在Mockito中存根默认值

import org.mockito.Mockito;
import org.mockito.stubbing.Answer;

public class MockitoExample {
    public interface MyService {
        String getName();
        int getAge();
    }

    public static void main(String[] args) {
        MyService myService = Mockito.mock(MyService.class, Mockito.withSettings()
                .defaultAnswer(Mockito.CALLS_REAL_METHODS)
                .defaultAnswer(new Answer<Object>() {
                    @Override
                    public Object answer(InvocationOnMock invocation) throws Throwable {
                        if (invocation.getMethod().getName().equals("getName")) {
                            return "defaultName";
                        } else if (invocation.getMethod().getName().equals("getAge")) {
                            return 0;
                        } else {
                            return null;
                        }
                    }
                }));

        System.out.println(myService.getName()); // 输出 "defaultName"
        System.out.println(myService.getAge()); // 输出 0
    }
}

import org.mockito.Mockito;

public class MockitoExample {
    public interface MyService {
        String getName();
        int getAge();
    }

    public static void main(String[] args) {
        MyService myService = Mockito.mock(MyService.class);

        Mockito.when(myService.getName()).thenReturn("defaultName");
        Mockito.when(myService.getAge()).thenReturn(0);

        System.out.println(myService.getName()); // 输出 "defaultName"
        System.out.println(myService.getAge()); // 输出 0
    }
}