1

我将 JUNIT 与 Powermockito 和 EclEmma 一起使用来测试我的代码。现在有一个问题。我必须测试这个类：

public class Main
{
    private static final Logger slf4jLogger = LoggerFactory.getLogger(Main.class);
    private static final Marker marker      = MarkerFactory.getMarker("Test");

    /**
     * @param args
     */
    public static void main(String[] args)
    {
        System.out.println(slf4jLogger);
        slf4jLogger.debug(marker, "Hallo");
        slf4jLogger.trace(marker, "Hallo");
        slf4jLogger.info(marker, "Hallo");
        slf4jLogger.warn(marker, "Hallo");
        slf4jLogger.error(marker, "Hallo");
    }

}

这是我的测试：

@PrepareForTest({ LoggerFactory.class, Main.class })
public class MainTest
{
    @Rule
    public PowerMockRule            rule        = new PowerMockRule();

    @Rule
    public ExpectedException    thrown  = ExpectedException.none();

    /**
     * Test static Fields
     * 
     * @throws Exception
     */
    @Test
    public void testMain() throws Exception
    {
        Logger logger = PowerMockito.mock(Logger.class);

        PowerMockito.mockStatic(LoggerFactory.class);
        PowerMockito.when(LoggerFactory.getLogger(Mockito.any(Class.class))).thenReturn(logger);

        Main.main(null);

        Mockito.verify(logger).debug(Mockito.any(Marker.class), Mockito.eq("Hallo"));
        Mockito.verify(logger).trace(Mockito.any(Marker.class), Mockito.eq("Hallo"));
        Mockito.verify(logger).info(Mockito.any(Marker.class), Mockito.eq("Hallo"));
        Mockito.verify(logger).warn(Mockito.any(Marker.class), Mockito.eq("Hallo"));
        Mockito.verify(logger).error(Mockito.any(Marker.class), Mockito.eq("Hallo"));
    }

}

但是有以下错误：

java.lang.IllegalArgumentException：无法在 org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy. java:25) at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217) at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378) at org.mockito.cglib.proxy .Enhancer.createClass(Enhancer.java:318) at org.powermock.api.mockito.repackaged.ClassImposterizer.createProxyClass(ClassImposterizer.java:123) at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java :57) 在 org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:111) 在 org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:59) at org.powermock.api.mockito.PowerMockito.mockStatic(PowerMockito.java:70) ...

我不想使用 powermock-module-javaagent。有没有办法做到这一点？

4

1 回答 1

0

一种选择是创建一个静态 getter 方法slf4jLogger，然后重构你的main方法来调用这个新方法。然后你可以在你的测试中存根这个方法：

PowerMockito.spy(Main.class);
PowerMockito.when(Main.getSlf4jlogger()).thenReturn(logger);

（代替

PowerMockito.mockStatic(LoggerFactory.class);
PowerMockito.when(LoggerFactory.getLogger(Mockito.any(Class.class))).thenReturn(logger);

)

于 2016-03-28T19:25:51.490 回答