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// Copyright (c) 2013, Kenton Varda <temporal@gmail.com>
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "endian.h"
#include <gtest/gtest.h>
namespace capnp {
namespace _ { // private
namespace {
#if CAPNP_DISABLE_ENDIAN_DETECTION
#define Endian EndianUnoptimized
#endif
TEST(Endian, Byte) {
byte bytes[] = {123, 45, 67, 89};
WireValue<uint8_t>* vals = reinterpret_cast<WireValue<uint8_t>*>(bytes);
EXPECT_EQ(123, vals[0].get());
EXPECT_EQ(45, vals[1].get());
EXPECT_EQ(67, vals[2].get());
EXPECT_EQ(89, vals[3].get());
vals[0].set(21);
vals[1].set(43);
vals[2].set(65);
vals[3].set(87);
EXPECT_EQ(21, bytes[0]);
EXPECT_EQ(43, bytes[1]);
EXPECT_EQ(65, bytes[2]);
EXPECT_EQ(87, bytes[3]);
}
TEST(Endian, TwoBytes) {
byte bytes[] = {0x12, 0x34, 0x56, 0x78};
WireValue<uint16_t>* vals = reinterpret_cast<WireValue<uint16_t>*>(bytes);
EXPECT_EQ(0x3412, vals[0].get());
EXPECT_EQ(0x7856, vals[1].get());
vals[0].set(0x2345);
vals[1].set(0x6789);
EXPECT_EQ(0x45, bytes[0]);
EXPECT_EQ(0x23, bytes[1]);
EXPECT_EQ(0x89, bytes[2]);
EXPECT_EQ(0x67, bytes[3]);
}
TEST(Endian, FourBytes) {
byte bytes[] = {0x12, 0x34, 0x56, 0x78};
WireValue<uint32_t>* vals = reinterpret_cast<WireValue<uint32_t>*>(bytes);
EXPECT_EQ(0x78563412u, vals[0].get());
vals[0].set(0x23456789);
EXPECT_EQ(0x89, bytes[0]);
EXPECT_EQ(0x67, bytes[1]);
EXPECT_EQ(0x45, bytes[2]);
EXPECT_EQ(0x23, bytes[3]);
}
TEST(Endian, EightBytes) {
byte bytes[] = {0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0};
WireValue<uint64_t>* vals = reinterpret_cast<WireValue<uint64_t>*>(bytes);
EXPECT_EQ(0xf0debc9a78563412, vals[0].get());
vals[0].set(0x23456789abcdef01);
EXPECT_EQ(0x01, bytes[0]);
EXPECT_EQ(0xef, bytes[1]);
EXPECT_EQ(0xcd, bytes[2]);
EXPECT_EQ(0xab, bytes[3]);
EXPECT_EQ(0x89, bytes[4]);
EXPECT_EQ(0x67, bytes[5]);
EXPECT_EQ(0x45, bytes[6]);
EXPECT_EQ(0x23, bytes[7]);
}
} // namespace
} // namespace _ (private)
} // namespace capnp