├── .gitignore ├── .idea ├── .name ├── codeStyles │ ├── Project.xml │ └── codeStyleConfig.xml ├── gradle.xml ├── jarRepositories.xml ├── misc.xml ├── runConfigurations.xml └── vcs.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── carlosgub │ │ │ └── coroutines │ │ │ ├── CoroutinesApplication.kt │ │ │ ├── core │ │ │ ├── interactor │ │ │ │ └── Interactor.kt │ │ │ ├── mapper │ │ │ │ └── Mapper.kt │ │ │ ├── network │ │ │ │ └── BaseApiClient.kt │ │ │ ├── platform │ │ │ │ └── BaseViewModel.kt │ │ │ └── utils │ │ │ │ └── CoroutineUtils.kt │ │ │ ├── di │ │ │ └── modules.kt │ │ │ └── features │ │ │ └── books │ │ │ ├── data │ │ │ ├── datasource │ │ │ │ └── rest │ │ │ │ │ ├── ApiClient.kt │ │ │ │ │ ├── PostRestDataStore.kt │ │ │ │ │ ├── interfaces │ │ │ │ │ └── IPostApiClient.kt │ │ │ │ │ └── response │ │ │ │ │ └── PostResponseData.kt │ │ │ ├── mapper │ │ │ │ └── PostDataMapper.kt │ │ │ └── repository │ │ │ │ └── PostRepositoryImpl.kt │ │ │ ├── domain │ │ │ ├── interactor │ │ │ │ ├── GetPostByIdInteractor.kt │ │ │ │ └── GetPostsInteractor.kt │ │ │ ├── model │ │ │ │ └── PostEntity.kt │ │ │ └── repository │ │ │ │ └── PostRepository.kt │ │ │ └── presentation │ │ │ ├── activities │ │ │ ├── PostActivity.kt │ │ │ └── PostsActivity.kt │ │ │ ├── adapters │ │ │ └── RVPostAdapter.kt │ │ │ ├── model │ │ │ ├── PostVM.kt │ │ │ └── mapper │ │ │ │ └── PostVMMapper.kt │ │ │ └── viewmodel │ │ │ ├── PostViewModel.kt │ │ │ ├── PostsViewModel.kt │ │ │ └── state │ │ │ ├── PostVS.kt │ │ │ └── PostsVS.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ ├── ic_book.xml │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── post_activity.xml │ │ ├── post_item.xml │ │ └── posts_activity.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── carlosgub │ └── coroutines │ ├── PostsViewModelTest.kt │ ├── TestData.kt │ ├── learning │ └── MockkLearning.kt │ └── utils │ ├── CoroutinesRule.kt │ └── TestUtils.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── img ├── PostActivity.png └── PostsActivity.png └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | Coroutines Example -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 20 | 22 | 23 | 25 | 26 | 27 | 29 | 30 | 31 |
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134 | 135 | 136 | 137 | 138 | 140 | 141 | -------------------------------------------------------------------------------- /.idea/codeStyles/codeStyleConfig.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 5 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 19 | 20 | -------------------------------------------------------------------------------- /.idea/jarRepositories.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 | 14 | 15 | 19 | 20 | 24 | 25 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Android + MVVM + Coroutines Flow + Koin + Testing :heart: 2 | [![Kotlin](https://img.shields.io/badge/kotlin-1.3.61-blue.svg)](http://kotlinlang.org) [![Gradle](https://img.shields.io/badge/gradle-3.5.0-%2366DCB8.svg)](https://developer.android.com/studio/releases/gradle-plugin) [![Mockk](https://img.shields.io/badge/mockk-1.9.3-orange.svg)](https://mockk.io) [![Retrofit](https://img.shields.io/badge/retrofit-2.7.1-brightgreen)](https://square.github.io/retrofit/) [![Coroutines](https://img.shields.io/badge/coroutines-1.3.3-blueviolet)](https://kotlinlang.org/docs/reference/coroutines-overview.html) [![Coroutines-test](https://img.shields.io/badge/coroutines--test-1.3.0-yellow)](https://github.com/Kotlin/kotlinx.coroutines/tree/master/kotlinx-coroutines-test) [![OkHttp](https://img.shields.io/badge/okhttp-4.2.2-lightgrey)](https://square.github.io/okhttp/) 3 | 4 | This is an example of an Android App who uses coroutines flow to retrieve a list of https://jsonplaceholder.typicode.com/posts but retrieve the data one per one and be added to the RecyclerView. 5 | 6 | ## V2 7 | - Add screen to see the detail of the post (you need to tap an item on the RecyclerView) 8 | - Update Gradle Version to 4.0.1 (you need Android Studio 4.0.1 or upper) 9 | - Update dependencies 10 | 11 | ## V3 (working) 12 | - Change Layouts for Compose :) 13 | 14 | ## ScreenShots 15 | ! ! 