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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/AsyncIterator/prototype/take-drop-throw-eagerly-on-negative.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/take-drop-throw-eagerly-on-negative.js b/js/src/tests/non262/AsyncIterator/prototype/take-drop-throw-eagerly-on-negative.js new file mode 100644 index 0000000000..f21c78e650 --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/take-drop-throw-eagerly-on-negative.js @@ -0,0 +1,30 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) + +// +// +/*--- +esid: pending +description: `take` and `drop` throw eagerly when passed negative numbers, after rounding towards 0. +info: > + Iterator Helpers proposal 2.1.6.4 and 2.1.6.5 +features: [iterator-helpers] +---*/ + +async function* gen() {} +const iter = gen(); +const methods = [ + value => iter.take(value), + value => iter.drop(value), +]; + +for (const method of methods) { + assertThrowsInstanceOf(() => method(-1), RangeError); + assertThrowsInstanceOf(() => method(-Infinity), RangeError); + + // Both -0 and -0.9 round towards 0. + method(-0); + method(-0.9); +} + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |