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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/splice/create-species-neg-zero.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/splice/create-species-neg-zero.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/splice/create-species-neg-zero.js b/js/src/tests/test262/built-ins/Array/prototype/splice/create-species-neg-zero.js new file mode 100644 index 0000000000..9974cc03ae --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/splice/create-species-neg-zero.js @@ -0,0 +1,51 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.prototype.splice +description: The value `-0` is converted to `0` +info: | + [...] + 3. Let relativeStart be ? ToInteger(start). + 4. If relativeStart < 0, let actualStart be max((len + relativeStart), 0); + else let actualStart be min(relativeStart, len). + 5. If the number of actual arguments is 0, then + [...] + 6. Else if the number of actual arguments is 1, then + [...] + 7. Else, + a. Let insertCount be the number of actual arguments minus 2. + b. Let dc be ? ToInteger(deleteCount). + c. Let actualDeleteCount be min(max(dc, 0), len - actualStart). + [...] + 9. Let A be ? ArraySpeciesCreate(O, actualDeleteCount). + [...] + + 9.4.2.3 ArraySpeciesCreate + + [...] + 2. If length is -0, let length be +0. + [...] + 5. Let C be ? Get(originalArray, "constructor"). + [...] + 7. If Type(C) is Object, then + a. Let C be ? Get(C, @@species). + b. If C is null, let C be undefined. + [...] + 10. Return ? Construct(C, « length »). +features: [Symbol.species] +---*/ + +var args; +var Ctor = function() { + args = arguments; +}; +var a = []; +a.constructor = {}; +a.constructor[Symbol.species] = Ctor; + +a.splice(0, -0); + +assert.sameValue(args.length, 1); +assert.sameValue(args[0], 0); + +reportCompare(0, 0); |