更新时间:2023-10-21 21:51:04
我建议查看文档,但这里有两个完整的示例测试:
I would suggest having a look at the documentation, but here are two complete example tests:
public final class ExampleTest {
public static final class SessionDataManager {
private static final SessionDataManager instance = new SessionDataManager();
public static SessionDataManager getInstance() { return instance; }
public void doSomething() { throw new UnsupportedOperationException("to do"); }
}
@Test
public void mockingASingleton(@Mocked SessionDataManager mockInstance) {
SessionDataManager singletonInstance = SessionDataManager.getInstance();
assertSame(mockInstance, singletonInstance);
singletonInstance.doSomething(); // mocked, won't throw
}
@Test
public void mockingASingletonWithAMockUp() {
new MockUp<SessionDataManager>() {
// no point in having a @Mock getInstance() here
@Mock void doSomething() { /* whatever */ }
};
SessionDataManager singletonInstance = SessionDataManager.getInstance();
singletonInstance.doSomething(); // redirects to the @Mock method, won't throw
}
}