ferPrieto

internal fun launchesScreenRobot(
    composeTestRule: AndroidComposeTestRule<ActivityScenarioRule<EntryPointActivity>, EntryPointActivity>,
    func: LaunchesScreenRobot.() -> Unit
) = LaunchesScreenRobot(composeTestRule).also { func }

internal open class LaunchesScreenRobot constructor(
    private val composeTestRule: AndroidComposeTestRule<ActivityScenarioRule<EntryPointActivity>, EntryPointActivity>
) {
    // Robot definitions and functions    
}

ferPrieto

@Test
fun elementsVisibilityAfterOpeningTheScreen() {
   launchesScreenRobot(composeTestRule) {
        clickOnLaunchesTab()
        initialElementsShowed()
    }
}

@Test
fun elementsVisibilityAfterOpeningTheScreen() {

ferPrieto

@ExperimentalMaterialApi
@RunWith(AndroidJUnit4::class)
@HiltAndroidTest
class LaunchesScreenKtTest : BaseScreenTest() {

    @Test
    @InternalCoroutinesApi
    fun visibleItemsCountAfterOpeningTheScreen() {
        mockWebServer.dispatcher = SuccessDispatcher()
        setMainContent()

ferPrieto

    val mockWebServer by lazy { MockWebServer() }
    
    @Before
    fun setUp() {
        mockWebServer.start(BuildConfig.PORT)
    }

    @After
    fun teardown() {
        mockWebServer.shutdown()

ferPrieto

@InstallIn(SingletonComponent::class)
@Module
open class NetworkModule {

    open fun getBaseUrl () ="https://api.spacexdata.com/v3/"

    @Provides
    @BaseUrl
    fun provideBaseUrl() = getBaseUrl ()

ferPrieto

@Module
@TestInstallIn(
    components = [SingletonComponent::class],
    replaces = [NetworkModule::class]
)
class FakeNetworkModule : NetworkModule() {
    override fun getBaseUrl() = "http://127.0.0.1:${BuildConfig.PORT}"
}

ferPrieto

 @Test
    @InternalCoroutinesApi
    fun elementsVisibilityAfterTwoItemsRetrieved() {
        composeTestRule.apply {
            setContent {
                SpaceXTheme {
                    LaunchesScreen(
                        state = LaunchesContract.State(
                            listOf(
                                LaunchUiModel(

ferPrieto

class MockTestRunner : AndroidJUnitRunner() {
    override fun onCreate(arguments: Bundle?) {
        StrictMode.setThreadPolicy(StrictMode.ThreadPolicy.Builder().permitAll().build())
        super.onCreate(arguments)
    }

    override fun newApplication(
        cl: ClassLoader?,
        className: String?,
        context: Context?

ferPrieto

android {
    defaultConfig {
        applicationId = "prieto.fernando.sample"
        testInstrumentationRunner = "prieto.fernando.sample.webmock.MockTestRunner"
    }
    buildFeatures {
        compose = true
        viewBinding = true
    }
    // rest of configuration

ferPrieto

    private val dialogFilterButton by lazy {
        composeTestRule.onNodeWithContentDescription("Filter Button")
    }
    
    @Test
    fun elementsVisibilityAfterOpeningTheMainScreen() {
        setMainContent()
        dialogFilterButton.assertIsDisplayed()
    }