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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/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.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/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js b/js/src/tests/test262/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js new file mode 100644 index 0000000000..4f9639ac4a --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/fromEntries/iterator-closed-for-string-entry.js @@ -0,0 +1,59 @@ +// Copyright (C) 2018 Kevin Gibbons. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-object.fromentries +description: Closes iterators when they return entries which are strings. +info: | + Object.fromEntries ( iterable ) + + ... + 4. Let stepsDefine be the algorithm steps defined in CreateDataPropertyOnObject Functions. + 5. Let adder be CreateBuiltinFunction(stepsDefine, « »). + 6. Return ? AddEntriesFromIterable(obj, iterable, adder). + + AddEntriesFromIterable ( target, iterable, adder ) + + ... + 4. Repeat, + ... + d. If Type(nextItem) is not Object, then + i. Let error be ThrowCompletion(a newly created TypeError object). + ii. Return ? IteratorClose(iteratorRecord, error). + +features: [Symbol.iterator, Object.fromEntries] +---*/ + +var returned = false; +var iterable = { + [Symbol.iterator]: function() { + var advanced = false; + return { + next: function() { + if (advanced) { + throw new Test262Error('should only advance once'); + } + advanced = true; + return { + done: false, + value: 'ab', + }; + }, + return: function() { + if (returned) { + throw new Test262Error('should only return once'); + } + returned = true; + }, + }; + }, +}; + +assert.sameValue(typeof Object.fromEntries, 'function'); +assert.throws(TypeError, function() { + Object.fromEntries(iterable); +}); + +assert(returned, 'iterator should be closed when entry is a string'); + +reportCompare(0, 0); |