16 | 17 | 18 | 19 | ## Dependencies 20 | 21 | - Material[version: '1.2.0'](https://developer.android.com/guide/topics/ui/look-and-feel) 22 | - LifeCycleKtx [version: '2.2.0'](https://developer.android.com/kotlin/ktx) 23 | - Koin [version: '2.0.1'](https://insert-koin.io) 24 | - Coroutines [version: '1.3.7'](https://kotlinlang.org/docs/reference/coroutines-overview.html) 25 | - Coroutines Test [version '1.3.2'](https://github.com/Kotlin/kotlinx.coroutines/tree/master/kotlinx-coroutines-test) 26 | - Retrofit [version: '2.7.2'](https://square.github.io/retrofit/) 27 | - Gson [version:'2.7.2'](https://github.com/google/gson) 28 | - OkHttp 3 [version: '4.2.2'](https://square.github.io/okhttp/) 29 | - Mockk [version: '1.9.3'](https://github.com/mockk/mockk) 30 | - Arch Testing [version: '1.1.1'](https://mvnrepository.com/artifact/android.arch.core/core-testing?repo=google) 31 | - JUnit [version: '4.12'](https://junit.org/junit4/) 32 | 33 | 34 | # References 35 | 36 | 37 | - Asynchronous development in Android: RxJava Vs. Kotlin Flow https://medium.com/makingtuenti/asynchronous-development-in-android-rxjava-vs-kotlin-flow-f7fdf2e2f81b 38 | 39 | - LiveData with Coroutines and Flow (Android Dev Summit '19) https://www.youtube.com/watch?v=B8ppnjGPAGE 40 | 41 | - Reactive scrabble benchmarks https://github.com/Kotlin/kotlinx.coroutines/blob/develop/benchmarks/src/jmh/kotlin/benchmarks/flow/scrabble/README.md 42 | 43 | - Unit-testing LiveData and other common observability problems https://medium.com/androiddevelopers/unit-testing-livedata-and-other-common-observability-problems-bb477262eb04 44 | 45 | - MVVM Testing w/Coroutines https://github.com/emedinaa/kotlin-mvvm/tree/coroutines?fbclid=IwAR1XZW4yr-LuwlOYnVIz_glvsNunsdvloMHq3-Y8iGTNL2F4fJxhLNGizSo 46 | 47 | ## Contributors ✨ 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 |

Carlos Ugaz

Jose Diaz
58 | 59 | 60 | 61 | 62 | 63 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | *.aab 5 | 6 | # Files for the ART/Dalvik VM 7 | *.dex 8 | 9 | # Java class files 10 | *.class 11 | 12 | # Generated files 13 | bin/ 14 | gen/ 15 | out/ 16 | # Uncomment the following line in case you need and you don't have the release build type files in your app 17 | # release/ 18 | 19 | # Gradle files 20 | .gradle/ 21 | build/ 22 | 23 | # Local configuration file (sdk path, etc) 24 | local.properties 25 | 26 | # Proguard folder generated by Eclipse 27 | proguard/ 28 | 29 | # Log Files 30 | *.log 31 | 32 | # Android Studio Navigation editor temp files 33 | .navigation/ 34 | 35 | # Android Studio captures folder 36 | captures/ 37 | 38 | # IntelliJ 39 | *.iml 40 | .idea/workspace.xml 41 | .idea/tasks.xml 42 | .idea/gradle.xml 43 | .idea/assetWizardSettings.xml 44 | .idea/dictionaries 45 | .idea/libraries 46 | # Android Studio 3 in .gitignore file. 47 | .idea/caches 48 | .idea/modules.xml 49 | # Comment next line if keeping position of elements in Navigation Editor is relevant for you 50 | .idea/navEditor.xml 51 | 52 | # Keystore files 53 | # Uncomment the following lines if you do not want to check your keystore files in. 54 | #*.jks 55 | #*.keystore 56 | 57 | # External native build folder generated in Android Studio 2.2 and later 58 | .externalNativeBuild 59 | 60 | # Google Services (e.g. APIs or Firebase) 61 | # google-services.json 62 | 63 | # Freeline 64 | freeline.py 65 | freeline/ 66 | freeline_project_description.json 67 | 68 | # fastlane 69 | fastlane/report.xml 70 | fastlane/Preview.html 71 | fastlane/screenshots 72 | fastlane/test_output 73 | fastlane/readme.md 74 | 75 | # Version control 76 | vcs.xml 77 | 78 | # lint 79 | lint/intermediates/ 80 | lint/generated/ 81 | lint/outputs/ 82 | lint/tmp/ 83 | # lint/reports/ 84 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'kotlin-android-extensions' 4 | apply plugin: 'kotlin-kapt' 5 | 6 | android { 7 | compileSdkVersion 29 8 | buildToolsVersion "29.0.2" 9 | defaultConfig { 10 | applicationId "com.carlosgub.coroutines" 11 | minSdkVersion 21 12 | targetSdkVersion 29 13 | versionCode 1 14 | versionName "1.0" 15 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 16 | 17 | buildConfigField('String', 'URL_SERVER', '"https://jsonplaceholder.typicode.com"') 18 | } 19 | 20 | 21 | buildTypes { 22 | release { 23 | minifyEnabled false 24 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 25 | } 26 | } 27 | 28 | compileOptions { 29 | sourceCompatibility JavaVersion.VERSION_1_8 30 | targetCompatibility JavaVersion.VERSION_1_8 31 | } 32 | } 33 | 34 | dependencies { 35 | implementation fileTree(dir: 'libs', include: ['*.jar','*.aar']) 36 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version" 37 | 38 | //GOOGLE ANDROID 39 | implementation 'com.google.android.material:material:1.2.1' 40 | 41 | //ANDROID X 42 | implementation 'androidx.appcompat:appcompat:1.2.0' 43 | implementation 'androidx.constraintlayout:constraintlayout:2.0.1' 44 | implementation 'androidx.recyclerview:recyclerview:1.1.0' 45 | implementation 'androidx.cardview:cardview:1.0.0' 46 | 47 | //LIFECYCLE 48 | implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0' 49 | implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0" 50 | 51 | //KOIN 52 | implementation 'org.koin:koin-androidx-viewmodel:2.0.1' 53 | 54 | //COROUTINES 55 | implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7" 56 | implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.7" 57 | 58 | //RETROFIT 59 | implementation 'com.squareup.retrofit2:retrofit:2.7.2' 60 | implementation 'com.squareup.retrofit2:converter-gson:2.7.2' 61 | implementation "com.squareup.okhttp3:logging-interceptor:4.2.2" 62 | 63 | //TESTING 64 | testImplementation 'junit:junit:4.12' 65 | testImplementation 'android.arch.core:core-testing:1.1.1' 66 | testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.3.2' 67 | testImplementation 'io.mockk:mockk:1.9.3' 68 | } 69 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 6 | 7 | 8 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/CoroutinesApplication.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines 2 | 3 | import android.app.Application 4 | import com.carlosgub.coroutines.di.modules 5 | import org.koin.android.ext.koin.androidContext 6 | import org.koin.android.ext.koin.androidLogger 7 | import org.koin.core.context.startKoin 8 | 9 | class CoroutinesApplication: Application() { 10 | 11 | override fun onCreate() { 12 | super.onCreate() 13 | startKoin { 14 | androidContext(this@CoroutinesApplication) 15 | androidLogger() 16 | modules(modules) 17 | } 18 | } 19 | 20 | 21 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/core/interactor/Interactor.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.core.interactor 2 | 3 | interface Interactor { 4 | 5 | fun execute(params: Params): Type 6 | 7 | object None 8 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/core/mapper/Mapper.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.core.mapper 2 | 3 | 4 | interface Mapper { 5 | fun map(origin: T): R 6 | 7 | fun map(origin: List): List { 8 | return origin.map(::map) 9 | } 10 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/core/network/BaseApiClient.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.core.network 2 | 3 | import com.carlosgub.coroutines.BuildConfig 4 | import okhttp3.OkHttpClient 5 | import okhttp3.logging.HttpLoggingInterceptor 6 | import retrofit2.Retrofit 7 | import retrofit2.converter.gson.GsonConverterFactory 8 | import java.util.concurrent.TimeUnit 9 | 10 | open class BaseApiClient(private val classT: Class) { 11 | 12 | companion object{ 13 | const val CONNECTION_TIMEOUT: Long = 180L 14 | const val READ_TIMEOUT: Long = 180L 15 | const val WRITE_TIMEOUT: Long = 180L 16 | } 17 | 18 | open fun getApiClient(): T { 19 | val httpLoggingInterceptor = HttpLoggingInterceptor() 20 | httpLoggingInterceptor.level = HttpLoggingInterceptor.Level.BODY 21 | 22 | val okHttpClient = OkHttpClient().newBuilder() 23 | .connectTimeout(CONNECTION_TIMEOUT, TimeUnit.SECONDS) 24 | .readTimeout(READ_TIMEOUT, TimeUnit.SECONDS) 25 | .writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS) 26 | .addInterceptor(httpLoggingInterceptor) 27 | .build() 28 | 29 | val retrofitBuilder = Retrofit.Builder().apply { 30 | baseUrl(BuildConfig.URL_SERVER) 31 | client(okHttpClient) 32 | addConverterFactory(GsonConverterFactory.create()) 33 | } 34 | 35 | 36 | val retrofit = retrofitBuilder.build() 37 | return retrofit.create(classT) 38 | } 39 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/core/platform/BaseViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.core.platform 2 | 3 | import androidx.lifecycle.ViewModel 4 | import org.koin.core.KoinComponent 5 | 6 | abstract class BaseViewModel : ViewModel(), KoinComponent { 7 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/core/utils/CoroutineUtils.