v8/test/mjsunit/string-case.js

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// 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);
}
}
}