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

test/built-ins/Infinity/15.1.1.2-0.js

@@ -6,17 +6,11 @@ es5id: 15.1.1.2-0
 description: >
     Global.Infinity is a data property with default attribute values
     (false)
-includes:
-    - runTestCase.js
-    - fnGlobalObject.js
+includes: [fnGlobalObject.js]
 ---*/
 
-function testcase() {
     var desc = Object.getOwnPropertyDescriptor(fnGlobalObject(), 'Infinity');
-  if (desc.writable === false &&
-      desc.enumerable === false &&
-      desc.configurable === false) {
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(desc.writable, false, 'desc.writable');
+assert.sameValue(desc.enumerable, false, 'desc.enumerable');
+assert.sameValue(desc.configurable, false, 'desc.configurable');

test/built-ins/NaN/15.1.1.1-0.js

@@ -4,17 +4,11 @@
 /*---
 es5id: 15.1.1.1-0
 description: Global.NaN is a data property with default attribute values (false)
-includes:
-    - runTestCase.js
-    - fnGlobalObject.js
+includes: [fnGlobalObject.js]
 ---*/
 
-function testcase() {
     var desc = Object.getOwnPropertyDescriptor(fnGlobalObject(), 'NaN');
-  if (desc.writable === false &&
-      desc.enumerable === false &&
-      desc.configurable === false) {
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(desc.writable, false, 'desc.writable');
+assert.sameValue(desc.enumerable, false, 'desc.enumerable');
+assert.sameValue(desc.configurable, false, 'desc.configurable');

test/built-ins/undefined/15.1.1.3-0.js

@@ -6,17 +6,11 @@ es5id: 15.1.1.3-0
 description: >
     Global.undefined is a data property with default attribute values
     (false)
-includes:
-    - runTestCase.js
-    - fnGlobalObject.js
+includes: [fnGlobalObject.js]
 ---*/
 
-function testcase() {
     var desc = Object.getOwnPropertyDescriptor(fnGlobalObject(), 'undefined');
-  if (desc.writable === false &&
-      desc.enumerable === false &&
-      desc.configurable === false) {
-    return true;
-  }
- }
-runTestCase(testcase);
+
+assert.sameValue(desc.writable, false, 'desc.writable');
+assert.sameValue(desc.enumerable, false, 'desc.enumerable');
+assert.sameValue(desc.configurable, false, 'desc.configurable');

test/built-ins/undefined/15.1.1.3-3.js

@@ -7,12 +7,8 @@ description: >
     undefined is not writable, simple assignment should return the
     rval value (11.13.1-6)
 flags: [noStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase(){
   var newProperty = undefined = 42;
-  return (newProperty === 42);
-}
 
-runTestCase(testcase);
+assert.sameValue(newProperty, 42, 'newProperty');