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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/scoped_native_library.h" | 5 #include "base/scoped_native_library.h" |
| 6 #if defined(OS_WIN) | |
| 7 #include "base/files/file_path.h" | |
| 8 #endif | |
| 9 | |
| 10 #include "testing/gtest/include/gtest/gtest.h" | 6 #include "testing/gtest/include/gtest/gtest.h" |
| 11 | 7 |
| 12 namespace base { | 8 namespace base { |
| 13 | 9 |
| 14 // Tests whether or not a function pointer retrieved via ScopedNativeLibrary | 10 // Tests whether or not a function pointer retrieved via ScopedNativeLibrary |
| 15 // is available only in a scope. | 11 // is available only in a scope. |
| 16 TEST(ScopedNativeLibrary, Basic) { | 12 TEST(ScopedNativeLibrary, Basic) { |
| 17 #if defined(OS_WIN) | |
| 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; | |
| 27 { | |
| 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)); | |
| 34 EXPECT_EQ( | |
| 35 GetFunctionPointerFromNativeLibrary(native_library, kFunctionName), | |
| 36 test_function); | |
| 37 } | |
| 38 EXPECT_EQ(NULL, | |
| 39 GetFunctionPointerFromNativeLibrary(native_library, kFunctionName)); | |
| 40 #endif | |
| 41 } | 13 } |
| 42 | 14 |
| 43 } // namespace base | 15 } // namespace base |
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