@Test(expected = IllegalStateException.class)가 제대로 동작하지 않는 경우에 대한 질문입니다

@Test(expected = IllegalStateException.class)
public void 중복_회원_예외() throws Exception {

    Member member1 = new Member();
    member1.setName("kim");

    Member member2 = new Member();
    member2.setName("kim");


    memberService.join(member1);
    memberService.join(member2);

    fail("예외가 발생해야 한다.");
}

위와 같이 작성하고 테스트 케이스를 실행시킨 경우에,

pass 표시가 떠야하지만 

java.lang.Exception: Unexpected exception, expected<java.lang.IllegalStateException> but was<org.springframework.dao.InvalidDataAccessApiUsageException>

at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:30)

at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)

at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)

at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)

at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)

at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)

at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)

at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)

at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)

at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)

at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)

at org.junit.runners.ParentRunner.run(ParentRunner.java:413)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)

at org.junit.runner.JUnitCore.run(JUnitCore.java:137)

at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)

at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)

at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)

at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)

Caused by: org.springframework.dao.InvalidDataAccessApiUsageException: 이미 존재하는 ID입니다.; nested exception is java.lang.IllegalStateException: 이미 존재하는 ID입니다.

at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:371)

at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:235)

at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)

at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)

at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)

at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)

at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)

at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)

at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698)

at icpbl2.module2.service.CustomerService$$EnhancerBySpringCGLIB$$582d39c5.join(<generated>)

at icpbl2.module2.service.CustomerServiceTest.중복_회원_예외(CustomerServiceTest.java:44)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)

at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)

at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)

at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)

at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:19)

... 21 more

Caused by: java.lang.IllegalStateException: 이미 존재하는 ID입니다.

at icpbl2.module2.service.CustomerService.validateDuplicateCustomer(CustomerService.java:38)

at icpbl2.module2.service.CustomerService.join(CustomerService.java:25)

at icpbl2.module2.service.CustomerService$$FastClassBySpringCGLIB$$c9e25da.invoke(<generated>)

at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)

at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)

... 42 more

와 같은 오류메세지가 나오며 fail처리가 됩니다. 예외는 정상적으로 작동하는 것 같은데, (expected = IllegalStateException.class) 문구 및 직접 try catch 문구를 작성해도 저렇게 예외가 터집니다. 뭐가 문제일까요?

private void validateDuplicateMember(Member member) {
    List<Member> findMembers =
            memberRepository.findByName(member.getName());
    if (!findMembers.isEmpty()) {
        throw new IllegalStateException("이미 존재하는 회원입니다.");
    }
}

private void validateDuplicateCustomer(Customer customer) {
    List<Customer> findCustomers =
            customerRepository.findByUserId(customer.getUser_id());
    if (!findCustomers.isEmpty()) {
        throw new IllegalStateException("이미 존재하는 ID입니다.");
    }
}

@Test(expected = IllegalStateException.class)
public void 중복_회원_예외() throws Exception {

    Member member1 = new Member();
    member1.setName("kim");

    Member member2 = new Member();
    member2.setName("kim");


    memberService.join(member1);
    memberService.join(member2);

    fail("예외가 발생해야 한다.");
}

@Test(expected = IllegalStateException.class)
    public void 중복_회원_예외() throws Exception {

//        Customer customer1 = new Customer("test", "testName1", LocalDate.of(1923, 02, 11), MemberStatus.CUSTOMER);
//        Customer customer2 = new Customer("test", "testName2", LocalDate.of(1983, 02, 16), MemberStatus.CUSTOMER);

        Customer customer1 = new Customer();
        customer1.setUser_id("test");
        Customer customer2 = new Customer();
        customer2.setUser_id("test");

        customerService.join(customer1);
        customerService.join(customer2);

        fail("예외가 발생해야 한다");
    }