read-write-util-test.cc

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// Copyright 2012 Cloudera Inc.
//
// 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 <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <limits.h>
#include <gtest/gtest.h>
#include "exec/read-write-util.h"
#include "util/cpu-info.h"

#include "common/names.h"

namespace impala {

template<typename T>
void TestBigEndian(T value) {
  uint8_t buffer[sizeof(T)];
  ReadWriteUtil::PutInt(buffer, value);
  EXPECT_EQ(value, ReadWriteUtil::GetInt<T>(buffer));
}

// Test put and get of big endian values
TEST(ReadWriteUtil, BigEndian) {
  TestBigEndian<uint16_t>(0);
  TestBigEndian<uint16_t>(0xff);
  TestBigEndian<uint16_t>(0xffff);

  TestBigEndian<uint32_t>(0);
  TestBigEndian<uint32_t>(0xff);
  TestBigEndian<uint32_t>(0xffff);
  TestBigEndian<uint32_t>(0xffffff);
  TestBigEndian<uint32_t>(0xffffffff);
  
  TestBigEndian<uint64_t>(0);
  TestBigEndian<uint64_t>(0xff);
  TestBigEndian<uint64_t>(0xffff);
  TestBigEndian<uint64_t>(0xffffff);
  TestBigEndian<uint64_t>(0xffffffff);
  TestBigEndian<uint64_t>(0xffffffffff);
  TestBigEndian<uint64_t>(0xffffffffffff);
  TestBigEndian<uint64_t>(0xffffffffffffff);
}

}

int main(int argc, char **argv) {
  impala::CpuInfo::Init();
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}