diff --git a/test/language/arguments-object/10.5-7-b-2-s.js b/test/language/arguments-object/10.5-7-b-2-s.js
index 0638b335e2..18aaa125d3 100644
--- a/test/language/arguments-object/10.5-7-b-2-s.js
+++ b/test/language/arguments-object/10.5-7-b-2-s.js
@@ -4,15 +4,11 @@
 /*---
 es5id: 10.5-7-b-2-s
 description: Arguments object index assignment is allowed
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         function _10_5_7_b_2_fun() {
             arguments[7] = 12;
             return arguments[7] === 12;
         };
 
-        return _10_5_7_b_2_fun(30);
-    }
-runTestCase(testcase);
+assert(_10_5_7_b_2_fun(30), '_10_5_7_b_2_fun(30) !== true');
diff --git a/test/language/arguments-object/10.5-7-b-3-s.js b/test/language/arguments-object/10.5-7-b-3-s.js
index d6a1986766..b39837a664 100644
--- a/test/language/arguments-object/10.5-7-b-3-s.js
+++ b/test/language/arguments-object/10.5-7-b-3-s.js
@@ -5,15 +5,11 @@
 es5id: 10.5-7-b-3-s
 description: >
     Adding property to the arguments object successful under strict mode
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         function _10_5_7_b_3_fun() {
             arguments[1] = 12;
             return arguments[0] === 30 && arguments[1] === 12;
         };
 
-        return _10_5_7_b_3_fun(30);
-    }
-runTestCase(testcase);
+assert(_10_5_7_b_3_fun(30), '_10_5_7_b_3_fun(30) !== true');
diff --git a/test/language/arguments-object/10.5-7-b-4-s.js b/test/language/arguments-object/10.5-7-b-4-s.js
index 98aa38b5ac..4e2495a42b 100644
--- a/test/language/arguments-object/10.5-7-b-4-s.js
+++ b/test/language/arguments-object/10.5-7-b-4-s.js
@@ -5,16 +5,13 @@
 es5id: 10.5-7-b-4-s
 description: >
     Deleting property of the arguments object successful under strict mode
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         function _10_5_7_b_4_fun() {
             var _10_5_7_b_4_1 = arguments[0] === 30 && arguments[1] === 12;
             delete arguments[1];
             var _10_5_7_b_4_2 = arguments[0] === 30 && typeof arguments[1] === "undefined";
             return _10_5_7_b_4_1 && _10_5_7_b_4_2;
         };
-        return _10_5_7_b_4_fun(30, 12);
-    }
-runTestCase(testcase);
+
+assert(_10_5_7_b_4_fun(30, 12), '_10_5_7_b_4_fun(30, 12) !== true');
diff --git a/test/language/arguments-object/10.6-10-c-ii-1-s.js b/test/language/arguments-object/10.6-10-c-ii-1-s.js
index 9b4e241f07..983124a1c6 100644
--- a/test/language/arguments-object/10.6-10-c-ii-1-s.js
+++ b/test/language/arguments-object/10.6-10-c-ii-1-s.js
@@ -7,15 +7,12 @@ description: >
     arguments[i] remains same after changing actual parameters in
     strict mode
 flags: [onlyStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   function foo(a,b,c)
   {
     a = 1; b = 'str'; c = 2.1;
     return (arguments[0] === 10 && arguments[1] === 'sss' && arguments[2] === 1);
   }
-  return foo(10, 'sss', 1);
- }
-runTestCase(testcase);
+
+assert(foo(10, 'sss', 1), 'foo(10, "sss", 1) !== true');
diff --git a/test/language/arguments-object/10.6-10-c-ii-1.js b/test/language/arguments-object/10.6-10-c-ii-1.js
index 3b43e1eaa1..7c03bb15d4 100644
--- a/test/language/arguments-object/10.6-10-c-ii-1.js
+++ b/test/language/arguments-object/10.6-10-c-ii-1.js
@@ -5,16 +5,13 @@
 es5id: 10.6-10-c-ii-1
 description: arguments[i] change with actual parameters
 flags: [noStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
   function foo(a,b,c)
   {
     a = 1; b = 'str'; c = 2.1;
     if(arguments[0] === 1 && arguments[1] === 'str' && arguments[2] === 2.1)
       return true;   
   }
-  return foo(10,'sss',1);
- }
-runTestCase(testcase);
+
+assert(foo(10,'sss',1), 'foo(10,"sss",1) !== true');
diff --git a/test/language/arguments-object/10.6-10-c-ii-2-s.js b/test/language/arguments-object/10.6-10-c-ii-2-s.js
index 8e72ac84aa..4fee9daff6 100644
--- a/test/language/arguments-object/10.6-10-c-ii-2-s.js
+++ b/test/language/arguments-object/10.6-10-c-ii-2-s.js
@@ -5,16 +5,12 @@
 es5id: 10.6-10-c-ii-2-s
 description: arguments[i] doesn't map to actual parameters in strict mode
 flags: [onlyStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-  
   function foo(a,b,c)
   {
     arguments[0] = 1; arguments[1] = 'str'; arguments[2] = 2.1;
     return 10 === a && 'sss' === b && 1 === c;
   }
-  return foo(10,'sss',1);
- }
-runTestCase(testcase);
+
+assert(foo(10,'sss',1), 'foo(10,"sss",1) !== true');
diff --git a/test/language/arguments-object/10.6-10-c-ii-2.js b/test/language/arguments-object/10.6-10-c-ii-2.js
index 4a60277f14..961801958e 100644
--- a/test/language/arguments-object/10.6-10-c-ii-2.js
+++ b/test/language/arguments-object/10.6-10-c-ii-2.js
@@ -5,17 +5,13 @@
 es5id: 10.6-10-c-ii-2
 description: arguments[i] map to actual parameter
 flags: [noStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
-  
   function foo(a,b,c)
   {
     arguments[0] = 1; arguments[1] = 'str'; arguments[2] = 2.1;
     if(1 === a && 'str' === b && 2.1 === c)
       return true;   
   }
-  return foo(10,'sss',1);
- }
-runTestCase(testcase);
+
+assert(foo(10,'sss',1), 'foo(10,"sss",1) !== true');
diff --git a/test/language/arguments-object/10.6-13-a-2.js b/test/language/arguments-object/10.6-13-a-2.js
index 03509c8d86..da803ecffb 100644
--- a/test/language/arguments-object/10.6-13-a-2.js
+++ b/test/language/arguments-object/10.6-13-a-2.js
@@ -5,10 +5,8 @@
 es5id: 10.6-13-a-2
 description: A direct call to arguments.callee.caller should work
 flags: [noStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
     var called = false;
     
