Replace runTestCase with assert helpers [test/built-ins/JSON]

test/built-ins/JSON/15.12-0-1.js

@@ -8,13 +8,8 @@ info: >
     4.2 calls out JSON as one of the built-in objects.
 es5id: 15.12-0-1
 description: JSON must be a built-in object
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var o = JSON;
-  if (typeof(o) === "object") {  
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(typeof(o), "object", 'typeof(o)');

test/built-ins/JSON/15.12-0-4.js

@@ -10,18 +10,13 @@ info: >
     JSON, and we should not be able to enumerate them.
 es5id: 15.12-0-4
 description: JSON object's properties must be non enumerable
-includes: [runTestCase.js]
 ---*/
 
-function testcase() { 
   var o = JSON;
   var i = 0;
   for (var p in o) {
     i++;
   }
     
-  if (i === 0) {
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(i, 0, 'i');

test/built-ins/JSON/parse/15.12.1.1-0-9.js

@@ -4,16 +4,10 @@
 /*---
 es5id: 15.12.1.1-0-9
 description: Whitespace characters can appear before/after any JSONtoken
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
     JSON.parse('\t\r \n{\t\r \n'+
                    '"property"\t\r \n:\t\r \n{\t\r \n}\t\r \n,\t\r \n' +
                    '"prop2"\t\r \n:\t\r \n'+
                         '[\t\r \ntrue\t\r \n,\t\r \nnull\t\r \n,123.456\t\r \n]'+
                      '\t\r \n}\t\r \n');  // should JOSN parse without error
-    return true;
-  }
-runTestCase(testcase);

test/built-ins/JSON/parse/15.12.2-0-1.js

@@ -15,14 +15,8 @@ info: >
     taking 2 parameters.
 es5id: 15.12.2-0-1
 description: JSON.parse must exist as a function
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var f = JSON.parse;
 
-  if (typeof(f) === "function") {
-    return true;
-  }
- }
-runTestCase(testcase);
+assert.sameValue(typeof(f), "function", 'typeof(f)');

test/built-ins/JSON/parse/15.12.2-0-2.js

@@ -15,14 +15,9 @@ info: >
     taking 2 parameters.
 es5id: 15.12.2-0-2
 description: JSON.parse must exist as a function taking 2 parameters
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var f = JSON.parse;
 
-  if (typeof(f) === "function" && f.length === 2) {
-    return true;
-  }
- }
-runTestCase(testcase);
+assert.sameValue(typeof(f), "function", 'typeof(f)');
+assert.sameValue(f.length, 2, 'f.length');

test/built-ins/JSON/parse/15.12.2-0-3.js

@@ -8,12 +8,9 @@ info: >
     should be able to delete (8.6.2.5) the stringify and parse properties.
 es5id: 15.12.2-0-3
 description: JSON.parse must be deletable (configurable)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var o = JSON;
   var desc = Object.getOwnPropertyDescriptor(o, "parse");
-  return desc.configurable === true;
- }
-runTestCase(testcase);
+
+assert.sameValue(desc.configurable, true, 'desc.configurable');

test/built-ins/JSON/stringify/15.12.3-0-1.js

@@ -15,14 +15,8 @@ info: >
     taking 3 parameters.
 es5id: 15.12.3-0-1
 description: JSON.stringify must exist as be a function
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var f = JSON.stringify;
 
-  if (typeof(f) === "function") {
-    return true;
-  }
- }
-runTestCase(testcase);
+assert.sameValue(typeof(f), "function", 'typeof(f)');

test/built-ins/JSON/stringify/15.12.3-0-2.js

@@ -15,14 +15,9 @@ info: >
     taking 3 parameters.
 es5id: 15.12.3-0-2
 description: JSON.stringify must exist as be a function taking 3 parameters
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var f = JSON.stringify;
 
