自定义布局上的java Robolectric单元测试ClassCastException

1 周，3 日 Questions & Answers 705

当我在安卓应用程序上使用自定义布局或自定义组件测试活动或片段时，我在机器人分子单元测试上有“ClassCastException”。例子： CrumbView扩展线性布局。当我开始一个片段时，我得到了一个错误： java。lang.ClassCastException:com。应用程序。测验用户界面。看法CrumbView无法转换为com。应用程序。测验用户界面。看法CrumbView 有人知道怎么修吗？或者它还没有得到机器人分子的支持

java.lang.ClassCastException: com.app.test.ui.view.DrawerView cannot be cast to com.app.test.ui.view.DrawerView

at com.app.test.ui.activity.equipements.EquipementsActivity.onCreate(EquipementsActivity.java:61)
at 安卓.app.Activity.performCreate(Activity.java:6975)
at org.robolectric.util.ReflectionHelpers.callInstanceMethod(ReflectionHelpers.java:232)
at org.robolectric.安卓.controller.ActivityController$1.run(ActivityController.java:58)
at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:364)
at org.robolectric.shadows.CoreShadowsAdapter$1.runPaused(CoreShadowsAdapter.java:26)
at org.robolectric.安卓.controller.ActivityController.create(ActivityController.java:55)
at org.robolectric.安卓.controller.ActivityController.create(ActivityController.java:65)
at com.app.test.ui.activity.equipements.EquipementsActivityTest.setUp(EquipementsActivityTest.java:24)
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.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.powermock.modules.junit4.rule.PowerMockStatement$1.run(PowerMockRule.java:83)
at org.powermock.reflect.internal.WhiteboxImpl.performMethodInvocation(WhiteboxImpl.java:1846)
at org.powermock.reflect.internal.WhiteboxImpl.doInvokeMethod(WhiteboxImpl.java:810)
at org.powermock.reflect.internal.WhiteboxImpl.invokeMethod(WhiteboxImpl.java:675)
at org.powermock.reflect.Whitebox.invokeMethod(Whitebox.java:401)
at org.powermock.classloading.AbstractClassloaderExecutor.getResult(AbstractClassloaderExecutor.java:76)
at org.powermock.classloading.AbstractClassloaderExecutor.invokeWithClassLoader(AbstractClassloaderExecutor.java:64)
at org.powermock.classloading.AbstractClassloaderExecutor.executeWithClassLoader(AbstractClassloaderExecutor.java:56)
at org.powermock.classloading.SingleClassloaderExecutor.execute(SingleClassloaderExecutor.java:33)
at org.powermock.classloading.AbstractClassloaderExecutor.execute(AbstractClassloaderExecutor.java:40)
at org.powermock.modules.junit4.rule.PowerMockStatement.evaluate(PowerMockRule.java:75)
at org.robolectric.internal.SandboxTestRunner$2.evaluate(SandboxTestRunner.java:226)
at org.robolectric.internal.SandboxTestRunner.runChild(SandboxTestRunner.java:108)
at org.robolectric.internal.SandboxTestRunner.runChild(SandboxTestRunner.java:35)
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.internal.SandboxTestRunner$1.evaluate(SandboxTestRunner.java:62)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.powermock.modules.junit4.internal.impl.DelegatingPowerMockRunner$2.call(DelegatingPowerMockRunner.java:149)
at org.powermock.modules.junit4.internal.impl.DelegatingPowerMockRunner$2.call(DelegatingPowerMockRunner.java:141)
at org.powermock.modules.junit4.internal.impl.DelegatingPowerMockRunner.withContextClassLoader(DelegatingPowerMockRunner.java:132)
at org.powermock.modules.junit4.internal.impl.DelegatingPowerMockRunner.run(DelegatingPowerMockRunner.java:141)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:57)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
at com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)

onCreate（equipmentsActivity.java:61）的行指向： DrawerView-DrawerView=findviewbyd（R.id.drawer）

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_equipements);
    Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    DrawerLayout drawer = findViewById(R.id.drawer_layout);
    DrawerView drawerView = findViewById(R.id.drawer);
    ActionBarDrawerToggle toggle .......

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自定义布局上的java Robolectric单元测试ClassCastException

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