我试图验证我的代码是否在错误情况下记录了正确的消息,因此我嘲笑了org.apache.commons.logging.Log
并且我试图验证它是否被调用正确。
我想要验证的方法的签名是:error(Object, Throwable)
我希望传入的字符串包含其他各种内容,但包含文字&#34 ;消息对于队列而言太大了#34;。在这种情况下,throwable将为null。
以下是我的验证码的代码:
Mockito.verify(errorLog, Mockito.atLeastOnce()).error(
Mockito.matches("*Message is too big for queue*"),
Mockito.isNull(Throwable.class));
当它运行时,我收到一个错误:
Argument(s) are different! Wanted:
log.error(
matches("*Message is too big for queue*"),
isNull()
);
-> at com.company.TestClass.testMessageTooBig(TestClass.java:178)
Actual invocation has different arguments:
log.error(
|ClassUnderTest|Message is too big for queue (size=41). It will never fit, so discarding.,
null
);
这里的问题似乎是Mockito.matches()
使得它在实际签名为(Object,Throwable)时会查找带签名(String,Throwable)的方法。
我怎样才能匹配这些?我知道字符串是问题所在,因为如果我将Mockito.matches()
替换为Mockito.any()
则会传递。
答案 0 :(得分:1)
也许一个例子会有所帮助。看看你是否能理解这一点。它可能有点做作,但无论如何它应该让你更近一点..
Main.java
package com.company;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class Main {
private static Log log = LogFactory.getLog(Main.class);
public Main(Log l) {
this.log = l;
}
public static void main(String[] args) {
Main m = new Main(log);
m.go();
}
public void go() {
log.info("this is a test of the emergency broadcasting system.", null);
}
}
MainTest.java
package com.company;
import org.apache.commons.logging.Log;
import org.junit.Test;
import org.mockito.Mockito;
import static org.mockito.Matchers.*;
public class MainTest {
Log mockLogger = (Log) Mockito.mock(Log.class);
private Main testSubject = new Main(mockLogger);
@Test
public void should_use_logger() {
//Mockito.doNothing().when(mockLogger).info(anyString(), any());
testSubject.go();
Mockito.verify(mockLogger, Mockito.times(1)).info(contains("emergency broadcasting"), isNull(Throwable.class));
}
}