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diff --git a/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-start-and-end.js b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-start-and-end.js
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+++ b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-start-and-end.js
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+// 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: >
+ Copy values with non-negative target, start and end positions.
+info: |
+ 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
+
+ ...
+ 7. If relativeTarget < 0, let to be max((len + relativeTarget),0); else let to
+ be min(relativeTarget, len).
+ ...
+ 10. If relativeStart < 0, let from be max((len + relativeStart),0); else let
+ from be min(relativeStart, len).
+ 11. If end is undefined, let relativeEnd be len; else let relativeEnd be
+ ToInteger(end).
+ ...
+ 14. Let count be min(final-from, len-to).
+ 15. If from<to and to<from+count
+ a. Let direction be -1.
+ b. Let from be from + count -1.
+ c. Let to be to + count -1.
+ 16. Else,
+ a. Let direction = 1.
+ 17. Repeat, while count > 0
+ ...
+ a. If fromPresent is true, then
+ i. Let fromVal be Get(O, fromKey).
+ ...
+ iii. Let setStatus be Set(O, toKey, fromVal, true).
+ ...
+includes: [compareArray.js]
+---*/
+
+assert.compareArray(
+ [0, 1, 2, 3].copyWithin(0, 0, 0), [0, 1, 2, 3],
+ '[0, 1, 2, 3].copyWithin(0, 0, 0) must return [0, 1, 2, 3]'
+);
+
+assert.compareArray(
+ [0, 1, 2, 3].copyWithin(0, 0, 2), [0, 1, 2, 3],
+ '[0, 1, 2, 3].copyWithin(0, 0, 2) must return [0, 1, 2, 3]'
+);
+
+assert.compareArray(
+ [0, 1, 2, 3].copyWithin(0, 1, 2), [1, 1, 2, 3],
+ '[0, 1, 2, 3].copyWithin(0, 1, 2) must return [1, 1, 2, 3]'
+);
+
+/*
+ * 15. If from<to and to<from+count
+ * a. Let direction be -1.
+ * b. Let from be from + count -1.
+ * c. Let to be to + count -1.
+ *
+ * 0 < 1, 1 < 0 + 2
+ * direction = -1
+ * from = 0 + 2 - 1
+ * to = 1 + 2 - 1
+ */
+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, 4, 5].copyWithin(1, 3, 5), [0, 3, 4, 3, 4, 5],
+ '[0, 1, 2, 3, 4, 5].copyWithin(1, 3, 5) must return [0, 3, 4, 3, 4, 5]'
+);
+
+reportCompare(0, 0);