public function testValidationRules()
{
$this->model = new RegistrationForm();
verify('username is required', $this->model->validate(['username']))->false();
$this->model->username = \Yii::$app->security->generateRandomKey();
verify('username is too long', $this->model->validate(['username']))->false();
$this->model->username = '******';
verify('username contains invalid characters', $this->model->validate(['username']))->false();
$this->model->username = '******';
verify('username is already using', $this->model->validate(['username']))->false();
$this->model->username = '******';
verify('username is ok', $this->model->validate(['username']))->true();
verify('email is required', $this->model->validate(['email']))->false();
$this->model->email = 'not valid email';
verify('email is not email', $this->model->validate(['email']))->false();
$this->model->email = '*****@*****.**';
verify('email is already using', $this->model->validate(['email']))->false();
$this->model->email = '*****@*****.**';
verify('email is ok', $this->model->validate(['email']))->true();
verify('password is required', $this->model->validate(['password']))->false();
$this->model->password = '******';
verify('password is too short', $this->model->validate(['password']))->false();
$this->model->password = '******';
verify('password is ok', $this->model->validate(['password']))->true();
}