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Diffstat (limited to 'js/src/jit-test/tests/proxy/testDirectProxyHas4.js')
-rw-r--r-- | js/src/jit-test/tests/proxy/testDirectProxyHas4.js | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyHas4.js b/js/src/jit-test/tests/proxy/testDirectProxyHas4.js new file mode 100644 index 0000000000..e2f88a7ddc --- /dev/null +++ b/js/src/jit-test/tests/proxy/testDirectProxyHas4.js @@ -0,0 +1,15 @@ +load(libdir + "asserts.js"); + +/* + * Throw a TypeError if the trap reports an existing own property as + * non-existent on a non-extensible object + */ +var target = {}; +Object.defineProperty(target, 'foo', { + configurable: true +}); +Object.preventExtensions(target); + +var handler = { has: () => false }; +for (let p of [new Proxy(target, handler), Proxy.revocable(target, handler).proxy]) + assertThrowsInstanceOf(function () { 'foo' in p }, TypeError); |