etl/test/test_ratio.cpp

/******************************************************************************
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Embedded Template Library.
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#include "unit_test_framework.h"

#include "etl/ratio.h"

#if ETL_USING_CPP11
namespace
{
  SUITE(test_ratio)
  {
    //*************************************************************************
    TEST(test_ratio_add)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;
      using r3 = etl::ratio_add<r1, r2>;

      CHECK((etl::ratio_equal<r3, etl::ratio<7, 6>>::value));
      CHECK((!etl::ratio_equal<r3, etl::ratio<1, 6>>::value));
    }

    //*************************************************************************
    TEST(test_ratio_subtract)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;
      using r3 = etl::ratio_subtract<r1, r2>;

      CHECK((etl::ratio_equal<r3, etl::ratio<-1, 6>>::value));
      CHECK((!etl::ratio_equal<r3, etl::ratio<-2, 6>>::value));
    }

    //*************************************************************************
    TEST(test_ratio_multiply)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;
      using r3 = etl::ratio_multiply<r1, r2>;

      CHECK((etl::ratio_equal<r3, etl::ratio<1, 3>>::value));
      CHECK((!etl::ratio_equal<r3, etl::ratio<1, 4>>::value));
    }

    //*************************************************************************
    TEST(test_ratio_divide)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;
      using r3 = etl::ratio_divide<r1, r2>;

      CHECK((!etl::ratio_not_equal<r3, etl::ratio<3, 4>>::value));
      CHECK((etl::ratio_not_equal<r3, etl::ratio<4, 3>>::value));
    }

    //*************************************************************************
    TEST(test_ratio_equal)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;

      CHECK((etl::ratio_equal<r1, r1>::value));
      CHECK((!etl::ratio_equal<r1, r2>::value));

#if ETL_USING_CPP14
      CHECK((etl::ratio_equal_v<r1, r1>));
      CHECK((!etl::ratio_equal_v<r1, r2>));
#endif
    }

    //*************************************************************************
    TEST(test_ratio_not_equal)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;

      CHECK((!etl::ratio_not_equal<r1, r1>::value));
      CHECK((etl::ratio_not_equal<r1, r2>::value));

#if ETL_USING_CPP14
      CHECK((!etl::ratio_not_equal_v<r1, r1>));
      CHECK((etl::ratio_not_equal_v<r1, r2>));
#endif
    }

    //*************************************************************************
    TEST(test_ratio_less)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;

      CHECK((etl::ratio_less<r1, r2>::value));
      CHECK((!etl::ratio_less<r2, r1>::value));

#if ETL_USING_CPP14
      CHECK((etl::ratio_less_v<r1, r2>));
      CHECK((!etl::ratio_less_v<r1, r1>));
#endif
    }

    //*************************************************************************
    TEST(test_ratio_less_equal)
    {
      using r1 = etl::ratio<1, 2>;
      using r2 = etl::ratio<2, 3>;

      CHECK((etl::ratio_less_equal<r1, r1>::value));
      CHECK((etl::ratio_less_equal<r1, r2>::value));

#if ETL_USING_CPP14
      CHECK((etl::ratio_less_equal_v<r1, r1>));
      CHECK((etl::ratio_less_equal_v<r1, r1>));
#endif
    }

    //*************************************************************************
    TEST(test_ratio_greater)
    {
      using r1 = etl::ratio<4, 3>;
      using r2 = etl::ratio<2, 3>;

      CHECK((etl::ratio_greater<r1, r2>::value));
      CHECK((!etl::ratio_greater<r2, r1>::value));

#if ETL_USING_CPP14
      CHECK((etl::ratio_greater_v<r1, r2>));
      CHECK((!etl::ratio_greater_v<r2, r1>));
#endif
    }

    //*************************************************************************
    TEST(test_ratio_greater_equal)
    {
      using r1 = etl::ratio<4, 3>;
      using r2 = etl::ratio<2, 3>;

      CHECK((etl::ratio_greater_equal<r1, r1>::value));
      CHECK((etl::ratio_greater_equal<r1, r2>::value));

#if ETL_USING_CPP14
      CHECK((etl::ratio_greater_equal_v<r1, r1>));
      CHECK((etl::ratio_greater_equal_v<r1, r2>));
#endif
    }
  };

}
#endif