //CHECK#1
-if(delete Error.prototype){
+verifyNotConfigurable(Error, "prototype");
-  $ERROR('#1: delete Error.prototype return false');
+try {
+  if ((delete Error.prototype) !== false) {
+    $ERROR('#1: Error.prototype has the attribute DontDelete');
+  }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
 }
 //
 //////////////////////////////////////////////////////////////////////////////

test/built-ins/Error/prototype/S15.11.3.1_A3_T1.js

@@ -5,7 +5,7 @@
 info: Error.prototype property has the attributes {ReadOnly}
 es5id: 15.11.3.1_A3_T1
 description: Checking if varying the Error.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 //////////////////////////////////////////////////////////////////////////////
@@ -16,9 +16,9 @@ if (!(Error.hasOwnProperty('prototype'))) {
 //
 //////////////////////////////////////////////////////////////////////////////
 
-__obj = Error.prototype;
+var __obj = Error.prototype;
 
-Error.prototype = function(){return "shifted";};
+verifyNotWritable(Error, "prototype", null, function(){return "shifted";});
 
 //////////////////////////////////////////////////////////////////////////////
 //CHECK#2
@@ -34,7 +34,7 @@ try {
   Error.prototype();
   $ERROR('#3: "Error.prototype()" lead to throwing exception');
 } catch (e) {
-  ;
+  if (e instanceof Test262Error) throw e;
 }
 //
 //////////////////////////////////////////////////////////////////////////////

test/built-ins/Function/length/S15.3.5.1_A3_T1.js

@@ -7,23 +7,22 @@ es5id: 15.3.5.1_A3_T1
 description: >
     Checking if varying the length property of
     Function("arg1,arg2,arg3","arg4,arg5", null) fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
-f = new Function("arg1,arg2,arg3","arg4,arg5", null);
+var f = new Function("arg1,arg2,arg3","arg4,arg5", null);
 
 //CHECK#1
 if (!(f.hasOwnProperty('length'))) {
   $FAIL('#1: the function has length property.');
 }
 
-length = f.length;
+var flength = f.length;
 
-f.length = function(){};
+verifyNotWritable(f, "length", null, function(){});
 
 //CHECK#2
-if (f.length !== length) {
+if (f.length !== flength) {
   $ERROR('#2: the function.length property has the attributes ReadOnly');
 }
 
@@ -32,7 +31,7 @@ try {
   f.length();
   $ERROR('#3: the function.length property has the attributes ReadOnly');
 } catch (e) {
-  ;
+  if (e instanceof Test262Error) throw e;
 }
 
 //CHECK#4

test/built-ins/Function/length/S15.3.5.1_A3_T2.js

@@ -7,23 +7,22 @@ es5id: 15.3.5.1_A3_T2
 description: >
     Checking if varying the length property of
     Function("arg1,arg2,arg3", null) fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
-f =  Function("arg1,arg2,arg3", null);
+var f =  Function("arg1,arg2,arg3", null);
 
 //CHECK#1
 if (!(f.hasOwnProperty('length'))) {
   $FAIL('#1: the function has length property.');
 }
 
-length = f.length;
+var flength = f.length;
 
-f.length = function(){};
+verifyNotWritable(f, "length", null, function(){});
 
 //CHECK#2
-if (f.length !== length) {
+if (f.length !== flength) {
   $ERROR('#2: the function.length property has the attributes ReadOnly');
 }
 
@@ -32,7 +31,7 @@ try {
   f.length();
   $ERROR('#3: the function.length property has the attributes ReadOnly');
 } catch (e) {
-  ;
+  if (e instanceof Test262Error) throw e;
 }
 
 //CHECK#4

test/built-ins/Function/length/S15.3.5.1_A3_T3.js

@@ -7,23 +7,22 @@ es5id: 15.3.5.1_A3_T3
 description: >
     Checking if varying the length property of
     Function("arg1,arg2,arg3","arg1,arg2","arg3", null) fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
-f = new Function("arg1,arg2,arg3","arg1,arg2","arg3", null);
+var f = new Function("arg1,arg2,arg3","arg1,arg2","arg3", null);
 
 //CHECK#1
 if (!(f.hasOwnProperty('length'))) {
   $FAIL('#1: the function has length property.');
 }
 
-length = f.length;
+var flength = f.length;
 
-f.length = function(){};
+verifyNotWritable(f, "length", null, function(){});
 
 //CHECK#2
-if (f.length !== length) {
+if (f.length !== flength) {
   $ERROR('#2: the function.length property has the attributes ReadOnly');
 }
 
