extern crate dono;
extern crate rustc_serialize;

use self::rustc_serialize::json;
use dono::*;

#[test]
fn dono_error_can_be_json_encoded_and_decoded() {
    let error = DonoError {
        code: "TS000".to_string(),
        field: "test".to_string(),
        message: "Test".to_string(),
        description: "Extended test".to_string()
    };

    let encoded = json::encode(&error).unwrap();
    let expected =
        "{\"field\":\"test\",\"code\":\"TS000\",\
        \"description\":\"Extended test\",\"message\":\"Test\"}";

    assert_eq!(expected, encoded);

    let decoded: DonoError = json::decode(&encoded).unwrap();

    assert_eq!(error, decoded);
}

#[test]
fn it_computes_a_password() {
    let dono = Dono::new();

    let key = "helloworldofpasswo".to_string();
    let label = "rds".to_string();

    let password = dono.compute_password(&key, &label);

    let password = password.unwrap();
    let expected = "xU+T8Pk5OjxrWquYTzNjJkqzPqR/NQ+xuJrOelQZ8yE=";

    assert_eq!(expected, password);
}

#[test]
fn it_returns_an_error_if_the_key_is_too_short() {
    let dono = Dono::new();

    let key = "helloworl".to_string();
    let label = "rds".to_string();

    let password = dono.compute_password(&key, &label);
    let password = password;

    assert!(password.is_err());

    let error = password.unwrap_err();

    assert_eq!("CP001", error.code);
}