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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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      5 // modification, are permitted provided that the following conditions
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      7 // 1.  Redistributions of source code must retain the above copyright
      8 //     notice, this list of conditions and the following disclaimer.
      9 // 2.  Redistributions in binary form must reproduce the above copyright
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     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description("This test checks String.trim(), String.trimLeft() and String.trimRight() methods.");
     25 
     26 //references to trim(), trimLeft() and trimRight() functions for testing Function's *.call() and *.apply() methods
     27 var trim            = String.prototype.trim;
     28 var trimLeft        = String.prototype.trimLeft;
     29 var trimRight       = String.prototype.trimRight;
     30 
     31 var testString      = 'foo bar';
     32 var trimString      = '';
     33 var leftTrimString  = '';
     34 var rightTrimString = '';
     35 var wsString        = '';
     36 
     37 var whitespace      = [
     38     {s : '\u0009', t : 'HORIZONTAL TAB'},
     39     {s : '\u000A', t : 'LINE FEED OR NEW LINE'},
     40     {s : '\u000B', t : 'VERTICAL TAB'},
     41     {s : '\u000C', t : 'FORMFEED'},
     42     {s : '\u000D', t : 'CARRIAGE RETURN'},
     43     {s : '\u0020', t : 'SPACE'},
     44     {s : '\u00A0', t : 'NO-BREAK SPACE'},
     45     {s : '\u2000', t : 'EN QUAD'},
     46     {s : '\u2001', t : 'EM QUAD'},
     47     {s : '\u2002', t : 'EN SPACE'},
     48     {s : '\u2003', t : 'EM SPACE'},
     49     {s : '\u2004', t : 'THREE-PER-EM SPACE'},
     50     {s : '\u2005', t : 'FOUR-PER-EM SPACE'},
     51     {s : '\u2006', t : 'SIX-PER-EM SPACE'},
     52     {s : '\u2007', t : 'FIGURE SPACE'},
     53     {s : '\u2008', t : 'PUNCTUATION SPACE'},
     54     {s : '\u2009', t : 'THIN SPACE'},
     55     {s : '\u200A', t : 'HAIR SPACE'},
     56     {s : '\u3000', t : 'IDEOGRAPHIC SPACE'},
     57     {s : '\u2028', t : 'LINE SEPARATOR'},
     58     {s : '\u2029', t : 'PARAGRAPH SEPARATOR'},
     59     {s : '\u200B', t : 'ZERO WIDTH SPACE (category Cf)'}
     60 ];
     61 
     62 for (var i = 0; i < whitespace.length; i++) {
     63     shouldBe("whitespace["+i+"].s.trim()", "''");
     64     shouldBe("whitespace["+i+"].s.trimLeft()", "''");
     65     shouldBe("whitespace["+i+"].s.trimRight()", "''");
     66     wsString += whitespace[i].s;
     67 }
     68 
     69 trimString      = wsString   + testString + wsString;
     70 leftTrimString  = testString + wsString;   //trimmed from the left
     71 rightTrimString = wsString   + testString; //trimmed from the right
     72 
     73 shouldBe("wsString.trim()",      "''");
     74 shouldBe("wsString.trimLeft()",  "''");
     75 shouldBe("wsString.trimRight()", "''");
     76 
     77 shouldBe("trimString.trim()",      "testString");
     78 shouldBe("trimString.trimLeft()",  "leftTrimString");
     79 shouldBe("trimString.trimRight()", "rightTrimString");
     80 
     81 shouldBe("leftTrimString.trim()",      "testString");
     82 shouldBe("leftTrimString.trimLeft()",  "leftTrimString");
     83 shouldBe("leftTrimString.trimRight()", "testString");
     84 
     85 shouldBe("rightTrimString.trim()",      "testString");
     86 shouldBe("rightTrimString.trimLeft()",  "testString");
     87 shouldBe("rightTrimString.trimRight()", "rightTrimString");
     88 
     89 var testValues = ["0", "Infinity", "NaN", "true", "false", "({})", "({toString:function(){return 'wibble'}})", "['an','array']"];
     90 for (var i = 0; i < testValues.length; i++) {
     91     shouldBe("trim.call("+testValues[i]+")", "'"+eval(testValues[i])+"'");
     92     shouldBe("trimLeft.call("+testValues[i]+")", "'"+eval(testValues[i])+"'");
     93     shouldBe("trimRight.call("+testValues[i]+")", "'"+eval(testValues[i])+"'");
     94 }
     95