file-encrypt 0.2.1

CLI tool for encrypting local files
Documentation 
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#[cfg(test)]
mod encryption_tests {
    use file_encrypt::encryption_algos;
    use std::ffi::OsString;
    use std::fs;

    fn create_test_file() {
        let _ = fs::write("plain_text", b"Hello World 123456789:$");
    }

    fn cleanup_files_aes() {
        let _ = fs::remove_file("plain_text");
        let _ = fs::remove_file("new_plain_text");
        let _ = fs::remove_file("aes_cipher_text");
    }

    fn cleanup_files_chacha() {
        let _ = fs::remove_file("plain_text");
        let _ = fs::remove_file("new_plain_text");
        let _ = fs::remove_file("chacha_cipher_text");
    }

    #[test]
    fn test_aes256_gcm() {
        create_test_file();
        let file = String::from("plain_text");
        let passphrase = String::from("secret_key");
        let out_file = String::from("aes_cipher_text");
        let out_file_os_string = OsString::from(out_file.clone());
        let argon_pch: String;

        match encryption_algos::aes256_gcm::encrypt_file(file, passphrase.clone(), out_file.clone())
        {
            Ok((new_file, hash)) => {
                argon_pch = hash;
                assert_eq!(out_file_os_string, new_file);
            }
            Err(e) => {
                panic!("{}", e.to_string());
            }
        }

        let file = out_file;
        let out_file = String::from("new_plain_text");
        match encryption_algos::aes256_gcm::decrypt_file(
            file,
            passphrase,
            argon_pch,
            out_file.clone(),
        ) {
            Ok(()) => {
                let content: Vec<u8> = fs::read(out_file).unwrap();
                assert_eq!(content, b"Hello World 123456789:$");
            }
            Err(e) => {
                panic!("{}", e.to_string());
            }
        }

        cleanup_files_aes();
    }

    #[test]
    fn test_chacha20() {
        create_test_file();
        let file = String::from("plain_text");
        let passphrase = String::from("secret_key");
        let out_file = String::from("chacha_cipher_text");
        let out_file_os_string = OsString::from(out_file.clone());
        let argon_pch: String;

        match encryption_algos::chacha20_poly::encrypt_file(
            file,
            passphrase.clone(),
            out_file.clone(),
        ) {
            Ok((new_file, hash)) => {
                argon_pch = hash;
                assert_eq!(out_file_os_string, new_file);
            }
            Err(e) => {
                panic!("{}", e.to_string());
            }
        }

        let file = out_file;
        let out_file = String::from("new_plain_text");
        match encryption_algos::chacha20_poly::decrypt_file(
            file,
            passphrase,
            argon_pch,
            out_file.clone(),
        ) {
            Ok(()) => {
                let content: Vec<u8> = fs::read(out_file).unwrap();
                assert_eq!(content, b"Hello World 123456789:$");
            }
            Err(e) => {
                panic!("{}", e.to_string());
            }
        }

        cleanup_files_chacha();
    }
}