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Added an example that uses a reference catching in action lambda

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This commit is contained in:
Pranav Srinivas Kumar 2019-03-31 15:15:56 -04:00
parent 953f7d9462
commit 28e084dfd8
1 changed files with 28 additions and 0 deletions
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28
tests/test_container_arguments.hpp
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@ -50,4 +50,32 @@ TEST_CASE("Parse list of arguments with default values", "[vector]") {
REQUIRE(argparse::get_from_list(inputs, 2) == 3); REQUIRE(argparse::get_from_list(inputs, 2) == 3);
REQUIRE(argparse::get_from_list(inputs, 3) == 4); REQUIRE(argparse::get_from_list(inputs, 3) == 4);
REQUIRE(argparse::get_from_list(inputs, 4) == 5); REQUIRE(argparse::get_from_list(inputs, 4) == 5);
}
TEST_CASE("Parse list of arguments and save in an object", "[vector]") {
struct ConfigManager {
std::vector<std::string> files;
void add_file(const std::string& file) {
files.push_back(file);
}
};
ConfigManager config_manager;
argparse::ArgumentParser program("test");
program.add_argument("--input_files")
.nargs(2)
.action([&](const std::string& value) { config_manager.add_file(value); return value; });
program.parse_args({ "test", "--input_files", "config.xml", "system.json" });
auto file_args = program.get<std::vector<std::string>>("--input_files");
REQUIRE(file_args.size() == 2);
REQUIRE(file_args[0] == "config.xml");
REQUIRE(file_args[1] == "system.json");
REQUIRE(config_manager.files.size() == 2);
REQUIRE(config_manager.files[0] == "config.xml");
REQUIRE(config_manager.files[1] == "system.json");
} }