// filename: tests/integration.rs

mod integration {
    use regex::Regex;
    use std::process::Command;
    use std::process::Output;

    static WITHOUT_ARGS_OUTPUT: &'static str = " USAGE:
        carman [FLAGS] [OPTIONS] <URL>
    For more information try --help
    ";

    #[test]
    fn calling_carman_without_args_returns_result() {
        let  output = Command::new("./target/debug/carman")
            .output()
            .expect("failed to execute process");
        let re = Regex::new(r"^Hello").unwrap();
        assert!(re.is_match(&String::from_utf8_lossy(&output.stdout)));
    }

    #[test]
    fn calling_carman_with_help_returns_usage() {
        let  output = Command::new("./target/debug/carman")
            .arg("--help")
            .output()
            .expect("failed to execute process");
        let re = Regex::new(r"^carman").unwrap();
        assert!(re.is_match(&String::from_utf8_lossy(&output.stdout)));
        let re = Regex::new(r"--help").unwrap();
        assert!(re.is_match(&String::from_utf8_lossy(&output.stdout)));
    }
    
}