Question

我有一些使用Java EE ManagedExecutorService的服务（在Wildfly 9中）

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对于Mockito的测试，我想使用“普通”ExecutorService

public class FooService{
    @Resource
    ManagedExecutorService executorService;
}

此代码显然无法编译，因为@RunWith(MockitoJUnitRunner.class) public class FooServiceTest{ @Spy ManagedExecutorService executorService = Executors.newFixedThreadPool(5); }不是ExecutorService。

在服务中使用ManagedExecutorService时，测试运行没有错误，但Wildfly无法注入服务。

ExecutorService

可以通过委派给public class FooService{ @Resource ExecutorService executorService; } @RunWith(MockitoJUnitRunner.class) public class FooServiceTest { @Spy ExecutorService executorService = Executors.newFixedThreadPool(5); }来创建ManagedExecutorService：

ExecutorService

是否有更简单的方法在测试中使用@Spy ManagedExecutorService executorService = new ManagedExecutorService() { ExecutorService executorService = Executors.newFixedThreadPool(5); @Override public void shutdown() { executorService.shutdown(); } // delegate for all (12) methods }而不更改在Wildfly中运行的服务？

Answer 1

我使用注射模式：

class DefaultImpl {
 static DefaultFactory me;
 static DefaultFactory getCurrentInstance()
  { if (me == null) {
     me = new DefaultFactory();
    }
    return me;
  }
void setCurrentInstance(DefaultFactory df){
  me = df;
}
 ExecutorService getExecutorService(){
   // lookup and return ManagedExecutorService
 }
}
class TestImpl extends DefaultImpl{
  TestImpl(){
    DefaultFactory.setCurrentInstance(this); <-- this now sets your TestImpl for any call
  }
  ExecutorService getExecutorService(){
    ExecutorService executorService = Executors.newFixedThreadPool(5);
    return executorService;
  }
}

//junit
@Test
void someTest(){
 new TestImpl();
 // do something all your calls will use non managed executor service
}

您也可以从junit setup（）调用新的TestImpl（）。此外，如果您想使其更灵活，那么您可以使用BaseImpl并同时使用DefaultImpl和TestImpl扩展它。

希望这有帮助！

在test中用ExecutorService替换ManagedExecutorService

1 个答案: