PowerMock + Robolectric +匕首2

本文介绍了PowerMock + Robolectric +匕首2的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我测试包含以下内容的自定义视图类：

I test custom view class which contain:

android ui元素

一些逻辑

静态方法调用

dagger2依赖项

android ui elements

some logic

static methods callings

dagger2 dependencies

所以我使用下一个工具进行测试

So i use next tools for testing

Robolectric用于模拟UI元素

用于逻辑测试的单元测试

用于静态方法模拟的PowerMock

Robolectric + PowerMock集成问题已知，解决方案已知- github/robolectric/robolectric/ wiki / Using-PowerMock 但是使用此解决方案，dagger2依赖项失败。 注意编码。 我的自定义视图：

Robolectric + PowerMock integration problem is known and solution is known - github/robolectric/robolectric/wiki/Using-PowerMock But with this solution dagger2 dependencies fail. Attention to code. My custom view:

public class ProgressTextView extends TextView { private String defaultText; private int fileSize; private String fileSizeString; private FileDownloaderI fileDownloader; @Inject FileDownloaderManager fileDownloaderManager; Subscription downloadProgressChannelSubscription; Subscription downloadCancelChannelSubscription; public ProgressTextView(Context context) { super(context); provideDependency(); } public ProgressTextView(Context context, AttributeSet attrs) { super(context, attrs); provideDependency(); } public ProgressTextView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); provideDependency(); } private void provideDependency() { ApplicationSIP.get().applicationComponent().inject(this); } }

ProgressTextViewTest：

ProgressTextViewTest:

@RunWith(RobolectricUnitTestRunner.class) @PowerMockIgnore({ "org.mockito.*", "org.robolectric.*", "android.*" }) @PrepareForTest(Formatter.class) public class ProgressTextViewTest { Activity activity; @Mock FileDownloaderManager fileDownloaderManager; @Rule public PowerMockRule rule = new PowerMockRule(); @Before public void beforeTest() { // PowerMockito PowerMockito.mockStatic(Formatter.class); when(Formatter.formatFileSize(anyObject(), anyInt())).thenReturn(""); // Mockito MockitoAnnotations.initMocks(this); // Robolectic activity = Robolectric.setupActivity(Activity.class); } @Test public void init_FileDownloaded() { ProgressTextView progressTextView = new ProgressTextView(activity); } }

In ProgressTextViewTest错误：

In ProgressTextViewTest error:

java.lang.NullPointerException at com.tg.osip.ApplicationSIP.get(ApplicationSIP.java:64) at com.tg.osip.ui.general.views.ProgressTextView.provideDependency(ProgressTextView.java:56) at com.tg.osip.ui.general.views.ProgressTextView.<init>(ProgressTextView.java:42) at com.tg.osip.ui.general.views.ProgressTextViewTest.init_FileDownloaded(ProgressTextViewTest.java:72) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) at org.powermock.modules.junit4.rule.PowerMockStatement$1.run(PowerMockRule.java:52) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.powermock.reflect.internal.WhiteboxImpl.performMethodInvocation(WhiteboxImpl.java:1873) at org.powermock.reflect.internal.WhiteboxImpl.doInvokeMethod(WhiteboxImpl.java:773) at org.powermock.reflect.internal.WhiteboxImpl.invokeMethod(WhiteboxImpl.java:638) at org.powermock.reflect.Whitebox.invokeMethod(Whitebox.java:401) at org.powermock.classloading.ClassloaderExecutor.execute(ClassloaderExecutor.java:98) at org.powermock.classloading.ClassloaderExecutor.execute(ClassloaderExecutor.java:78) at org.powermock.modules.junit4.rule.PowerMockStatement.evaluate(PowerMockRule.java:49) at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:251) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runners.Suite.runChild(Suite.java:128) at org.junit.runners.Suite.runChild(Suite.java:27) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

有一个麻烦了。其他具有Robolectric和dagger2依赖项的测试无法正常工作。 ProgressDownloadViewTest_AudioType：

And there is one trouble yet. Other tests with Robolectric and dagger2 dependencies are not working. ProgressDownloadViewTest_AudioType:

@RunWith(RobolectricUnitTestRunner.class) public class ProgressDownloadViewTest_AudioType { Activity activity; @Mock FileDownloaderManager fileDownloaderManager; @Mock MediaManager mediaManager; @Before public void setup() { // Mockito MockitoAnnotations.initMocks(this); // Robolectic activity = Robolectric.setupActivity(Activity.class); } @Test public void setDownloadingState_emptyFileDownloaderI() { ProgressDownloadView progressDownloadView = new ProgressDownloadView(activity, ProgressDownloadView.Type.AUDIO); ... } }

例外：

ClassCastException occurred while creating the mockito proxy : class to mock : 'com.tg.osip.tdclient.update_managers.FileDownloaderManager', loaded by classloader : 'org.robolectric.internal.bytecode.InstrumentingClassLoader@403f0a22' created class : 'com.tg.osip.tdclient.update_managers.FileDownloaderManager$$EnhancerByMockitoWithCGLIB$$a751cd05', loaded by classloader : 'org.robolectric.internal.bytecode.InstrumentingClassLoader@403f0a22' proxy instance class : 'com.tg.osip.tdclient.update_managers.FileDownloaderManager$$EnhancerByMockitoWithCGLIB$$a751cd05', loaded by classloader : 'org.mockito.internal.creation.util.SearchingClassLoader@10bd9df0' instance creation by : ObjenesisInstantiator You might experience classloading issues, disabling the Objenesis cache *might* help (see MockitoConfiguration) at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:61) at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:49) at org.powermock.api.mockito.repackaged.CglibMockMaker.createMock(CglibMockMaker.java:24) at org.powermock.api.mockito.internal.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:45) at com.tg.osip.ui.general.views.progress_download.ProgressDownloadViewTest_AudioType.setup(ProgressDownloadViewTest_AudioType.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24) at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:251) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runners.Suite.runChild(Suite.java:128) at org.junit.runners.Suite.runChild(Suite.java:27) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) Caused by: java.lang.ClassCastException: Cannot cast com.tg.osip.tdclient.update_managers.FileDownloaderManager$$EnhancerByMockitoWithCGLIB$$a751cd05 to com.tg.osip.tdclient.update_managers.FileDownloaderManager at java.lang.Class.cast(Class.java:3369) at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:59) at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:49) at org.powermock.api.mockito.repackaged.CglibMockMaker.createMock(CglibMockMaker.java:24) at org.powermock.api.mockito.internal.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:45) at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:33) at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59) at org.mockito.Mockito.mock(Mockito.java:1284) at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:33) at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16) at org.mockito.internal.configuration.DefaultAnnotationEngine.createMockFor(DefaultAnnotationEngine.java:43) at org.mockito.internal.configuration.DefaultAnnotationEngine.process(DefaultAnnotationEngine.java:66) at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:71) at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:55) at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:108) ... 36 more

更新 解决 PowerMock + Robolectric + Dagger2。第一部分

推荐答案

Activity activity; @Mock FileDownloaderManager fileDownloaderManager; @Rule public PowerMockRule rule = new PowerMockRule(); @Before public void beforeTest() { // You intialise activity here activity = Robolectric.setupActivity(Activity.class); } @Test public void init_FileDownloaded() { // and use it here, the initialisation is out of scope for this ProgressTextView progressTextView = new ProgressTextView(activity); }

您需要更改程序逻辑以允许如下所示：

You need to change your program logic to allow for something like this:

Activity activity; @Mock FileDownloaderManager fileDownloaderManager; activity = Robolectric.setupActivity(Activity.class); @Rule public PowerMockRule rule = new PowerMockRule(); @Before public void beforeTest() { } @Test public void init_FileDownloaded() { ProgressTextView progressTextView = new ProgressTextView(activity); }

也

ApplicationSIP.get().applicationComponent().inject(this);

我不确定您指的是 this

我看不到您在类中初始化 FileDownloaderManager 的位置，但看来您正在尝试将自定义管理器用作内置的android管理器。

I cannot see where you are initialsing FileDownloaderManager in you classes, but it seems you are attempting to use the custom manager as the inbuilt android manager.

Caused by: java.lang.ClassCastException: Cannot cast com.tg.osip.tdclient.update_managers.FileDownloaderManager$$EnhancerByMockitoWithCGLIB$$a751cd05 to com.tg.osip.tdclient.update_managers.FileDownloaderManager at java.lang.Class.cast(Class.java:3369)

我希望这有助于使您更加清晰。

I hope this helps to get you a little clearer.