1// Copyright 2008 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 28var n = null; 29var u = void 0; 30assertTrue(null === null); 31assertTrue(null === n); 32assertTrue(n === null); 33assertTrue(n === n); 34assertFalse(null === void 0); 35assertFalse(void 0 === null); 36assertFalse(u === null); 37assertFalse(null === u); 38assertFalse(n === u); 39assertFalse(u === n); 40assertTrue(void 0 === void 0); 41assertTrue(u === u); 42assertTrue(u === void 0); 43assertTrue(void 0 === u); 44 45assertTrue('foo' === 'foo'); 46assertFalse('bar' === 'foo'); 47assertFalse('foo' === new String('foo')); 48assertFalse(new String('foo') === new String('foo')); 49var s = new String('foo'); 50assertTrue(s === s); 51assertFalse(s === null); 52assertFalse(s === void 0); 53assertFalse('foo' === null); 54assertFalse('foo' === 7); 55assertFalse('foo' === true); 56assertFalse('foo' === void 0); 57assertFalse('foo' === {}); 58 59assertFalse({} === {}); 60var x = {}; 61assertTrue(x === x); 62assertFalse(x === null); 63assertFalse(x === 7); 64assertFalse(x === true); 65assertFalse(x === void 0); 66assertFalse(x === {}); 67 68assertTrue(true === true); 69assertTrue(false === false); 70assertFalse(false === true); 71assertFalse(true === false); 72assertFalse(true === new Boolean(true)); 73assertFalse(true === new Boolean(false)); 74assertFalse(false === new Boolean(true)); 75assertFalse(false === new Boolean(false)); 76assertFalse(true === 0); 77assertFalse(true === 1); 78 79assertTrue(0 === 0); 80assertTrue(-0 === -0); 81assertTrue(-0 === 0); 82assertTrue(0 === -0); 83assertFalse(0 === new Number(0)); 84assertFalse(1 === new Number(1)); 85assertTrue(4.2 === 4.2); 86assertTrue(4.2 === Number(4.2)); 87 88 89 90 91