1 files changed, 80 insertions, 0 deletions
diff --git a/js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A4.5_T2.2.js b/js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A4.5_T2.2.js
new file mode 100644
index 000000000..e71788b75
--- /dev/null
+++ b/js/src/tests/test262/ch11/11.13/11.13.2/S11.13.2_A4.5_T2.2.js
@@ -0,0 +1,80 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * The production x -= y is the same as x = x - y
+ *
+ * @path ch11/11.13/11.13.2/S11.13.2_A4.5_T2.2.js
+ * @description Type(x) is different from Type(y) and both types vary between Number (primitive or object) and String (primitive and object)
+ */
+
+//CHECK#1
+x = "1";
+x -= 1;
+if (x !== 0) {
+  $ERROR('#1: x = "1"; x -= 1; x === 0. Actual: ' + (x));
+}
+
+//CHECK#2
+x = 1;
+x -= "1";
+if (x !== 0) {
+  $ERROR('#2: x = 1; x -= "1"; x === 0. Actual: ' + (x));
+}
+
+//CHECK#3
+x = new String("1");
+x -= 1;
+if (x !== 0) {
+  $ERROR('#3: x = new String("1"); x -= 1; x === 0. Actual: ' + (x));
+}
+
+//CHECK#4
+x = 1;
+x -= new String("1");
+if (x !== 0) {
+  $ERROR('#4: x = 1; x -= new String("1"); x === 0. Actual: ' + (x));
+}
+
+//CHECK#5
+x = "1";
+x -= new Number(1);
+if (x !== 0) {
+  $ERROR('#5: x = "1"; x -= new Number(1); x === 0. Actual: ' + (x));
+}
+
+//CHECK#6
+x = new Number(1);
+x -= "1";
+if (x !== 0) {
+  $ERROR('#6: x = new Number(1); x -= "1"; x === 0. Actual: ' + (x));
+}
+
+//CHECK#7
+x = new String("1");
+x -= new Number(1);
+if (x !== 0) {
+  $ERROR('#7: x = new String("1"); x -= new Number(1); x === 0. Actual: ' + (x));
+}
+
+//CHECK#8
+x = new Number(1);
+x -= new String("1");
+if (x !== 0) {
+  $ERROR('#8: x = new Number(1); x -= new String("1"); x === 0. Actual: ' + (x));
+}
+
+//CHECK#9
+x = "x";
+x -= 1;
+if (isNaN(x) !== true) {
+  $ERROR('#9: x = "x"; x -= 1; x === Not-a-Number. Actual: ' + (x));
+}
+
+//CHECK#10
+x = 1;
+x -= "x";
+if (isNaN(x) !== true) {
+  $ERROR('#10: x = 1; x -= "x"; x === Not-a-Number. Actual: ' + (x));
+}
+