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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.js')
-rw-r--r-- | js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.js b/js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.js new file mode 100644 index 0000000000..675d73b01e --- /dev/null +++ b/js/src/tests/test262/language/statements/for-of/iterator-close-via-throw.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. +/*--- +es6id: 13.6.4.13 +description: > + Iterators should be closed via their `return` method when iteration is + interrupted via a `throw` statement. +features: [Symbol.iterator] +---*/ + +var startedCount = 0; +var returnCount = 0; +var iterationCount = 0; +var iterable = {}; + +iterable[Symbol.iterator] = function() { + return { + next: function() { + startedCount += 1; + return { done: false, value: null }; + }, + return: function() { + returnCount += 1; + return {}; + } + }; +}; + +try { + for (var x of iterable) { + assert.sameValue( + startedCount, 1, 'Value is retrieved' + ); + assert.sameValue( + returnCount, 0, 'Iterator is not closed' + ); + iterationCount += 1; + throw 0; + } +} catch (err) {} + +assert.sameValue( + startedCount, 1, 'Iterator does not restart following interruption' +); +assert.sameValue(iterationCount, 1, 'A single iteration occurs'); +assert.sameValue( + returnCount, 1, 'Iterator is closed after `throw` statement' +); + +reportCompare(0, 0); |