diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/from/iter-set-length-err.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/from/iter-set-length-err.js | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/from/iter-set-length-err.js b/js/src/tests/test262/built-ins/Array/from/iter-set-length-err.js new file mode 100644 index 0000000000..215ca22e1e --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/from/iter-set-length-err.js @@ -0,0 +1,39 @@ +// 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: Error setting length of object (traversed via iterator) +info: | + [...] + 6. If usingIterator is not undefined, then + [...] + g. Repeat + [...] + iv. If next is false, then + 1. Let setStatus be Set(A, "length", k, true). + 2. ReturnIfAbrupt(setStatus). +features: [Symbol.iterator] +---*/ + +var poisonedPrototypeLength = function() {}; +var items = {}; +Object.defineProperty(poisonedPrototypeLength.prototype, 'length', { + set: function(_) { + throw new Test262Error(); + } +}); +items[Symbol.iterator] = function() { + return { + next: function() { + return { + done: true + }; + } + }; +}; + +assert.throws(Test262Error, function() { + Array.from.call(poisonedPrototypeLength, items); +}, 'Array.from.call(poisonedPrototypeLength, items) throws a Test262Error exception'); + +reportCompare(0, 0); |