1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/scoped_native_library.h"
7 #include "base/files/file_path.h"
10 #include "testing/gtest/include/gtest/gtest.h"
14 // Tests whether or not a function pointer retrieved via ScopedNativeLibrary
15 // is available only in a scope.
16 TEST(ScopedNativeLibrary
, Basic
) {
18 // Get the pointer to DirectDrawCreate() from "ddraw.dll" and verify it
19 // is valid only in this scope.
20 // FreeLibrary() doesn't actually unload a DLL until its reference count
21 // becomes zero, i.e. function pointer is still valid if the DLL used
22 // in this test is also used by another part of this executable.
23 // So, this test uses "ddraw.dll", which is not used by Chrome at all but
24 // installed on all versions of Windows.
25 const char kFunctionName
[] = "DirectDrawCreate";
26 NativeLibrary native_library
;
28 FilePath
path(GetNativeLibraryName(L
"ddraw"));
29 native_library
= LoadNativeLibrary(path
, NULL
);
30 ScopedNativeLibrary
library(native_library
);
31 FARPROC test_function
=
32 reinterpret_cast<FARPROC
>(library
.GetFunctionPointer(kFunctionName
));
33 EXPECT_EQ(0, IsBadCodePtr(test_function
));
35 GetFunctionPointerFromNativeLibrary(native_library
, kFunctionName
),
39 GetFunctionPointerFromNativeLibrary(native_library
, kFunctionName
));