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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/misc/global-numeric-properties.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/misc/global-numeric-properties.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/non262/misc/global-numeric-properties.js b/js/src/tests/non262/misc/global-numeric-properties.js new file mode 100644 index 0000000000..352c0d3b75 --- /dev/null +++ b/js/src/tests/non262/misc/global-numeric-properties.js @@ -0,0 +1,59 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + */ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 537863; +var summary = + 'undefined, Infinity, and NaN global properties should not be writable'; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +var desc, old, error; +var global = this; + +var names = ["NaN", "Infinity", "undefined"]; + +for (var i = 0; i < names.length; i++) +{ + var name = names[i]; + desc = Object.getOwnPropertyDescriptor(global, name); + assertEq(desc !== undefined, true, name + " should be present"); + assertEq(desc.enumerable, false, name + " should not be enumerable"); + assertEq(desc.configurable, false, name + " should not be configurable"); + assertEq(desc.writable, false, name + " should not be writable"); + + old = global[name]; + global[name] = 17; + assertEq(global[name], old, name + " changed on setting?"); + + error = "before"; + try + { + throw new TypeError("SpiderMonkey doesn't currently implement " + + "strict-mode throwing when setting a readonly " + + "property, not running this bit of test for now; " + + "see bug 537873"); + + (function() { "use strict"; global[name] = 42; error = "didn't throw"; })(); + } + catch (e) + { + if (e instanceof TypeError) + error = "typeerror"; + else + error = "bad exception: " + e; + } + assertEq(error, "typeerror", "wrong strict mode error setting " + name); +} + +/******************************************************************************/ + +reportCompare(true, true); + +print("All tests passed!"); |