Jetpack撰写测试在连续运行时会导致"java.lang.IllegalStateException:没有事件从破坏中上升“

Question

我使用Jetpack在应用程序上运行了测试。这些测试是独立通过的，但在连续运行时，我会收到：

java.lang.IllegalStateException:没有被摧毁的事件

还有一个调用堆栈，包括我的入口点中的一些行，它们似乎表明NavController实现是罪魁祸首。这个问题在运行在同一设备上的非仪器化的构建中是不可重复的，因此我有一种感觉，那就是我如何在@ have函数中实现AppState创建。如有任何建议，将不胜感激。

java.lang.IllegalStateException: no event up from DESTROYED
at androidx.lifecycle.LifecycleRegistry.forwardPass(LifecycleRegistry.java:263)
at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:307)
at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:148)
at androidx.lifecycle.LifecycleRegistry.setCurrentState(LifecycleRegistry.java:121)
at androidx.navigation.NavBackStackEntry.updateState(NavBackStackEntry.kt:173)
at androidx.navigation.NavBackStackEntry.handleLifecycleEvent(NavBackStackEntry.kt:157)
at androidx.navigation.NavController.lifecycleObserver$lambda-2(NavController.kt:184)
at androidx.navigation.NavController.$r8$lambda$QcvT-AhOyhL9f0B2nrlZ1aMydmQ(Unknown Source:0)
at androidx.navigation.NavController$$ExternalSyntheticLambda0.onStateChanged(Unknown Source:2)
at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:354)
at androidx.lifecycle.LifecycleRegistry.addObserver(LifecycleRegistry.java:196)
**at androidx.navigation.NavController.setLifecycleOwner(NavController.kt:2119)**
at androidx.navigation.NavHostController.setLifecycleOwner(NavHostController.kt:54)
at androidx.navigation.compose.NavHostKt.NavHost(NavHost.kt:105)
at androidx.navigation.compose.NavHostKt.NavHost(NavHost.kt:69)
**at com.roadbytes.ui.main.RoadBytesAppKt$CreateRoadBytesApp$1$2.invoke(RoadBytesApp.kt:198)
at com.roadbytes.ui.main.RoadBytesAppKt$CreateRoadBytesApp$1$2.invoke(RoadBytesApp.kt:196)**
at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:116)
at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
at androidx.compose.material.ScaffoldKt$ScaffoldLayout$1$1$1$bodyContentPlaceables$1.invoke(Scaffold.kt:316)
at androidx.compose.material.ScaffoldKt$ScaffoldLayout$1$1$1$bodyContentPlaceables$1.invoke(Scaffold.kt:314)

安装函数如下所示：

@Before
fun setupAppWithFakes() {
    composeTestRule.setContent {
        val navController = rememberNavController()
        val tripsRepo = FirebaseRepo(
            emulate = true,
            firebaseDBPath = resources.getString(R.string.db_path_trips),
            logTag = resources.getString(R.string.log_tag_trips_repo),
            entityFactory = TripFactory())
        val appState = RoadBytesAppState.getInstance(
            with(RoadBytesAppState){
                mapOf(
                    this.CONTEXT_KEY to LocalContext.current,
                    this.NAV_CONTROLLER_KEY to navController,
                    this.AUTH_HANDLER_KEY to authHandlerFake,
                    this.TRIPS_REPO_KEY to tripsRepo
                )
            }
        )
        CreateRoadBytesApp(appState)
    }
    composeTestRule.waitForIdle()
    composeTestRule.onNodeWithTag(tripsNavButtonTag).performClick()
}

我的切入点可合成如下：

@ExperimentalMaterialApi
@Composable
fun CreateRoadBytesApp(
    appState: RoadBytesAppState
) {
    RoadBytesTheme {
        Scaffold(
            bottomBar = { RoadBytesBottomNavBar(appState, Screens.navigableScreens()) }
        ) { innerPadding ->
            NavHost(
                navController = appState.navController,
                startDestination = Screens.RecordTripScreen.route,
                modifier = Modifier.padding(innerPadding)
            ){
                composable(Screens.RecordTripScreen.route) { RecordTripScreen(appState) }
                composable(Screens.SignInScreen.route) { SignInScreen(appState) }
                composable(Screens.SignUpScreen.route) { SignUpScreen(appState) }
                composable(Screens.TripsScreen.route) { TripsScreen(appState) }
                composable(Screens.VehiclesScreen.route) { VehiclesScreen(appState) }
            }
        }
    }
}

Answer 1

我假设您使用的是createComposeRule()而不是createAndroidComposeRule(MainActivity)。重复检查包含UI测试的模块的androidTestImplementation文件的依赖项:特别是debugImplementation和build.gradle

// Test rules and transitive dependencies:
androidTestImplementation("androidx.compose.ui:ui-test-junit4:$compose_version")
// Needed for createComposeRule, but not createAndroidComposeRule:
debugImplementation("androidx.compose.ui:ui-test-manifest:$compose_version")

测试您的构图布局