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23
24description("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
27var trim            = String.prototype.trim;
28var trimLeft        = String.prototype.trimLeft;
29var trimRight       = String.prototype.trimRight;
30
31var testString      = 'foo bar';
32var trimString      = '';
33var leftTrimString  = '';
34var rightTrimString = '';
35var wsString        = '';
36
37var 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
62for (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
69trimString      = wsString   + testString + wsString;
70leftTrimString  = testString + wsString;   //trimmed from the left
71rightTrimString = wsString   + testString; //trimmed from the right
72
73shouldBe("wsString.trim()",      "''");
74shouldBe("wsString.trimLeft()",  "''");
75shouldBe("wsString.trimRight()", "''");
76
77shouldBe("trimString.trim()",      "testString");
78shouldBe("trimString.trimLeft()",  "leftTrimString");
79shouldBe("trimString.trimRight()", "rightTrimString");
80
81shouldBe("leftTrimString.trim()",      "testString");
82shouldBe("leftTrimString.trimLeft()",  "leftTrimString");
83shouldBe("leftTrimString.trimRight()", "testString");
84
85shouldBe("rightTrimString.trim()",      "testString");
86shouldBe("rightTrimString.trimLeft()",  "testString");
87shouldBe("rightTrimString.trimRight()", "rightTrimString");
88
89var testValues = ["0", "Infinity", "NaN", "true", "false", "({})", "({toString:function(){return 'wibble'}})", "['an','array']"];
90for (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