我几乎绝望地让Mockito与RoboGuice和Robolectric合作。
我有一个gradle多项目，其中包含一个使用RoboGuice设计的Android应用程序。现在我有一个测试用例，我想覆盖默认的Robuguice模块以注入一些模拟。但遗憾的是我无法让它发挥作用。
到目前为止，这是我的方法：
@RunWith(RobolectricTestRunner.class)
public class NetworkUtilTest {
@Inject
private NetworkUtil networkUtil;
private ErrorDialog errorDialog = mock(ErrorDialog.class, Mockito.RETURNS_DEEP_STUBS);
private FragmentActivity activity;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
activity = Robolectric.buildActivity(MainActivity.class).create().get();
RoboGuice.setBaseApplicationInjector(Robolectric.application, RoboGuice.DEFAULT_STAGE, Modules.override(RoboGuice.newDefaultRoboModule(Robolectric.application)).with(new MyTestModule()));
RoboInjector injector = RoboGuice.getInjector(activity);
injector.injectMembersWithoutViews(this);
}
@Test
public void testNetworkInfoNull() {
ConnectivityManager manager = (ConnectivityManager) Robolectric.application.getSystemService(Context.CONNECTIVITY_SERVICE);
ShadowConnectivityManager shadowConnectivityManager = shadowOf(manager);
shadowConnectivityManager.setActiveNetworkInfo(null);
networkUtil.isNetworkAvailable();
verify(errorDialog).show(R.string.network_error);
}
private class MyTestModule extends AbstractModule {
@Override
protected void configure() {
bind(ErrorDialog.class).toInstance(errorDialog);
}
}
}
许多说明正在使用 RoboGuice.getInjector（Robolectric.application） 但是我没有使用模拟器的绑定进行测试就可以使用上面的方法。所以它似乎是正确的方式？
如果我运行测试，我收到以下错误：
1) null returned by binding at roboguice.config.DefaultRoboModule.configure(DefaultRoboModule.java:131)
but roboguice.inject.FragmentManagerProvider.activity is not @Nullable
while locating roboguice.inject.NullProvider<android.app.Activity>
at roboguice.config.DefaultRoboModule.configure(DefaultRoboModule.java:131)
while locating android.app.Activity
for field at roboguice.inject.FragmentManagerProvider.activity(Unknown Source)
at roboguice.inject.FragmentManagerProvider.class(Unknown Source)
while locating roboguice.inject.FragmentManagerProvider
while locating android.support.v4.app.FragmentManager
for field at com.example.test.dialog.ErrorDialog.fragmentManager(Unknown Source)
at com.example.test.util.NetworkUtilTest$MyTestModule.configure(NetworkUtilTest.java:80)
1 error
com.google.inject.CreationException: Guice creation errors:
1) null returned by binding at roboguice.config.DefaultRoboModule.configure(DefaultRoboModule.java:131)
but roboguice.inject.FragmentManagerProvider.activity is not @Nullable
while locating roboguice.inject.NullProvider<android.app.Activity>
at roboguice.config.DefaultRoboModule.configure(DefaultRoboModule.java:131)
while locating android.app.Activity
for field at roboguice.inject.FragmentManagerProvider.activity(Unknown Source)
at roboguice.inject.FragmentManagerProvider.class(Unknown Source)
while locating roboguice.inject.FragmentManagerProvider
while locating android.support.v4.app.FragmentManager
for field at com.example.test.dialog.ErrorDialog.fragmentManager(Unknown Source)
at com.example.test.util.NetworkUtilTest$MyTestModule.configure(NetworkUtilTest.java:80)
1 error
at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:435)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:175)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:109)
at com.google.inject.Guice.createInjector(Guice.java:95)
at com.google.inject.Guice.createInjector(Guice.java:83)
at roboguice.RoboGuice.setBaseApplicationInjector(RoboGuice.java:94)
at com.example.test.util.NetworkUtilTest.setUp(NetworkUtilTest.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:250)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:177)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at $Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)
at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
有人知道这个问题的解决方案吗？ Mockito，RoboGuice和Robolectric有很多高级Android测试指南，所以我认为这有用吗？
我已经看了一下astroboy的例子，但它没有让我更进一步。
此致 托拜厄斯
答案 0 :(得分：0)
感谢您的回答！ 我最后通过在我的测试模块中添加以下行来修复它：
bind(FragmentManager.class).toInstance(activity.getSupportFragmentManager());
然后测试成功运行。我希望没有其他问题。我浪费了足够的时间： - ）