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// SPDX-FileCopyrightText: 2006-2025 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2025 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: BSD-3-Clause
#include <gtest/gtest.h>
#include <algorithm>
#include <iostream>
#include <ranges>
#include <seqan3/alphabet/detail/debug_stream_alphabet.hpp>
#include <seqan3/alphabet/nucleotide/dna5.hpp>
#include <seqan3/test/expect_range_eq.hpp>
#include <seqan3/utility/range/concept.hpp>
#include <seqan3/utility/views/deep.hpp>
namespace seqan3::views
{
inline auto const deep_reverse = deep{std::views::reverse};
inline auto const deep_take = deep{std::views::take};
inline auto const deep_take2 = deep{std::views::take(2)};
} // namespace seqan3::views
using seqan3::operator""_dna5;
// ------------------------------------------------------------------
// no parameters
// ------------------------------------------------------------------
TEST(view_deep_reverse, basic)
{
seqan3::dna5_vector foo{"ACGTA"_dna5};
// pipe notation, temporary
EXPECT_RANGE_EQ(foo | seqan3::views::deep{std::views::reverse}, "ATGCA"_dna5);
// pipe notation
EXPECT_RANGE_EQ(foo | seqan3::views::deep_reverse, "ATGCA"_dna5);
// function notation
EXPECT_RANGE_EQ(seqan3::views::deep_reverse(foo), "ATGCA"_dna5);
// combinability
EXPECT_RANGE_EQ(foo | seqan3::views::deep_reverse | std::views::reverse, "ACGTA"_dna5);
}
TEST(view_deep_reverse, deep)
{
std::vector<seqan3::dna5_vector> foo{"ACGTA"_dna5, "TGCAT"_dna5};
auto v = foo | seqan3::views::deep_reverse;
ASSERT_EQ(std::ranges::size(v), 2u);
EXPECT_RANGE_EQ(v[0], "ATGCA"_dna5);
EXPECT_RANGE_EQ(v[1], "TACGT"_dna5);
}
TEST(view_deep_reverse, concepts)
{
std::vector<seqan3::dna5_vector> vec{"ACGTA"_dna5, "TGCAT"_dna5};
EXPECT_TRUE(std::ranges::input_range<decltype(vec)>);
EXPECT_TRUE(std::ranges::forward_range<decltype(vec)>);
EXPECT_TRUE(std::ranges::bidirectional_range<decltype(vec)>);
EXPECT_TRUE(std::ranges::random_access_range<decltype(vec)>);
EXPECT_TRUE(std::ranges::contiguous_range<decltype(vec)>);
EXPECT_FALSE(std::ranges::view<decltype(vec)>);
EXPECT_TRUE(std::ranges::sized_range<decltype(vec)>);
EXPECT_TRUE(std::ranges::common_range<decltype(vec)>);
EXPECT_TRUE(seqan3::const_iterable_range<decltype(vec)>);
EXPECT_TRUE((std::ranges::output_range<decltype(vec), seqan3::dna5_vector>));
auto v1 = vec | seqan3::views::deep_reverse;
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_FALSE(std::ranges::contiguous_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(seqan3::const_iterable_range<decltype(v1)>);
EXPECT_FALSE(
(std::ranges::output_range<decltype(v1), seqan3::dna5_vector>)); // view temporary returned in deep case
auto v2 = v1 | std::views::reverse;
EXPECT_TRUE(std::ranges::input_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::forward_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::bidirectional_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::random_access_range<decltype(v2)>);
EXPECT_FALSE(std::ranges::contiguous_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::view<decltype(v2)>);
EXPECT_TRUE(std::ranges::sized_range<decltype(v2)>);
EXPECT_TRUE(std::ranges::common_range<decltype(v2)>);
EXPECT_TRUE(seqan3::const_iterable_range<decltype(v2)>);
EXPECT_FALSE(
