Robolectric测试-并发线程问题

如何解决Robolectric测试-并发线程问题

我想用Espresso打开抽屉布局并测试它是否打开。但简单的代码如下：

@RunWith(AndroidJUnit4::class)
@LooperMode(LooperMode.Mode.PAUSED)
class MainActivityTest {

    @Rule
    @JvmField
    val rule = InstantTaskExecutorRule()

    @Rule
    @JvmField
    val activity = ActivityScenarioRule(MainActivity::class.java)

    @Test
    fun isDrawerOpening(){
        onView(withId(R.id.drawerLayoutMain))
            .check(matches(isDisplayed()))
            .check(matches(isClosed()))
            .perform(open())

        Shadows.shadowOf(Looper.getMainLooper()).idle()

        onView(withId(R.id.drawerLayoutMain)).check(matches(isOpen()))
    }

}

不想工作。它在check(matches(isOpen()))上失败。这是一条日志：

"D:\Android Studio\jre\bin\java.exe" -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:\Android Studio\lib\idea_rt.jar=63291:D:\Android Studio\bin" -Dfile.encoding=UTF-8 -classpath "D:\Android Studio\lib\idea_rt.jar" com.intellij.rt.execution.CommandLineWrapper C:\Users\Zywczas\AppData\Local\Temp\idea_classpath1427816816 com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit4 com.zywczas.bestonscreen.views.MainActivityTest,isDrawerOpening
[Robolectric] WARN: Android SDK 10000 requires Java 9 (have Java 8). Tests won't be run on SDK 10000 unless explicitly requested.
[Robolectric] com.zywczas.bestonscreen.views.MainActivityTest.isDrawerOpening: sdk=28; resources=BINARY
Called loadFromPath(/system/framework/framework-res.apk,true); mode=binary sdk=28

androidx.test.espresso.base.DefaultFailureHandler$AssertionFailedWithCauseError: 'is drawer open' doesn't match the selected view.
Expected: is drawer open
     Got: "DrawerLayout{id=2131230868,res-name=drawerLayoutMain,visibility=VISIBLE,width=320,height=470,has-focus=false,has-focusable=true,has-window-focus=true,is-clickable=false,is-enabled=true,is-focused=false,is-focusable=true,is-layout-requested=false,is-selected=false,layout-params=androidx.coordinatorlayout.widget.CoordinatorLayout$LayoutParams@7c51f29f,tag=null,root-is-layout-requested=false,has-input-connection=false,x=0.0,y=56.0,child-count=2}"

<Click to see difference>


    at java.lang.Thread.getStackTrace(Thread.java:1559)
    at androidx.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:16)
    at androidx.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:36)
    at androidx.test.espresso.ViewInteraction.waitForAndHandleInteractionResults(ViewInteraction.java:103)
    at androidx.test.espresso.ViewInteraction.check(ViewInteraction.java:31)
    at com.zywczas.bestonscreen.views.MainActivityTest.isDrawerOpening(MainActivityTest.kt:47)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54)
    at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:546)
    at org.robolectric.internal.SandboxTestRunner$2.lambda$evaluate$0(SandboxTestRunner.java:252)
    at org.robolectric.internal.bytecode.Sandbox.lambda$runOnMainThread$0(Sandbox.java:89)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: junit.framework.AssertionFailedError: 'is drawer open' doesn't match the selected view.
Expected: is drawer open
     Got: "DrawerLayout{id=2131230868,child-count=2}"

