diff options
Diffstat (limited to 'deps/v8/test/mjsunit/es6/set-iterator-8.js')
-rw-r--r-- | deps/v8/test/mjsunit/es6/set-iterator-8.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/es6/set-iterator-8.js b/deps/v8/test/mjsunit/es6/set-iterator-8.js new file mode 100644 index 0000000000..2328a7b737 --- /dev/null +++ b/deps/v8/test/mjsunit/es6/set-iterator-8.js @@ -0,0 +1,31 @@ +// Copyright 2018 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Flags: --allow-natives-syntax --no-stress-opt + +// This tests the interaction between the MapIterator protector and SetIterator +// protector. + +var map = new Map([[1,2], [2,3], [3,4]]); +assertTrue(%MapIteratorProtector()); + +var set = new Set([1,2,3]); +assertTrue(%SetIteratorProtector()); + +// This changes %SetIteratorPrototype%. No more tests should be run after this +// in the same instance. +var iterator = set.keys(); +iterator.__proto__[Symbol.iterator] = () => ({next: () => ({done: true})}); + +assertFalse(%MapIteratorProtector()); +assertEquals([[1,2], [2,3], [3,4]], [...map]); +assertEquals([[1,2], [2,3], [3,4]], [...map.entries()]); +assertEquals([1,2,3], [...map.keys()]); +assertEquals([2,3,4], [...map.values()]); + +assertFalse(%SetIteratorProtector()); +assertEquals([], [...set.entries()]); +assertEquals([1,2,3], [...set]); +assertEquals([], [...set.keys()]); +assertEquals([], [...set.values()]); |