etl/test/test_iterator.cpp

/******************************************************************************
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++.h"

#include "etl/iterator.h"

//#include <iterator>

namespace
{
  struct input : public std::iterator<std::input_iterator_tag, int>
  {

  };

  struct output : public std::iterator<std::output_iterator_tag, int>
  {

  };

  struct forward : public std::iterator<std::forward_iterator_tag, int>
  {

  };

  struct bidirectional : public std::iterator<std::bidirectional_iterator_tag, int>
  {

  };

  struct random : public std::iterator<std::random_access_iterator_tag, int>
  {

  };

  typedef int* pointer;
  typedef const int* const_pointer;
}

namespace
{
  SUITE(test_iterator)
  {
    // NOTE '!!' is required to keep GCC happy.

    TEST(test_input)
    {
      CHECK(!!etl::is_input_iterator<input>::value);
      CHECK(!etl::is_output_iterator<input>::value);
      CHECK(!etl::is_forward_iterator<input>::value);
      CHECK(!etl::is_bidirectional_iterator<input>::value);
      CHECK(!etl::is_random_iterator<input>::value);

      CHECK(!!etl::is_input_iterator_concept<input>::value);
      CHECK(!etl::is_output_iterator_concept<input>::value);
      CHECK(!etl::is_forward_iterator_concept<input>::value);
      CHECK(!etl::is_bidirectional_iterator_concept<input>::value);
      CHECK(!etl::is_random_iterator_concept<input>::value);
    }

    TEST(test_output)
    {
      CHECK(!etl::is_input_iterator<output>::value);
      CHECK(!!etl::is_output_iterator<output>::value);
      CHECK(!etl::is_forward_iterator<output>::value);
      CHECK(!etl::is_bidirectional_iterator<output>::value);
      CHECK(!etl::is_random_iterator<output>::value);

      CHECK(!etl::is_input_iterator_concept<output>::value);
      CHECK(etl::is_output_iterator_concept<output>::value == true);
      CHECK(!etl::is_forward_iterator_concept<output>::value);
      CHECK(!etl::is_bidirectional_iterator_concept<output>::value);
      CHECK(!etl::is_random_iterator_concept<output>::value);
    }

    TEST(test_forward)
    {
      CHECK(!etl::is_input_iterator<forward>::value);
      CHECK(!etl::is_output_iterator<forward>::value);
      CHECK(!!etl::is_forward_iterator<forward>::value);
      CHECK(!etl::is_bidirectional_iterator<forward>::value);
      CHECK(!etl::is_random_iterator<forward>::value);

      CHECK(!!etl::is_input_iterator_concept<forward>::value);
      CHECK(!!etl::is_output_iterator_concept<forward>::value);
      CHECK(!!etl::is_forward_iterator_concept<forward>::value);
      CHECK(!etl::is_bidirectional_iterator_concept<forward>::value);
      CHECK(!etl::is_random_iterator_concept<forward>::value);
    }

    TEST(test_bidirectional)
    {
      CHECK(!etl::is_input_iterator<bidirectional>::value);
      CHECK(!etl::is_output_iterator<bidirectional>::value);
      CHECK(!etl::is_forward_iterator<bidirectional>::value);
      CHECK(!!etl::is_bidirectional_iterator<bidirectional>::value);
      CHECK(!etl::is_random_iterator<bidirectional>::value);

      CHECK(!!etl::is_input_iterator_concept<bidirectional>::value);
      CHECK(!!etl::is_output_iterator_concept<bidirectional>::value);
      CHECK(!!etl::is_forward_iterator_concept<bidirectional>::value);
      CHECK(!!etl::is_bidirectional_iterator_concept<bidirectional>::value);
      CHECK(!etl::is_random_iterator_concept<bidirectional>::value);
    }

    TEST(test_random)
    {
      CHECK(!etl::is_input_iterator<random>::value);
      CHECK(!etl::is_output_iterator<random>::value);
      CHECK(!etl::is_forward_iterator<random>::value);
      CHECK(!etl::is_bidirectional_iterator<random>::value);
      CHECK(!!etl::is_random_iterator<random>::value);

      CHECK(!!etl::is_input_iterator_concept<random>::value);
      CHECK(!!etl::is_output_iterator_concept<random>::value);
      CHECK(!!etl::is_forward_iterator_concept<random>::value);
      CHECK(!!etl::is_bidirectional_iterator_concept<random>::value);
      CHECK(!!etl::is_random_iterator_concept<random>::value);
    }

    TEST(test_pointer)
    {
      CHECK(!etl::is_input_iterator<pointer>::value);
      CHECK(!etl::is_output_iterator<pointer>::value);
      CHECK(!etl::is_forward_iterator<pointer>::value);
      CHECK(!etl::is_bidirectional_iterator<pointer>::value);
      CHECK(!!etl::is_random_iterator<pointer>::value);

      CHECK(!!etl::is_input_iterator_concept<pointer>::value);
      CHECK(!!etl::is_output_iterator_concept<pointer>::value);
      CHECK(!!etl::is_forward_iterator_concept<pointer>::value);
      CHECK(!!etl::is_bidirectional_iterator_concept<pointer>::value);
      CHECK(!!etl::is_random_iterator_concept<pointer>::value);
    }

    TEST(test_const_pointer)
    {
      CHECK(!etl::is_input_iterator<const_pointer>::value);
      CHECK(!etl::is_output_iterator<const_pointer>::value);
      CHECK(!etl::is_forward_iterator<const_pointer>::value);
      CHECK(!etl::is_bidirectional_iterator<const_pointer>::value);
      CHECK(!!etl::is_random_iterator<const_pointer>::value);

      CHECK(!!etl::is_input_iterator_concept<const_pointer>::value);
      CHECK(!!etl::is_output_iterator_concept<const_pointer>::value);
      CHECK(!!etl::is_forward_iterator_concept<const_pointer>::value);
      CHECK(!!etl::is_bidirectional_iterator_concept<const_pointer>::value);
      CHECK(!!etl::is_random_iterator_concept<const_pointer>::value);
    }
  };
}