diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/includes/length-zero-returns-false.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/includes/length-zero-returns-false.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/includes/length-zero-returns-false.js b/js/src/tests/test262/built-ins/Array/prototype/includes/length-zero-returns-false.js new file mode 100644 index 0000000000..0911c7b02e --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/includes/length-zero-returns-false.js @@ -0,0 +1,30 @@ +// 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: Returns false if length is 0 +info: | + 22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] ) + + ... + 2. Let len be ? ToLength(? Get(O, "length")). + 3. If len is 0, return false. + ... +features: [Array.prototype.includes] +---*/ + +var calls = 0; +var fromIndex = { + valueOf: function() { + calls++; + } +}; + +var sample = []; +assert.sameValue(sample.includes(0), false, "returns false"); +assert.sameValue(sample.includes(), false, "returns false - no arg"); +assert.sameValue(sample.includes(0, fromIndex), false, "using fromIndex"); +assert.sameValue(calls, 0, "length is checked before ToInteger(fromIndex)"); + +reportCompare(0, 0); |