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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/jit-test/tests/cacheir/object-is-prototype-of.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/cacheir/object-is-prototype-of.js')
-rw-r--r-- | js/src/jit-test/tests/cacheir/object-is-prototype-of.js | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/object-is-prototype-of.js b/js/src/jit-test/tests/cacheir/object-is-prototype-of.js new file mode 100644 index 0000000000..1ecc441f47 --- /dev/null +++ b/js/src/jit-test/tests/cacheir/object-is-prototype-of.js @@ -0,0 +1,41 @@ +function testPrimitive() { + for (var i = 0; i < 100; ++i) { + // Null and undefined. + assertEq(Object.prototype.isPrototypeOf(null), false); + assertEq(Object.prototype.isPrototypeOf(void 0), false); + + // Primitive wrappers. + assertEq(String.prototype.isPrototypeOf(""), false); + assertEq(Number.prototype.isPrototypeOf(0), false); + assertEq(Boolean.prototype.isPrototypeOf(true), false); + assertEq(BigInt.prototype.isPrototypeOf(0n), false); + assertEq(Symbol.prototype.isPrototypeOf(Symbol.hasInstance), false); + } +} +testPrimitive(); + +function testObject() { + for (var i = 0; i < 100; ++i) { + assertEq(Object.prototype.isPrototypeOf({}), true); + assertEq(Object.prototype.isPrototypeOf([]), true); + + assertEq(Array.prototype.isPrototypeOf({}), false); + assertEq(Array.prototype.isPrototypeOf([]), true); + } +} +testObject(); + +function testProxy() { + var proxy = new Proxy({}, new Proxy({}, { + get(t, pk, r) { + assertEq(pk, "getPrototypeOf"); + return Reflect.get(t, pk, r); + } + })); + + for (var i = 0; i < 100; ++i) { + assertEq(Object.prototype.isPrototypeOf(proxy), true); + assertEq(Array.prototype.isPrototypeOf(proxy), false); + } +} +testProxy(); |