@@ -32,7 +31,7 @@ try {
   f.length();
   $ERROR('#3: the function.length property has the attributes ReadOnly');
 } catch (e) {
-  ;
+  if (e instanceof Test262Error) throw e;
 }
 
 //CHECK#4

test/built-ins/Function/prototype/S15.3.3.1_A1.js

@@ -5,11 +5,12 @@
 info: The Function.prototype property has the attribute ReadOnly
 es5id: 15.3.3.1_A1
 description: Checking if varying the Function.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 var obj = Function.prototype;
-Function.prototype = function(){return "shifted";};
+
+verifyNotWritable(Function, "prototype", null, function(){return "shifted";});
 
 //CHECK#1
 if (Function.prototype !== obj) {

test/built-ins/Function/prototype/S15.3.3.1_A3.js

@@ -5,12 +5,22 @@
 info: The Function.prototype property has the attribute DontDelete
 es5id: 15.3.3.1_A3
 description: Checking if deleting the Function.prototype property fails
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
-delete Function.prototype;
+verifyNotConfigurable(Function, "prototype");
 
 //CHECK#1
-if (!(Function.hasOwnProperty('prototype'))) {
+try {
-  $ERROR('#1: the Function.prototype property has the attributes DontDelete.');
+  if ((delete Function.prototype) !== false) {
+    $ERROR('#1: Function.prototype has the attribute DontDelete');
+  }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}
+
+//CHECK#2
+if (!(Function.hasOwnProperty('prototype'))) {
+  $ERROR('#2: the Function.prototype property has the attributes DontDelete.');
 }

test/built-ins/Function/prototype/S15.3.5.2_A1_T1.js

@@ -7,23 +7,29 @@ es5id: 15.3.5.2_A1_T1
 description: >
     Checking if deleting the prototype property of Function("", null)
     fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
-f = new Function("", null);
+var f = new Function("", null);
 
 //CHECK#1
 if (!(f.hasOwnProperty('prototype'))) {
   $FAIL('#1: the function has length property.');
 }
 
-fproto = f.prototype;
+var fproto = f.prototype;
+
+verifyNotConfigurable(f, "prototype");
 
 //CHECK#2
-if (delete f.prototype) {
+try {
+  if ((delete f.prototype) !== false) {
     $ERROR('#2: the prototype property has the attributes { DontDelete }');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}
 
 //CHECK#3
 if (f.prototype !== fproto) {

test/built-ins/Function/prototype/S15.3.5.2_A1_T2.js

@@ -7,23 +7,29 @@ es5id: 15.3.5.2_A1_T2
 description: >
     Checking if deleting the prototype property of Function(void 0,
     "") fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
-f = Function(void 0, "");
+var f = Function(void 0, "");
 
 //CHECK#1
 if (!(f.hasOwnProperty('prototype'))) {
   $FAIL('#1: the function has length property.');
 }
 
-fproto = f.prototype;
+var fproto = f.prototype;
+
+verifyNotConfigurable(f, "prototype");
 
 //CHECK#2
-if (delete f.prototype) {
+try {
+  if ((delete f.prototype) !== false) {
     $ERROR('#2: the prototype property has the attributes { DontDelete }');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}
 
 //CHECK#3
 if (f.prototype !== fproto) {

test/built-ins/Function/prototype/apply/S15.3.4.3_A10.js

@@ -7,8 +7,7 @@ es5id: 15.3.4.3_A10
 description: >
     Checking if varying the Function.prototype.apply.length property
     fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
 //CHECK#1
@@ -18,7 +17,7 @@ if (!(Function.prototype.apply.hasOwnProperty('length'))) {
 
 var obj = Function.prototype.apply.length;
 
-Function.prototype.apply.length = function(){return "shifted";};
+verifyNotWritable(Function.prototype.apply, "length", null, function(){return "shifted";});
 
 //CHECK#2
 if (Function.prototype.apply.length !== obj) {

test/built-ins/Function/prototype/bind/15.3.4.5-15-3.js

@@ -9,19 +9,13 @@ es5id: 15.3.4.5-15-3
 description: >
     Function.prototype.bind - The [[Writable]] attribute of length
     property in F set as false
-flags: [noStrict]
+includes: [propertyHelper.js]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
-        var canWritable = false;
-        var hasProperty = false;
 function foo() { }
 var obj = foo.bind({});
-        hasProperty = obj.hasOwnProperty("length");
+var flength = obj.length;
-        obj.length = 100;
+
-        canWritable = (obj.length === 100);
+assert(obj.hasOwnProperty("length"));
-        return hasProperty && !canWritable;
+verifyNotWritable(obj, "length", null, 100);
-    }
+assert.sameValue(obj.length, flength);
-runTestCase(testcase);

test/built-ins/Function/prototype/call/S15.3.4.4_A10.js

@@ -7,8 +7,7 @@ es5id: 15.3.4.4_A10
 description: >
     Checking if varying the Function.prototype.call.length property
     fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
 //CHECK#1
@@ -18,7 +17,7 @@ if (!(Function.prototype.call.hasOwnProperty('length'))) {
 
 var obj = Function.prototype.call.length;
 
