Add a unit test for Driver::getDefaultModuleCachePath().

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324917 91177308-0d34-0410-b5e6-96231b3b80d8

unittests/Driver/CMakeLists.txt

@@ -7,6 +7,7 @@ set(LLVM_LINK_COMPONENTS
 add_clang_unittest(ClangDriverTests
   DistroTest.cpp
   ToolChainTest.cpp
+  ModuleCacheTest.cpp
   MultilibTest.cpp
   )
 

unittests/Driver/ModuleCacheTest.cpp

@@ -0,0 +1,28 @@
+//===- unittests/Driver/ModuleCacheTest.cpp -------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Unit tests for the LLDB module cache API.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Driver/Driver.h"
+#include "gtest/gtest.h"
+using namespace clang;
+using namespace clang::driver;
+
+namespace {
+
+TEST(ModuleCacheTest, GetTargetAndMode) {
+  SmallString<128> Buf;
+  Driver::getDefaultModuleCachePath(Buf);
+  StringRef Path = Buf;
+  EXPECT_TRUE(Path.find("org.llvm.clang") != Path.npos);
+  EXPECT_TRUE(Path.endswith("ModuleCache"));  
+}
+} // end anonymous namespace.