JSTests/test262/test/built-ins/Array/prototype/copyWithin/negative-out-of-bounds-target.js

// 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: >
  Set values with out of bounds negative target argument.
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).
  ...
includes: [compareArray.js]
---*/

assert(
  compareArray(
    [0, 1, 2, 3].copyWithin(-10, 0), [0, 1, 2, 3]
  ),
  '[0, 1, 2, 3].copyWithin(-10, 0) -> [0, 1, 2, 3]'
);

assert(
  compareArray(
    [1, 2, 3, 4, 5].copyWithin(-Infinity, 0), [1, 2, 3, 4, 5]
  ),
  '[1, 2, 3, 4, 5].copyWithin(-Infinity, 0) -> [1, 2, 3, 4, 5]'
);

assert(
  compareArray(
    [0, 1, 2, 3, 4].copyWithin(-10, 2), [2, 3, 4, 3, 4]
  ),
  '[0, 1, 2, 3, 4].copyWithin(-10, 2) -> [2, 3, 4, 3, 4]'
);

assert(
  compareArray(
    [1, 2, 3, 4, 5].copyWithin(-Infinity, 2), [3, 4, 5, 4, 5]
  ),
  '[1, 2, 3, 4, 5].copyWithin(-Infinity, 2) -> [3, 4, 5, 4, 5]'
);