Java Spring モデルのテストが通らず困っています・・・

前提・実現したいこと

作成しているWebアプリのモデル箇所でテストを通しいのですが、JUnityテストが通らず、投稿しました。

実現したいこと

発生している問題・エラーメッセージ

該当のソースコード

package jp.spring.jobboard.model;

import static org.assertj.core.api.Assertions.*;

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;

import org.aspectj.lang.annotation.Before;
import org.junit.jupiter.api.Test;

public class AccountFormTest {
	   private Validator validator;
	    
	    @Before(value = "")
	    public void setUp() {
	        ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
	        validator = factory.getValidator();
	    }
	    
	    @Test
	    public void testValidationSuccess() {
	        AccountForm form = new AccountForm();
	        form.setUsername("user");
	        form.setPassword("12345678");
	        
	        Set<ConstraintViolation<AccountForm>> violations = validator.validate(form);
	        assertThat(violations.size()).isEqualTo(0);
	    }
	    
	    @Test
	    public void testValidationFailUsername() {
	        AccountForm form = new AccountForm();
	        form.setPassword("12345678");
	        
	        Set<ConstraintViolation<AccountForm>> violations = validator.validate(form);
	        assertThat(violations.size()).isEqualTo(1);
	        for (ConstraintViolation<AccountForm> violation : violations) {
	            Object annotation = violation.getConstraintDescriptor().getAnnotation();
	            assertThat(annotation).isInstanceOf(NotBlank.class);
	        }
	    }
	    
	    @Test
	    public void testValidationFailPasswordBlank() {
	        AccountForm form = new AccountForm();
	        form.setUsername("user");
	        
	        Set<ConstraintViolation<AccountForm>> violations = validator.validate(form);
	        assertThat(violations.size()).isEqualTo(1);
	        for (ConstraintViolation<AccountForm> violation : violations) {
	            Object annotation = violation.getConstraintDescriptor().getAnnotation();
	            assertThat(annotation).isInstanceOf(NotBlank.class);
	        }
	    }
	    
	    @Test
	    public void testValidationFailPasswordSize() {
	        AccountForm form = new AccountForm();
	        form.setUsername("user");
	        form.setPassword("1234");
	        
	        Set<ConstraintViolation<AccountForm>> violations = validator.validate(form);
	        assertThat(violations.size()).isEqualTo(1);
	        for (ConstraintViolation<AccountForm> violation : violations) {
	            Object annotation = violation.getConstraintDescriptor().getAnnotation();
	            assertThat(annotation).isInstanceOf(Size.class);
	        }
	    }
	}

package jp.spring.jobboard.model;



import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;

import lombok.Data;

@Data
public class AccountForm {
	private String type;
	
	@NotBlank(message = "ユーザIDを入力してください")
	private String username;
	
	@NotBlank(message = "パスワードを入力してください")
	@Size(min = 8, message = "パスワードは8文字以上で入力してください")
	private String password;
	
	private Boolean active;

}

分かる方いましたら、アドバイスお願いします！