diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/String/prototype/startsWith/out-of-bounds-position.js')
-rw-r--r-- | js/src/tests/test262/built-ins/String/prototype/startsWith/out-of-bounds-position.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/startsWith/out-of-bounds-position.js b/js/src/tests/test262/built-ins/String/prototype/startsWith/out-of-bounds-position.js new file mode 100644 index 0000000000..820e85662d --- /dev/null +++ b/js/src/tests/test262/built-ins/String/prototype/startsWith/out-of-bounds-position.js @@ -0,0 +1,45 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 21.1.3.18 +description: > + Returns false if searchLength + start position is greater than string length. +info: | + 21.1.3.18 String.prototype.startsWith ( searchString [ , position ] ) + + ... + 11. Let len be the number of elements in S. + 12. Let start be min(max(pos, 0), len). + 13. Let searchLength be the number of elements in searchStr. + 14. If searchLength+start is greater than len, return false. + ... +---*/ + +var str = 'The future is cool!'; + +assert.sameValue( + str.startsWith('!', str.length), false, + 'str.startsWith("!", str.length) returns false' +); + +assert.sameValue( + str.startsWith('!', 100), false, + 'str.startsWith("!", 100) returns false' +); + +assert.sameValue( + str.startsWith('!', Infinity), false, + 'str.startsWith("!", Infinity) returns false' +); + +assert( + str.startsWith('The future', -1), + 'position argument < 0 will search from the start of the string (-1)' +); + +assert( + str.startsWith('The future', -Infinity), + 'position argument < 0 will search from the start of the string (-Infinity)' +); + +reportCompare(0, 0); |