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-rw-r--r--js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions2.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions2.js b/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions2.js
new file mode 100644
index 000000000..42591e22c
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions2.js
@@ -0,0 +1,25 @@
+/*
+ * Call the trap with the handler as the this value and the target as the first
+ * argument.
+ */
+var target = {};
+var handler = {
+ preventExtensions: function (target1) {
+ assertEq(this, handler);
+ assertEq(target1, target);
+ Object.preventExtensions(target1);
+ called = true;
+ return true;
+ }
+};
+
+var proxy = new Proxy(target, handler);
+var called = false;
+Object.preventExtensions(proxy);
+assertEq(called, true);
+
+target = {};
+proxy = Proxy.revocable(target, handler).proxy;
+called = false;
+Object.preventExtensions(proxy);
+assertEq(called, true);