crashpad/util/win/handle_test.cc
Mark Mentovai 2eeaa3ac54 win: Add HandleToInt() and IntToHandle()
This consolidates all of the twisted casts and comments that discuss how
HANDLEs are really only 32 bits wide even in 64-bit processes on 64-bit
operating systems into a single location.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1422503015 .
2015-11-05 14:00:26 -05:00

54 lines
1.8 KiB
C++

// Copyright 2015 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "util/win/handle.h"
#include <stdint.h>
#include <limits>
#include "gtest/gtest.h"
namespace crashpad {
namespace test {
namespace {
TEST(Handle, HandleToInt) {
EXPECT_EQ(0, HandleToInt(nullptr));
EXPECT_EQ(-1, HandleToInt(INVALID_HANDLE_VALUE));
EXPECT_EQ(1, HandleToInt(reinterpret_cast<HANDLE>(1)));
EXPECT_EQ(std::numeric_limits<int>::max(),
HandleToInt(reinterpret_cast<HANDLE>(
static_cast<intptr_t>(std::numeric_limits<int>::max()))));
EXPECT_EQ(std::numeric_limits<int>::min(),
HandleToInt(reinterpret_cast<HANDLE>(
static_cast<intptr_t>(std::numeric_limits<int>::min()))));
}
TEST(Handle, IntToHandle) {
EXPECT_EQ(nullptr, IntToHandle(0));
EXPECT_EQ(INVALID_HANDLE_VALUE, IntToHandle(-1));
EXPECT_EQ(reinterpret_cast<HANDLE>(1), IntToHandle(1));
EXPECT_EQ(reinterpret_cast<HANDLE>(
static_cast<intptr_t>(std::numeric_limits<int>::max())),
IntToHandle(std::numeric_limits<int>::max()));
EXPECT_EQ(reinterpret_cast<HANDLE>(
static_cast<intptr_t>(std::numeric_limits<int>::min())),
IntToHandle(std::numeric_limits<int>::min()));
}
} // namespace
} // namespace test
} // namespace crashpad