Add initial tests for the "iterator-sequencing" proposal #4326
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ljharb
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Nov 14, 2024
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Almost all of these tests pass verbatim on my polyfill, which is great!
I've commented the ones that don't - I assume they represent bugs in my polyfill, but I'll do a deep dive on the spec text to make sure.
update: one set of them was a bug that disappeared when i rewrote the implementation to match the spec text.
ljharb
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Nov 14, 2024
test/built-ins/Iterator/concat/throws-typeerror-when-generator-is-running-return.js
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test/built-ins/Iterator/concat/throws-typeerror-when-iterable-not-an-object.js
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| assert.sameValue(iterResult.done, false); | ||
| assert.sameValue(iterResult.value, 123); | ||
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| assert.notSameValue(iterResult, oldIterResult); |
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This seems unnecessarily wasteful. I've opened an issue to reconsider this behaviour: tc39/proposal-iterator-sequencing#17
michaelficarra
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Nov 19, 2024
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I pushed up a couple of commits. This LGTM now, modulo the normative question which we can resolve at the upcoming plenary. |
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…roposal. r=mgaudet Test PR: tc39/test262#4326 Differential Revision: https://phabricator.services.mozilla.com/D229014
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Tests are based on existing tests in "test/built-ins/Iterator".