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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/ArrayIteratorPrototype/next/iteration-mutable.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/ArrayIteratorPrototype/next/iteration-mutable.js b/js/src/tests/test262/built-ins/ArrayIteratorPrototype/next/iteration-mutable.js new file mode 100644 index 0000000000..4e1160e4c3 --- /dev/null +++ b/js/src/tests/test262/built-ins/ArrayIteratorPrototype/next/iteration-mutable.js @@ -0,0 +1,36 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-%arrayiteratorprototype%.next +description: > + When an item is added to the array after the iterator is created but + before the iterator is "done" (as defined by 22.1.5.2.1), the new item + should be accessible via iteration. When an item is added to the array + after the iterator is "done", the new item should not be accessible via + iteration. +es6id: 22.1.3.30 +features: [Symbol.iterator] +---*/ + +var array = []; +var iterator = array[Symbol.iterator](); +var result; + +array.push('a'); + +result = iterator.next(); +assert.sameValue(result.done, false, 'First result `done` flag'); +assert.sameValue(result.value, 'a', 'First result `value`'); + +result = iterator.next(); +assert.sameValue(result.done, true, 'Exhausted result `done` flag'); +assert.sameValue(result.value, undefined, 'Exhausted result `value`'); + +array.push('b'); + +result = iterator.next(); +assert.sameValue(result.done, true, 'Exhausted result `done` flag (after push)'); +assert.sameValue(result.value, undefined, 'Exhausted result `value (after push)'); + +reportCompare(0, 0); |