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.core.utils 2 | 3 | import kotlinx.coroutines.CoroutineScope 4 | import kotlinx.coroutines.Dispatchers 5 | import kotlinx.coroutines.withContext 6 | 7 | suspend fun io(block: suspend CoroutineScope.() -> Unit) { 8 | withContext(Dispatchers.IO) { 9 | block.invoke(this) 10 | } 11 | } 12 | 13 | suspend fun ui(block: suspend CoroutineScope.() -> Unit) { 14 | withContext(Dispatchers.Main) { 15 | block.invoke(this) 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/di/modules.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.di 2 | 3 | import com.carlosgub.coroutines.features.books.data.datasource.rest.PostRestDataStore 4 | import com.carlosgub.coroutines.features.books.data.repository.PostRepositoryImpl 5 | import com.carlosgub.coroutines.features.books.domain.interactor.GetPostByIdInteractor 6 | import com.carlosgub.coroutines.features.books.domain.interactor.GetPostsInteractor 7 | import com.carlosgub.coroutines.features.books.domain.repository.PostRepository 8 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.PostViewModel 9 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.PostsViewModel 10 | import org.koin.androidx.viewmodel.dsl.viewModel 11 | import org.koin.dsl.module 12 | 13 | private val postModule = module { 14 | 15 | //region ViewModel 16 | viewModel { 17 | PostsViewModel(get()) 18 | } 19 | viewModel { 20 | PostViewModel(get()) 21 | } 22 | //endregion 23 | 24 | //region Interactor 25 | single { 26 | GetPostsInteractor( 27 | get() 28 | ) 29 | } 30 | single { 31 | GetPostByIdInteractor( 32 | get() 33 | ) 34 | } 35 | //endregion 36 | 37 | //region Repository 38 | single { 39 | PostRepositoryImpl(get()) 40 | } 41 | //endregion 42 | 43 | //region Datastore 44 | single { 45 | PostRestDataStore() 46 | } 47 | //endregion 48 | } 49 | 50 | val modules = listOf(postModule) -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/datasource/rest/ApiClient.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.datasource.rest 2 | 3 | import com.carlosgub.coroutines.core.network.BaseApiClient 4 | import com.carlosgub.coroutines.features.books.data.datasource.rest.interfaces.IPostApiClient 5 | 6 | object PostApiClient : BaseApiClient(IPostApiClient::class.java) -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/datasource/rest/PostRestDataStore.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.datasource.rest 2 | 3 | import com.carlosgub.coroutines.features.books.data.datasource.rest.response.PostResponseData 4 | import kotlinx.coroutines.flow.Flow 5 | import kotlinx.coroutines.flow.flow 6 | 7 | class PostRestDataStore { 8 | 9 | fun getPosts(): Flow = flow { 10 | PostApiClient.getApiClient().getPosts().forEach { 11 | emit(it) 12 | } 13 | } 14 | 15 | 16 | fun getPostById(id: String): Flow = flow { 17 | emit(PostApiClient.getApiClient().getPostById(id = id)) 18 | } 19 | 20 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/datasource/rest/interfaces/IPostApiClient.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.datasource.rest.interfaces 2 | import com.carlosgub.coroutines.features.books.data.datasource.rest.response.PostResponseData 3 | import retrofit2.http.GET 4 | import retrofit2.http.Path 5 | 6 | interface IPostApiClient { 7 | @GET("/posts") 8 | suspend fun getPosts(): List 9 | 10 | @GET("/posts/{id}") 11 | suspend fun getPostById(@Path("id") id:String): PostResponseData 12 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/datasource/rest/response/PostResponseData.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.datasource.rest.response 2 | 3 | data class PostResponseData( 4 | val userId: Int?, 5 | val id: Int?, 6 | val title: String?, 7 | val body: String? 8 | ) -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/mapper/PostDataMapper.