diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/set-expand-contract.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/set-expand-contract.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/set-expand-contract.js b/js/src/tests/test262/language/statements/for-of/set-expand-contract.js new file mode 100644 index 0000000000..29264dde6f --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/set-expand-contract.js @@ -0,0 +1,29 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: Set entry insertion and removal during traversal using for..of +info: | + New entries inserted into a Set instance during traversal should not be + visited if they are removed prior to visitation. +es6id: 13.6.4 +features: [Set] +---*/ + +var set = new Set(); +var iterationCount = 0; + +set.add(0); + +for (var x of set) { + assert.sameValue(x, 0); + + set.add(1); + set.delete(1); + + iterationCount += 1; +} + +assert.sameValue(iterationCount, 1); + +reportCompare(0, 0); |