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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/RegExp/15.10.6.2-2.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/RegExp/15.10.6.2-2.js | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/js/src/tests/non262/RegExp/15.10.6.2-2.js b/js/src/tests/non262/RegExp/15.10.6.2-2.js new file mode 100644 index 0000000000..3dfb6ac74f --- /dev/null +++ b/js/src/tests/non262/RegExp/15.10.6.2-2.js @@ -0,0 +1,292 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * + * Date: 18 Feb 2002 + * SUMMARY: Testing re.exec(str) when re.lastIndex is < 0 or > str.length + * + * Case 1: If re has the global flag set, then re(str) should be null + * Case 2: If re doesn't have this set, then re(str) should be unaffected + * + * See http://bugzilla.mozilla.org/show_bug.cgi?id=76717 + * + * + * From the ECMA-262 Final spec: + * + * 15.10.6.2 RegExp.prototype.exec(string) + * Performs a regular expression match of string against the regular + * expression and returns an Array object containing the results of + * the match, or null if the string did not match. + * + * The string ToString(string) is searched for an occurrence of the + * regular expression pattern as follows: + * + * 1. Let S be the value of ToString(string). + * 2. Let length be the length of S. + * 3. Let lastIndex be the value of the lastIndex property. + * 4. Let i be the value of ToInteger(lastIndex). + * 5. If the global property is false, let i = 0. + * 6. If i < 0 or i > length then set lastIndex to 0 and return null. + * 7. Call [[Match]], giving it the arguments S and i. + * If [[Match]] returned failure, go to step 8; + * otherwise let r be its State result and go to step 10. + * 8. Let i = i+1. + * 9. Go to step 6. + * 10. Let e be r's endIndex value. + * 11. If the global property is true, set lastIndex to e. + * + * etc. + * + * + * So: + * + * A. If the global flag is not set, |lastIndex| is set to 0 + * before the match is attempted; thus the match is unaffected. + * + * B. If the global flag IS set and re.lastIndex is >= 0 and <= str.length, + * |lastIndex| is incremented every time there is a match; not from + * i to i+1, but from i to "endIndex" e: + * + * e = (index of last input character matched so far by the pattern) + 1 + * + * The match is then attempted from this position in the string (Step 7). + * + * C. When the global flag IS set and re.lastIndex is < 0 or > str.length, + * |lastIndex| is set to 0 and the match returns null. + * + * + * Note the |lastIndex| property is writeable, and may be set arbitrarily + * by the programmer - and we will do that below. + * + */ +//----------------------------------------------------------------------------- +var i = 0; +var BUGNUMBER = 76717; +var summary = 'Testing re.exec(str) when re.lastIndex is < 0 or > str.length'; +var status = ''; +var statusmessages = new Array(); +var pattern = ''; +var patterns = new Array(); +var string = ''; +var strings = new Array(); +var actualmatch = ''; +var actualmatches = new Array(); +var expectedmatch = ''; +var expectedmatches = new Array(); + + +/****************************************************************************** + * + * Case 1 : when the global flag is set - + * + *****************************************************************************/ +pattern = /abc/gi; +string = 'AbcaBcabC'; + +status = inSection(1); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc'); +addThis(); + +status = inSection(2); +actualmatch = pattern.exec(string); +expectedmatch = Array('aBc'); +addThis(); + +status = inSection(3); +actualmatch = pattern.exec(string); +expectedmatch = Array('abC'); +addThis(); + +/* + * At this point |lastIndex| is > string.length, so the match should be null - + */ +status = inSection(4); +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + +/* + * Now try some edge-case values. Thanks to the work done in + * http://bugzilla.mozilla.org/show_bug.cgi?id=124339, |lastIndex| + * is now stored as a double instead of a uint32_t (unsigned integer). + * + * Note 2^32 -1 is the upper bound for uint32's, but doubles can go + * all the way up to Number.MAX_VALUE. So that's why we need cases + * between those two numbers. + */ +status = inSection(6); +pattern.lastIndex = Math.pow(2,32); +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + +status = inSection(8); +pattern.lastIndex = Math.pow(2,32) + 1; +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + +status = inSection(10); +pattern.lastIndex = Math.pow(2,32) * 2; +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + +status = inSection(12); +pattern.lastIndex = Math.pow(2,40); +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + +status = inSection(14); +pattern.lastIndex = Number.MAX_VALUE; +actualmatch = pattern.exec(string); +expectedmatch = null; +addThis(); + + + +/****************************************************************************** + * + * Case 2: repeat all the above cases WITHOUT the global flag set. + * According to EMCA. |lastIndex| should get set to 0 before the match. + * + * Therefore re.exec(str) should be unaffected; thus our expected values + * below are now DIFFERENT when |lastIndex| is < 0 or > str.length + * + *****************************************************************************/ + +pattern = /abc/i; +string = 'AbcaBcabC'; + +status = inSection(16); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc'); +addThis(); + +status = inSection(17); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc'); // NOT Array('aBc') as before - +addThis(); + +status = inSection(18); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc'); // NOT Array('abC') as before - +addThis(); + +/* + * At this point above, |lastIndex| WAS > string.length, but not here - + */ +status = inSection(19); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +/* + * Now let's set |lastIndex| to -1 + */ +status = inSection(20); +pattern.lastIndex = -1; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +/* + * Now try some edge-case values. Thanks to the work done in + * http://bugzilla.mozilla.org/show_bug.cgi?id=124339, |lastIndex| + * is now stored as a double instead of a uint32_t (unsigned integer). + * + * Note 2^32 -1 is the upper bound for uint32's, but doubles can go + * all the way up to Number.MAX_VALUE. So that's why we need cases + * between those two numbers. + */ +status = inSection(21); +pattern.lastIndex = Math.pow(2,32); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(22); +pattern.lastIndex = -Math.pow(2,32); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(23); +pattern.lastIndex = Math.pow(2,32) + 1; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(24); +pattern.lastIndex = -(Math.pow(2,32) + 1); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(25); +pattern.lastIndex = Math.pow(2,32) * 2; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(26); +pattern.lastIndex = -Math.pow(2,32) * 2; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(27); +pattern.lastIndex = Math.pow(2,40); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before -; + addThis(); + +status = inSection(28); +pattern.lastIndex = -Math.pow(2,40); +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(29); +pattern.lastIndex = Number.MAX_VALUE; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + +status = inSection(30); +pattern.lastIndex = -Number.MAX_VALUE; +actualmatch = pattern.exec(string); +expectedmatch = Array('Abc') // NOT null as before - + addThis(); + + + + +//------------------------------------------------------------------------------------------------- +test(); +//------------------------------------------------------------------------------------------------- + + + +function addThis() +{ + statusmessages[i] = status; + patterns[i] = pattern; + strings[i] = string; + actualmatches[i] = actualmatch; + expectedmatches[i] = expectedmatch; + i++; +} + + +function test() +{ + printBugNumber(BUGNUMBER); + printStatus (summary); + testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches); +} |