class AuthenticationMocked: AuthenticationProtocol {

    func authenticateUser(with username: String, password: String, completion: @escaping (_ user: UserModel?, _ error: Error?) -> Void) -> Cancellable {

        return APIClientMocked.performRequest {

            let validCredentials = (username == MockedDatabase.user.username) && (password == MockedDatabase.user.password)

            if validCredentials {
                completion(MockedDataFactory.createUserModel(), nil)
            } else {
                completion(nil, APIError.invalidCredentials)
            }
        }
    }
}