我正在测试一些旧代码,并想模拟对静态记录器方法的任何调用:LoggerFact.getLogger(Class class, String MethodName)
,这是我尝试的方法:
@RunWith(PowerMockRunner.class)
@PrepareForTest({LoggerFact.class, MyClass.class, Logger.class})
public class MyClassTest
{
@Before
public void prepare() throws Exception
{
Logger mockedLogger = Mockito.mock(Logger.class);
PowerMockito.mockStatic(LoggerFact.class);
PowerMockito.when(LoggerFact.getLogger(MyClass.class, "test"))
.thenReturn(mockedLogger);
}
//My tests
}
我正在测试的课程:
public class MyClass
{
public String methodToBeTested()
{
Logger logger = LoggerFact.getLogger(this.getClass(), "test");
logger.info("This is a test");
//some logic
return "SUCCESS";
}
}
但是当我从prepare when()执行此操作时,我收到此错误:
org.mockito.exceptions.misusing.MissingMethodInvocationException:
when() requires an argument which has to be 'a method call on a mock'.
我错过了什么吗?我检查了很多有关此问题的较早的帖子,但没有任何帮助。
答案 0 :(得分:0)
工作示例here。经过JDK 8和JDK 11的测试。
以下对我有用。 (我发现初始化的顺序很关键):
@RunWith(PowerMockRunner.class)
@PrepareForTest(LoggerFact.class)
public class MyClassTestCase {
private MyClass myClass = null;
@Before
public void setUp() {
PowerMockito.mockStatic(LoggerFact.class);
}
@Test
public void testMethodToBeTested() {
Logger mockLogger = Mockito.mock(Logger.class);
PowerMockito.when(LoggerFact.getLogger(eq(MyClass.class),eq("test"))).thenReturn(mockLogger);
myClass = new MyClass();
// test
myClass.methodToBeTested();
verify(mockLogger, times(1)).info(eq("This is a test"));
}
}
根据要求,从以上示例链接中的build.gradle
,以下是库的版本:
dependencies {
testImplementation 'junit:junit:4.13.1'
testImplementation 'org.mockito:mockito-core:3.6.0'
testImplementation 'org.powermock:powermock-api-mockito2:2.0.7'
testImplementation 'org.powermock:powermock-module-junit4:2.0.7'
}