mirror of
https://github.com/KeqingMoe/argparse.git
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991df83d97
This kind of argument works as if having the "remaining" nargs, inspired by Python's `argparse.REMAINDER`. This change also reduces the size of `Argument` by 8 bytes. See also: https://docs.python.org/2/library/argparse.html#nargs fixes: p-ranav/argparse#17
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
#pragma once
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#include <catch.hpp>
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#include <argparse.hpp>
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TEST_CASE("Parse toggle arguments with default value", "[optional_arguments]") {
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argparse::ArgumentParser program("test");
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program.add_argument("--verbose", "-v")
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.default_value(false)
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.implicit_value(true);
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program.parse_args({ "./test.exe" });
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REQUIRE(program.get<bool>("--verbose") == false);
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REQUIRE(program["--verbose"] == false);
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}
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TEST_CASE("Parse toggle arguments with implicit value", "[optional_arguments]") {
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argparse::ArgumentParser program("test");
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program.add_argument("--verbose")
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.default_value(false)
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.implicit_value(true);
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program.parse_args({ "./test.exe", "--verbose" });
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REQUIRE(program.get<bool>("--verbose") == true);
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REQUIRE(program["--verbose"] == true);
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REQUIRE(program["--verbose"] != false);
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}
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TEST_CASE("Parse multiple toggle arguments with implicit values", "[optional_arguments]") {
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argparse::ArgumentParser program("test");
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program.add_argument("-a")
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.default_value(false)
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.implicit_value(true);
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program.add_argument("-u")
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.default_value(false)
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.implicit_value(true);
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program.add_argument("-x")
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.default_value(false)
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.implicit_value(true);
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program.parse_args({ "./test.exe", "-a", "-x" });
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REQUIRE(program.get<bool>("-a") == true);
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REQUIRE(program.get<bool>("-u") == false);
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REQUIRE(program.get<bool>("-x") == true);
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}
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TEST_CASE("Parse optional arguments of many values", "[optional_arguments]") {
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GIVEN("a program that accepts an optional argument of many values") {
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argparse::ArgumentParser program("test");
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program.add_argument("-i").remaining().action(
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[](const std::string &value) { return std::stoi(value); });
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WHEN("provided no argument") {
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THEN("the program accepts it but gets nothing") {
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REQUIRE_NOTHROW(program.parse_args({"test"}));
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REQUIRE_THROWS_AS(program.get<std::vector<int>>("-i"),
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std::logic_error);
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}
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}
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WHEN("provided remaining arguments follow the option") {
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program.parse_args({"test", "-i", "-42", "8", "100", "300"});
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THEN("the optional parameter consumes all of them") {
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auto inputs = program.get<std::vector<int>>("-i");
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REQUIRE(inputs.size() == 4);
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REQUIRE(inputs[0] == -42);
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REQUIRE(inputs[1] == 8);
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REQUIRE(inputs[2] == 100);
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REQUIRE(inputs[3] == 300);
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}
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}
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}
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}
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TEST_CASE("Parse arguments of different types", "[optional_arguments]") {
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using namespace std::literals;
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argparse::ArgumentParser program("test");
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program.add_argument("--this-argument-is-longer-than-any-sso-buffer-that-"
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"makes-sense-unless-your-cache-line-is-this-long"s);
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REQUIRE_NOTHROW(program.parse_args({"test"}));
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program.add_argument("-string"s, "-string-view"sv, "-builtin")
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.default_value(false)
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.implicit_value(true);
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program.parse_args({"test", "-string-view"});
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REQUIRE(program["-string"sv] == true);
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REQUIRE(program["-string-view"] == true);
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REQUIRE(program["-builtin"s] == true);
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}
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