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#[cfg(test)]
pub mod test {
    use std::io::{Stdout, Write};

    use ratatui::backend::CrosstermBackend;

    use crate::app::App;

    impl App {
        pub fn mockup(data: Vec<u8>) -> Self {
            let mut app = App::default();
            let mut input_file =
                tempfile::NamedTempFile::new().expect("Failed to create tempfile for mockup.");
            input_file
                .write_all(&data)
                .expect("Failed to write data to tempfile for mockup.");
            app.open_file::<CrosstermBackend<Stdout>>(&input_file.path().to_string_lossy(), None)
                .expect("Failed to open file for mockup.");
            app
        }
    }

    #[test]
    fn test_mockup() {
        let data = b"Hello, World!";
        let app = App::mockup(data.to_vec());
        assert_eq!(app.data.bytes, data);
    }
}