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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/extensions/regress-406572.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.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/extensions/regress-406572.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/regress-406572.js b/js/src/tests/non262/extensions/regress-406572.js new file mode 100644 index 0000000000..4911d05bc7 --- /dev/null +++ b/js/src/tests/non262/extensions/regress-406572.js @@ -0,0 +1,47 @@ +/* -*- 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/. */ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 406572; +var summary = 'JSOP_CLOSURE unconditionally replaces properties of the variable object - Browser only'; +var actual = ''; +var expect = ''; + +printBugNumber(BUGNUMBER); +printStatus (summary); + +if (typeof window != 'undefined') +{ + try { + actual = "FAIL: Unexpected exception thrown"; + + var win = window; + var windowString = String(window); + window = 1; + reportCompare(windowString, String(window), "window should be readonly"); + + if (1) + function window() { return 1; } + + // We should reach this line without throwing. Annex B means the + // block-scoped function above gets an assignment to 'window' in the + // nearest 'var' environment, but since 'window' is read-only, the + // assignment silently fails. + actual = ""; + + // The test harness might rely on window having its original value: + // restore it. + window = win; + } catch (e) { + } +} +else +{ + expect = actual = 'Test can only run in a Gecko 1.9 browser or later.'; + print(actual); +} +reportCompare(expect, actual, summary); + + |