diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js b/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js new file mode 100644 index 0000000000..b54da632c6 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/includes/fromIndex-infinity.js @@ -0,0 +1,37 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array.prototype.includes +description: handle Infinity values for fromIndex +info: | + 22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] ) + + ... + 4. Let n be ? ToInteger(fromIndex). (If fromIndex is undefined, this step + produces the value 0.) + 5. If n ≥ 0, then + a. Let k be n. + 6. Else n < 0, + a. Let k be len + n. + b. If k < 0, let k be 0. + 7. Repeat, while k < len + ... + 8. Return false. +features: [Array.prototype.includes] +---*/ + +var sample = [42, 43, 43, 41]; + +assert.sameValue( + sample.includes(43, Infinity), + false, + "includes(43, Infinity)" +); +assert.sameValue( + sample.includes(43, -Infinity), + true, + "includes(43, -Infinity)" +); + +reportCompare(0, 0); |