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.mapper 2 | 3 | import com.carlosgub.coroutines.core.mapper.Mapper 4 | import com.carlosgub.coroutines.features.books.data.datasource.rest.response.PostResponseData 5 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 6 | 7 | class PostDataMapper : Mapper { 8 | override fun map(origin: PostResponseData) = 9 | PostEntity( 10 | userId = origin.userId, 11 | id = origin.id, 12 | title = origin.title, 13 | body = origin.body 14 | ) 15 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/data/repository/PostRepositoryImpl.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.data.repository 2 | 3 | import com.carlosgub.coroutines.features.books.data.datasource.rest.PostRestDataStore 4 | import com.carlosgub.coroutines.features.books.data.mapper.PostDataMapper 5 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 6 | import com.carlosgub.coroutines.features.books.domain.repository.PostRepository 7 | import kotlinx.coroutines.flow.Flow 8 | import kotlinx.coroutines.flow.map 9 | 10 | class PostRepositoryImpl( 11 | private val postRestDataStore: PostRestDataStore 12 | ) : PostRepository { 13 | 14 | private val mPostDataMapper by lazy { PostDataMapper() } 15 | 16 | override fun getPosts(): Flow = 17 | postRestDataStore.getPosts().map{ 18 | mPostDataMapper.map(it) 19 | } 20 | 21 | 22 | 23 | override fun getPostById(id: String): Flow = 24 | postRestDataStore.getPostById(id = id).map { 25 | mPostDataMapper.map(it) 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/domain/interactor/GetPostByIdInteractor.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.domain.interactor 2 | 3 | import com.carlosgub.coroutines.core.interactor.Interactor 4 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 5 | import com.carlosgub.coroutines.features.books.domain.repository.PostRepository 6 | import kotlinx.coroutines.flow.Flow 7 | 8 | class GetPostByIdInteractor( 9 | private val postRepository: PostRepository 10 | ) : Interactor> { 11 | 12 | override fun execute(params: Params): Flow { 13 | return postRepository.getPostById(id = params.id) 14 | } 15 | 16 | data class Params(val id: String) 17 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/domain/interactor/GetPostsInteractor.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.domain.interactor 2 | 3 | import com.carlosgub.coroutines.core.interactor.Interactor 4 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 5 | import com.carlosgub.coroutines.features.books.domain.repository.PostRepository 6 | import kotlinx.coroutines.flow.Flow 7 | 8 | class GetPostsInteractor( 9 | private val postRepository: PostRepository 10 | ) : Interactor> { 11 | 12 | override fun execute(params: Interactor.None): Flow { 13 | return postRepository.getPosts() 14 | } 15 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/domain/model/PostEntity.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.domain.model 2 | 3 | data class PostEntity( 4 | val userId: Int?, 5 | val id: Int?, 6 | val title: String?, 7 | val body: String? 8 | ) -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/domain/repository/PostRepository.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.domain.repository 2 | 3 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 4 | import kotlinx.coroutines.flow.Flow 5 | 6 | interface PostRepository { 7 | fun getPosts(): Flow 8 | fun getPostById(id: String): Flow 9 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/activities/PostActivity.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.activities 2 | 3 | import android.content.Context 4 | import android.content.Intent 5 | import android.os.Bundle 6 | import android.view.View 7 | import android.widget.Toast 8 | import androidx.appcompat.app.AppCompatActivity 9 | import com.carlosgub.coroutines.R 10 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.PostViewModel 11 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostVS 12 | import kotlinx.android.synthetic.main.post_activity.