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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/non262/Array/regress-130451.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/Array/regress-130451.js')
-rw-r--r-- | js/src/tests/non262/Array/regress-130451.js | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/regress-130451.js b/js/src/tests/non262/Array/regress-130451.js new file mode 100644 index 0000000000..3ccf3d9dff --- /dev/null +++ b/js/src/tests/non262/Array/regress-130451.js @@ -0,0 +1,182 @@ +/* -*- 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: 25 Mar 2002 + * SUMMARY: Array.prototype.sort() should not (re-)define .length + * See http://bugzilla.mozilla.org/show_bug.cgi?id=130451 + * + * From the ECMA-262 Edition 3 Final spec: + * + * NOTE: The sort function is intentionally generic; it does not require that + * its |this| value be an Array object. Therefore, it can be transferred to + * other kinds of objects for use as a method. Whether the sort function can + * be applied successfully to a host object is implementation-dependent. + * + * The interesting parts of this testcase are the contrasting expectations for + * Brendan's test below, when applied to Array objects vs. non-Array objects. + * + */ +//----------------------------------------------------------------------------- +var UBound = 0; +var BUGNUMBER = 130451; +var summary = 'Array.prototype.sort() should not (re-)define .length'; +var status = ''; +var statusitems = []; +var actual = ''; +var actualvalues = []; +var expect= ''; +var expectedvalues = []; +var arr = []; +var cmp = new Function(); + + +/* + * First: test Array.prototype.sort() on Array objects + */ +status = inSection(1); +arr = [0,1,2,3]; +cmp = function(x,y) {return x-y;}; +actual = arr.sort(cmp).length; +expect = 4; +addThis(); + +status = inSection(2); +arr = [0,1,2,3]; +cmp = function(x,y) {return y-x;}; +actual = arr.sort(cmp).length; +expect = 4; +addThis(); + +status = inSection(3); +arr = [0,1,2,3]; +cmp = function(x,y) {return x-y;}; +arr.length = 1; +actual = arr.sort(cmp).length; +expect = 1; +addThis(); + +/* + * This test is by Brendan. Setting arr.length to + * 2 and then 4 should cause elements to be deleted. + */ +arr = [0,1,2,3]; +cmp = function(x,y) {return x-y;}; +arr.sort(cmp); + +status = inSection(4); +actual = arr.join(); +expect = '0,1,2,3'; +addThis(); + +status = inSection(5); +actual = arr.length; +expect = 4; +addThis(); + +status = inSection(6); +arr.length = 2; +actual = arr.join(); +expect = '0,1'; +addThis(); + +status = inSection(7); +arr.length = 4; +actual = arr.join(); +expect = '0,1,,'; //<---- see how 2,3 have been lost +addThis(); + + + +/* + * Now test Array.prototype.sort() on non-Array objects + */ +status = inSection(8); +var obj = new Object(); +obj.sort = Array.prototype.sort; +obj.length = 4; +obj[0] = 0; +obj[1] = 1; +obj[2] = 2; +obj[3] = 3; +cmp = function(x,y) {return x-y;}; +actual = obj.sort(cmp).length; +expect = 4; +addThis(); + + +/* + * Here again is Brendan's test. Unlike the array case + * above, the setting of obj.length to 2 and then 4 + * should NOT cause elements to be deleted + */ +obj = new Object(); +obj.sort = Array.prototype.sort; +obj.length = 4; +obj[0] = 3; +obj[1] = 2; +obj[2] = 1; +obj[3] = 0; +cmp = function(x,y) {return x-y;}; +obj.sort(cmp); //<---- this is what triggered the buggy behavior below +obj.join = Array.prototype.join; + +status = inSection(9); +actual = obj.join(); +expect = '0,1,2,3'; +addThis(); + +status = inSection(10); +actual = obj.length; +expect = 4; +addThis(); + +status = inSection(11); +obj.length = 2; +actual = obj.join(); +expect = '0,1'; +addThis(); + +/* + * Before this bug was fixed, |actual| held the value '0,1,,' + * as in the Array-object case at top. This bug only occurred + * if Array.prototype.sort() had been applied to |obj|, + * as we have done higher up. + */ +status = inSection(12); +obj.length = 4; +actual = obj.join(); +expect = '0,1,2,3'; +addThis(); + + + + +//----------------------------------------------------------------------------- +test(); +//----------------------------------------------------------------------------- + + + +function addThis() +{ + statusitems[UBound] = status; + actualvalues[UBound] = actual; + expectedvalues[UBound] = expect; + UBound++; +} + + +function test() +{ + printBugNumber(BUGNUMBER); + printStatus(summary); + + for (var i=0; i<UBound; i++) + { + reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); + } +} |