1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
// -----------------------------------------------------------------------------------------------------
// 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 <seqan3/core/type_traits/iterator.hpp>
#include <seqan3/core/type_traits/range.hpp>
#include <seqan3/range/views/persist.hpp>
#include <seqan3/range/views/repeat_n.hpp>
#include <seqan3/range/views/take.hpp>
#include <seqan3/std/algorithm>
#include <seqan3/std/ranges>
#include <seqan3/test/expect_range_eq.hpp>
TEST(general, construction)
{
// char
char chr{'A'};
auto v = seqan3::views::repeat_n(chr, 4);
EXPECT_TRUE((std::is_default_constructible_v<decltype(v)>));
EXPECT_TRUE((std::is_copy_constructible_v<decltype(v)>));
EXPECT_TRUE((std::is_move_constructible_v<decltype(v)>));
EXPECT_TRUE((std::is_copy_assignable_v<decltype(v)>));
EXPECT_TRUE((std::is_move_assignable_v<decltype(v)>));
// char const
char const chr_const{'A'};
auto v_const = seqan3::views::repeat_n(chr_const, 20);
EXPECT_TRUE((std::is_default_constructible_v<decltype(v_const)>));
EXPECT_TRUE((std::is_copy_constructible_v<decltype(v_const)>));
EXPECT_TRUE((std::is_move_constructible_v<decltype(v_const)>));
EXPECT_TRUE((std::is_copy_assignable_v<decltype(v_const)>));
EXPECT_TRUE((std::is_move_assignable_v<decltype(v_const)>));
}
TEST(general, concept)
{
char chr{'A'};
auto v = seqan3::views::repeat_n(chr, 10);
EXPECT_TRUE((std::ranges::range<decltype(v)>));
EXPECT_TRUE((std::ranges::input_range<decltype(v)>));
EXPECT_TRUE((std::ranges::forward_range<decltype(v)>));
EXPECT_TRUE((std::ranges::bidirectional_range<decltype(v)>));
EXPECT_TRUE((std::ranges::random_access_range<decltype(v)>));
EXPECT_FALSE((std::ranges::contiguous_range<decltype(v)>));
EXPECT_TRUE((std::ranges::view<decltype(v)>));
EXPECT_TRUE((std::ranges::sized_range<decltype(v)>));
EXPECT_FALSE((std::ranges::common_range<decltype(v)>));
EXPECT_TRUE((std::ranges::output_range<decltype(v), char>));
}
TEST(view, factory)
{
// const char
{
char const chr{'X'};
auto v = seqan3::views::repeat_n(chr, 3);
EXPECT_EQ(v.size(), 3u);
EXPECT_RANGE_EQ(v, (std::vector<char>{chr, chr, chr}));
}
// string
{
std::string str{"foobar"};
auto v = seqan3::views::repeat_n(str, 2);
EXPECT_EQ(v.size(), 2u);
EXPECT_EQ(*v.begin(), str);
EXPECT_EQ(v[0], str);
}
// view
{
auto view = std::string{"foobar"} | seqan3::views::persist | std::views::take(3);
auto v = seqan3::views::repeat_n(view, 5);
EXPECT_RANGE_EQ(*v.begin(), std::string{"foo"});
}
// combinability
{
std::string str{"foobar"};
auto v = seqan3::views::repeat_n(str, 2) | std::views::transform([] (auto & str) { return str.substr(3); });
EXPECT_RANGE_EQ(v, (std::vector<std::string>{"bar", "bar"}));
}
}
constexpr char constexpr_view()
{
char chr{'A'};
auto v = seqan3::views::repeat_n(chr, 10);
v[0] = 'X';
return *v.begin();
}
TEST(general, constexpr_context)
{
constexpr char val = constexpr_view();
EXPECT_EQ(val, 'X');
}
|