* 13 | import kotlinx.coroutines.ExperimentalCoroutinesApi 14 | import org.koin.androidx.viewmodel.ext.android.viewModel 15 | 16 | class PostActivity : AppCompatActivity() { 17 | 18 | private val viewModel: PostViewModel by viewModel() 19 | private lateinit var id: String 20 | 21 | companion object { 22 | private const val ARG_ID = "arg_id" 23 | fun createInstance(context: Context, id: String): Intent { 24 | return Intent(context, PostActivity::class.java).putExtras( 25 | Bundle().apply { 26 | putString(ARG_ID, id) 27 | } 28 | ) 29 | } 30 | } 31 | 32 | @ExperimentalCoroutinesApi 33 | override fun onCreate(savedInstanceState: Bundle?) { 34 | super.onCreate(savedInstanceState) 35 | setContentView(R.layout.post_activity) 36 | observeViewModel() 37 | intent.extras.let { 38 | id = it?.getString(ARG_ID) ?: "-1" 39 | viewModel.getPostByID(id) 40 | } 41 | 42 | } 43 | 44 | private fun observeViewModel() { 45 | viewModel.viewState.observe(this@PostActivity, { 46 | when (it) { 47 | is PostVS.Post -> { 48 | tvPostITitle.text = String.format(getString(R.string.post_text),it.postVM.title,it.postVM.body) 49 | } 50 | is PostVS.ShowLoader ->{ 51 | if(it.showLoader){ 52 | pbPost.visibility = View.VISIBLE 53 | gPost.visibility = View.GONE 54 | }else{ 55 | pbPost.visibility = View.GONE 56 | gPost.visibility = View.VISIBLE 57 | } 58 | } 59 | is PostVS.Error -> { 60 | Toast.makeText(this, it.message, Toast.LENGTH_SHORT).show() 61 | } 62 | } 63 | }) 64 | } 65 | } 66 | -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/activities/PostsActivity.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.activities 2 | 3 | import android.os.Bundle 4 | import android.view.View 5 | import android.widget.Toast 6 | import androidx.appcompat.app.AppCompatActivity 7 | import androidx.recyclerview.widget.LinearLayoutManager 8 | import com.carlosgub.coroutines.R 9 | import com.carlosgub.coroutines.features.books.presentation.adapters.RVPostAdapter 10 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.PostsViewModel 11 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostsVS 12 | import kotlinx.android.synthetic.main.posts_activity.* 13 | import kotlinx.coroutines.ExperimentalCoroutinesApi 14 | import org.koin.androidx.viewmodel.ext.android.viewModel 15 | 16 | class PostsActivity : AppCompatActivity(), RVPostAdapter.Listener { 17 | 18 | private val viewModel: PostsViewModel by viewModel() 19 | private val mAdapter = RVPostAdapter() 20 | 21 | @ExperimentalCoroutinesApi 22 | override fun onCreate(savedInstanceState: Bundle?) { 23 | super.onCreate(savedInstanceState) 24 | setContentView(R.layout.posts_activity) 25 | observeViewModel() 26 | mAdapter.setListener(this) 27 | 28 | rvPost.apply { 29 | layoutManager = LinearLayoutManager(this@PostsActivity) 30 | adapter = mAdapter 31 | } 32 | 33 | viewModel.getPosts() 34 | } 35 | 36 | private fun observeViewModel(){ 37 | //Obtener los Posts 38 | viewModel.viewState.observe(this@PostsActivity, { 39 | when (it) { 40 | is PostsVS.AddPost -> { 41 | mAdapter.add(it.postVM) 42 | } 43 | is PostsVS.ShowLoader ->{ 44 | if(it.showLoader){ 45 | pbPosts.visibility = View.VISIBLE 46 | rvPost.visibility = View.GONE 47 | }else{ 48 | pbPosts.visibility = View.GONE 49 | rvPost.visibility = View.VISIBLE 50 | } 51 | } 52 | is PostsVS.Error -> { 53 | Toast.makeText(this, it.message, Toast.LENGTH_SHORT).show() 54 | } 55 | } 56 | 57 | }) 58 | } 59 | 60 | override fun onPostClicked(id: Int) { 61 | startActivity(PostActivity.createInstance(context = this, id = id.toString())) 62 | } 63 | } 64 | -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/adapters/RVPostAdapter.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.adapters 2 | 3 | import android.view.LayoutInflater 4 | import android.view.View 5 | import android.view.ViewGroup 6 | import androidx.recyclerview.widget.RecyclerView 7 | import com.carlosgub.coroutines.R 8 | import com.carlosgub.coroutines.features.books.presentation.model.PostVM 9 | import kotlinx.android.synthetic.main.post_item.view.