-  if (typeof(f) === "function" && f.length === 3) {
-    return true;
-  }
- }
-runTestCase(testcase);
+assert.sameValue(typeof(f), "function", 'typeof(f)');
+assert.sameValue(f.length, 3, 'f.length');

test/built-ins/JSON/stringify/15.12.3-0-3.js

@@ -8,14 +8,9 @@ info: >
     should be able to delete (8.6.2.5) the stringify and parse properties.
 es5id: 15.12.3-0-3
 description: JSON.stringify must be deletable (configurable)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var o = JSON;
   var desc = Object.getOwnPropertyDescriptor(o, "stringify");
-  if (desc.configurable === true) {
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(desc.configurable, true, 'desc.configurable');

test/built-ins/JSON/stringify/15.12.3-11-16.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property name is the
     union of all null character (The abstract operation Quote(value)
     step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F": "John" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1); 
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-17.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property name starts
     with the union of all null character (The abstract operation
     Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001Fname": "John" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-18.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property name ends
     with the union of all null character (The abstract operation
     Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F": "John" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-19.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property name starts
     and ends with the union of all null character (The abstract
     operation Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001Fname\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F": "John" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1 && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-20.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property name
     middles with the union of all null character (The abstract
     operation Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "na\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001Fme": "John" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-21.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property value is
     the union of all null character (The abstract operation
     Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-22.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property value
     starts with the union of all null character (The abstract
     operation Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001FJohn" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-23.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property value ends
     with the union of all null character (The abstract operation
     Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name": "John\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-24.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property value
     starts and ends with the union of all null character (The abstract
     operation Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001FJohn\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001F" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1 && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-25.js

@@ -7,11 +7,8 @@ description: >
     JSON.stringify - stringifying an object where property value
     middles with the union of all null character (The abstract
     operation Quote(value) step 2.c)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-
         var result = true;
 
         var expectedNullChars = new Array();
@@ -53,6 +50,5 @@ function testcase() {
             var str = JSON.stringify({ "name": "Jo\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\u000A\u000B\u000C\u000D\u000E\u000F\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001A\u001B\u001C\u001D\u001E\u001Fhn" });
             result = (result && str.indexOf(expectedNullChars[index]) !== -1 && str.indexOf(expectedNullChars[index]) !== -1);
         }
-        return result;
-    }
-runTestCase(testcase);
+
+assert(result, 'result !== true');

test/built-ins/JSON/stringify/15.12.3-11-26.js

@@ -6,16 +6,13 @@ es5id: 15.12.3-11-26
 description: >
     JSON.stringify - the last element of the concatenation is ']' (The
     abstract operation JA(value) step 10.b.iii)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         var arrObj = [];
         arrObj[0] = "a";
         arrObj[1] = "b";
         arrObj[2] = "c";
 
         var jsonText = JSON.stringify(arrObj, undefined, "").toString();
-        return jsonText.charAt(jsonText.length - 1) === "]";
-    }
-runTestCase(testcase);
+
+assert.sameValue(jsonText.charAt(jsonText.length - 1), "]", 'jsonText.charAt(jsonText.length - 1)');

test/built-ins/JSON/stringify/15.12.3-5-a-i-1.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-5-a-i-1
 description: >
     JSON.stringify converts Number wrapper object space aruguments to
     Number values
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj,null, new Number(5))=== JSON.stringify(obj,null, 5);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, new Number(5)), JSON.stringify(obj,null, 5), 'JSON.stringify(obj,null, new Number(5))');

test/built-ins/JSON/stringify/15.12.3-5-b-i-1.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-5-b-i-1
 description: >
     JSON.stringify converts String wrapper object space aruguments to
     String values
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj,null, new String('xxx'))=== JSON.stringify(obj,null, 'xxx');
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, new String('xxx')), JSON.stringify(obj,null, 'xxx'), 'JSON.stringify(obj,null, new String("xxx"))');

test/built-ins/JSON/stringify/15.12.3-6-a-1.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-6-a-1
 description: >
     JSON.stringify treats numeric space arguments greater than 10 the
     same as a  space argument of 10.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj,null, 10)=== JSON.stringify(obj,null, 100);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, 10), JSON.stringify(obj,null, 100), 'JSON.stringify(obj,null, 10)');

test/built-ins/JSON/stringify/15.12.3-6-a-2.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-6-a-2
 description: >
     JSON.stringify truccates non-integer numeric space arguments to
     their integer part.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj,null, 5.99999)=== JSON.stringify(obj,null, 5);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, 5.99999), JSON.stringify(obj,null, 5), 'JSON.stringify(obj,null, 5.99999)');

