我想在Android Robolectric测试中使用PowerMockito来模拟一些静态方法。我正在按照指导here使用JUnit 4.8.2,Robolectric 2.2,Mockito 1.9.5和PowerMock 1.9.5。由于我必须使用RoboElectricTestRunner,因此我试图使用PowerMockRule来引导PowerMock。但是,当使用PowerMock进行测试时,我遇到了不幸java.lang.IncompatibleClassChangeError
。使用PowerMock和Robolectric - IncompatibleClassChangeError
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323) at sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(InstrumentationImpl.java:348)Caused by: java.lang.IncompatibleClassChangeError: Implementing class at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
如果我把org.ow2.asm
的org.powermock
库我拿到后:
java.lang.IncompatibleClassChangeError: class org.objectweb.asm.tree.ClassNode has interface org.objectweb.asm.ClassVisitor as super class at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method)
上每单元测试。
根据Maven的依赖:树Robolectric和PowerMock不共享任何依赖关系。 但显然org.powermock:powermock模块,javaagent包一些组织/ ObjectWeb联盟/ ASM类和Robolectric依靠org.ow2.asm:ASM:罐子:4.1导致冲突。
@RunWith(RobolectricTestRunner.class)
@PrepareForTest(Helper.class)
@PowerMockIgnore({"com.sun.jmx.*", "javax.management.*"})
public class HelpFragTest {
@Rule
public PowerMockRule rule = new PowerMockRule();
static {
PowerMockAgent.initializeIfNeeded();
}
FragmentActivity fragmentActivity;
FragmentManager fragmentManager;
ActionBarManager actionBarManager;
@Before
public void setup(){
actionBarManager = mock(ActionBarManager.class);
LowesApplication.instance().setActionBarManager(actionBarManager);
fragmentActivity = Robolectric.buildActivity(FragmentActivity.class).create().start().resume().get();
fragmentManager = fragmentActivity.getSupportFragmentManager();
}
@Test
public void testShow(){
mockStatic(Helper.class);
HelpFrag helpFrag = HelpFrag.newInstance();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(helpFrag, null);
fragmentTransaction.commit();
assertTrue(helpFrag.isVisible());
}
}
要使用电源嘲笑你必须运行与力量模拟赛跑者。所以当你试图用Robolectric测试运行器运行它时,它没有意义 –
@EugenMartynov这是javaagent和PowerMockRule应该解决的问题,请参阅[PowerMockRule](http://code.google.com/ p/powermock/wiki/PowerMockRule)和[PowerMockAgent](http://code.google.com/p/powermock/wiki/PowerMockAgent)。 –
很酷,让我知道如果你解决它,因为这也是我们的问题 –