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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor.js b/js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor.js new file mode 100644 index 0000000000..28922e7062 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/from/iter-cstm-ctor.js @@ -0,0 +1,50 @@ +// 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.from +description: Creating object with custom constructor (traversed via iterator) +info: | + [...] + 6. If usingIterator is not undefined, then + a. If IsConstructor(C) is true, then + i. Let A be Construct(C). + b. Else, + i. Let A be ArrayCreate(0). + c. ReturnIfAbrupt(A). +features: [Symbol.iterator] +---*/ + +var thisVal, args; +var callCount = 0; +var C = function() { + thisVal = this; + args = arguments; + callCount += 1; +}; +var result; +var items = {}; +items[Symbol.iterator] = function() { + return { + next: function() { + return { + done: true + }; + } + }; +}; + +result = Array.from.call(C, items); + +assert( + result instanceof C, 'The result of evaluating (result instanceof C) is expected to be true' +); +assert.sameValue( + result.constructor, + C, + 'The value of result.constructor is expected to equal the value of C' +); +assert.sameValue(callCount, 1, 'The value of callCount is expected to be 1'); +assert.sameValue(thisVal, result, 'The value of thisVal is expected to equal the value of result'); +assert.sameValue(args.length, 0, 'The value of args.length is expected to be 0'); + +reportCompare(0, 0); |