1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testDifferentNewTargetInvokeConstructor.cpp b/js/src/jsapi-tests/testDifferentNewTargetInvokeConstructor.cpp
new file mode 100644
index 0000000000..1d623a78c2
--- /dev/null
+++ b/js/src/jsapi-tests/testDifferentNewTargetInvokeConstructor.cpp
@@ -0,0 +1,38 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "js/CallAndConstruct.h"  // JS::Construct
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testDifferentNewTargetInvokeConstructor) {
+  JS::RootedValue func(cx);
+  JS::RootedValue otherFunc(cx);
+
+  EVAL("(function() { /* This is a different new.target function */ })",
+       &otherFunc);
+
+  EVAL(
+      "(function(expected) { if (expected !== new.target) throw new "
+      "Error('whoops'); })",
+      &func);
+
+  JS::RootedValueArray<1> args(cx);
+  args[0].set(otherFunc);
+
+  JS::RootedObject obj(cx);
+
+  JS::RootedObject newTarget(cx, &otherFunc.toObject());
+
+  CHECK(JS::Construct(cx, func, newTarget, args, &obj));
+
+  // It should fail, though, if newTarget is not a constructor
+  JS::RootedValue plain(cx);
+  EVAL("({})", &plain);
+  args[0].set(plain);
+  newTarget = &plain.toObject();
+  CHECK(!JS::Construct(cx, func, newTarget, args, &obj));
+
+  return true;
+}
+END_TEST(testDifferentNewTargetInvokeConstructor)