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9f896f2581
The real Chromium base/bit_cast.h is in the base namespace. mini_chromium's version was just changed to be in the base namespace as well. Roll to the latest mini_chromium and scope all calls to bit_cast. Bug: chromium:1506769 Change-Id: I7b25ee512f67694ef6ed3d0250e4f6a6db151eb3 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5116880 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Avi Drissman <avi@chromium.org>
105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
// Copyright 2017 The Crashpad Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/misc/reinterpret_bytes.h"
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#include <stdint.h>
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#include <limits>
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#include "base/bit_cast.h"
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#include "gtest/gtest.h"
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#include "util/numeric/int128.h"
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namespace crashpad {
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namespace test {
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namespace {
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template <typename From, typename To>
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void ExpectReinterpret(From from, To* to, To expected) {
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ASSERT_TRUE(ReinterpretBytes(from, to));
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EXPECT_EQ(*to, expected);
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}
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template <typename From, typename To>
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void ExpectUnsignedEqual(From from, To* to) {
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To expected = static_cast<To>(from);
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ExpectReinterpret(from, to, expected);
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}
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TEST(ReinterpretBytes, ToUnsigned) {
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uint64_t from64, to64;
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uint32_t from32, to32;
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from32 = 0;
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ExpectUnsignedEqual(from32, &to32);
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ExpectUnsignedEqual(from32, &to64);
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from32 = std::numeric_limits<uint32_t>::max();
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ExpectUnsignedEqual(from32, &to32);
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ExpectUnsignedEqual(from32, &to64);
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from64 = 0;
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ExpectUnsignedEqual(from64, &to32);
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ExpectUnsignedEqual(from64, &to64);
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from64 = std::numeric_limits<uint64_t>::max();
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ExpectUnsignedEqual(from64, &to64);
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EXPECT_FALSE(ReinterpretBytes(from64, &to32));
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uint8_t to8 = std::numeric_limits<uint8_t>::max();
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uint128_struct from128;
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from128.lo = to8;
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from128.hi = 0;
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ExpectReinterpret(from128, &to8, to8);
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}
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TEST(ReinterpretBytes, ToSigned) {
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uint64_t from64;
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int64_t to64;
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int32_t to32;
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from64 = 0;
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ExpectReinterpret(from64, &to32, static_cast<int32_t>(0));
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ExpectReinterpret(from64, &to64, static_cast<int64_t>(0));
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to32 = -1;
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from64 = base::bit_cast<uint32_t>(to32);
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ExpectReinterpret(from64, &to32, to32);
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to32 = std::numeric_limits<int32_t>::max();
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from64 = base::bit_cast<uint32_t>(to32);
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ExpectReinterpret(from64, &to32, to32);
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to32 = std::numeric_limits<int32_t>::min();
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from64 = base::bit_cast<uint32_t>(to32);
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ExpectReinterpret(from64, &to32, to32);
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to64 = -1;
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from64 = base::bit_cast<uint64_t>(to64);
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ExpectReinterpret(from64, &to64, to64);
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to64 = std::numeric_limits<int64_t>::max();
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from64 = base::bit_cast<uint64_t>(to64);
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ExpectReinterpret(from64, &to64, to64);
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to64 = std::numeric_limits<int64_t>::min();
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from64 = base::bit_cast<uint64_t>(to64);
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ExpectReinterpret(from64, &to64, to64);
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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