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42 Description: 'This tests the String object method: slice'
45 Date: Fri Feb 13 09:58:28 PST 1998
48 var SECTION = 'As described in Netscape doc "Whats new in JavaScript 1.2"';
49 var VERSION = 'no version';
51 var TITLE = 'String.slice';
53 writeHeaderToLog('Executing script: slice.js');
54 writeHeaderToLog( SECTION + " "+ TITLE);
56 var a = new String("abcdefghijklmnopqrstuvwxyz1234567890");
57 var b = new String("this is a test string");
59 exhaustiveStringSliceTest("exhaustive String.slice test 1", a);
60 exhaustiveStringSliceTest("exhaustive String.slice test 2", b);
65 function myStringSlice(a, from, to)
69 var returnString = new String("");
72 if (from2 < 0) from2 = a.length + from;
73 if (to2 < 0) to2 = a.length + to;
75 if ((to2 > from2)&&(to2 > 0)&&(from2 < a.length))
77 if (from2 < 0) from2 = 0;
78 if (to2 > a.length) to2 = a.length;
80 for (i = from2; i < to2; ++i) returnString += a.charAt(i);
85 // This function tests the slice command on a String
86 // passed in. The arguments passed into slice range in
87 // value from -5 to the length of the array + 4. Every
88 // combination of the two arguments is tested. The expected
89 // result of the slice(...) method is calculated and
90 // compared to the actual result from the slice(...) method.
91 // If the Strings are not similar false is returned.
92 function exhaustiveStringSliceTest(testname, a)
100 for (x = -(2 + a.length); x <= (2 + a.length); x++)
101 for (y = (2 + a.length); y >= -(2 + a.length); y--)
103 var b = a.slice(x,y);
104 var c = myStringSlice(a,x,y);
106 if (String(b) != String(c))
109 "ERROR: 'TEST FAILED' ERROR: 'TEST FAILED' ERROR: 'TEST FAILED'\n" +
110 " test: " + "a.slice(" + x + "," + y + ")\n" +
111 " a: " + String(a) + "\n" +
112 " actual result: " + String(b) + "\n" +
113 " expected result: " + String(c) + "\n";
114 writeHeaderToLog(errorMessage);
115 reason = reason + errorMessage;
119 var testCase = new TestCase(SECTION, testname, true, passed);
121 testCase.reason = reason;