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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 <forward_list>
#include <seqan3/alphabet/nucleotide/dna4.hpp>
#include <seqan3/range/views/interleave.hpp>
#include <seqan3/range/views/take.hpp>
#include <seqan3/range/views/type_reduce.hpp>
#include <seqan3/std/ranges>
#include <seqan3/test/expect_range_eq.hpp>
#include <seqan3/test/pretty_printing.hpp>
#include <gtest/gtest.h>
using seqan3::operator""_dna4;
TEST(view_interleave, basic)
{
std::string u{"FOOBARBAXBAT"};
std::string i{"in"};
size_t s = 3;
std::string cmp{"FOOinBARinBAXinBAT"};
std::string cmp_rev{"TABni"};
size_t cmpsize = 18;
// pipe notation
// explicitly call seqan3::views::type_reduce
auto v0 = seqan3::views::type_reduce(u) | seqan3::views::interleave(s, seqan3::views::type_reduce(i));
EXPECT_RANGE_EQ(cmp, v0);
EXPECT_EQ(cmpsize, v0.size());
// don't call seqan3::views::type_reduce
auto v1 = u | seqan3::views::interleave(s, i);
EXPECT_RANGE_EQ(cmp, v1);
// function notation
// explicitly call seqan3::views::type_reduce
auto v2{seqan3::views::interleave(seqan3::views::type_reduce(u), s, seqan3::views::type_reduce(i))};
EXPECT_RANGE_EQ(cmp, v2);
// don't call seqan3::views::type_reduce
auto v3{seqan3::views::interleave(u, s, i)};
EXPECT_RANGE_EQ(cmp, v3);
//combinability
// explicitly call seqan3::views::type_reduce
auto v4 = seqan3::views::type_reduce(u)
| seqan3::views::interleave(s, seqan3::views::type_reduce(i))
| std::views::reverse
| seqan3::views::take(5);
EXPECT_RANGE_EQ(cmp_rev, v4);
// don't call seqan3::views::type_reduce
auto v5 = u | seqan3::views::interleave(s, i) | std::views::reverse | seqan3::views::take(5);
EXPECT_RANGE_EQ(cmp_rev, v5);
}
TEST(view_interleave, concepts)
{
// random_access_range, viewable_range, sized_range
std::string u{"FOOBARBAXBAT"};
std::string i{"in"};
size_t s = 3;
auto v1 = seqan3::detail::view_interleave(seqan3::views::type_reduce(u), s, seqan3::views::type_reduce(i));
EXPECT_TRUE(std::ranges::input_range<decltype(v1)>);
EXPECT_TRUE(std::ranges::forward_range<decltype(v1)>);
EXPECT_TRUE(std::ranges::bidirectional_range<decltype(v1)>);
EXPECT_TRUE(std::ranges::random_access_range<decltype(v1)>);
EXPECT_TRUE(std::ranges::view<decltype(v1)>);
EXPECT_TRUE(std::ranges::sized_range<decltype(v1)>);
EXPECT_TRUE(std::ranges::common_range<decltype(v1)>);
EXPECT_TRUE((std::ranges::output_range<decltype(v1), char>));
EXPECT_FALSE(std::ranges::contiguous_range<decltype(v1)>);
// forward_range, viewable_range
std::forward_list<seqan3::dna4> u2{'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4};
seqan3::dna4_vector i2{'G'_dna4};
auto v2 = seqan3::views::interleave(u2, s, i2);
EXPECT_TRUE(std::ranges::input_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::view<decltype(v2)>);
EXPECT_FALSE(std::ranges::forward_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::bidirectional_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::random_access_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::contiguous_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::sized_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::common_range<decltype(v2)>);
EXPECT_FALSE((std::ranges::output_range<decltype(v2), seqan3::dna4>));
}
TEST(view_interleave, chunk_join)
{
std::forward_list<seqan3::dna4> u{'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4, 'A'_dna4};
seqan3::dna4_vector i{'G'_dna4};
size_t s = 2;
seqan3::dna4_vector cmp{"AAGAAGAA"_dna4};
auto v1 = seqan3::views::interleave(u, s, i);
auto it = v1.begin();
for (auto c : cmp)
{
EXPECT_EQ(c, *it);
it++;
}
}
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