pub fn output_format() -> &'static str {
    "text"
}

#[cfg(feature = "json")]
pub fn json_output_format() -> &'static str {
    "json"
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn default_format_is_text() {
        assert_eq!(output_format(), "text");
    }

    #[cfg(feature = "json")]
    #[test]
    fn json_format_is_available() {
        assert_eq!(json_output_format(), "json");
    }
}