Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/base/scoped_native_library_unittest.cc b/base/scoped_native_library_unittest.cc
new file mode 100644
index 0000000..035faa0
--- /dev/null
+++ b/base/scoped_native_library_unittest.cc
@@ -0,0 +1,43 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/scoped_native_library.h"
+#if defined(OS_WIN)
+#include "base/files/file_path.h"
+#endif
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace base {
+
+// Tests whether or not a function pointer retrieved via ScopedNativeLibrary
+// is available only in a scope.
+TEST(ScopedNativeLibrary, Basic) {
+#if defined(OS_WIN)
+ // Get the pointer to DirectDrawCreate() from "ddraw.dll" and verify it
+ // is valid only in this scope.
+ // FreeLibrary() doesn't actually unload a DLL until its reference count
+ // becomes zero, i.e. function pointer is still valid if the DLL used
+ // in this test is also used by another part of this executable.
+ // So, this test uses "ddraw.dll", which is not used by Chrome at all but
+ // installed on all versions of Windows.
+ const char kFunctionName[] = "DirectDrawCreate";
+ NativeLibrary native_library;
+ {
+ FilePath path(GetNativeLibraryName(L"ddraw"));
+ native_library = LoadNativeLibrary(path, NULL);
+ ScopedNativeLibrary library(native_library);
+ FARPROC test_function =
+ reinterpret_cast<FARPROC>(library.GetFunctionPointer(kFunctionName));
+ EXPECT_EQ(0, IsBadCodePtr(test_function));
+ EXPECT_EQ(
+ GetFunctionPointerFromNativeLibrary(native_library, kFunctionName),
+ test_function);
+ }
+ EXPECT_EQ(NULL,
+ GetFunctionPointerFromNativeLibrary(native_library, kFunctionName));
+#endif
+}
+
+} // namespace base