* 10 | 11 | class RVPostAdapter : RecyclerView.Adapter() { 12 | 13 | private val mList: MutableList = mutableListOf() 14 | private var mListener: Listener? = null 15 | 16 | fun add(lstPostVM: PostVM) { 17 | mList.add(lstPostVM) 18 | notifyItemInserted(this.itemCount) 19 | } 20 | 21 | fun setListener(listener: Listener) { 22 | mListener = listener 23 | } 24 | 25 | interface Listener { 26 | fun onPostClicked(id: Int) 27 | } 28 | 29 | override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = ViewHolder( 30 | LayoutInflater.from(parent.context) 31 | .inflate(R.layout.post_item, parent, false) 32 | ) 33 | 34 | override fun getItemCount() = mList.size 35 | 36 | override fun onBindViewHolder(holder: ViewHolder, position: Int) { 37 | holder.bind(mList[position]) 38 | } 39 | 40 | inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) { 41 | fun bind(postVM: PostVM) { 42 | itemView.tvPostItemTitle.text = postVM.title 43 | itemView.cvPostItem.setOnClickListener { 44 | mListener?.onPostClicked(postVM.id ?: 1) 45 | } 46 | } 47 | } 48 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/model/PostVM.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.model 2 | 3 | data class PostVM( 4 | val userId: Int?, 5 | val id: Int?, 6 | val title: String?, 7 | val body: String? 8 | ) -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/model/mapper/PostVMMapper.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.model.mapper 2 | 3 | import com.carlosgub.coroutines.core.mapper.Mapper 4 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 5 | import com.carlosgub.coroutines.features.books.presentation.model.PostVM 6 | 7 | class PostVMMapper : Mapper { 8 | override fun map(origin: PostEntity) = 9 | PostVM( 10 | userId = origin.userId, 11 | id = origin.id, 12 | title = origin.title, 13 | body = origin.body 14 | ) 15 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/viewmodel/PostViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.viewmodel 2 | 3 | import androidx.lifecycle.LiveData 4 | import androidx.lifecycle.MutableLiveData 5 | import androidx.lifecycle.viewModelScope 6 | import com.carlosgub.coroutines.core.platform.BaseViewModel 7 | import com.carlosgub.coroutines.core.utils.io 8 | import com.carlosgub.coroutines.core.utils.ui 9 | import com.carlosgub.coroutines.features.books.domain.interactor.GetPostByIdInteractor 10 | import com.carlosgub.coroutines.features.books.presentation.model.mapper.PostVMMapper 11 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostVS 12 | import kotlinx.coroutines.flow.collect 13 | import kotlinx.coroutines.launch 14 | 15 | class PostViewModel( 16 | private val getPostByIdInteractor: GetPostByIdInteractor 17 | ) : BaseViewModel() { 18 | 19 | val viewState: LiveData get() = mViewState 20 | private val mViewState = MutableLiveData() 21 | 22 | private val mPostVMMapper by lazy { PostVMMapper() } 23 | 24 | fun getPostByID(id: String) { 25 | viewModelScope.launch { 26 | mViewState.value = PostVS.ShowLoader(true) 27 | try { 28 | io { 29 | getPostByIdInteractor.execute(GetPostByIdInteractor.Params(id = id)) 30 | .collect { 31 | ui { 32 | mViewState.value = PostVS.Post(mPostVMMapper.map(it)) 33 | } 34 | } 35 | } 36 | } catch (e: Exception) { 37 | ui { 38 | mViewState.value = PostVS.Error(e.message) 39 | } 40 | } 41 | mViewState.value = PostVS.ShowLoader(false) 42 | } 43 | } 44 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/viewmodel/PostsViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.viewmodel 2 | 3 | import androidx.lifecycle.LiveData 4 | import androidx.lifecycle.MutableLiveData 5 | import androidx.lifecycle.viewModelScope 6 | import com.carlosgub.coroutines.core.interactor.Interactor 7 | import com.carlosgub.coroutines.core.platform.BaseViewModel 8 | import com.carlosgub.coroutines.core.utils.io 9 | import com.carlosgub.coroutines.core.utils.ui 10 | import com.carlosgub.coroutines.features.books.domain.interactor.GetPostsInteractor 11 | import com.carlosgub.coroutines.features.books.presentation.model.mapper.PostVMMapper 12 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostsVS 13 | import kotlinx.coroutines.flow.collect 14 | import kotlinx.coroutines.launch 15 | 16 | class PostsViewModel( 17 | private val getPostsInteractor: GetPostsInteractor 18 | ) : BaseViewModel() { 19 | 20 | val viewState: LiveData get() = mViewState 21 | private val mViewState = MutableLiveData() 22 | 23 | private val mPostVMMapper by lazy { PostVMMapper() } 24 | 25 | fun getPosts() { 26 | viewModelScope.launch { 27 | mViewState.value = PostsVS.ShowLoader(true) 28 | try { 29 | io { 30 | getPostsInteractor.execute(Interactor.None) 31 | .collect { 32 | ui { mViewState.value = PostsVS.AddPost(mPostVMMapper.map(it)) } 33 | } 34 | } 35 | } catch (e: Exception) { 36 | ui { mViewState.value = PostsVS.Error(e.message) } 37 | } 38 | mViewState.value = PostsVS.ShowLoader(false) 39 | } 40 | } 41 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/viewmodel/state/PostVS.