blob: 763b45f6c36ad45c4a255ef5e38fb9ffe5fe8f55 [file] [log] [blame]
// 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"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#if defined(OS_WIN)
#include "base/files/file_path.h"
#include "base/strings/utf_string_conversions.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(FilePath::FromUTF8Unsafe(GetNativeLibraryName("ddraw")));
native_library = LoadNativeLibrary(path, nullptr);
ScopedNativeLibrary library(native_library);
EXPECT_EQ(native_library, library.get());
FARPROC test_function =
EXPECT_EQ(0, IsBadCodePtr(test_function));
GetFunctionPointerFromNativeLibrary(native_library, kFunctionName),
GetFunctionPointerFromNativeLibrary(native_library, kFunctionName));
} // namespace base