1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/S15.4_A1.1_T5.js b/js/src/tests/test262/built-ins/Array/S15.4_A1.1_T5.js
new file mode 100644
index 0000000000..eced3ea7c4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/S15.4_A1.1_T5.js
@@ -0,0 +1,22 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    A property name P (in the form of a string value) is an array index
+    if and only if ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal to 2^32 - 1
+es5id: 15.4_A1.1_T5
+description: Checking for null and undefined
+---*/
+
+var x = [];
+x[null] = 0;
+assert.sameValue(x[0], undefined, 'The value of x[0] is expected to equal undefined');
+assert.sameValue(x["null"], 0, 'The value of x["null"] is expected to be 0');
+
+var y = [];
+y[undefined] = 0;
+assert.sameValue(y[0], undefined, 'The value of y[0] is expected to equal undefined');
+assert.sameValue(y["undefined"], 0, 'The value of y["undefined"] is expected to be 0');
+
+reportCompare(0, 0);