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// Flags: --harmony-maths 29 30assertEquals("Infinity", String(1/Math.trunc(0))); 31assertEquals("-Infinity", String(1/Math.trunc(-0))); 32assertEquals("Infinity", String(1/Math.trunc(Math.PI/4))); 33assertEquals("-Infinity", String(1/Math.trunc(-Math.sqrt(2)/2))); 34assertEquals(100, Math.trunc(100)); 35assertEquals(-199, Math.trunc(-199)); 36assertEquals(100, Math.trunc(100.1)); 37assertTrue(isNaN(Math.trunc("abc"))); 38assertTrue(isNaN(Math.trunc({}))); 39assertEquals(0, Math.trunc([])); 40assertEquals(1, Math.trunc([1])); 41assertEquals(-100, Math.trunc([-100.1])); 42assertTrue(isNaN(Math.trunc([1, 1]))); 43assertEquals(-100, Math.trunc({ toString: function() { return "-100.3"; } })); 44assertEquals(10, Math.trunc({ toString: function() { return 10.1; } })); 45assertEquals(-1, Math.trunc({ valueOf: function() { return -1.1; } })); 46assertEquals("-Infinity", 47 String(1/Math.trunc({ valueOf: function() { return "-0.1"; } }))); 48assertEquals("-Infinity", String(Math.trunc(-Infinity))); 49assertEquals("Infinity", String(Math.trunc(Infinity))); 50assertEquals("-Infinity", String(Math.trunc("-Infinity"))); 51assertEquals("Infinity", String(Math.trunc("Infinity"))); 52