diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A1_T5.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A1_T5.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,71 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * White Space and Line Terminator between LeftHandSideExpression and "@=" or between "@=" and AssignmentExpression are allowed
+ *
+ * @path ch11/11.13/11.13.2/S11.13.2_A1_T5.js
+ * @description Checking by using eval, check operator is x -= y
+ */
+
+//CHECK#1
+x = -1;
+if ((eval("x\u0009-=\u00091")) !== -2) {
+  $ERROR('#1: x = -1; (x\\u0009-=\\u00091) === -2');
+}
+
+//CHECK#2
+x = -1;
+if ((eval("x\u000B-=\u000B1")) !== -2) {
+  $ERROR('#2: x = -1; (x\\u000B-=\\u000B1) === -2');  
+}
+
+//CHECK#3
+x = -1;
+if ((eval("x\u000C-=\u000C1")) !== -2) {
+  $ERROR('#3: x = -1; (x\\u000C-=\\u000C1) === -2');
+}
+
+//CHECK#4
+x = -1;
+if ((eval("x\u0020-=\u00201")) !== -2) {
+  $ERROR('#4: x = -1; (x\\u0020-=\\u00201) === -2');
+}
+
+//CHECK#5
+x = -1;
+if ((eval("x\u00A0-=\u00A01")) !== -2) {
+  $ERROR('#5: x = -1; (x\\u00A0-=\\u00A01) === -2');
+}
+
+//CHECK#6
+x = -1;
+if ((eval("x\u000A-=\u000A1")) !== -2) {
+  $ERROR('#6: x = -1; (x\\u000A-=\\u000A1) === -2');  
+}
+
+//CHECK#7
+x = -1;
+if ((eval("x\u000D-=\u000D1")) !== -2) {
+  $ERROR('#7: x = -1; (x\\u000D-=\\u000D1) === -2');
+}
+
+//CHECK#8
+x = -1;
+if ((eval("x\u2028-=\u20281")) !== -2) {
+  $ERROR('#8: x = -1; (x\\u2028-=\\u20281) === -2');
+}
+
+//CHECK#9
+x = -1;
+if ((eval("x\u2029-=\u20291")) !== -2) {
+  $ERROR('#9: x = -1; (x\\u2029-=\\u20291) === -2');
+}
+
+
+//CHECK#10
+x = -1;
+if ((eval("x\u0009\u000B\u000C\u0020\u00A0\u000A\u000D\u2028\u2029-=\u0009\u000B\u000C\u0020\u00A0\u000A\u000D\u2028\u20291")) !== -2) {
+  $ERROR('#10: x = -1; (x\\u0009\\u000B\\u000C\\u0020\\u00A0\\u000A\\u000D\\u2028\\u2029-=\\u0009\\u000B\\u000C\\u0020\\u00A0\\u000A\\u000D\\u2028\\u20291) === -2');
+}
+