kicad/thirdparty/argparse/test/test_help.cpp

76 lines
2.4 KiB
C++

#include <argparse/argparse.hpp>
#include <doctest.hpp>
#include <sstream>
using doctest::test_suite;
TEST_CASE("Users can format help message" * test_suite("help")) {
argparse::ArgumentParser program("test");
SUBCASE("Simple arguments") {
program.add_argument("input").help("positional input");
program.add_argument("-c").help("optional input");
}
SUBCASE("Default values") {
program.add_argument("-a").default_value(42);
program.add_argument("-b").default_value(4.4e-7);
program.add_argument("-c")
.default_value(std::vector<int>{1, 2, 3, 4, 5})
.nargs(5);
program.add_argument("-d").default_value("I am a string");
program.add_argument("-e").default_value(std::optional<float>{});
program.add_argument("-f").default_value(false);
}
std::ostringstream s;
s << program;
REQUIRE_FALSE(s.str().empty());
auto msg = program.help().str();
REQUIRE(msg == s.str());
}
TEST_CASE("Users can override the help options" * test_suite("help")) {
GIVEN("a program that meant to take -h as a normal option") {
argparse::ArgumentParser program("test");
program.add_argument("input");
program.add_argument("-h").implicit_value('h').default_value('x');
WHEN("provided -h without fulfilling other requirements") {
THEN("validation fails") {
REQUIRE_THROWS_AS(program.parse_args({"test", "-h"}),
std::runtime_error);
}
}
WHEN("provided arguments to all parameters") {
program.parse_args({"test", "-h", "some input"});
THEN("these parameters get their values") {
REQUIRE(program["-h"] == 'h');
REQUIRE(program.get("input") == "some input");
}
}
}
}
TEST_CASE("Users can disable default -h/--help" * test_suite("help")) {
argparse::ArgumentParser program("test", "1.0",
argparse::default_arguments::version);
REQUIRE_THROWS_AS(program.parse_args({"test", "-h"}), std::runtime_error);
}
TEST_CASE("Users can replace default -h/--help" * test_suite("help")) {
argparse::ArgumentParser program("test", "1.0",
argparse::default_arguments::version);
std::stringstream buffer;
program.add_argument("-h", "--help")
.action([&](const auto &) { buffer << program; })
.default_value(false)
.implicit_value(true)
.nargs(0);
REQUIRE(buffer.str().empty());
program.parse_args({"test", "--help"});
REQUIRE_FALSE(buffer.str().empty());
}