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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/splice/create-species.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/splice/create-species.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/splice/create-species.js b/js/src/tests/test262/built-ins/Array/prototype/splice/create-species.js new file mode 100644 index 0000000000..c6ea6483a9 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/splice/create-species.js @@ -0,0 +1,45 @@ +// 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: Species constructor is used to create a new instance +info: | + [...] + 9. Let A be ? ArraySpeciesCreate(O, actualDeleteCount). + [...] + + 9.4.2.3 ArraySpeciesCreate + + [...] + 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 thisValue, args, result; +var callCount = 0; +var instance = []; +var Ctor = function() { + callCount += 1; + thisValue = this; + args = arguments; + return instance; +}; +var a = [1, 2, 3, 4, 5]; +a.constructor = {}; +a.constructor[Symbol.species] = Ctor; + +result = a.splice(2); + +assert.sameValue(callCount, 1, 'Constructor invoked exactly once'); +assert.sameValue(Object.getPrototypeOf(thisValue), Ctor.prototype); +assert.sameValue(args.length, 1, 'Constructor invoked with a single argument'); +assert.sameValue(args[0], 3); +assert.sameValue(result, instance); + +reportCompare(0, 0); |