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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/proxy/testDirectProxyKeys7.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/proxy/testDirectProxyKeys7.js')
-rw-r--r--js/src/jit-test/tests/proxy/testDirectProxyKeys7.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyKeys7.js b/js/src/jit-test/tests/proxy/testDirectProxyKeys7.js
new file mode 100644
index 000000000..448691930
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyKeys7.js
@@ -0,0 +1,16 @@
+load(libdir + "asserts.js");
+
+/*
+ * Throw a TypeError if the trap skips an existing own enumerable property on a
+ * non-extensible object
+ */
+var target = {};
+Object.defineProperty(target, 'foo', {
+ enumerable: true,
+ configurable: true
+});
+Object.preventExtensions(target);
+
+var handler = { ownKeys: () => [] };
+for (let p of [new Proxy(target, handler), Proxy.revocable(target, handler).proxy])
+ assertThrowsInstanceOf(() => Object.keys(p), TypeError);