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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/Array/length-truncate-nonconfigurable-sparse.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/Array/length-truncate-nonconfigurable-sparse.js | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/length-truncate-nonconfigurable-sparse.js b/js/src/tests/non262/Array/length-truncate-nonconfigurable-sparse.js new file mode 100644 index 0000000000..a51fd40898 --- /dev/null +++ b/js/src/tests/non262/Array/length-truncate-nonconfigurable-sparse.js @@ -0,0 +1,110 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + * Contributor: + * Jeff Walden <jwalden+code@mit.edu> + */ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 858381; +var summary = + "Array length redefinition behavior with non-configurable elements"; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +function addDataProperty(obj, prop, value, enumerable, configurable, writable) +{ + var desc = + { enumerable: enumerable, + configurable: configurable, + writable: writable, + value: value }; + Object.defineProperty(obj, prop, desc); +} + +function nonstrict() +{ + var arr = [0, , 2, , , 5]; + + addDataProperty(arr, 31415926, "foo", true, true, true); + addDataProperty(arr, 123456789, "bar", true, true, false); + addDataProperty(arr, 8675309, "qux", false, true, true); + addDataProperty(arr, 1735039, "eit", false, true, false); + addDataProperty(arr, 987654321, "fun", false, true, false); + + // non-array indexes to spice things up + addDataProperty(arr, "foopy", "sdfsd", false, false, false); + addDataProperty(arr, 4294967296, "psych", true, false, false); + addDataProperty(arr, 4294967295, "psych", true, false, false); + + addDataProperty(arr, 27182818, "eep", false, false, false); + + // Truncate...but only as far as possible. + arr.length = 1; + + assertEq(arr.length, 27182819); + + var props = Object.getOwnPropertyNames(arr).sort(); + var expected = + ["0", "2", "5", "1735039", "8675309", "27182818", + "foopy", "4294967296", "4294967295", "length"].sort(); + + assertEq(props.length, expected.length); + for (var i = 0; i < props.length; i++) + assertEq(props[i], expected[i], "unexpected property: " + props[i]); +} +nonstrict(); + +function strict() +{ + "use strict"; + + var arr = [0, , 2, , , 5]; + + addDataProperty(arr, 31415926, "foo", true, true, true); + addDataProperty(arr, 123456789, "bar", true, true, false); + addDataProperty(arr, 8675309, "qux", false, true, true); + addDataProperty(arr, 1735039, "eit", false, true, false); + addDataProperty(arr, 987654321, "fun", false, true, false); + + // non-array indexes to spice things up + addDataProperty(arr, "foopy", "sdfsd", false, false, false); + addDataProperty(arr, 4294967296, "psych", true, false, false); + addDataProperty(arr, 4294967295, "psych", true, false, false); + + addDataProperty(arr, 27182818, "eep", false, false, false); + + try + { + arr.length = 1; + throw new Error("didn't throw?!"); + } + catch (e) + { + assertEq(e instanceof TypeError, true, + "non-configurable property should trigger TypeError, got " + e); + } + + assertEq(arr.length, 27182819); + + var props = Object.getOwnPropertyNames(arr).sort(); + var expected = + ["0", "2", "5", "1735039", "8675309", "27182818", + "foopy", "4294967296", "4294967295", "length"].sort(); + + assertEq(props.length, expected.length); + for (var i = 0; i < props.length; i++) + assertEq(props[i], expected[i], "unexpected property: " + props[i]); +} +strict(); + +/******************************************************************************/ + +if (typeof reportCompare === "function") + reportCompare(true, true); + +print("Tests complete"); |