194 lines
6.6 KiB
JavaScript
194 lines
6.6 KiB
JavaScript
/*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s): pschwartau@netscape.com, jim@jibbering.com
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* Creation Date: 30 May 2001
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* Correction Date: 14 Aug 2001
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*
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* SUMMARY: Regression test for bugs 83293, 103351
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* See http://bugzilla.mozilla.org/show_bug.cgi?id=83293
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* http://bugzilla.mozilla.org/show_bug.cgi?id=103351
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* http://bugzilla.mozilla.org/show_bug.cgi?id=92942
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*
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*
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* ******************** CORRECTION !!! *****************************
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*
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* When I originally wrote this test, I thought this was true:
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* str.replace(strA, strB) == str.replace(new RegExp(strA),strB).
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* See ECMA-262 Final Draft, 15.5.4.11 String.prototype.replace
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*
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* However, in http://bugzilla.mozilla.org/show_bug.cgi?id=83293
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* Jim Ley points out the ECMA-262 Final Edition changed on this.
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* String.prototype.replace (searchValue, replaceValue), if provided
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* a searchValue that is not a RegExp, is NO LONGER to replace it with
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*
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* new RegExp(searchValue)
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* but rather:
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* String(searchValue)
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*
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* This puts the replace() method at variance with search() and match(),
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* which continue to follow the RegExp conversion of the Final Draft.
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* It also makes most of this testcase, as originally written, invalid.
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**********************************************************************
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*/
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//-----------------------------------------------------------------------------
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var bug = 103351; // <--- (Outgrowth of original bug 83293)
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var summ_OLD = 'Testing str.replace(strA, strB) == str.replace(new RegExp(strA),strB)';
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var summ_NEW = 'Testing String.prototype.replace(x,y) when x is a string';
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var summary = summ_NEW;
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var status = '';
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var actual = '';
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var expect= '';
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var cnEmptyString = '';
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var str = 'abc';
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var strA = cnEmptyString;
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var strB = 'Z';
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//-----------------------------------------------------------------------------
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test();
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//-----------------------------------------------------------------------------
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/*
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* In this test, it's important to reportCompare() each other case
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* BEFORE the last two cases are attempted. Don't store all results
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* in an array and reportCompare() them at the end, as we usually do.
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*
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* When this bug was filed, str.replace(strA, strB) would return no value
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* whatsoever if strA == cnEmptyString, and no error, either -
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*/
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function test()
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{
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enterFunc ('test');
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printBugNumber (bug);
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printStatus (summary);
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/******************* THESE WERE INCORRECT; SEE ABOVE ************************
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status = 'Section A of test';
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strA = 'a';
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actual = str.replace(strA, strB);
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expect = str.replace(new RegExp(strA), strB);
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reportCompare(expect, actual, status);
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status = 'Section B of test';
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strA = 'x';
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actual = str.replace(strA, strB);
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expect = str.replace(new RegExp(strA), strB);
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reportCompare(expect, actual, status);
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status = 'Section C of test';
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strA = undefined;
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actual = str.replace(strA, strB);
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expect = str.replace(new RegExp(strA), strB);
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reportCompare(expect, actual, status);
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status = 'Section D of test';
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strA = null;
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actual = str.replace(strA, strB);
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expect = str.replace(new RegExp(strA), strB);
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reportCompare(expect, actual, status);
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* This example is from jim@jibbering.com (see Bugzilla bug 92942)
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* It is a variation on the example below.
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*
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* Namely, we are using the regexp /$/ instead of the regexp //.
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* The regexp /$/ means we should match the "empty string" at the
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* end-boundary of the word, instead of the one at the beginning.
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*
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status = 'Section E of test';
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var strJim = 'aa$aa';
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strA = '$';
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actual = strJim.replace(strA, strB); // bug -> 'aaZaa'
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expect = strJim.replace(new RegExp(strA), strB); // expect 'aa$aaZ'
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reportCompare(expect, actual, status);
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*
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* Note: 'Zabc' is the result we expect for 'abc'.replace('', 'Z').
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*
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* The string '' is supposed to be equivalent to new RegExp('') = //.
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* The regexp // means we should match the "empty string" conceived of
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* at the beginning boundary of the word, before the first character.
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*
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status = 'Section F of test';
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strA = cnEmptyString;
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actual = str.replace(strA, strB);
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expect = 'Zabc';
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reportCompare(expect, actual, status);
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status = 'Section G of test';
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strA = cnEmptyString;
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actual = str.replace(strA, strB);
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expect = str.replace(new RegExp(strA), strB);
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reportCompare(expect, actual, status);
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************************* END OF INCORRECT CASES ****************************/
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////////////////////////// OK, LET'S START OVER //////////////////////////////
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status = 'Section 1 of test';
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actual = 'abc'.replace('a', 'Z');
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expect = 'Zbc';
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reportCompare(expect, actual, status);
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status = 'Section 2 of test';
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actual = 'abc'.replace('b', 'Z');
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expect = 'aZc';
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reportCompare(expect, actual, status);
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status = 'Section 3 of test';
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actual = 'abc'.replace(undefined, 'Z');
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expect = 'abc'; // String(undefined) == 'undefined'; no replacement possible
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reportCompare(expect, actual, status);
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status = 'Section 4 of test';
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actual = 'abc'.replace(null, 'Z');
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expect = 'abc'; // String(null) == 'null'; no replacement possible
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reportCompare(expect, actual, status);
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status = 'Section 5 of test';
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actual = 'abc'.replace(true, 'Z');
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expect = 'abc'; // String(true) == 'true'; no replacement possible
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reportCompare(expect, actual, status);
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status = 'Section 6 of test';
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actual = 'abc'.replace(false, 'Z');
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expect = 'abc'; // String(false) == 'false'; no replacement possible
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reportCompare(expect, actual, status);
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status = 'Section 7 of test';
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actual = 'aa$aa'.replace('$', 'Z');
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expect = 'aaZaa'; // NOT 'aa$aaZ' as in ECMA Final Draft; see above
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reportCompare(expect, actual, status);
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status = 'Section 8 of test';
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actual = 'abc'.replace('.*', 'Z');
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expect = 'abc'; // not 'Z' as in EMCA Final Draft
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reportCompare(expect, actual, status);
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status = 'Section 9 of test';
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actual = 'abc'.replace('', 'Z');
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expect = 'Zabc'; // Still expect 'Zabc' for this
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reportCompare(expect, actual, status);
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exitFunc ('test');
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}
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