text: /*
   * Copyright (c) 2021 Arm Limited
   * All rights reserved
   *
   * The license below extends only to copyright in the software and shall
   * not be construed as granting a license to any other intellectual
   * property including but not limited to intellectual property relating
   * to a hardware implementation of the functionality of the software
   * licensed hereunder.  You may use the software subject to the license
   * terms below provided that you ensure that this notice is replicated
   * unmodified and in its entirety in all distributions of the software,
   * modified or unmodified, in source code or in binary form.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met: redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer;
   * 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;
   * neither the name of the copyright holders nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * 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 <gtest/gtest.h>
  
  #include <sstream>
  
  #include "base/temperature.hh"
  
  using namespace gem5;
  
  TEST(TemperatureTest, Constructor)
  {
      Temperature temp;
      EXPECT_EQ(temp, Temperature(0.0));
  }
  
  TEST(TemperatureTest, Conversion)
  {
      Temperature freezing(273.15);
  
      EXPECT_EQ(Temperature::fromKelvin(42.0), Temperature(42.0));
      EXPECT_EQ(Temperature::fromCelsius(0.0), freezing);
      EXPECT_EQ(Temperature::fromFahrenheit(32.0), freezing);
  
      EXPECT_EQ(freezing.toKelvin(), 273.15);
      EXPECT_EQ(freezing.toCelsius(), 0.0);
      EXPECT_EQ(Temperature(0).toFahrenheit(), -459.67);
  }
  
  TEST(TemperatureTest, Comparison)
  {
      EXPECT_TRUE(Temperature(2.0) < Temperature(3.0));
      EXPECT_FALSE(Temperature(2.0) < Temperature(2.0));
      EXPECT_FALSE(Temperature(2.0) < Temperature(1.0));
  
      EXPECT_FALSE(Temperature(2.0) > Temperature(3.0));
      EXPECT_FALSE(Temperature(2.0) > Temperature(2.0));
      EXPECT_TRUE(Temperature(2.0) > Temperature(1.0));
  
      EXPECT_TRUE(Temperature(2.0) <= Temperature(3.0));
      EXPECT_TRUE(Temperature(2.0) <= Temperature(2.0));
      EXPECT_FALSE(Temperature(2.0) <= Temperature(1.0));
  
      EXPECT_FALSE(Temperature(2.0) >= Temperature(3.0));
      EXPECT_TRUE(Temperature(2.0) >= Temperature(2.0));
      EXPECT_TRUE(Temperature(2.0) >= Temperature(1.0));
  
      EXPECT_TRUE(Temperature(2.0) == Temperature(2.0));
      EXPECT_FALSE(Temperature(2.0) == Temperature(3.0));
  
      EXPECT_FALSE(Temperature(2.0) != Temperature(2.0));
      EXPECT_TRUE(Temperature(2.0) != Temperature(3.0));
  }
  
  TEST(TemperatureTest, BinaryOperators)
  {
      EXPECT_EQ(Temperature(2.0) + Temperature(1.0), Temperature(3.0));
      EXPECT_EQ(Temperature(2.0) - Temperature(1.0), Temperature(1.0));
  
      EXPECT_EQ(Temperature(8.0) * 2.0, Temperature(16.0));
      EXPECT_EQ(2.0 * Temperature(8.0), Temperature(16.0));
      EXPECT_EQ(Temperature(8.0) / 2.0, Temperature(4.0));
  }
  
  TEST(TemperatureTest, AssignmentOperators)
  {
      Temperature temp1(0);
      temp1 += Temperature(1.0);
      EXPECT_EQ(temp1, Temperature(1.0));
  
      Temperature temp2(1.0);
      temp2 -= Temperature(1.0);
      EXPECT_EQ(temp2, Temperature(0.0));
  
      Temperature temp3(32.0);
      temp3 *= 2.0;
      EXPECT_EQ(temp3, Temperature(64.0));
  
      Temperature temp4(32.0);
      temp4 /= 2.0;
      EXPECT_EQ(temp4, Temperature(16.0));
  }
  
  TEST(TemperatureTest, OutStream)
  {
      Temperature temp(42);
      std::ostringstream ss;
      ss << "T: " << temp << std::endl;
      EXPECT_EQ("T: 42K\n", ss.str());
  }
  