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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/Symbol/equality.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/Symbol/equality.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/non262/Symbol/equality.js b/js/src/tests/non262/Symbol/equality.js new file mode 100644 index 0000000000..eaa091ba43 --- /dev/null +++ b/js/src/tests/non262/Symbol/equality.js @@ -0,0 +1,30 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +// Symbol.for returns the same symbol whenever the same argument is passed. +assertEq(Symbol.for("q") === Symbol.for("q"), true); + +// Several distinct Symbol values. +var symbols = [ + Symbol(), + Symbol("Symbol.iterator"), + Symbol("Symbol.iterator"), // distinct new symbol with the same description + Symbol.for("Symbol.iterator"), + Symbol.iterator +]; + +// Distinct symbols are never equal to each other, even if they have the same +// description. +for (var i = 0; i < symbols.length; i++) { + for (var j = i; j < symbols.length; j++) { + var expected = (i === j); + assertEq(symbols[i] == symbols[j], expected); + assertEq(symbols[i] != symbols[j], !expected); + assertEq(symbols[i] === symbols[j], expected); + assertEq(symbols[i] !== symbols[j], !expected); + assertEq(Object.is(symbols[i], symbols[j]), expected); + } +} + +if (typeof reportCompare === "function") + reportCompare(0, 0); |