Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame^] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | // Test Math.sin and Math.cos. |
| 29 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame^] | 30 | function sinTest() { |
| 31 | assertEquals(0, Math.sin(0)); |
| 32 | assertEquals(1, Math.sin(Math.PI / 2)); |
| 33 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame^] | 35 | function cosTest() { |
| 36 | assertEquals(1, Math.cos(0)); |
| 37 | assertEquals(-1, Math.cos(Math.PI)); |
| 38 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 39 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame^] | 40 | sinTest(); |
| 41 | cosTest(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 42 | |
| 43 | // By accident, the slow case for sine and cosine were both sine at |
| 44 | // some point. This is a regression test for that issue. |
| 45 | var x = Math.pow(2, 70); |
| 46 | assertTrue(Math.sin(x) != Math.cos(x)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame^] | 47 | |
| 48 | // Ensure that sine and log are not the same. |
| 49 | x = 0.5; |
| 50 | assertTrue(Math.sin(x) != Math.log(x)); |