-Function.prototype.call.length = function(){return "shifted";};
+verifyNotWritable(Function.prototype.call, "length", null, function(){return "shifted";});
 
 //CHECK#2
 if (Function.prototype.call.length !== obj) {

test/built-ins/Function/prototype/toString/S15.3.4.2_A10.js

@@ -7,8 +7,7 @@ es5id: 15.3.4.2_A10
 description: >
     Checking if varying the Function.prototype.toString.length
     property fails
-flags: [noStrict]
+includes: [$FAIL.js, propertyHelper.js]
-includes: [$FAIL.js]
 ---*/
 
 //CHECK#1
@@ -18,7 +17,7 @@ if (!(Function.prototype.toString.hasOwnProperty('length'))) {
 
 var obj = Function.prototype.toString.length;
 
-Function.prototype.toString.length = function(){return "shifted";};
+verifyNotWritable(Function.prototype.toString, "length", null, function(){return "shifted";});
 
 //CHECK#2
 if (Function.prototype.toString.length !== obj) {

test/built-ins/Infinity/S15.1.1.2_A2_T1.js

@@ -0,0 +1,15 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The Infinity is ReadOnly
+es5id: 15.1.1.2_A2_T1
+description: Checking typeof Functions
+includes: [propertyHelper.js, fnGlobalObject.js]
+---*/
+
+// CHECK#1
+verifyNotWritable(fnGlobalObject(), "Infinity", null, true);
+if (typeof(Infinity) === "boolean") {
+	$ERROR('#1: Infinity = true; typeof(Infinity) !== "boolean". Actual: ' + (typeof(Infinity)));
+}

test/built-ins/Infinity/S15.1.1.2_A2_T2.js

@@ -2,13 +2,14 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-info: The Infinity is not ReadOnly
+info: The Infinity is ReadOnly
 es5id: 15.1.1.2_A2_T2
 description: Checking typeof Functions
+flags: [noStrict]
 ---*/
 
 // CHECK#1
-var Finite = true;
+Infinity = true;
-if (typeof(Finite) !== "boolean") {
+if (typeof(Infinity) === "boolean") {
-	$ERROR('#1: Finite = true; typeof(NaN) === "boolean". Actual: ' + (typeof(NaN))); 
+	$ERROR('#1: Infinity = true; typeof(Infinity) !== "boolean". Actual: ' + (typeof(Infinity)));
 }

test/built-ins/Infinity/S15.1.1.2_A3_T1.js

@@ -0,0 +1,21 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The Infinity is DontDelete
+es5id: 15.1.1.2_A3_T1
+description: Use delete
+includes: [propertyHelper.js, fnGlobalObject.js]
+---*/
+
+// CHECK#1
+verifyNotConfigurable(fnGlobalObject(), "Infinity");
+
+try {
+  if (delete fnGlobalObject().Infinity !== false) {
+    $ERROR('#1: delete Infinity === false.');
+  }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Infinity/S15.1.1.2_A3_T2.js

@@ -3,7 +3,7 @@
 
 /*---
 info: The Infinity is DontDelete
-es5id: 15.1.1.2_A3.1
+es5id: 15.1.1.2_A3_T2
 description: Use delete
 flags: [noStrict]
 ---*/

test/built-ins/Infinity/S15.1.1.2_A4.js

@@ -3,7 +3,7 @@
 
 /*---
 info: The Infinity is DontEnum
-es5id: 15.1.1.2_A3.2
+es5id: 15.1.1.2_A4
 description: Use for-in statement
 ---*/
 

test/built-ins/Math/E/S15.8.1.1_A3.js

@@ -5,10 +5,17 @@
 info: Value Property E of the Math Object has the attribute DontDelete
 es5id: 15.8.1.1_A3
 description: Checking if Math.E property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
+verifyNotConfigurable(Math, "E");
+
 // CHECK#1
+try {
   if (delete Math.E === true) {
     $ERROR('#1: Value Property E of the Math Object hasn\'t attribute DontDelete: \'Math.E === true\'');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Math/E/S15.8.1.1_A4.js

