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-rw-r--r--js/src/tests/non262/Array/unshift-01.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/unshift-01.js b/js/src/tests/non262/Array/unshift-01.js
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+++ b/js/src/tests/non262/Array/unshift-01.js
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+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 614070;
+var summary = 'Array.prototype.unshift without args';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+// ES6 ToLength clamps length values to 2^53 - 1.
+var MAX_LENGTH = 2**53 - 1;
+
+var a = {};
+a.length = MAX_LENGTH + 1;
+assertEq([].unshift.call(a), MAX_LENGTH);
+assertEq(a.length, MAX_LENGTH);
+
+function testGetSet(len, expected) {
+ var newlen;
+ var a = { get length() { return len; }, set length(v) { newlen = v; } };
+ var res = [].unshift.call(a);
+ assertEq(res, expected);
+ assertEq(newlen, expected);
+}
+
+testGetSet(0, 0);
+testGetSet(10, 10);
+testGetSet("1", 1);
+testGetSet(null, 0);
+testGetSet(MAX_LENGTH + 2, MAX_LENGTH);
+testGetSet(-5, 0);
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
+
+print("All tests passed!");