cppargs/test/cppargs/misc.cpp

#include <vector>
#include <gtest/gtest.h>

#include <cppargs.h>

struct config
{
    std::string config;

    struct database
    {
        std::string host;
        uint16_t port;
        std::string password;
    }
    database;

    struct logging
    {
        std::string file;
        std::string level;
        std::string name;
    }
    logging;
};

using parser = ::cppargs::member_parser<config>;

TEST(misc, print_help)
{
    parser p(
        nullptr,

        parser::make_member_option<config>(
            ::cppargs::option_meta()
                .set_short_name ('c')
                .set_long_name  ("config")
                .set_arguments  (::cppargs::enwrap_type("filename", false))
                .set_description("Specify a configuration file to load config values from.")
                .set_mandatory  (true),
            &config::config),

        // parser::make_group<std::string>({ }),

        /* database */
        parser::make_member_group<config>(
            ::cppargs::group_meta()
                .set_name("Database")
                .set_description("The following parameters are database related."),
            &config::database,
            parser::make_member_option<struct config::database>(
                ::cppargs::option_meta()
                    .set_long_name  ("database:host")
                    .set_description("Database host to connect to."),
                &config::database::host),
            parser::make_member_option<struct config::database>(
                ::cppargs::option_meta()
                    .set_long_name  ("database:port")
                    .set_description("Database port to connect to."),
                &config::database::port),
            parser::make_member_option<struct config::database>(
                ::cppargs::option_meta()
                    .set_long_name  ("database:password")
                    .set_description("Password to use for authenticatiom"),
                &config::database::password)),

        /* logging */
        parser::make_member_group<config>(
            ::cppargs::group_meta()
                .set_name("Logging"),
            &config::logging,
            parser::make_member_option<struct config::logging>(
                ::cppargs::option_meta()
                    .set_long_name  ("logging:file")
                    .set_arguments  (::cppargs::enwrap_type("filename", false))
                    .set_description("File to write log output to."),
                &config::logging::file),
            parser::make_member_option<struct config::logging>(
                ::cppargs::option_meta()
                    .set_long_name  ("logging:level")
                    .set_description("Log Level."),
                &config::logging::level),
            parser::make_member_option<struct config::logging>(
                ::cppargs::option_meta()
                    .set_long_name  ("logging:name")
                    .set_description("Default name of the logger."),
                &config::logging::name)));

    std::ostringstream ss;
    p.print_help(ss);

    std::cout << ss.str();
}