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Diffstat (limited to 'js/src/tests/test262/built-ins/Iterator/prototype/filter/predicate-throws-then-closing-iterator-also-throws.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Iterator/prototype/filter/predicate-throws-then-closing-iterator-also-throws.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Iterator/prototype/filter/predicate-throws-then-closing-iterator-also-throws.js b/js/src/tests/test262/built-ins/Iterator/prototype/filter/predicate-throws-then-closing-iterator-also-throws.js new file mode 100644 index 0000000000..61ffe5eba0 --- /dev/null +++ b/js/src/tests/test262/built-ins/Iterator/prototype/filter/predicate-throws-then-closing-iterator-also-throws.js @@ -0,0 +1,43 @@ +// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options +// Copyright (C) 2023 Michael Ficarra. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-iteratorprototype.filter +description: > + Attempts to close iterator when predicate throws, but that throws +info: | + %Iterator.prototype%.filter ( predicate ) + + 3.b.v. IfAbruptCloseIterator(selected, iterated). + +features: [iterator-helpers] +flags: [] +---*/ +let returnCalls = 0; + +class TestIterator extends Iterator { + next() { + return { + done: false, + value: 1, + }; + } + return() { + ++returnCalls; + throw new Error(); + } +} + +let iterator = new TestIterator().filter(() => { + throw new Test262Error(); +}); + +assert.sameValue(returnCalls, 0); + +assert.throws(Test262Error, function () { + iterator.next(); +}); + +assert.sameValue(returnCalls, 1); + +reportCompare(0, 0); |