@@ -5,12 +5,12 @@
 info: Value Property E of the Math Object has the attribute ReadOnly
 es5id: 15.8.1.1_A4
 description: Checking if Math.E property has the attribute ReadOnly
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
 var x = Math.E;
-Math.E = 1;
+verifyNotWritable(Math, "E", null, 1);
 if (Math.E !== x) {
   $ERROR('#1: Math.E hasn\'t ReadOnly: \'x = Math.E;Math.E = 1;Math.E === x\'');
 }

test/built-ins/Math/LN10/S15.8.1.2_A3.js

@@ -5,10 +5,17 @@
 info: Value Property LN10 of the Math Object has the attribute DontDelete
 es5id: 15.8.1.2_A3
 description: Checking if Math.LN10 property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
+verifyNotConfigurable(Math, "LN10");
+
 // CHECK#1
+try {
   if (delete Math.LN10 === true) {
     $ERROR('#1: Value Property LN10 of the Math Object hasn\'t attribute DontDelete: \'Math.LN10 === true\'');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Math/LN10/S15.8.1.2_A4.js

@@ -5,12 +5,12 @@
 info: Value Property LN10 of the Math Object has the attribute ReadOnly
 es5id: 15.8.1.2_A4
 description: Checking if Math.LN10 property has the attribute ReadOnly
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
 var x = Math.LN10;
-Math.LN10 = 1;
+verifyNotWritable(Math, "LN10", null, 1);
 if (Math.LN10 !== x) {
   $ERROR('#1: Math.LN10 hasn\'t ReadOnly: \'x = Math.LN10;Math.LN10 = 1;Math.LN10 === x\'');
 }

test/built-ins/Math/LN2/S15.8.1.3_A3.js

@@ -5,10 +5,17 @@
 info: Value Property LN2 of the Math Object has the attribute DontDelete
 es5id: 15.8.1.3_A3
 description: Checking if Math.LN2 property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
+verifyNotConfigurable(Math, "LN2");
+
 // CHECK#1
+try {
   if (delete Math.LN2 === true) {
     $ERROR('#1: Value Property LN2 of the Math Object hasn\'t attribute DontDelete: \'Math.LN2 === true\'');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Math/LN2/S15.8.1.3_A4.js

@@ -5,12 +5,12 @@
 info: Value Property LN2 of the Math Object has the attribute ReadOnly
 es5id: 15.8.1.3_A4
 description: Checking if Math.LN2 property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
 var x = Math.LN2;
-Math.LN2 = 1;
+verifyNotWritable(Math, "LN2", null, 1);
 if (Math.LN2 !== x) {
   $ERROR('#1: Math.LN2 hasn\'t ReadOnly: \'x = Math.LN2;Math.LN2 = 1;Math.LN2 === x\'');
 }

test/built-ins/Math/LOG10E/S15.8.1.5_A3.js

@@ -5,10 +5,17 @@
 info: Value Property LOG10E of the Math Object has the attribute DontDelete
 es5id: 15.8.1.5_A3
 description: Checking if Math.LOG10E property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
+verifyNotConfigurable(Math, "LOG10E");
+
 // CHECK#1
+try {
   if (delete Math.LOG10E === true) {
     $ERROR('#1: Value Property LOG10E of the Math Object hasn\'t attribute DontDelete: \'Math.LOG10E === true\'');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}

test/built-ins/Math/LOG10E/S15.8.1.5_A4.js

@@ -5,12 +5,12 @@
 info: Value Property LOG10E of the Math Object has the attribute ReadOnly
 es5id: 15.8.1.5_A4
 description: Checking if Math.LOG10E property has the attribute ReadOnly
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
 // CHECK#1
 var x = Math.LOG10E;
-Math.LOG10E = 1;
+verifyNotWritable(Math, "LOG10E", null, 1);
 if (Math.LOG10E !== x) {
   $ERROR('#1: Math.LOG10E hasn\'t ReadOnly: \'x = Math.LOG10E;Math.LOG10E = 1;Math.LOG10E === x\'');
 }

test/built-ins/Math/LOG2E/S15.8.1.4_A3.js

@@ -5,10 +5,17 @@
 info: Value Property LOG2E of the Math Object has the attribute DontDelete
 es5id: 15.8.1.4_A3
 description: Checking if Math.LOG2E property has the attribute DontDelete
-flags: [noStrict]
+includes: [propertyHelper.js]
 ---*/
 
+verifyNotConfigurable(Math, "LOG2E");
+
 // CHECK#1
+try {
   if (delete Math.LOG2E === true) {
     $ERROR('#1: Value Property LOG2E of the Math Object hasn\'t attribute DontDelete: \'Math.LOG2E === true\'');
   }
+} catch (e) {
+  if (e instanceof Test262Error) throw e;
+  assert(e instanceof TypeError);
+}