1 files changed, 3 insertions, 9 deletions
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-258-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-258-1.js
index 0d2215471..0b250f10f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-258-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-258-1.js
@@ -7,13 +7,11 @@ description: >
     Object.defineProperty - 'Attributes' is an Arguments object which
     implements its own [[Get]] method to access the 'set' property of
     prototype object (8.10.5 step 8.a)
-includes: [runTestCase.js]
 ---*/
 
-function testcase() {
         var obj = {};
         var data = "data";
-        try {
+
             Object.prototype.set = function (value) {
                 data = value;
             };
@@ -22,9 +20,5 @@ function testcase() {
             Object.defineProperty(obj, "property", argObj);
             obj.property = "overrideData";
 
-            return obj.hasOwnProperty("property") && data === "overrideData";
-        } finally {
-            delete Object.prototype.set;
-        }
-    }
-runTestCase(testcase);
+assert(obj.hasOwnProperty("property"), 'obj.hasOwnProperty("property") !== true');
+assert.sameValue(data, "overrideData", 'data');