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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js b/js/src/tests/test262/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js new file mode 100644 index 0000000000..aacbec9710 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js @@ -0,0 +1,24 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.prototype.indexof +description: > + Returns -1 if length is 0. +info: | + Array.prototype.indexOf ( searchElement [ , fromIndex ] ) + + 1. Let O be ? ToObject(this value). + 2. Let len be ? LengthOfArrayLike(O). + 3. If len is 0, return -1. +---*/ + +var fromIndex = { + valueOf: function() { + throw new Test262Error("Length should be checked before ToInteger(fromIndex)."); + }, +}; + +assert.sameValue([].indexOf(1), -1); +assert.sameValue([].indexOf(2, fromIndex), -1); + +reportCompare(0, 0); |