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Diffstat (limited to 'js/src/tests/test262/built-ins/Iterator/prototype/reduce/argument-effect-order.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Iterator/prototype/reduce/argument-effect-order.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Iterator/prototype/reduce/argument-effect-order.js b/js/src/tests/test262/built-ins/Iterator/prototype/reduce/argument-effect-order.js new file mode 100644 index 0000000000..1f66e7c18a --- /dev/null +++ b/js/src/tests/test262/built-ins/Iterator/prototype/reduce/argument-effect-order.js @@ -0,0 +1,61 @@ +// |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.reduce +description: > + Arguments and this value are evaluated in the correct order +info: | + %Iterator.prototype%.reduce ( reducer ) + +includes: [compareArray.js] +features: [iterator-helpers] +flags: [] +---*/ +let effects = []; + +assert.throws(TypeError, function () { + Iterator.prototype.reduce.call( + { + get next() { + effects.push('get next'); + return function () { + return { done: true, value: undefined }; + }; + }, + }, + { + valueOf() { + effects.push('reducer valueOf'); + } + }, + { + valueOf() { + effects.push('initial value valueOf'); + } + } + ); +}); + +assert.compareArray(effects, []); + +Iterator.prototype.reduce.call( + { + get next() { + effects.push('get next'); + return function () { + return { done: true, value: undefined }; + }; + }, + }, + () => {}, + { + valueOf() { + effects.push('initial value valueOf'); + } + } +); + +assert.compareArray(effects, ['get next']); + +reportCompare(0, 0); |