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: --random-seed=17 29 30 assertEquals(" ".toLowerCase(), " "); 31 32 var A_CODE = "A".charCodeAt(0); 33 var Z_CODE = "Z".charCodeAt(0); 34 var a_CODE = "a".charCodeAt(0); 35 var z_CODE = "z".charCodeAt(0); 36 37 function charCodeToLower(charCode) { 38 if (A_CODE <= charCode && charCode <= Z_CODE) { 39 return charCode + a_CODE - A_CODE; 40 } 41 return charCode; 42 } 43 44 function charCodeToUpper(charCode) { 45 if (a_CODE <= charCode && charCode <= z_CODE) { 46 return charCode - (a_CODE - A_CODE); 47 } 48 return charCode; 49 } 50 51 function test(length) { 52 var str = ""; 53 var strLower = ""; 54 var strUpper = ""; 55 for (var i = 0; i < length; i++) { 56 var c = Math.round(0x7f * Math.random()); 57 str += String.fromCharCode(c); 58 strLower += String.fromCharCode(charCodeToLower(c)); 59 strUpper += String.fromCharCode(charCodeToUpper(c)); 60 } 61 assertEquals(strLower, str.toLowerCase()); 62 assertEquals(strUpper, str.toUpperCase()); 63 } 64 65 for (var i = 1; i <= 128; i <<= 1); { 66 for (var j = 0; j < 8; j++) { 67 for (var k = 0; k < 3; k++) { 68 test(i + j); 69 } 70 } 71 } 72
