| // 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-string.prototype.substr |
| es6id: B.2.3.1 |
| description: Behavior when "start" is a negative number |
| info: | |
| [...] |
| 6. If intStart < 0, let intStart be max(size + intStart, 0). |
| ---*/ |
| |
| assert.sameValue('abc'.substr(-1), 'c'); |
| assert.sameValue('abc'.substr(-2), 'bc'); |
| assert.sameValue('abc'.substr(-3), 'abc'); |
| assert.sameValue('abc'.substr(-4), 'abc', 'size + intStart < 0'); |
| |
| assert.sameValue('abc'.substr(-1.1), 'c', 'floating point rounding semantics'); |
