我有一个简单的场景,想要验证某个方法被调用时的行为(即在这种情况下使用给定参数、函数指针调用了特定的方法)。以下是我的类:
@SpringBootApplication
public class Application {
public static void main(String[] args) {
ConfigurableApplicationContext context = SpringApplication.run(Application.class, args);
AppBootStrapper bootStrapper = context.getBean(AppBootStrapper.class);
bootStrapper.start();
}
}
@Component
public class AppBootStrapper {
private NetworkScanner networkScanner;
private PacketConsumer packetConsumer;
public AppBootStrapper(NetworkScanner networkScanner, PacketConsumer packetConsumer) {
this.networkScanner = networkScanner;
this.packetConsumer = packetConsumer;
}
public void start() {
networkScanner.addConsumer(packetConsumer::consumePacket);
networkScanner.startScan();
}
}
@Component
public class NetworkScanner {
private List<Consumer<String>> consumers = new ArrayList<>();
public void startScan(){
Executors.newSingleThreadExecutor().submit(() -> {
while(true) {
// do some scanning and get/parse packets
consumers.forEach(consumer -> consumer.accept("Package Data"));
}
});
}
public void addConsumer(Consumer<String> consumer) {
this.consumers.add(consumer);
}
}
@Component
public class PacketConsumer {
public void consumePacket(String packet) {
System.out.println("Packet received: " + packet);
}
}
@RunWith(JUnit4.class)
public class AppBootStrapperTest {
@Test
public void start() throws Exception {
NetworkScanner networkScanner = mock(NetworkScanner.class);
PacketConsumer packetConsumer = mock(PacketConsumer.class);
AppBootStrapper appBootStrapper = new AppBootStrapper(networkScanner, packetConsumer);
appBootStrapper.start();
verify(networkScanner).addConsumer(packetConsumer::consumePacket);
verify(networkScanner, times(1)).startScan();
}
}
我希望验证bootStrapper是否已经通过注册数据包消费者(后面可能会有其他消费者注册,但此项是必需的)并调用startScan来进行正确设置。当我执行测试案例时,我收到以下错误信息:
Argument(s) are different! Wanted:
networkScanner bean.addConsumer(
com.spring.starter.AppBootStrapperTest$$Lambda$8/438123546@282308c3
);
-> at com.spring.starter.AppBootStrapperTest.start(AppBootStrapperTest.java:24)
Actual invocation has different arguments:
networkScanner bean.addConsumer(
com.spring.starter.AppBootStrapper$$Lambda$7/920446957@5dda14d0
);
-> at com.spring.starter.AppBootStrapper.start(AppBootStrapper.java:12)
从异常情况来看,函数指针并不相同。
我这样做是否正确?我是否忽略了一些基本的内容?我尝试了将一个消费者注入到PacketConsumer中,以查看是否有所改变,但是我知道那肯定不是正确的方法。
如果您能提供任何帮助或观点,将不胜感激。