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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/non262/Iterator/from/return-wrapper-if-not-iterable.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 '')
-rw-r--r-- | js/src/tests/non262/Iterator/from/return-wrapper-if-not-iterable.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/from/return-wrapper-if-not-iterable.js b/js/src/tests/non262/Iterator/from/return-wrapper-if-not-iterable.js new file mode 100644 index 0000000000..09b974f327 --- /dev/null +++ b/js/src/tests/non262/Iterator/from/return-wrapper-if-not-iterable.js @@ -0,0 +1,28 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally +/*--- + Iterator.from returns an iterator wrapper if O is not an iterable. +---*/ + +class TestIterator { + next() { + return { done: false, value: 0 }; + } +} + +const iter = new TestIterator(); +assertEq( + Symbol.iterator in iter, + false, + 'iter is not an iterable.' +); + +const wrapper = Iterator.from(iter); +assertEq(iter !== wrapper, true); +assertEq( + Symbol.iterator in wrapper, + true, + 'wrapper is an iterable.' +); + +if (typeof reportCompare === 'function') + reportCompare(0, 0); |