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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-and-start.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-and-start.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-and-start.js b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-and-start.js new file mode 100644 index 0000000000..da1d411abc --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/copyWithin/non-negative-target-and-start.js @@ -0,0 +1,54 @@ +// 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 and start 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 + ... + 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( + ['a', 'b', 'c', 'd', 'e', 'f'].copyWithin(0, 0), + ['a', 'b', 'c', 'd', 'e', 'f'] +); + +assert.compareArray( + ['a', 'b', 'c', 'd', 'e', 'f'].copyWithin(0, 2), + ['c', 'd', 'e', 'f', 'e', 'f'] +); + +assert.compareArray( + ['a', 'b', 'c', 'd', 'e', 'f'].copyWithin(3, 0), + ['a', 'b', 'c', 'a', 'b', 'c'] +); + +assert.compareArray( + [0, 1, 2, 3, 4, 5].copyWithin(1, 4), + [0, 4, 5, 3, 4, 5] +); + +reportCompare(0, 0); |