1 // Copyright 2009 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 assertTrue(undefined == undefined, 1); 29 assertFalse(undefined <= undefined, 2); 30 assertFalse(undefined >= undefined, 3); 31 assertFalse(undefined < undefined, 4); 32 assertFalse(undefined > undefined, 5); 33 34 assertTrue(null == null, 6); 35 assertTrue(null <= null, 7); 36 assertTrue(null >= null, 8); 37 assertFalse(null < null, 9); 38 assertFalse(null > null, 10); 39 40 assertTrue(void 0 == void 0, 11); 41 assertFalse(void 0 <= void 0, 12); 42 assertFalse(void 0 >= void 0, 13); 43 assertFalse(void 0 < void 0, 14); 44 assertFalse(void 0 > void 0, 15); 45 46 var x = void 0; 47 48 assertTrue(x == x, 16); 49 assertFalse(x <= x, 17); 50 assertFalse(x >= x, 18); 51 assertFalse(x < x, 19); 52 assertFalse(x > x, 20); 53 54 var not_undefined = [null, 0, 1, 1/0, -1/0, "", true, false]; 55 for (var i = 0; i < not_undefined.length; i++) { 56 x = not_undefined[i]; 57 58 assertTrue(x == x, "" + 21 + x); 59 assertTrue(x <= x, "" + 22 + x); 60 assertTrue(x >= x, "" + 23 + x); 61 assertFalse(x < x, "" + 24 + x); 62 assertFalse(x > x, "" + 25 + x); 63 } 64
