1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/ch11/11.3/11.3.1/S11.3.1_A4_T4.js b/js/src/tests/test262/ch11/11.3/11.3.1/S11.3.1_A4_T4.js
new file mode 100644
index 000000000..cf703689d
--- /dev/null
+++ b/js/src/tests/test262/ch11/11.3/11.3.1/S11.3.1_A4_T4.js
@@ -0,0 +1,24 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Operator x++ returns ToNumber(x)
+ *
+ * @path ch11/11.3/11.3.1/S11.3.1_A4_T4.js
+ * @description Type(x) is undefined or null
+ */
+
+//CHECK#1
+var x;
+var y = x++;
+if (isNaN(y) !== true) {
+  $ERROR('#1: var x; var y = x++; y === Not-a-Number. Actual: ' + (y));
+}
+
+//CHECK#2
+var x = null;
+var y = x++;
+if (y !== 0) {
+  $ERROR('#2: var x = null; var y = x++; y === 0. Actual: ' + (y));
+}
+