test/built-ins/JSON/stringify/15.12.3-6-b-4.js

@@ -6,13 +6,10 @@ es5id: 15.12.3-6-b-4
 description: >
     JSON.stringify treats numeric space arguments (in the range 1..10)
     is equivalent to a string of spaces of that length.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
   var fiveSpaces = '     ';
   //               '12345'
-  return JSON.stringify(obj,null, 5)=== JSON.stringify(obj, null, fiveSpaces);  
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, 5), JSON.stringify(obj, null, fiveSpaces), 'JSON.stringify(obj,null, 5)');

test/built-ins/JSON/stringify/15.12.3-7-a-1.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-7-a-1
 description: >
     JSON.stringify only uses the first 10 characters of a string space
     arguments.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj,null, '0123456789xxxxxxxxx')=== JSON.stringify(obj,null, '0123456789');  
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj,null, '0123456789xxxxxxxxx'), JSON.stringify(obj,null, '0123456789'), 'JSON.stringify(obj,null, "0123456789xxxxxxxxx")');

test/built-ins/JSON/stringify/15.12.3-8-a-1.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-8-a-1
 description: >
     JSON.stringify treats an empty string space argument the same as a
     missing space argument.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj)=== JSON.stringify(obj,null, '');
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj), JSON.stringify(obj,null, ''), 'JSON.stringify(obj)');

test/built-ins/JSON/stringify/15.12.3-8-a-2.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-8-a-2
 description: >
     JSON.stringify treats an Boolean space argument the same as a
     missing space argument.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj)=== JSON.stringify(obj,null, true);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj), JSON.stringify(obj,null, true), 'JSON.stringify(obj)');

test/built-ins/JSON/stringify/15.12.3-8-a-3.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-8-a-3
 description: >
     JSON.stringify treats an null space argument the same as a missing
     space argument.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj)=== JSON.stringify(obj,null, null);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj), JSON.stringify(obj,null, null), 'JSON.stringify(obj)');

test/built-ins/JSON/stringify/15.12.3-8-a-4.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-8-a-4
 description: >
     JSON.stringify treats an Boolean wrapper space argument the same
     as a missing space argument.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj)=== JSON.stringify(obj,null, new Boolean(true));
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj), JSON.stringify(obj,null, new Boolean(true)), 'JSON.stringify(obj)');

test/built-ins/JSON/stringify/15.12.3-8-a-5.js

@@ -6,11 +6,8 @@ es5id: 15.12.3-8-a-5
 description: >
     JSON.stringify treats non-Number or String object space arguments
     the same as a missing space argument.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {a1: {b1: [1,2,3,4], b2: {c1: 1, c2: 2}},a2: 'a2'};
-  return JSON.stringify(obj)=== JSON.stringify(obj,null, obj);
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify(obj), JSON.stringify(obj,null, obj), 'JSON.stringify(obj)');

test/built-ins/JSON/stringify/15.12.3_2-2-b-i-1.js

@@ -6,14 +6,11 @@ es5id: 15.12.3_2-2-b-i-1
 description: >
     JSON.stringify converts string wrapper objects returned from a
     toJSON call to literal strings.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {
     prop:42,
     toJSON: function () {return 'fortytwo objects'}
     };
-  return JSON.stringify([obj]) === '["fortytwo objects"]';
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify([obj]), '["fortytwo objects"]', 'JSON.stringify([obj])');

test/built-ins/JSON/stringify/15.12.3_2-2-b-i-2.js

@@ -6,14 +6,11 @@ es5id: 15.12.3_2-2-b-i-2
 description: >
     JSON.stringify converts Number wrapper objects returned from a
     toJSON call to literal Number.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {
     prop:42,
     toJSON: function () {return new Number(42)}
     };
-  return JSON.stringify([obj]) === '[42]';
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify([obj]), '[42]', 'JSON.stringify([obj])');

test/built-ins/JSON/stringify/15.12.3_2-2-b-i-3.js

@@ -6,14 +6,11 @@ es5id: 15.12.3_2-2-b-i-3
 description: >
     JSON.stringify converts Boolean wrapper objects returned from a
     toJSON call to literal Boolean values.
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   var obj = {
     prop:42,
     toJSON: function () {return new Boolean(true)}
     };
-  return JSON.stringify([obj]) === '[true]';
-  }
-runTestCase(testcase);
+
+assert.sameValue(JSON.stringify([obj]), '[true]', 'JSON.stringify([obj])');