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-rw-r--r--js/src/tests/test262/built-ins/Array/prototype/filter/create-species.js45
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/filter/create-species.js b/js/src/tests/test262/built-ins/Array/prototype/filter/create-species.js
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+++ b/js/src/tests/test262/built-ins/Array/prototype/filter/create-species.js
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+// 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.filter
+description: Species constructor is used to create a new instance
+info: |
+ [...]
+ 5. Let A be ? ArraySpeciesCreate(O, 0).
+ [...]
+
+ 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, 6, 7];
+a.constructor = {};
+a.constructor[Symbol.species] = Ctor;
+
+result = a.filter(function() {});
+
+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], 0);
+assert.sameValue(result, instance);
+
+reportCompare(0, 0);