1// Copyright 2010 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 28assertEquals(0, Math.round(0)); 29assertEquals(-0, Math.round(-0)); 30assertEquals(Infinity, Math.round(Infinity)); 31assertEquals(-Infinity, Math.round(-Infinity)); 32assertNaN(Math.round(NaN)); 33 34assertEquals(1, Math.round(0.5)); 35assertEquals(1, Math.round(0.7)); 36assertEquals(1, Math.round(1)); 37assertEquals(1, Math.round(1.1)); 38assertEquals(1, Math.round(1.49999)); 39assertEquals(1/-0, 1/Math.round(-0.5)); // Test for -0 result. 40assertEquals(-1, Math.round(-0.5000000000000001)); 41assertEquals(-1, Math.round(-0.7)); 42assertEquals(-1, Math.round(-1)); 43assertEquals(-1, Math.round(-1.1)); 44assertEquals(-1, Math.round(-1.49999)); 45assertEquals(-1, Math.round(-1.5)); 46 47assertEquals(9007199254740990, Math.round(9007199254740990)); 48assertEquals(9007199254740991, Math.round(9007199254740991)); 49assertEquals(-9007199254740990, Math.round(-9007199254740990)); 50assertEquals(-9007199254740991, Math.round(-9007199254740991)); 51assertEquals(Number.MAX_VALUE, Math.round(Number.MAX_VALUE)); 52assertEquals(-Number.MAX_VALUE, Math.round(-Number.MAX_VALUE)); 53 54assertEquals(536870911, Math.round(536870910.5)); 55assertEquals(536870911, Math.round(536870911)); 56assertEquals(536870911, Math.round(536870911.4)); 57assertEquals(536870912, Math.round(536870911.5)); 58assertEquals(536870912, Math.round(536870912)); 59assertEquals(536870912, Math.round(536870912.4)); 60assertEquals(536870913, Math.round(536870912.5)); 61assertEquals(536870913, Math.round(536870913)); 62assertEquals(536870913, Math.round(536870913.4)); 63assertEquals(1073741823, Math.round(1073741822.5)); 64assertEquals(1073741823, Math.round(1073741823)); 65assertEquals(1073741823, Math.round(1073741823.4)); 66assertEquals(1073741824, Math.round(1073741823.5)); 67assertEquals(1073741824, Math.round(1073741824)); 68assertEquals(1073741824, Math.round(1073741824.4)); 69assertEquals(1073741825, Math.round(1073741824.5)); 70assertEquals(2147483647, Math.round(2147483646.5)); 71assertEquals(2147483647, Math.round(2147483647)); 72assertEquals(2147483647, Math.round(2147483647.4)); 73assertEquals(2147483648, Math.round(2147483647.5)); 74assertEquals(2147483648, Math.round(2147483648)); 75assertEquals(2147483648, Math.round(2147483648.4)); 76assertEquals(2147483649, Math.round(2147483648.5)); 77 78// Tests based on WebKit LayoutTests 79 80assertEquals(0, Math.round(0.4)); 81assertEquals(-0, Math.round(-0.4)); 82assertEquals(-0, Math.round(-0.5)); 83assertEquals(1, Math.round(0.6)); 84assertEquals(-1, Math.round(-0.6)); 85assertEquals(2, Math.round(1.5)); 86assertEquals(2, Math.round(1.6)); 87assertEquals(-2, Math.round(-1.6)); 88assertEquals(8640000000000000, Math.round(8640000000000000)); 89assertEquals(8640000000000001, Math.round(8640000000000001)); 90assertEquals(8640000000000002, Math.round(8640000000000002)); 91assertEquals(9007199254740990, Math.round(9007199254740990)); 92assertEquals(9007199254740991, Math.round(9007199254740991)); 93assertEquals(1.7976931348623157e+308, Math.round(1.7976931348623157e+308)); 94assertEquals(-8640000000000000, Math.round(-8640000000000000)); 95assertEquals(-8640000000000001, Math.round(-8640000000000001)); 96assertEquals(-8640000000000002, Math.round(-8640000000000002)); 97assertEquals(-9007199254740990, Math.round(-9007199254740990)); 98assertEquals(-9007199254740991, Math.round(-9007199254740991)); 99assertEquals(-1.7976931348623157e+308, Math.round(-1.7976931348623157e+308)); 100assertEquals(Infinity, Math.round(Infinity)); 101assertEquals(-Infinity, Math.round(-Infinity)); 102