Confetti Mobile

java.lang.NullPointerException: null cannot be cast to non-null type dev.johnoreilly.confetti.car.signin.SignInWithGoogleActivity.OnSignInComplete
	at dev.johnoreilly.confetti.car.signin.SignInWithGoogleActivity.onCreate(SignInWithGoogleActivity.kt:27)
	at android.app.Activity.performCreate(Activity.java:9155)
	at android.app.Activity.performCreate(Activity.java:9133)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1521)
	at org.robolectric.android.internal.RoboMonitoringInstrumentation.callActivityOnCreate(RoboMonitoringInstrumentation.java:382)
	at org.robolectric.android.controller.ActivityController.lambda$create$0(ActivityController.java:136)
	at org.robolectric.shadows.ShadowPausedLooper.runPaused(ShadowPausedLooper.java:257)
	at org.robolectric.android.controller.ActivityController.create(ActivityController.java:134)
	at org.robolectric.android.controller.ActivityController.create(ActivityController.java:144)
	at org.robolectric.android.controller.ActivityController.setup(ActivityController.java:340)
	at ee.schimke.composeai.renderer.AppTourRenderer$TourSession.launchIntent(AppTourRenderer.kt:194)
	at ee.schimke.composeai.renderer.AppTourRenderer$TourSession.launch(AppTourRenderer.kt:122)
	at ee.schimke.composeai.renderer.AppTourRenderer$render$statement$1.evaluate(AppTourRenderer.kt:75)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$testWithDisposal$1.evaluate(AndroidComposeTestRule.android.kt:426)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1$evaluate$1.invokeSuspend(AndroidComposeTestRule.android.kt:448)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1$evaluate$1.invoke(AndroidComposeTestRule.android.kt)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1$1$1.invokeSuspend(ComposeUiTest.android.kt:689)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1$1$1$1.invoke(ComposeUiTest.android.kt)
	at androidx.compose.ui.test.IdlingStrategy.withStrategy$suspendImpl(IdlingStrategy.android.kt:55)
	at androidx.compose.ui.test.IdlingStrategy.withStrategy(IdlingStrategy.android.kt)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1.invokeSuspend(ComposeUiTest.android.kt:686)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment$runTest$1$1.invoke(ComposeUiTest.android.kt)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$2$1$1.invokeSuspend(TestBuilders.kt:317)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at kotlinx.coroutines.test.TestDispatcher.processEvent$kotlinx_coroutines_test(TestDispatcher.kt:24)
	at kotlinx.coroutines.test.TestCoroutineScheduler.tryRunNextTaskUnless$kotlinx_coroutines_test(TestCoroutineScheduler.kt:98)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$2$1$workRunner$1.invokeSuspend(TestBuilders.kt:326)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:256)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:54)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlockingImpl(Builders.kt:30)
	at kotlinx.coroutines.BuildersKt.runBlockingImpl(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_concurrentKt.runBlockingK(Builders.concurrent.kt:172)
	at kotlinx.coroutines.BuildersKt.runBlockingK(Unknown Source)
	at kotlinx.coroutines.BuildersKt__Builders_concurrentKt.runBlockingK$default(Builders.concurrent.kt:157)
	at kotlinx.coroutines.BuildersKt.runBlockingK$default(Unknown Source)
	at kotlinx.coroutines.test.TestBuildersJvmKt.createTestResult(TestBuildersJvm.kt:10)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:309)
	at kotlinx.coroutines.test.TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:1)
	at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:167)
	at kotlinx.coroutines.test.TestBuildersKt.runTest-8Mi8wO0(TestBuilders.kt:1)
	at androidx.compose.ui.test.AndroidComposeUiTestEnvironment.runTest(ComposeUiTest.android.kt:665)
	at androidx.compose.ui.test.junit4.AndroidComposeTestRule$apply$1.evaluate(AndroidComposeTestRule.android.kt:447)
	at ee.schimke.composeai.renderer.AppTourRenderer.render(AppTourRenderer.kt:99)
	at ee.schimke.composeai.renderer.RobolectricRenderTestBase.renderPreview(RobolectricRenderTest.kt:1073)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
	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.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.robolectric.RobolectricTestRunner$HelperTestRunner$1.evaluate(RobolectricTestRunner.java:542)
	at org.robolectric.internal.SandboxTestRunner.lambda$executeInSandbox$4(SandboxTestRunner.java:429)
	at org.robolectric.internal.SandboxTestRunner.runInSandbox(SandboxTestRunner.java:455)
	at org.robolectric.internal.SandboxTestRunner.executeInSandbox(SandboxTestRunner.java:420)
	at org.robolectric.internal.SandboxTestRunner$5.evaluate(SandboxTestRunner.java:405)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.robolectric.internal.SandboxTestRunner.access$000(SandboxTestRunner.java:64)
	at org.robolectric.internal.SandboxTestRunner$4.evaluate(SandboxTestRunner.java:294)
	at org.robolectric.internal.SandboxTestRunner$2.evaluate(SandboxTestRunner.java:260)
	at org.robolectric.internal.SandboxTestRunner$3.lambda$evaluate$0(SandboxTestRunner.java:280)
	at org.robolectric.internal.bytecode.Sandbox.lambda$runOnMainThreadWithClassLoader$1(Sandbox.java:112)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1583)