JezK
Edit File: string-case.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --random-seed=17 assertEquals("ΚΟΣΜΟΣ ΚΟΣΜΟΣ".toLowerCase(), "κοσμος κοσμος"); var A_CODE = "A".charCodeAt(0); var Z_CODE = "Z".charCodeAt(0); var a_CODE = "a".charCodeAt(0); var z_CODE = "z".charCodeAt(0); function charCodeToLower(charCode) { if (A_CODE <= charCode && charCode <= Z_CODE) { return charCode + a_CODE - A_CODE; } return charCode; } function charCodeToUpper(charCode) { if (a_CODE <= charCode && charCode <= z_CODE) { return charCode - (a_CODE - A_CODE); } return charCode; } function test(length) { var str = ""; var strLower = ""; var strUpper = ""; for (var i = 0; i < length; i++) { var c = Math.round(0x7f * Math.random()); str += String.fromCharCode(c); strLower += String.fromCharCode(charCodeToLower(c)); strUpper += String.fromCharCode(charCodeToUpper(c)); } assertEquals(strLower, str.toLowerCase()); assertEquals(strUpper, str.toUpperCase()); } for (var i = 1; i <= 128; i <<= 1); { for (var j = 0; j < 8; j++) { for (var k = 0; k < 3; k++) { test(i + j); } } }