Question

这是我的Spring Controller测试用例

@RunWith(SpringRunner.class)
@WebMvcTest(value = MyController.class)
public class MyControllerTest {

    @MockBean
    private MyService myService;
}

所以这是一个专门针对MyController中方法的单元测试。但是当我运行测试时，Spring似乎开始实例化OtherController及其所有依赖项。

我已尝试将上述内容更新为

@RunWith(SpringRunner.class)
@WebMvcTest(value = MyController.class, excludeFilters = @ComponentScan.Filter(value= OtherController.class, type = FilterType.ANNOTATION))


   public class MyControllerTest {

...
}

但是春天似乎仍在接线。这是Spring抛出的错误，因为它在我专门运行上面的测试时试图实例化OtherController。

2017-01-06 12:09:46.207  WARN 18092 --- [           main] o.s.w.c.s.GenericWebApplicationContext   : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'otherController' defined in file [C:\..OtherController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'getOtherService' defined in com.my.myApplication: Unsatisfied dependency expressed through method 'getOtherService' parameter 0org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'getOtherService' defined in com.myOrg.MyServiceApplication: Unsatisfied dependency expressed through method 'getPositionService' parameter 0

导致这种情况的原因是什么？

Answer 1

您有可能通过@Componentscan或类似的方式意外触发bean扫描。

例如，正如this answer中所解释的那样，Spring可能正在检测您的生产＆＃34; @SpringBootApplication Application类，包含所带来的所有组件扫描。如果是这样，请确保＆＃34;覆盖＆＃34;你的生产＆＃34;使用＆＃34; test＆＃34;的应用程序类一个推杆......

@SpringBootApplication
public class Application {
    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }
}

...在一个覆盖＆＃34;生产＆＃34;的位置。应用

例如，如果您的IDE没有被类名冲突搞砸：

"production" -> src/main/java/com/mycompany/Application.java
             -> src/main/java/com/mycompany/controllers/MyController.java
"test"       -> src/test/java/com/mycompany/Application.java
             -> src/test/java/com/mycompany/controllers/MyControllerTest.java

作为替代方案，我也发现在我的情况下这也可以（即将应用程序放在测试控制器文件夹中）

"production" -> src/main/java/com/mycompany/Application.java
             -> src/main/java/com/mycompany/controllers/MyController.java
"test"       -> src/test/java/com/mycompany/controllers/Application.java
             -> src/test/java/com/mycompany/controllers/MyControllerTest.java

用于Controller的Spring Boot Testing @WebMvcTest似乎在上下文中加载其他控制器

1 个答案: