1 // Copyright 2013 the V8 project authors. All rights reserved. 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 assertEquals("Infinity", String(1/Math.trunc(0))); 29 assertEquals("-Infinity", String(1/Math.trunc(-0))); 30 assertEquals("Infinity", String(1/Math.trunc(Math.PI/4))); 31 assertEquals("-Infinity", String(1/Math.trunc(-Math.sqrt(2)/2))); 32 assertEquals(100, Math.trunc(100)); 33 assertEquals(-199, Math.trunc(-199)); 34 assertEquals(100, Math.trunc(100.1)); 35 assertTrue(isNaN(Math.trunc("abc"))); 36 assertTrue(isNaN(Math.trunc({}))); 37 assertEquals(0, Math.trunc([])); 38 assertEquals(1, Math.trunc([1])); 39 assertEquals(-100, Math.trunc([-100.1])); 40 assertTrue(isNaN(Math.trunc([1, 1]))); 41 assertEquals(-100, Math.trunc({ toString: function() { return "-100.3"; } })); 42 assertEquals(10, Math.trunc({ toString: function() { return 10.1; } })); 43 assertEquals(-1, Math.trunc({ valueOf: function() { return -1.1; } })); 44 assertEquals("-Infinity", 45 String(1/Math.trunc({ valueOf: function() { return "-0.1"; } }))); 46 assertEquals("-Infinity", String(Math.trunc(-Infinity))); 47 assertEquals("Infinity", String(Math.trunc(Infinity))); 48 assertEquals("-Infinity", String(Math.trunc("-Infinity"))); 49 assertEquals("Infinity", String(Math.trunc("Infinity"))); 50
