lollipop-counter-test.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2020 Universita' di Firenze, Italy
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Tommaso Pecorella <tommaso.pecorella@unifi.it>
 */

#include "ns3/test.h"

#include "ns3/lollipop-counter.h"

#include <string>
#include <limits>

using namespace ns3;

class LollipopCounterTest : public TestCase
{

public:
  virtual void DoRun (void);
  LollipopCounterTest ();

};

LollipopCounterTest::LollipopCounterTest ()
  : TestCase ("Lollipop Counter implementation")
{
}

void
LollipopCounterTest::DoRun (void)
{

  LollipopCounter<uint8_t> counter8a;
  LollipopCounter<uint8_t> counter8b;

  bool greater;
  bool lesser;
  bool equal;
  bool isComparable;


  // tests with uint8_t
  counter8a = 240;
  counter8b = 5;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, true, "240 is greater than 5");
  NS_TEST_EXPECT_MSG_EQ (lesser, false, "240 is not lesser than 5");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "240 is not equal to 5");
  NS_TEST_EXPECT_MSG_EQ (isComparable, true, "240 is comparable with 5");

  counter8a = 250;
  counter8b = 5;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, false, "250 is not greater than 5");
  NS_TEST_EXPECT_MSG_EQ (lesser, true, "250 is lesser than 5");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "250 is not equal to 5");
  NS_TEST_EXPECT_MSG_EQ (isComparable, true, "250 is comparable with 5");

  counter8a = 127;
  counter8b = 1;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, false, "127 is not greater than 1");
  NS_TEST_EXPECT_MSG_EQ (lesser, true, "127 is lesser than 1");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "127 is not equal to 1");
  NS_TEST_EXPECT_MSG_EQ (isComparable, true, "127 is comparable with 1");

  counter8a = 127;
  counter8b = 115;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, true, "127 is greater than 115");
  NS_TEST_EXPECT_MSG_EQ (lesser, false, "127 is not lesser than 115");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "127 is not equal to 115");
  NS_TEST_EXPECT_MSG_EQ (isComparable, true, "127 is comparable with 115");

  counter8a = 127;
  counter8b = 100;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, false, "127 is not greater than 100");
  NS_TEST_EXPECT_MSG_EQ (lesser, false, "127 is not lesser than 100");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "127 is not equal to 100");
  NS_TEST_EXPECT_MSG_EQ (isComparable, false, "127 is not comparable with 100");

  counter8a = 12;
  counter8b = 233;

  greater = counter8a > counter8b;
  lesser = counter8a < counter8b;
  equal = counter8a == counter8b;
  isComparable = counter8a.IsComparable (counter8b);

  NS_TEST_EXPECT_MSG_EQ (greater, false, "12 is not greater than 233");
  NS_TEST_EXPECT_MSG_EQ (lesser, true, "12 is lesser than 233");
  NS_TEST_EXPECT_MSG_EQ (equal, false, "12 is not equal to 233");
  NS_TEST_EXPECT_MSG_EQ (isComparable, true, "12 is comparable with 233");

  counter8a = 255;
  counter8b = counter8a++;
  NS_TEST_EXPECT_MSG_EQ ((255 == counter8b), true, "Correct interpretation of postfix operator");
  NS_TEST_EXPECT_MSG_EQ ((0 == counter8a), true, "Correct interpretation of postfix operator");

  counter8a = 255;
  counter8b = ++counter8a;
  NS_TEST_EXPECT_MSG_EQ ((0 == counter8b), true, "Correct interpretation of prefix operator");
  NS_TEST_EXPECT_MSG_EQ ((0 == counter8a), true, "Correct interpretation of prefix operator");

}


class LolipopCounterTestSuite : public TestSuite
{
public:
  LolipopCounterTestSuite ();
private:
};

LolipopCounterTestSuite::LolipopCounterTestSuite ()
  : TestSuite ("lollipop-counter", UNIT)
{
  AddTestCase (new LollipopCounterTest (), TestCase::QUICK);
}

static LolipopCounterTestSuite g_lollipopCounterTestSuite;