    at androidx.test.espresso.matcher.ViewMatchers.assertThat(ViewMatchers.java:17)
    at androidx.test.espresso.assertion.ViewAssertions$MatchesViewAssertion.check(ViewAssertions.java:15)
    at androidx.test.espresso.ViewInteraction$SingleExecutionViewAssertion.check(ViewInteraction.java:10)
    at androidx.test.espresso.ViewInteraction$2.call(ViewInteraction.java:11)
    at androidx.test.espresso.ViewInteraction$2.call(ViewInteraction.java:2)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at android.os.Handler.$$robo$$android_os_Handler$handleCallback(Handler.java:873)
    at android.os.Handler.handleCallback(Handler.java)
    at android.os.Handler.$$robo$$android_os_Handler$dispatchMessage(Handler.java:99)
    at android.os.Handler.dispatchMessage(Handler.java)
    at org.robolectric.shadows.ShadowPausedLooper$IdlingRunnable.run(ShadowPausedLooper.java:308)
    at org.robolectric.shadows.ShadowPausedLooper.executeOnLooper(ShadowPausedLooper.java:273)
    at org.robolectric.shadows.ShadowPausedLooper.idle(ShadowPausedLooper.java:85)
    at org.robolectric.android.internal.LocalControlledLooper.drainMainThreadUntilIdle(LocalControlledLooper.java:15)
    at androidx.test.espresso.ViewInteraction.waitForAndHandleInteractionResults(ViewInteraction.java:99)
    ... 20 more


Process finished with exit code -1

如何用Espresso打开它？我使用Robolectric和Navigation。我想测试我的主要活动并单击抽屉中的导航按钮。当我使用该应用程序时，它可以工作。但是使用Espresso无法达到相同的效果。

我的依赖项：

testImplementation 'androidx.test.espresso:espresso-core:3.3.0'
testImplementation 'androidx.test.espresso:espresso-contrib:3.3.0'
testImplementation 'androidx.test.espresso:espresso-intents:3.3.0'
testImplementation 'org.robolectric:robolectric:4.3'

我的布局：

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:scrollbarSize="20dp">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appbarMovies"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="false">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbarMovies"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:minHeight="?attr/actionBarSize"
            android:theme="@style/ToolbarTheme"
            app:buttonGravity="center_vertical"
            app:layout_scrollFlags="scroll|enterAlways" />

    </com.google.android.material.appbar.AppBarLayout>

    <androidx.drawerlayout.widget.DrawerLayout
        android:id="@+id/drawerLayoutMain"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="false"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        tools:context=".views.MainActivity"
        tools:openDrawer="start">

        <androidx.fragment.app.FragmentContainerView
            android:id="@+id/navHostFragmentView"
            android:name="androidx.navigation.fragment.NavHostFragment"
            android:layout_width="0dp"
            android:layout_height="0dp"
            app:defaultNavHost="true"
            app:navGraph="@navigation/main_nav_graph" />

        <com.google.android.material.navigation.NavigationView
            android:id="@+id/navDrawer"
            android:layout_width="200dp"
            android:layout_height="wrap_content"
            android:layout_gravity="start"
            android:fitsSystemWindows="true"
            app:itemIconPadding="20dp"
            app:itemIconTint="@android:color/holo_red_dark"
            app:itemTextAppearance="@style/TextAppearance.AppCompat.Body1"
            app:itemTextColor="@android:color/black"
            app:menu="@menu/menu_navigation">

        </com.google.android.material.navigation.NavigationView>

    </androidx.drawerlayout.widget.DrawerLayout>


</androidx.coordinatorlayout.widget.CoordinatorLayout>

活动：

class MainActivity : AppCompatActivity() {

    @Inject
    lateinit var moviesFragmentsFactory: MoviesFragmentsFactory
    private val navHostFragment by lazy {
        supportFragmentManager.findFragmentById(R.id.navHostFragmentView) as NavHostFragment }
    private val navController by lazy { navHostFragment.navController }
    private val appBarConfiguration by lazy {
        AppBarConfiguration(setOf(R.id.destinationDb,R.id.destinationApi),drawerLayoutMain) }

    override fun onCreate(savedInstanceState: Bundle?) {
        AndroidInjection.inject(this)
        supportFragmentManager.fragmentFactory = moviesFragmentsFactory
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        navDrawer.setupWithNavController(navController)
        toolbarMovies.setupWithNavController(navController,appBarConfiguration)
        toolbarMovies.setNavigationOnClickListener(openCloseDrawerNavClick)
    }

    private val openCloseDrawerNavClick = View.OnClickListener {
        if (drawerLayoutMain.isDrawerOpen(GravityCompat.START)){
            drawerLayoutMain.closeDrawer(GravityCompat.START)
        } else {
            navController.navigateUp(appBarConfiguration)
        }
    }

}