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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
#ifdef WITH_MODULE
import argparse;
#else
#include <argparse/argparse.hpp>
#endif
#include <doctest.hpp>
using doctest::test_suite;
TEST_CASE("Parse toggle arguments with default value" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("--verbose", "-v")
.default_value(false)
.implicit_value(true);
program.parse_args({"./test.exe"});
REQUIRE(program.get<bool>("--verbose") == false);
REQUIRE(program["--verbose"] == false);
}
TEST_CASE("Argument '-' is not an optional argument" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("input");
program.parse_args({"./test.exe", "-"});
REQUIRE(program.get<std::string>("input") == "-");
}
TEST_CASE("Argument '-' is not an optional argument but '-l' is" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("-l").flag();
program.add_argument("input");
program.parse_args({"./test.exe", "-l", "-"});
REQUIRE(program.get<bool>("-l") == true);
REQUIRE(program.get<std::string>("input") == "-");
}
TEST_CASE("Argument '-l' is an optional argument but '-' is not" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("-l").flag();
program.add_argument("input");
program.parse_args({"./test.exe", "-", "-l"});
REQUIRE(program.get<bool>("-l") == true);
REQUIRE(program.get<std::string>("input") == "-");
}
TEST_CASE("Parse toggle arguments with implicit value" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("--verbose").flag();
program.parse_args({"./test.exe", "--verbose"});
REQUIRE(program.get<bool>("--verbose") == true);
REQUIRE(program["--verbose"] == true);
REQUIRE(program["--verbose"] != false);
}
TEST_CASE("Parse multiple toggle arguments with implicit values" *
test_suite("optional_arguments")) {
argparse::ArgumentParser program("test");
program.add_argument("-a").flag();
program.add_argument("-u").flag();
program.add_argument("-x").flag();
program.parse_args({"./test.exe", "-a", "-x"});
REQUIRE(program.get<bool>("-a") == true);
REQUIRE(program.get<bool>("-u") == false);
REQUIRE(program.get<bool>("-x") == true);
}
TEST_CASE("Parse optional arguments of many values" *
test_suite("optional_arguments")) {
GIVEN("a program that accepts an optional argument of many values") {
argparse::ArgumentParser program("test");
program.add_argument("-i").remaining().scan<'i', int>();
WHEN("provided no argument") {
THEN("the program accepts it but gets nothing") {
REQUIRE_NOTHROW(program.parse_args({"test"}));
REQUIRE_THROWS_AS(program.get<std::vector<int>>("-i"),
std::logic_error);
}
}
WHEN("provided remaining arguments follow the option") {
program.parse_args({"test", "-i", "-42", "8", "100", "300"});
THEN("the optional parameter consumes all of them") {
auto inputs = program.get<std::vector<int>>("-i");
REQUIRE(inputs.size() == 4);
REQUIRE(inputs[0] == -42);
REQUIRE(inputs[1] == 8);
REQUIRE(inputs[2] == 100);
REQUIRE(inputs[3] == 300);
}
}
}
}
TEST_CASE("Parse 2 optional arguments of many values" *
test_suite("optional_arguments")) {
GIVEN("a program that accepts 2 optional arguments of many values") {
argparse::ArgumentParser program("test");
program.add_argument("-i")
.nargs(argparse::nargs_pattern::any)
.scan<'i', int>();
program.add_argument("-s").nargs(argparse::nargs_pattern::any);
WHEN("provided no argument") {
THEN("the program accepts it and gets empty container") {
REQUIRE_NOTHROW(program.parse_args({"test"}));
auto i = program.get<std::vector<int>>("-i");
REQUIRE(i.size() == 0);
auto s = program.get<std::vector<std::string>>("-s");
REQUIRE(s.size() == 0);
}
}
WHEN("provided 2 options with many arguments") {
program.parse_args({"test", "-i", "-42", "8", "100", "300", "-s", "ok",
"this", "works"});
THEN("the optional parameter consumes each arguments") {
auto i = program.get<std::vector<int>>("-i");
REQUIRE(i.size() == 4);
REQUIRE(i[0] == -42);
REQUIRE(i[1] == 8);
REQUIRE(i[2] == 100);
REQUIRE(i[3] == 300);
auto s = program.get<std::vector<std::string>>("-s");
REQUIRE(s.size() == 3);
REQUIRE(s[0] == "ok");
REQUIRE(s[1] == "this");
REQUIRE(s[2] == "works");
}
}
}
}
TEST_CASE("Parse an optional argument of many values"
" and a positional argument of many values" *
test_suite("optional_arguments")) {
GIVEN("a program that accepts an optional argument of many values"
" and a positional argument of many values") {
argparse::ArgumentParser program("test");
program.add_argument("-s").nargs(argparse::nargs_pattern::any);
program.add_argument("input").nargs(argparse::nargs_pattern::any);
WHEN("provided no argument") {
program.parse_args({"test"});
THEN("the program accepts it and gets empty containers") {
auto s = program.get<std::vector<std::string>>("-s");
REQUIRE(s.size() == 0);
auto input = program.get<std::vector<std::string>>("input");
REQUIRE(input.size() == 0);
}
}
WHEN("provided many arguments followed by an option with many arguments") {
program.parse_args({"test", "foo", "bar", "-s", "ok", "this", "works"});
THEN("the parameters consume each arguments") {
auto s = program.get<std::vector<std::string>>("-s");
REQUIRE(s.size() == 3);
REQUIRE(s[0] == "ok");
REQUIRE(s[1] == "this");
REQUIRE(s[2] == "works");
auto input = program.get<std::vector<std::string>>("input");
REQUIRE(input.size() == 2);
REQUIRE(input[0] == "foo");
REQUIRE(input[1] == "bar");
}
}
}
}
TEST_CASE("Parse arguments of different types" *
test_suite("optional_arguments")) {
using namespace std::literals;
argparse::ArgumentParser program("test");
program.add_argument("--this-argument-is-longer-than-any-sso-buffer-that-"
"makes-sense-unless-your-cache-line-is-this-long"s);
REQUIRE_NOTHROW(program.parse_args({"test"}));
program.add_argument("-string"s, "-string-view"sv, "-builtin")
.default_value(false)
.implicit_value(true);
program.parse_args({"test", "-string-view"});
REQUIRE(program["-string"sv] == true);
REQUIRE(program["-string-view"] == true);
REQUIRE(program["-builtin"s] == true);
}
|
