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// 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 <windows.h>
#include <winternl.h>
#include "base/win/scoped_handle.h"
#include "base/win/windows_version.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace win {
TEST(ScopedHandleTest, ScopedHandle) {
// Any illegal error code will do. We just need to test that it is preserved
// by ScopedHandle to avoid bug 528394.
const DWORD magic_error = 0x12345678;
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
// Call SetLastError after creating the handle.
::SetLastError(magic_error);
base::win::ScopedHandle handle_holder(handle);
EXPECT_EQ(magic_error, ::GetLastError());
// Create a new handle and then set LastError again.
handle = ::CreateMutex(nullptr, FALSE, nullptr);
::SetLastError(magic_error);
handle_holder.Set(handle);
EXPECT_EQ(magic_error, ::GetLastError());
// Create a new handle and then set LastError again.
handle = ::CreateMutex(nullptr, FALSE, nullptr);
base::win::ScopedHandle handle_source(handle);
::SetLastError(magic_error);
handle_holder = handle_source.Pass();
EXPECT_EQ(magic_error, ::GetLastError());
}
// This test requires that the CloseHandle hook be in place.
#if !defined(DISABLE_HANDLE_VERIFIER_HOOKS)
TEST(ScopedHandleTest, ActiveVerifierCloseTracked) {
#if defined(_DEBUG)
// Handle hooks cause shutdown asserts in Debug on Windows 7. crbug.com/571304
if (base::win::GetVersion() < base::win::VERSION_WIN8)
return;
#endif
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
ASSERT_NE(HANDLE(NULL), handle);
ASSERT_DEATH({
base::win::ScopedHandle handle_holder(handle);
// Calling CloseHandle on a tracked handle should crash.
::CloseHandle(handle);
}, "CloseHandle called on tracked handle.");
}
#endif
TEST(ScopedHandleTest, ActiveVerifierTrackedHasBeenClosed) {
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
ASSERT_NE(HANDLE(NULL), handle);
typedef NTSTATUS(WINAPI * NtCloseFunc)(HANDLE);
NtCloseFunc ntclose = reinterpret_cast<NtCloseFunc>(
GetProcAddress(GetModuleHandle(L"ntdll.dll"), "NtClose"));
ASSERT_NE(nullptr, ntclose);
ASSERT_DEATH({
base::win::ScopedHandle handle_holder(handle);
ntclose(handle);
// Destructing a ScopedHandle with an illegally closed handle should fail.
}, "CloseHandle failed.");
}
TEST(ScopedHandleTest, ActiveVerifierDoubleTracking) {
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
ASSERT_NE(HANDLE(NULL), handle);
base::win::ScopedHandle handle_holder(handle);
ASSERT_DEATH({
base::win::ScopedHandle handle_holder2(handle);
}, "Attempt to start tracking already tracked handle.");
}
TEST(ScopedHandleTest, ActiveVerifierWrongOwner) {
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
ASSERT_NE(HANDLE(NULL), handle);
base::win::ScopedHandle handle_holder(handle);
ASSERT_DEATH({
base::win::ScopedHandle handle_holder2;
handle_holder2.handle_ = handle;
}, "Attempting to close a handle not owned by opener.");
ASSERT_TRUE(handle_holder.IsValid());
handle_holder.Close();
}
TEST(ScopedHandleTest, ActiveVerifierUntrackedHandle) {
HANDLE handle = ::CreateMutex(nullptr, FALSE, nullptr);
ASSERT_NE(HANDLE(NULL), handle);
ASSERT_DEATH({
base::win::ScopedHandle handle_holder;
handle_holder.handle_ = handle;
}, "Attempting to close an untracked handle.");
ASSERT_TRUE(::CloseHandle(handle));
}
} // namespace win
} // namespace base
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