| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| assertEquals("Infinity", String(1/Math.trunc(0))); |
| assertEquals("-Infinity", String(1/Math.trunc(-0))); |
| assertEquals("Infinity", String(1/Math.trunc(Math.PI/4))); |
| assertEquals("-Infinity", String(1/Math.trunc(-Math.sqrt(2)/2))); |
| assertEquals(100, Math.trunc(100)); |
| assertEquals(-199, Math.trunc(-199)); |
| assertEquals(100, Math.trunc(100.1)); |
| assertTrue(isNaN(Math.trunc("abc"))); |
| assertTrue(isNaN(Math.trunc({}))); |
| assertEquals(0, Math.trunc([])); |
| assertEquals(1, Math.trunc([1])); |
| assertEquals(-100, Math.trunc([-100.1])); |
| assertTrue(isNaN(Math.trunc([1, 1]))); |
| assertEquals(-100, Math.trunc({ toString: function() { return "-100.3"; } })); |
| assertEquals(10, Math.trunc({ toString: function() { return 10.1; } })); |
| assertEquals(-1, Math.trunc({ valueOf: function() { return -1.1; } })); |
| assertEquals("-Infinity", |
| String(1/Math.trunc({ valueOf: function() { return "-0.1"; } }))); |
| assertEquals("-Infinity", String(Math.trunc(-Infinity))); |
| assertEquals("Infinity", String(Math.trunc(Infinity))); |
| assertEquals("-Infinity", String(Math.trunc("-Infinity"))); |
| assertEquals("Infinity", String(Math.trunc("Infinity"))); |