我在使用Junit5和Mockito 3.8模拟Java接口中的一个方法时遇到了问题。测试失败,原因是:
Wanted but not invoked:
remoteCommands.getServiceStatus("ABC");
-> at com.acme.CommandHandlerTest.testServiceName(CommandHandlerTest.java:40)
Actually, there were zero interactions with this mock.
它在www.example.com的第40行失败CommandHandlerTest.java,这是
verify(remoteCommands).getServiceStatus(serviceName);
然而,当我调试代码时,我可以看到正在执行的方法,所以我知道有一个与此方法的交互,但Mockito无法识别它。
如果我遗漏了什么,请告诉我。我的代码文件如下,
命令处理程序测试.java
package com.acme;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.rmi.RemoteException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.mockito.junit.jupiter.MockitoExtension;
@ExtendWith(MockitoExtension.class)
public class CommandHandlerTest {
private CommandHandler commandHandler;
@Mock
IRemoteCommandsImpl remoteCommands;
@BeforeEach
void setup() {
MockitoAnnotations.openMocks(this);
}
@Test
void testDoCommand_serviceName() throws RemoteException {
commandHandler = new CommandHandler();
String serviceName = "ABC";
int mockValue = 4000;
when(remoteCommands.getServiceStatus(eq(serviceName))).thenReturn(mockValue);
commandHandler.printServiceStatus(serviceName);
verify(remoteCommands).getServiceStatus(serviceName);
}
}
命令处理程序.java
package com.acme;
public class CommandHandler {
private IRemoteCommands remoteCommands;
public CommandHandler(){
}
public void printServiceStatus(String service) {
remoteCommands = new IRemoteCommandsImpl();
int serviceStatus = 0;
try {
serviceStatus = remoteCommands.getServiceStatus(service);
System.out.println("CommandHandler->serviceStatus: "+serviceStatus);
} catch (Exception e) {
e.getMessage();
}
}
}
I远程命令.java
package com.acme;
import java.rmi.Remote;
import java.rmi.RemoteException;
public interface IRemoteCommands extends Remote
{
public int getServiceStatus(String serviceName) throws RemoteException;
}
I远程命令实现java
package com.acme;
import java.rmi.RemoteException;
public class IRemoteCommandsImpl implements IRemoteCommands{
@Override
public int getServiceStatus(String serviceName) throws RemoteException {
return 1000;
}
}
1条答案
按热度按时间bihw5rsg1#
在
CommandHandler
中,创建一个新的IRemoteCommandsImpl
示例,并将其分配给私有remoteCommands
字段。这意味着被模拟的
remoteCommands
没有被测试对象使用。您需要重新构造代码并将
remoteCommands
提供给CommandHandler
,最好通过构造函数:最重要的是:
MockitoExtension
,则不需要MockitoAnnotations.openMocks(this);