MockMvc를 활용하는 테스트에서 403 에러가 발생하는 문제

안녕하세요 기선님,

강의를 따라하다가 잘 되지 않는 부분이 있어서 질문 남깁니다.

강의 내용과 정말 똑같이 따라치고 있는데--github의 코드와도 대조해보았습니다--이상하게 mockMvc를 통해 테스트를 하는 부분 전체에서 결과값이 403으로 떨어지네요.

구글링 해보니 @WebMvcTest를 사용하는 경우 webapplicationcontext를 가져오도록 하라는 가이드만 나오고, @AutoConfigureMockMvc를 사용하는 경우는 사례를 찾기가 좀 어렵습니다.

제가 어떤 부분을 좀 살펴보아야 할 지 도움을 주실 수 있을까요?

에러 메시지는 다음과 같습니다.

MockHttpServletRequest:
      HTTP Method = POST
      Request URI = /api/events/
       Parameters = {}
          Headers = [Content-Type:"application/json;charset=UTF-8", Accept:"application/hal+json"]
             Body = {"id":100,"name":"Spring","description":"REST API Development with Spring","beginEnrollmentDateTime":"2018-11-23T14:21:00","closeEnrollmentDateTime":"2018-11-24T14:21:00","beginEventDateTime":"2018-11-25T14:21:00","endEventDateTime":"2018-11-26T14:21:00","location":"강남역 D2 스타텁 팩토리","basePrice":100,"maxPrice":200,"limitOfEnrollment":100,"offline":false,"free":true,"eventStatus":"PUBLISHED"}
    Session Attrs = {org.springframework.security.web.csrf.HttpSessionCsrfTokenRepository.CSRF_TOKEN=org.springframework.security.web.csrf.DefaultCsrfToken@553d828a}
Handler:
             Type = null
Async:
    Async started = false
     Async result = null
Resolved Exception:
             Type = null
ModelAndView:
        View name = null
             View = null
            Model = null
FlashMap:
       Attributes = null
MockHttpServletResponse:
           Status = 403
    Error message = Forbidden
          Headers = [X-Content-Type-Options:"nosniff", X-XSS-Protection:"1; mode=block", Cache-Control:"no-cache, no-store, max-age=0, must-revalidate", Pragma:"no-cache", Expires:"0", X-Frame-Options:"DENY"]
     Content type = null
             Body = 
    Forwarded URL = null
   Redirected URL = null
          Cookies = []
MockHttpServletRequest:
      HTTP Method = POST
      Request URI = /api/events/
       Parameters = {}
          Headers = [Content-Type:"application/json;charset=UTF-8", Accept:"application/hal+json"]
             Body = {"id":100,"name":"Spring","description":"REST API Development with Spring","beginEnrollmentDateTime":"2018-11-23T14:21:00","closeEnrollmentDateTime":"2018-11-24T14:21:00","beginEventDateTime":"2018-11-25T14:21:00","endEventDateTime":"2018-11-26T14:21:00","location":"강남역 D2 스타텁 팩토리","basePrice":100,"maxPrice":200,"limitOfEnrollment":100,"offline":false,"free":true,"eventStatus":"PUBLISHED"}
    Session Attrs = {org.springframework.security.web.csrf.HttpSessionCsrfTokenRepository.CSRF_TOKEN=org.springframework.security.web.csrf.DefaultCsrfToken@553d828a}
Handler:
             Type = null
Async:
    Async started = false
     Async result = null
Resolved Exception:
             Type = null
ModelAndView:
        View name = null
             View = null
            Model = null
FlashMap:
       Attributes = null
MockHttpServletResponse:
           Status = 403
    Error message = Forbidden
          Headers = [X-Content-Type-Options:"nosniff", X-XSS-Protection:"1; mode=block", Cache-Control:"no-cache, no-store, max-age=0, must-revalidate", Pragma:"no-cache", Expires:"0", X-Frame-Options:"DENY"]
     Content type = null
             Body = 
    Forwarded URL = null
   Redirected URL = null
          Cookies = []
java.lang.AssertionError: Status 
Expected :400
Actual   :403
 <Click to see difference>
    at org.springframework.test.util.AssertionErrors.fail(AssertionErrors.java:55)
    at org.springframework.test.util.AssertionErrors.assertEquals(AssertionErrors.java:82)
    at org.springframework.test.web.servlet.result.StatusResultMatchers.lambda$matcher$9(StatusResultMatchers.java:619)
    at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:195)
    at com.rest.api.events.EventControllerTests.createEvent_Bad_Request(EventControllerTests.java:151)
    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:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    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.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:325)
    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$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)