     function test1(flag) {
@@ -28,7 +26,5 @@ function testcase() {
     }
     
     test1();
-    return called;   
-}
 
-runTestCase(testcase);
+assert(called, 'called !== true');
diff --git a/test/language/arguments-object/10.6-13-a-3.js b/test/language/arguments-object/10.6-13-a-3.js
index 25b528b820..4ed593ea67 100644
--- a/test/language/arguments-object/10.6-13-a-3.js
+++ b/test/language/arguments-object/10.6-13-a-3.js
@@ -5,10 +5,8 @@
 es5id: 10.6-13-a-3
 description: An indirect call to arguments.callee.caller should work
 flags: [noStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
     var called = false;
     
     function test1(flag) {
@@ -29,7 +27,5 @@ function testcase() {
     }
     
     test1();
-    return called;   
-}
 
-runTestCase(testcase);
+assert(called, 'called !== true');
diff --git a/test/language/arguments-object/10.6-14-1-s.js b/test/language/arguments-object/10.6-14-1-s.js
index f85ddafc63..3056e4ed64 100644
--- a/test/language/arguments-object/10.6-14-1-s.js
+++ b/test/language/arguments-object/10.6-14-1-s.js
@@ -5,13 +5,11 @@
 es5id: 10.6-14-1-s
 description: Strict Mode - 'callee' exists and 'caller' exists under strict mode
 flags: [onlyStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         var argObj = function () {
             return arguments;
         } ();
-        return argObj.hasOwnProperty("callee") && argObj.hasOwnProperty("caller");
-    }
-runTestCase(testcase);
+
+assert(argObj.hasOwnProperty("callee"), 'argObj.hasOwnProperty("callee") !== true');
+assert(argObj.hasOwnProperty("caller"), 'argObj.hasOwnProperty("caller") !== true');
diff --git a/test/language/arguments-object/10.6-14-b-1-s.js b/test/language/arguments-object/10.6-14-b-1-s.js
index 11a8bd36e5..fa13bbcbfd 100644
--- a/test/language/arguments-object/10.6-14-b-1-s.js
+++ b/test/language/arguments-object/10.6-14-b-1-s.js
@@ -7,10 +7,8 @@ description: >
     Strict Mode - [[Enumerable]] attribute value in 'caller' is false
     under strict mode
 flags: [onlyStrict]
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         var argObj = function () {
             return arguments;
         } ();
@@ -21,6 +19,6 @@ function testcase() {
                 verifyEnumerable = true;
             }
         }
-        return !verifyEnumerable && argObj.hasOwnProperty("caller");
-    }
-runTestCase(testcase);
+
+assert.sameValue(verifyEnumerable, false, 'verifyEnumerable');
+assert(argObj.hasOwnProperty("caller"), 'argObj.hasOwnProperty("caller") !== true');
diff --git a/test/language/arguments-object/10.6-14-c-1-s.js b/test/language/arguments-object/10.6-14-c-1-s.js
index 8a3e369548..e25dd40127 100644
--- a/test/language/arguments-object/10.6-14-c-1-s.js
+++ b/test/language/arguments-object/10.6-14-c-1-s.js
@@ -5,10 +5,8 @@
 es5id: 10.6-14-c-1-s
 description: >
     [[Enumerable]] attribute value in 'callee' is false
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         var argObj = function () {
             return arguments;
         } ();
@@ -19,6 +17,6 @@ function testcase() {
                 verifyEnumerable = true;
             }
         }
-        return !verifyEnumerable && argObj.hasOwnProperty("callee");
-    }
-runTestCase(testcase);
+
+assert.sameValue(verifyEnumerable, false, 'verifyEnumerable');
+assert(argObj.hasOwnProperty("callee"), 'argObj.hasOwnProperty("callee") !== true');