1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/proxy/testDirectProxyConstruct5.js b/js/src/jit-test/tests/proxy/testDirectProxyConstruct5.js
new file mode 100644
index 000000000..e86bc456f
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxyConstruct5.js
@@ -0,0 +1,14 @@
+load(libdir + "asserts.js");
+
+// Make sure that a proxy only has a [[Construct]] if the target does
+
+var handler = {};
+var p = new Proxy(Math.sin, handler);
+var r = Proxy.revocable(Math.sin, handler).proxy;
+
+assertThrowsInstanceOf(() => new p, TypeError, "Can't use 'new' on proxy with non-constructor target");
+assertThrowsInstanceOf(() => new r, TypeError, "Can't use 'new' on proxy with non-constructor target");
+// Better throw regardless of whether we have a handler trap.
+handler.construct = (() => ({}));
+assertThrowsInstanceOf(() => new p, TypeError, "Can't use 'new' on proxy with non-constructor target");
+assertThrowsInstanceOf(() => new r, TypeError, "Can't use 'new' on proxy with non-constructor target");