diff --git a/clang/unittests/libclang/LibclangTest.cpp b/clang/unittests/libclang/LibclangTest.cpp
new file mode 100644
index 0000000..7048af9
--- /dev/null
+++ b/clang/unittests/libclang/LibclangTest.cpp
@@ -0,0 +1,17 @@
+//===- unittests/libclang/LibclangTest.cpp --- libclang tests -------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang-c/Index.h"
+#include "gtest/gtest.h"
+
+TEST(libclang, TestInvalidArgs) {
+  EXPECT_EQ(CXError_InvalidArguments,
+            clang_parseTranslationUnit2(0, 0, 0, 0, 0, 0, 0, 0));
+}
+