测试:@SpringBootTest、切片测试与上下文缓存

  Plain(不启动 Spring):整条命令(含 JVM 启动)3 次中位 373 ms(范围 373~396);结果 tests successful 1, tests failed 0, containers failed 0
    [Plain] 不启动 Spring:user-1
  C6_Slice1(@WebMvcTest):整条命令(含 JVM 启动)3 次中位 1585 ms(范围 1541~1734);结果 tests successful 1, tests failed 0, containers failed 0
    [C6_Slice1] Bean 定义 107 个,GET /users/1 → mocked
  C1_Full1(@SpringBootTest + @AutoConfigureMockMvc):整条命令(含 JVM 启动)3 次中位 1647 ms(范围 1460~2015);结果 tests successful 1, tests failed 0, containers failed 0
    [C1_Full1] Bean 定义 154 个,GET /users/1 → user-1

  >> C1_Full1
      (新建上下文 #1)
     [C1_Full1] Bean 定义 154 个,GET /users/1 → user-1
  >> C2_Full2
     [C2_Full2] Bean 定义 154 个,GET /users/1 → user-1
  >> C3_FullMock
      (新建上下文 #2)
     [C3_FullMock] Bean 定义 154 个,GET /users/1 → mocked
  >> C4_FullProp
      (新建上下文 #3)
     [C4_FullProp] Bean 定义 154 个,GET /users/1 → user-1
  >> C5_FullProfile
      (新建上下文 #4)
     [C5_FullProfile] Bean 定义 154 个,GET /users/1 → user-1
  >> C6_Slice1
      (新建上下文 #5)
     [C6_Slice1] Bean 定义 107 个,GET /users/1 → mocked
  >> C7_Slice2
     [C7_Slice2] Bean 定义 107 个
  >> C9_Dirties(2 个测试方法)
      (新建上下文 #6)
     [C9_Dirties.a] Bean 定义 146 个
      (新建上下文 #7)
     [C9_Dirties.b] Bean 定义 146 个
  整个 JVM 里 UserController 一共被创建了 7 次(= 创建的 Spring 上下文个数)
  结果 tests successful 9, tests failed 0, containers failed 0,整条命令 2309 ms

  退出码 1;tests successful 0, tests failed 1, containers failed 0
    => java.lang.IllegalStateException: Failed to load ApplicationContext for [WebMergedContextConfiguration@388623ad testClass = demo.C8_SliceNoMock, locations = [], classes = [demo.App], contextInitializerClasses = [], activeProfiles = [], propertySourceDescriptors = [], propertySourceProperties = ["org.springframework.boot.webmvc
    Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController' defined in file [<jtmp>/x82/out/demo/UserController.class]: Unsatisfied dependency expressed through constructor parameter 0: No qualifying bean of type 'demo.UserService' available: expected at least 1 bea
    Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'demo.UserService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}