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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/property-inheritance.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/property-inheritance.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/non262/Symbol/property-inheritance.js b/js/src/tests/non262/Symbol/property-inheritance.js new file mode 100644 index 0000000000..2fe6189689 --- /dev/null +++ b/js/src/tests/non262/Symbol/property-inheritance.js @@ -0,0 +1,50 @@ +/* Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ */ + +var sym = Symbol.for("hello"); +function F() {} +var f = new F(); + +// inherited data property +F.prototype[sym] = "world"; +assertEq(sym in f, true); +assertEq(f.hasOwnProperty(sym), false); +assertEq(f[sym], "world"); + +// shadowing assignment +f[sym] = "kitty"; +assertEq(f[sym], "kitty"); +assertEq(F.prototype[sym], "world"); + +// deletion, revealing previously shadowed property +assertEq(delete f[sym], true); +assertEq(f.hasOwnProperty(sym), false); +assertEq(f[sym], "world"); + +// inherited accessor property +var value = undefined; +Object.defineProperty(F.prototype, sym, { + configurable: true, + get: function () { return 23; }, + set: function (v) { value = v; } +}); +assertEq(sym in f, true); +assertEq(f.hasOwnProperty(sym), false); +assertEq(f[sym], 23); +f[sym] = "gravity"; +assertEq(value, "gravity"); + +// inherited accessor property with no setter +Object.defineProperty(F.prototype, sym, { + set: undefined +}); +assertThrowsInstanceOf(function () { "use strict"; f[sym] = 0; }, TypeError); + +// deeply inherited accessor property +var g = Object.create(f); +for (var i = 0; i < 100; i++) + g = Object.create(g); +assertEq(g[sym], 23); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |