1 files changed, 43 insertions, 0 deletions
diff --git a/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-7.js b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-7.js
new file mode 100644
index 000000000..164b15c67
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+++ b/test/suite/ietestcenter/chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-7.js
@@ -0,0 +1,43 @@
+/// Copyright (c) 2009 Microsoft Corporation 
+/// 
+/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
+/// that the following conditions are met: 
+///    * Redistributions of source code must retain the above copyright notice, this list of conditions and
+///      the following disclaimer. 
+///    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
+///      the following disclaimer in the documentation and/or other materials provided with the distribution.  
+///    * Neither the name of Microsoft nor the names of its contributors may be used to
+///      endorse or promote products derived from this software without specific prior written permission.
+/// 
+/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+/// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+/// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+/// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+/// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+/// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+/// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+ES5Harness.registerTest({
+    id: "15.4.4.21-9-7",
+
+    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.21/15.4.4.21-9-7.js",
+
+    description: "Array.prototype.reduce stops calling callbackfn once the array is deleted during the call",
+
+    test: function testcase() {
+        function callbackfn(prevVal, curVal, idx, obj) {
+            delete o.arr;
+            return prevVal + curVal;
+        }
+
+        var o = new Object();
+        o.arr = ['1', 2, 3, 4, 5];
+        return o.arr.reduce(callbackfn) === "12345" && !o.hasOwnProperty("arr");
+    },
+
+    precondition: function prereq() {
+        return fnExists(Array.prototype.reduce);
+    }
+});