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-rw-r--r--js/src/tests/js1_5/Array/regress-315509-01.js28
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Array/regress-315509-01.js b/js/src/tests/js1_5/Array/regress-315509-01.js
new file mode 100644
index 000000000..7d29c5946
--- /dev/null
+++ b/js/src/tests/js1_5/Array/regress-315509-01.js
@@ -0,0 +1,28 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 315509;
+var summary = 'Array.prototype.unshift on Arrays with holes';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var a = [0,1,2,3,4];
+delete a[1];
+
+expect = '0,,2,3,4';
+actual = a.toString();
+
+reportCompare(expect, actual, summary);
+
+a.unshift('a','b');
+
+expect = 'a,b,0,,2,3,4';
+actual = a.toString();
+
+reportCompare(expect, actual, summary);