1 // Copyright 2012 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 29 var flags; 30 31 function resetFlags(size) { 32 flags = Array(size); 33 while (size--) flags[size] = 0; 34 } 35 36 function assertFlags(array) { 37 assertArrayEquals(array, flags); 38 } 39 40 function object_factory(flag_index, value, expected_flags) { 41 var obj = {}; 42 obj.valueOf = function() { 43 assertFlags(expected_flags); 44 flags[flag_index]++; 45 return value; 46 } 47 return obj; 48 } 49 50 51 assertEquals(-Infinity, Math.max()); 52 53 resetFlags(1); 54 assertEquals(NaN, 55 Math.max(object_factory(0, NaN, [0]))); 56 assertFlags([1]); 57 58 resetFlags(2); 59 assertEquals(NaN, 60 Math.max(object_factory(0, NaN, [0, 0]), 61 object_factory(1, 0, [1, 0]))); 62 assertFlags([1, 1]); 63 64 resetFlags(3); 65 assertEquals(NaN, 66 Math.max(object_factory(0, NaN, [0, 0, 0]), 67 object_factory(1, 0, [1, 0, 0]), 68 object_factory(2, 1, [1, 1, 0]))); 69 assertFlags([1, 1, 1]); 70 71 resetFlags(3); 72 assertEquals(NaN, 73 Math.max(object_factory(0, 2, [0, 0, 0]), 74 object_factory(1, 0, [1, 0, 0]), 75 object_factory(2, NaN, [1, 1, 0]))); 76 assertFlags([1, 1, 1]); 77 78 resetFlags(3); 79 assertEquals(2, 80 Math.max(object_factory(0, 2, [0, 0, 0]), 81 object_factory(1, 0, [1, 0, 0]), 82 object_factory(2, 1, [1, 1, 0]))); 83 assertFlags([1, 1, 1]); 84 85 86 assertEquals(+Infinity, Math.min()); 87 88 resetFlags(1); 89 assertEquals(NaN, 90 Math.min(object_factory(0, NaN, [0]))); 91 assertFlags([1]); 92 93 resetFlags(2); 94 assertEquals(NaN, 95 Math.min(object_factory(0, NaN, [0, 0]), 96 object_factory(1, 0, [1, 0]))); 97 assertFlags([1, 1]); 98 99 resetFlags(3); 100 assertEquals(NaN, 101 Math.min(object_factory(0, NaN, [0, 0, 0]), 102 object_factory(1, 0, [1, 0, 0]), 103 object_factory(2, 1, [1, 1, 0]))); 104 assertFlags([1, 1, 1]); 105 106 resetFlags(3); 107 assertEquals(NaN, 108 Math.min(object_factory(0, 2, [0, 0, 0]), 109 object_factory(1, 0, [1, 0, 0]), 110 object_factory(2, NaN, [1, 1, 0]))); 111 assertFlags([1, 1, 1]); 112 113 resetFlags(3); 114 assertEquals(0, 115 Math.min(object_factory(0, 2, [0, 0, 0]), 116 object_factory(1, 0, [1, 0, 0]), 117 object_factory(2, 1, [1, 1, 0]))); 118 assertFlags([1, 1, 1]); 119
