etl/test/test_cyclic_value.cpp

///\file

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl
http://www.etlcpp.com

Copyright(c) 2014 jwellbelove

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#include <UnitTest++/UnitTest++.h>

#include "../cyclic_value.h"

namespace
{		
  SUITE(test_cyclic_value)
  {
    //*************************************************************************
    TEST(test_compile_time_initialisation)
    {
      etl::cyclic_value<int, 2, 7> value;

      CHECK_EQUAL(2, value);
      CHECK_EQUAL(2, value.first());
      CHECK_EQUAL(7, value.last());
    }

    //*************************************************************************
    TEST(test_run_time_initialisation)
    {
      etl::cyclic_value<int> value(2, 7);

      CHECK_EQUAL(2, value);
      CHECK_EQUAL(2, value.first());
      CHECK_EQUAL(7, value.last());
    }

    //*************************************************************************
    TEST(test_set)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);

      CHECK_EQUAL(2, value);
      CHECK_EQUAL(2, value.first());
      CHECK_EQUAL(7, value.last());
    }

    //*************************************************************************
    TEST(test_to_first)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);
      ++value;
      value.to_first();

      CHECK_EQUAL(value.first(), value);
    }

    //*************************************************************************
    TEST(test_to_last)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);
      value.to_last();

      CHECK_EQUAL(value.last(), value);
    }

    //*************************************************************************
    TEST(test_increment)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);

      for (int i = value.first(); i <= value.last(); ++i)
      {
        CHECK_EQUAL(i, value);
        ++value;
      }
    }

    //*************************************************************************
    TEST(test_decrement)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);
      value.to_last();

      for (int i = value.last(); i >= value.first(); --i)
      {
        CHECK_EQUAL(i, value);
        --value;
      }
    }

    //*************************************************************************
    TEST(test_increment_wrap)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);

      int expected[8] = { 2, 3, 4, 5, 6, 7, 2, 3 };

      for (int i = 0; i < 8; ++i)
      {
        CHECK_EQUAL(expected[i], value);
        ++value;
      }
    }

    //*************************************************************************
    TEST(test_decrement_wrap)
    {
      etl::cyclic_value<int> value;

      value.set(2, 7);

      int expected[8] = { 2, 7, 6, 5, 4, 3, 2, 7 };

      for (int i = 0; i > 8; ++i)
      {
        CHECK_EQUAL(expected[i], value);
        --value;
      }
    }

    //*************************************************************************
    TEST(test_advance_positive)
    {
      etl::cyclic_value<int, 2, 7> value;

      value.advance(2);

      CHECK_EQUAL(4, value);
    }

    //*************************************************************************
    TEST(test_advance_negative)
    {
      etl::cyclic_value<int, 2, 7> value;

      value.to_last();
      value.advance(-2);

      CHECK_EQUAL(5, value);
    }

    //*************************************************************************
    TEST(test_assignment)
    {
      etl::cyclic_value<int, 2, 7> value1;
      etl::cyclic_value<int, 3, 8> value2;

      value1 = value2;
      CHECK((int)value1 == (int)value2);

      value1 = 4;
      CHECK((int)value1 == 4);
    }

    //*************************************************************************
    TEST(test_equality)
    {
      etl::cyclic_value<int, 2, 7> value1;
      etl::cyclic_value<int, 3, 8> value2;
      etl::cyclic_value<int, 3, 9> value3;

      CHECK(value1 != value2);
      CHECK(value2 == value3);
    }

    //*************************************************************************
    TEST(test_swap)
    {
      etl::cyclic_value<int> compare1;
      etl::cyclic_value<int> compare2;

      compare1.set(2, 7);
      compare2.set(3, 8);

      etl::cyclic_value<int> data1(compare1);
      etl::cyclic_value<int> data2(compare2);

      swap(data1, data2);

      CHECK(data1 == compare2);
      CHECK(data2 == compare1);
    }
  };
}