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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2020, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2020, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
#include <gtest/gtest.h>
#include "auxiliary_iterator.hpp"
TEST(iterator_concepts, readable)
{
EXPECT_TRUE((std::indirectly_readable<input_iterator>));
EXPECT_TRUE((!std::indirectly_readable<output_iterator>));
EXPECT_TRUE((std::indirectly_readable<forward_iterator>));
EXPECT_TRUE((std::indirectly_readable<bidirectional_iterator>));
EXPECT_TRUE((std::indirectly_readable<random_access_iterator>));
EXPECT_TRUE((std::indirectly_readable<forward_iterator_const>));
EXPECT_TRUE((std::indirectly_readable<bidirectional_iterator_const>));
EXPECT_TRUE((std::indirectly_readable<random_access_iterator_const>));
}
TEST(iterator_concepts, writable)
{
EXPECT_TRUE((!std::indirectly_writable<input_iterator, char>));
EXPECT_TRUE((std::indirectly_writable<output_iterator, char>));
EXPECT_TRUE((std::indirectly_writable<forward_iterator, char>));
EXPECT_TRUE((!std::indirectly_writable<forward_iterator_const, char>));
EXPECT_TRUE((std::indirectly_writable<bidirectional_iterator, char>));
EXPECT_TRUE((!std::indirectly_writable<bidirectional_iterator_const, char>));
EXPECT_TRUE((std::indirectly_writable<random_access_iterator, char>));
EXPECT_TRUE((!std::indirectly_writable<random_access_iterator_const, char>));
}
TEST(iterator_concepts, weakly_incrementable)
{
EXPECT_TRUE((std::weakly_incrementable<input_iterator>));
EXPECT_TRUE((std::weakly_incrementable<output_iterator>));
EXPECT_TRUE((std::weakly_incrementable<forward_iterator>));
EXPECT_TRUE((std::weakly_incrementable<forward_iterator_const>));
EXPECT_TRUE((std::weakly_incrementable<bidirectional_iterator>));
EXPECT_TRUE((std::weakly_incrementable<bidirectional_iterator_const>));
EXPECT_TRUE((std::weakly_incrementable<random_access_iterator>));
EXPECT_TRUE((std::weakly_incrementable<random_access_iterator_const>));
}
TEST(iterator_concepts, incrementable)
{
EXPECT_TRUE((std::incrementable<input_iterator>));
EXPECT_TRUE((!std::incrementable<output_iterator>));
EXPECT_TRUE((std::incrementable<forward_iterator>));
EXPECT_TRUE((std::incrementable<forward_iterator_const>));
EXPECT_TRUE((std::incrementable<bidirectional_iterator>));
EXPECT_TRUE((std::incrementable<bidirectional_iterator_const>));
EXPECT_TRUE((std::incrementable<random_access_iterator>));
EXPECT_TRUE((std::incrementable<random_access_iterator_const>));
}
TEST(iterator_concepts, Iterator)
{
EXPECT_TRUE((std::input_or_output_iterator<input_iterator>));
EXPECT_TRUE((std::input_or_output_iterator<output_iterator>));
EXPECT_TRUE((std::input_or_output_iterator<forward_iterator>));
EXPECT_TRUE((std::input_or_output_iterator<forward_iterator_const>));
EXPECT_TRUE((std::input_or_output_iterator<bidirectional_iterator>));
EXPECT_TRUE((std::input_or_output_iterator<bidirectional_iterator_const>));
EXPECT_TRUE((std::input_or_output_iterator<random_access_iterator>));
EXPECT_TRUE((std::input_or_output_iterator<random_access_iterator_const>));
}
TEST(iterator_concepts, sentinel_for)
{
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
input_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
output_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
forward_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
forward_iterator_const>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
bidirectional_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
bidirectional_iterator_const>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
random_access_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sentinel<char>,
random_access_iterator_const>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
input_iterator>,
input_iterator>));
EXPECT_TRUE((std::is_same_v<char, input_or_output_iter_value_t<std::cpp20::ostream_iterator<char>>>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
output_iterator>,
output_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
forward_iterator>,
forward_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
forward_iterator_const>,
forward_iterator_const>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
bidirectional_iterator>,
bidirectional_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
bidirectional_iterator_const>,
bidirectional_iterator_const>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
random_access_iterator>,
