Audhil

package solid;

public class _5DI {
    //  dependency inversion principle
    //  wrong
    private class Email {

        private void sendEmail() {

        }

Audhil

lifecycleScope.launch(Dispatchers.IO) {
            val time = measureTimeMillis {
                val res1 = async {
                    println("yup 1st launched: ${Thread.currentThread().name}")
                    getNetworkResp1()
                }.await()

                try {
                    val res2 = async {
                        println("yup 2nd launched: ${Thread.currentThread().name}")

Audhil

package com.example.croutinesdemo

import retrofit2.Call
import retrofit2.Response
import retrofit2.http.GET

//  api
interface API {
    @GET("/comments")
    fun getComments(): Call<List<Comment>>  //  apiCallWithRetrofitDemo1(), apiCallWithRetrofitDemo2()

Audhil

open class Event<out T>(private val content: T) {

    var hasBeenHandled = false
        private set // Allow external read but not write

    /**
     * Returns the content and prevents its use again.
     */
    fun getContentIfNotHandled(): T? {
        return if (hasBeenHandled) {

Audhil

 private fun writeToFile(data: String, context: Context) {
        try {
            val outputStreamWriter = OutputStreamWriter(context.openFileOutput("config.txt", Context.MODE_PRIVATE))
            outputStreamWriter.write(data)
            outputStreamWriter.close()
        } catch (e: IOException) {
            showELog("File write failed: $e")
        }
    }

Audhil

@UninstallModules(APIModule::class, OtherModule::class)
@HiltAndroidTest
class MainActivityTest {

    @get:Rule
    var hiltRule = HiltAndroidRule(this)

    @Rule
    @JvmField
    val activityRule = ActivityTestRule(MainActivity::class.java, true, false)

Audhil

@Module
@InstallIn(ActivityComponent::class)
class TestOtherModule {

    @Provides
    fun giveFeedListAdapter(): FeedListAdapter = FeedListAdapter()
}

Audhil

@Module
@InstallIn(ApplicationComponent::class)
class TestAPIModule {

    @Provides
    fun giveRetrofitAPIService(): API =
        Retrofit.Builder()
            .baseUrl("http://localhost:8080/")
//            .baseUrl("http://127.0.0.1:8080") //  this too works
            .addConverterFactory(MoshiConverterFactory.create())

Audhil

android {
    ...
    defaultConfig {
        ...
        testInstrumentationRunner "com.example.newsapp.runner.NewsRunner"
        ...
    }
}

Audhil

class NewsRunner : AndroidJUnitRunner() {

    override fun newApplication(
        cl: ClassLoader?,
        className: String?,
        context: Context?
    ): Application {
        return super.newApplication(cl, HiltTestApplication::class.java.name, context)
    }
}