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// Copyright 2017 The CRC32C Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "crc32c/crc32c.h"
#include <cstddef>
#include <cstdint>
#include <cstring>
#include "gtest/gtest.h"
#include "./crc32c_extend_unittests.h"
TEST(Crc32CTest, Crc32c) {
// From rfc3720 section B.4.
uint8_t buf[32];
std::memset(buf, 0, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa),
crc32c::Crc32c(buf, sizeof(buf)));
std::memset(buf, 0xff, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43),
crc32c::Crc32c(buf, sizeof(buf)));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<uint8_t>(i);
EXPECT_EQ(static_cast<uint32_t>(0x46dd794e),
crc32c::Crc32c(buf, sizeof(buf)));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<uint8_t>(31 - i);
EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c),
crc32c::Crc32c(buf, sizeof(buf)));
uint8_t data[48] = {
0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18, 0x28, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
EXPECT_EQ(static_cast<uint32_t>(0xd9963a56),
crc32c::Crc32c(data, sizeof(data)));
}
namespace crc32c {
struct ApiTestTraits {
static uint32_t Extend(uint32_t crc, const uint8_t* data, size_t count) {
return ::crc32c::Extend(crc, data, count);
}
};
INSTANTIATE_TYPED_TEST_SUITE_P(Api, ExtendTest, ApiTestTraits);
} // namespace crc32c
TEST(CRC32CTest, Crc32cCharPointer) {
char buf[32];
std::memset(buf, 0, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa),
crc32c::Crc32c(buf, sizeof(buf)));
std::memset(buf, 0xff, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43),
crc32c::Crc32c(buf, sizeof(buf)));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<char>(i);
EXPECT_EQ(static_cast<uint32_t>(0x46dd794e),
crc32c::Crc32c(buf, sizeof(buf)));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<char>(31 - i);
EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c),
crc32c::Crc32c(buf, sizeof(buf)));
}
TEST(CRC32CTest, Crc32cStdString) {
std::string buf;
buf.resize(32);
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<char>(0x00);
EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa), crc32c::Crc32c(buf));
for (size_t i = 0; i < 32; ++i)
buf[i] = '\xff';
EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43), crc32c::Crc32c(buf));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<char>(i);
EXPECT_EQ(static_cast<uint32_t>(0x46dd794e), crc32c::Crc32c(buf));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<char>(31 - i);
EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c), crc32c::Crc32c(buf));
}
#if __cplusplus > 201402L
#if __has_include(<string_view>)
TEST(CRC32CTest, Crc32cStdStringView) {
uint8_t buf[32];
std::string_view view(reinterpret_cast<const char*>(buf), sizeof(buf));
std::memset(buf, 0, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x8a9136aa), crc32c::Crc32c(view));
std::memset(buf, 0xff, sizeof(buf));
EXPECT_EQ(static_cast<uint32_t>(0x62a8ab43), crc32c::Crc32c(view));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<uint8_t>(i);
EXPECT_EQ(static_cast<uint32_t>(0x46dd794e), crc32c::Crc32c(view));
for (size_t i = 0; i < 32; ++i)
buf[i] = static_cast<uint8_t>(31 - i);
EXPECT_EQ(static_cast<uint32_t>(0x113fdb5c), crc32c::Crc32c(view));
}
#endif // __has_include(<string_view>)
#endif // __cplusplus > 201402L
#define TESTED_EXTEND Extend
#include "./crc32c_extend_unittests.h"
#undef TESTED_EXTEND
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