random_access_iterator>));
EXPECT_TRUE((std::sentinel_for<test_sized_sentinel<
random_access_iterator_const>,
random_access_iterator_const>));
}
TEST(iterator_concepts, sized_sentinel_for)
{
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
input_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
output_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
forward_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
forward_iterator_const>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
bidirectional_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
bidirectional_iterator_const>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
random_access_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sentinel<char>,
random_access_iterator_const>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
input_iterator>,
input_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
output_iterator>,
output_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
forward_iterator>,
forward_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
forward_iterator_const>,
forward_iterator_const>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
bidirectional_iterator>,
bidirectional_iterator>));
EXPECT_TRUE((!std::sized_sentinel_for<test_sized_sentinel<
bidirectional_iterator_const>,
bidirectional_iterator_const>));
EXPECT_TRUE((std::sized_sentinel_for<test_sized_sentinel<
random_access_iterator>,
random_access_iterator>));
EXPECT_TRUE((std::sized_sentinel_for<test_sized_sentinel<
random_access_iterator_const>,
random_access_iterator_const>));
}
TEST(iterator_concepts, output_iterator)
{
EXPECT_TRUE((!std::output_iterator<input_iterator, char>));
EXPECT_TRUE((std::output_iterator<output_iterator, char>));
EXPECT_TRUE((std::output_iterator<forward_iterator, char>));
EXPECT_TRUE((!std::output_iterator<forward_iterator_const, char>));
EXPECT_TRUE((std::output_iterator<bidirectional_iterator, char>));
EXPECT_TRUE((!std::output_iterator<bidirectional_iterator_const, char>));
EXPECT_TRUE((std::output_iterator<random_access_iterator, char>));
EXPECT_TRUE((!std::output_iterator<random_access_iterator_const, char>));
}
TEST(iterator_concepts, input_iterator)
{
EXPECT_TRUE((std::input_iterator<input_iterator>));
EXPECT_TRUE((!std::input_iterator<output_iterator>));
EXPECT_TRUE((std::input_iterator<forward_iterator>));
EXPECT_TRUE((std::input_iterator<forward_iterator_const>));
EXPECT_TRUE((std::input_iterator<bidirectional_iterator>));
EXPECT_TRUE((std::input_iterator<bidirectional_iterator_const>));
EXPECT_TRUE((std::input_iterator<random_access_iterator>));
EXPECT_TRUE((std::input_iterator<random_access_iterator_const>));
}
TEST(iterator_concepts, forward_iterator)
{
EXPECT_TRUE((!std::forward_iterator<input_iterator>));
EXPECT_TRUE((!std::forward_iterator<output_iterator>));
EXPECT_TRUE((std::forward_iterator<forward_iterator>));
EXPECT_TRUE((std::forward_iterator<forward_iterator_const>));
EXPECT_TRUE((std::forward_iterator<bidirectional_iterator>));
EXPECT_TRUE((std::forward_iterator<bidirectional_iterator_const>));
EXPECT_TRUE((std::forward_iterator<random_access_iterator>));
EXPECT_TRUE((std::forward_iterator<random_access_iterator_const>));
}
TEST(iterator_concepts, bidirectional_iterator)
{
EXPECT_TRUE((!std::bidirectional_iterator<input_iterator>));
EXPECT_TRUE((!std::bidirectional_iterator<output_iterator>));
EXPECT_TRUE((!std::bidirectional_iterator<forward_iterator>));
EXPECT_TRUE((!std::bidirectional_iterator<forward_iterator_const>));
EXPECT_TRUE((std::bidirectional_iterator<bidirectional_iterator>));
EXPECT_TRUE((std::bidirectional_iterator<bidirectional_iterator_const>));
EXPECT_TRUE((std::bidirectional_iterator<random_access_iterator>));
EXPECT_TRUE((std::bidirectional_iterator<random_access_iterator_const>));
}
TEST(iterator_concepts, random_access_iterator)
{
EXPECT_TRUE((!std::random_access_iterator<input_iterator>));
EXPECT_TRUE((!std::random_access_iterator<output_iterator>));
EXPECT_TRUE((!std::random_access_iterator<forward_iterator>));
EXPECT_TRUE((!std::random_access_iterator<forward_iterator_const>));
EXPECT_TRUE((!std::random_access_iterator<bidirectional_iterator>));
EXPECT_TRUE((!std::random_access_iterator<bidirectional_iterator_const>));
EXPECT_TRUE((std::random_access_iterator<random_access_iterator>));
EXPECT_TRUE((std::random_access_iterator<random_access_iterator_const>));
}
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