(std::ranges::output_range<decltype(v2), seqan3::dna5_vector>)); // view temporary returned in deep case
// v_elem has type std::ranges::reverse_view<std::ranges::ref_view<std::vector<seqan3::dna5> > >
auto v_elem = v1[0];
EXPECT_TRUE(std::ranges::input_range<decltype(v_elem)>);
EXPECT_TRUE(std::ranges::forward_range<decltype(v_elem)>);
EXPECT_TRUE(std::ranges::bidirectional_range<decltype(v_elem)>);
EXPECT_TRUE(std::ranges::random_access_range<decltype(v_elem)>);
EXPECT_FALSE(std::ranges::contiguous_range<decltype(v_elem)>); // reverse_view drops contiguous_range
EXPECT_TRUE(std::ranges::view<decltype(v_elem)>);
EXPECT_TRUE(std::ranges::sized_range<decltype(v_elem)>);
EXPECT_TRUE(std::ranges::common_range<decltype(v_elem)>);
EXPECT_TRUE(seqan3::const_iterable_range<decltype(v_elem)>);
EXPECT_TRUE((std::ranges::output_range<decltype(v_elem), seqan3::dna5>));
}
// ------------------------------------------------------------------
// parameters preserved
// ------------------------------------------------------------------
TEST(view_deep_take, basic)
{
seqan3::dna5_vector foo{"ACGTA"_dna5};
// pipe notation, temporary
EXPECT_RANGE_EQ(foo | seqan3::views::deep{std::views::take}(2), "AC"_dna5);
// pipe notation
EXPECT_RANGE_EQ(foo | seqan3::views::deep_take(2), "AC"_dna5);
// function notation
EXPECT_RANGE_EQ(seqan3::views::deep_take(foo, 2), "AC"_dna5);
// combinability
EXPECT_RANGE_EQ(foo | seqan3::views::deep_take(2) | std::views::reverse, "CA"_dna5);
}
TEST(view_deep_take, deep)
{
std::vector<seqan3::dna5_vector> foo{"ACGTA"_dna5, "TGCAT"_dna5, "FOO"_dna5};
// pipe notation
auto v = foo | seqan3::views::deep_take(2);
ASSERT_EQ(std::ranges::size(v), 3u);
EXPECT_RANGE_EQ(v[0], "AC"_dna5);
EXPECT_RANGE_EQ(v[1], "TG"_dna5);
EXPECT_RANGE_EQ(v[2], "NN"_dna5);
int i = 2;
auto v2 = foo | seqan3::views::deep_take(i);
ASSERT_EQ(std::ranges::size(v2), 3u);
EXPECT_RANGE_EQ(v2[0], "AC"_dna5);
EXPECT_RANGE_EQ(v2[1], "TG"_dna5);
EXPECT_RANGE_EQ(v2[2], "NN"_dna5);
// function notation
auto v3 = seqan3::views::deep_take(foo, 2);
ASSERT_EQ(std::ranges::size(v3), 3u);
EXPECT_RANGE_EQ(v3[0], "AC"_dna5);
EXPECT_RANGE_EQ(v3[1], "TG"_dna5);
EXPECT_RANGE_EQ(v3[2], "NN"_dna5);
}
// ------------------------------------------------------------------
// parameters hardcoded
// ------------------------------------------------------------------
TEST(view_deep_take2, basic)
{
seqan3::dna5_vector foo{"ACGTA"_dna5};
// pipe notation, temporary
EXPECT_RANGE_EQ(foo | seqan3::views::deep{std::views::take(2)}, "AC"_dna5);
// pipe notation
EXPECT_RANGE_EQ(foo | seqan3::views::deep_take2, "AC"_dna5);
// function notation
EXPECT_RANGE_EQ(seqan3::views::deep_take2(foo), "AC"_dna5);
// combinability
EXPECT_RANGE_EQ(foo | seqan3::views::deep_take2 | std::views::reverse, "CA"_dna5);
}
TEST(view_deep_take2, deep)
{
std::vector<seqan3::dna5_vector> foo{"ACGTA"_dna5, "TGCAT"_dna5, "FOO"_dna5};
// pipe notation
auto v = foo | seqan3::views::deep_take2;
ASSERT_EQ(std::ranges::size(v), 3u);
EXPECT_RANGE_EQ(v[0], "AC"_dna5);
EXPECT_RANGE_EQ(v[1], "TG"_dna5);
EXPECT_RANGE_EQ(v[2], "NN"_dna5);
// function notation
auto v2 = seqan3::views::deep_take2(foo);
ASSERT_EQ(std::ranges::size(v2), 3u);
EXPECT_RANGE_EQ(v2[0], "AC"_dna5);
EXPECT_RANGE_EQ(v2[1], "TG"_dna5);
EXPECT_RANGE_EQ(v2[2], "NN"_dna5);
}
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