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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/tests/non262/Symbol/for.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/Symbol/for.js')
-rw-r--r-- | js/src/tests/non262/Symbol/for.js | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/non262/Symbol/for.js b/js/src/tests/non262/Symbol/for.js new file mode 100644 index 0000000000..43e2855113 --- /dev/null +++ b/js/src/tests/non262/Symbol/for.js @@ -0,0 +1,31 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +// Symbol.for called twice with the same argument returns the same symbol. +assertEq(Symbol.for("ponies"), Symbol.for("ponies")); + +// Called twice with equal strings: still the same result. +var one = Array(64+1).join("x"); +var two = Array(8+1).join(Array(8+1).join("x")); +assertEq(Symbol.for(one), Symbol.for(two)); + +// Symbols created by calling Symbol() are not in the symbol registry. +var sym = Symbol("123"); +assertEq(Symbol.for("123") !== sym, true); + +// Empty string is fine. +assertEq(typeof Symbol.for(""), "symbol"); + +// Primitive arguments. +assertEq(Symbol.for(3), Symbol.for("3")); +assertEq(Symbol.for(null), Symbol.for("null")); +assertEq(Symbol.for(undefined), Symbol.for("undefined")); +assertEq(Symbol.for(), Symbol.for("undefined")); + +// Symbol.for ignores the 'this' value. +var foo = Symbol.for("foo") +assertEq(Symbol.for.call(String, "foo"), foo); +assertEq(Symbol.for.call(3.14, "foo"), foo); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |