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 28 // Flags: --allow-natives-syntax 29 30 // Test Math.min(). 31 32 assertEquals(Infinity, Math.min()); 33 assertEquals(1, Math.min(1)); 34 assertEquals(1, Math.min(1, 2)); 35 assertEquals(1, Math.min(2, 1)); 36 assertEquals(1, Math.min(1, 2, 3)); 37 assertEquals(1, Math.min(3, 2, 1)); 38 assertEquals(1, Math.min(2, 3, 1)); 39 assertEquals(1.1, Math.min(1.1, 2.2, 3.3)); 40 assertEquals(1.1, Math.min(3.3, 2.2, 1.1)); 41 assertEquals(1.1, Math.min(2.2, 3.3, 1.1)); 42 43 // Prepare a non-Smi zero value. 44 function returnsNonSmi(){ return 0.25; } 45 var ZERO = returnsNonSmi() - returnsNonSmi(); 46 assertEquals(0, ZERO); 47 assertEquals(Infinity, 1/ZERO); 48 assertEquals(-Infinity, 1/-ZERO); 49 assertFalse(%_IsSmi(ZERO)); 50 assertFalse(%_IsSmi(-ZERO)); 51 52 var o = {}; 53 o.valueOf = function() { return 1; }; 54 assertEquals(1, Math.min(2, 3, '1')); 55 assertEquals(1, Math.min(3, o, 2)); 56 assertEquals(1, Math.min(o, 2)); 57 assertEquals(-Infinity, Infinity / Math.min(-0, +0)); 58 assertEquals(-Infinity, Infinity / Math.min(+0, -0)); 59 assertEquals(-Infinity, Infinity / Math.min(+0, -0, 1)); 60 assertEquals(-Infinity, Infinity / Math.min(-0, ZERO)); 61 assertEquals(-Infinity, Infinity / Math.min(ZERO, -0)); 62 assertEquals(-Infinity, Infinity / Math.min(ZERO, -0, 1)); 63 assertEquals(-1, Math.min(+0, -0, -1)); 64 assertEquals(-1, Math.min(-1, +0, -0)); 65 assertEquals(-1, Math.min(+0, -1, -0)); 66 assertEquals(-1, Math.min(-0, -1, +0)); 67 assertNaN(Math.min('oxen')); 68 assertNaN(Math.min('oxen', 1)); 69 assertNaN(Math.min(1, 'oxen')); 70 71 72 // Test Math.max(). 73 74 assertEquals(Number.NEGATIVE_INFINITY, Math.max()); 75 assertEquals(1, Math.max(1)); 76 assertEquals(2, Math.max(1, 2)); 77 assertEquals(2, Math.max(2, 1)); 78 assertEquals(3, Math.max(1, 2, 3)); 79 assertEquals(3, Math.max(3, 2, 1)); 80 assertEquals(3, Math.max(2, 3, 1)); 81 assertEquals(3.3, Math.max(1.1, 2.2, 3.3)); 82 assertEquals(3.3, Math.max(3.3, 2.2, 1.1)); 83 assertEquals(3.3, Math.max(2.2, 3.3, 1.1)); 84 85 var o = {}; 86 o.valueOf = function() { return 3; }; 87 assertEquals(3, Math.max(2, '3', 1)); 88 assertEquals(3, Math.max(1, o, 2)); 89 assertEquals(3, Math.max(o, 1)); 90 assertEquals(Infinity, Infinity / Math.max(-0, +0)); 91 assertEquals(Infinity, Infinity / Math.max(+0, -0)); 92 assertEquals(Infinity, Infinity / Math.max(+0, -0, -1)); 93 assertEquals(Infinity, Infinity / Math.max(-0, ZERO)); 94 assertEquals(Infinity, Infinity / Math.max(ZERO, -0)); 95 assertEquals(Infinity, Infinity / Math.max(ZERO, -0, -1)); 96 assertEquals(1, Math.max(+0, -0, +1)); 97 assertEquals(1, Math.max(+1, +0, -0)); 98 assertEquals(1, Math.max(+0, +1, -0)); 99 assertEquals(1, Math.max(-0, +1, +0)); 100 assertNaN(Math.max('oxen')); 101 assertNaN(Math.max('oxen', 1)); 102 assertNaN(Math.max(1, 'oxen')); 103 104 assertEquals(Infinity, 1/Math.max(ZERO, -0)); 105 assertEquals(Infinity, 1/Math.max(-0, ZERO)); 106
