1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/copyWithin/coerced-values-end.js b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/coerced-values-end.js
new file mode 100644
index 0000000000..7759eea41d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/coerced-values-end.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.copywithin
+description: >
+  end argument is coerced to an integer values.
+info: |
+  22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
+
+  ...
+  11. If end is undefined, let relativeEnd be len; else let relativeEnd be
+  ToInteger(end).
+  ...
+includes: [compareArray.js]
+---*/
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, null), [0, 1, 2, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, null) must return [0, 1, 2, 3]'
+);
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, NaN), [0, 1, 2, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, NaN) must return [0, 1, 2, 3]'
+);
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, false), [0, 1, 2, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, false) must return [0, 1, 2, 3]'
+);
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, true), [0, 0, 2, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, true) must return [0, 0, 2, 3]'
+);
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, '-2'), [0, 0, 1, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, "-2") must return [0, 0, 1, 3]'
+);
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin(1, 0, -2.5), [0, 0, 1, 3],
+  '[0, 1, 2, 3].copyWithin(1, 0, -2.5) must return [0, 0, 1, 3]'
+);
+
+reportCompare(0, 0);