1 // Copyright (c) 2009 Apple Computer, Inc. All rights reserved. 2 // 3 // Redistribution and use in source and binary forms, with or without 4 // modification, are permitted provided that the following conditions 5 // are met: 6 // 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 10 // 2. Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following 12 // disclaimer in the documentation and/or other materials provided 13 // with the distribution. 14 // 15 // 3. Neither the name of the copyright holder(s) nor the names of any 16 // contributors may be used to endorse or promote products derived 17 // from this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23 // COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 26 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 28 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 30 // OF THE POSSIBILITY OF SUCH DAMAGE. 31 32 // Based on LayoutTests/fast/js/script-tests/string-trim.js 33 34 // References to trim(), trimLeft() and trimRight() functions for 35 // testing Function's *.call() and *.apply() methods. 36 37 var trim = String.prototype.trim; 38 var trimLeft = String.prototype.trimLeft; 39 var trimRight = String.prototype.trimRight; 40 41 var testString = 'foo bar'; 42 var trimString = ''; 43 var leftTrimString = ''; 44 var rightTrimString = ''; 45 var wsString = ''; 46 47 var whitespace = [ 48 {s : '\u0009', t : 'HORIZONTAL TAB'}, 49 {s : '\u000A', t : 'LINE FEED OR NEW LINE'}, 50 {s : '\u000B', t : 'VERTICAL TAB'}, 51 {s : '\u000C', t : 'FORMFEED'}, 52 {s : '\u000D', t : 'CARRIAGE RETURN'}, 53 {s : '\u0020', t : 'SPACE'}, 54 {s : '\u00A0', t : 'NO-BREAK SPACE'}, 55 {s : '\u2000', t : 'EN QUAD'}, 56 {s : '\u2001', t : 'EM QUAD'}, 57 {s : '\u2002', t : 'EN SPACE'}, 58 {s : '\u2003', t : 'EM SPACE'}, 59 {s : '\u2004', t : 'THREE-PER-EM SPACE'}, 60 {s : '\u2005', t : 'FOUR-PER-EM SPACE'}, 61 {s : '\u2006', t : 'SIX-PER-EM SPACE'}, 62 {s : '\u2007', t : 'FIGURE SPACE'}, 63 {s : '\u2008', t : 'PUNCTUATION SPACE'}, 64 {s : '\u2009', t : 'THIN SPACE'}, 65 {s : '\u200A', t : 'HAIR SPACE'}, 66 {s : '\u3000', t : 'IDEOGRAPHIC SPACE'}, 67 {s : '\u2028', t : 'LINE SEPARATOR'}, 68 {s : '\u2029', t : 'PARAGRAPH SEPARATOR'}, 69 {s : '\u200B', t : 'ZERO WIDTH SPACE (category Cf)'} 70 ]; 71 72 for (var i = 0; i < whitespace.length; i++) { 73 assertEquals(whitespace[i].s.trim(), ''); 74 assertEquals(whitespace[i].s.trimLeft(), ''); 75 assertEquals(whitespace[i].s.trimRight(), ''); 76 wsString += whitespace[i].s; 77 } 78 79 trimString = wsString + testString + wsString; 80 leftTrimString = testString + wsString; // Trimmed from the left. 81 rightTrimString = wsString + testString; // Trimmed from the right. 82 83 assertEquals(wsString.trim(), ''); 84 assertEquals(wsString.trimLeft(), ''); 85 assertEquals(wsString.trimRight(), ''); 86 87 assertEquals(trimString.trim(), testString); 88 assertEquals(trimString.trimLeft(), leftTrimString); 89 assertEquals(trimString.trimRight(), rightTrimString); 90 91 assertEquals(leftTrimString.trim(), testString); 92 assertEquals(leftTrimString.trimLeft(), leftTrimString); 93 assertEquals(leftTrimString.trimRight(), testString); 94 95 assertEquals(rightTrimString.trim(), testString); 96 assertEquals(rightTrimString.trimLeft(), testString); 97 assertEquals(rightTrimString.trimRight(), rightTrimString); 98 99 var testValues = [0, Infinity, NaN, true, false, ({}), ['an','array'], 100 ({toString:function(){return 'wibble'}}) 101 ]; 102 103 for (var i = 0; i < testValues.length; i++) { 104 assertEquals(trim.call(testValues[i]), String(testValues[i])); 105 assertEquals(trimLeft.call(testValues[i]), String(testValues[i])); 106 assertEquals(trimRight.call(testValues[i]), String(testValues[i])); 107 } 108