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.viewmodel.state 2 | 3 | import com.carlosgub.coroutines.features.books.presentation.model.PostVM 4 | 5 | sealed class PostVS { 6 | class Post(val postVM: PostVM):PostVS() 7 | class Error(val message:String?):PostVS() 8 | class ShowLoader(val showLoader:Boolean):PostVS() 9 | } -------------------------------------------------------------------------------- /app/src/main/java/com/carlosgub/coroutines/features/books/presentation/viewmodel/state/PostsVS.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.features.books.presentation.viewmodel.state 2 | 3 | import com.carlosgub.coroutines.features.books.presentation.model.PostVM 4 | 5 | sealed class PostsVS { 6 | class AddPost(val postVM: PostVM):PostsVS() 7 | class Error(val message:String?):PostsVS() 8 | class ShowLoader(val showLoader:Boolean):PostsVS() 9 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_book.xml: -------------------------------------------------------------------------------- 1 | 6 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/post_activity.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 12 | 13 | 19 | 20 | 26 | 27 | 33 | 34 | 40 | 41 | 49 | 50 | 56 | 57 | 66 | 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-------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #008577 4 | #00574B 5 | #D81B60 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | Coroutines Example 3 | 4 | %s\n\n%s 5 | 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/carlosgub/coroutines/PostsViewModelTest.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines 2 | 3 | import androidx.arch.core.executor.testing.InstantTaskExecutorRule 4 | import androidx.lifecycle.Observer 5 | import com.carlosgub.coroutines.core.interactor.Interactor 6 | import com.carlosgub.coroutines.features.books.domain.interactor.GetPostsInteractor 7 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.PostsViewModel 8 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostVS 9 | import com.carlosgub.coroutines.features.books.presentation.viewmodel.state.PostsVS 10 | import com.carlosgub.coroutines.utils.CoroutinesRule 11 | import com.carlosgub.coroutines.utils.getOrAwaitValue 12 | import io.mockk.* 13 | import kotlinx.coroutines.ExperimentalCoroutinesApi 14 | import kotlinx.coroutines.flow.asFlow 15 | import org.junit.* 16 | 17 | class PostsViewModelTest { 18 | 19 | @get:Rule 20 | val rule = InstantTaskExecutorRule() 21 | 22 | @ExperimentalCoroutinesApi 23 | @get:Rule 24 | var coroutinesRule = CoroutinesRule() 25 | 26 | private val useCaseMock = mockk() 27 | private lateinit var viewModel: PostsViewModel 28 | private val observer = mockk>(relaxed = true) 29 | 30 | @Before 31 | fun setup() { 32 | viewModel = PostsViewModel(useCaseMock) 33 | viewModel.viewState.observeForever(observer) 34 | } 35 | 36 | @Test 37 | fun `retrieve posts successful`() { 38 | coEvery { useCaseMock.execute(Interactor.None) } returns TestData.dataList.asFlow() 39 | viewModel.getPosts() 40 | viewModel.viewState.getOrAwaitValue() 41 | verify(exactly = 3) { observer.onChanged(any()) } 42 | } 43 | 44 | @Test 45 | fun `retrieve posts failure`() { 46 | coEvery { useCaseMock.execute(Interactor.None) } throws UnsupportedOperationException() 47 | viewModel.getPosts() 48 | viewModel.viewState.getOrAwaitValue() 49 | verify { observer.onChanged(any()) } 50 | } 51 | 52 | @Suppress("UNREACHABLE_CODE") 53 | @Test(expected = UnsupportedOperationException::class) 54 | fun `retrieve posts with exception`() { 55 | coEvery { useCaseMock.execute(Interactor.None) } returns throw UnsupportedOperationException() 56 | viewModel.getPosts() 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /app/src/test/java/com/carlosgub/coroutines/TestData.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines 2 | 3 | import com.carlosgub.coroutines.features.books.domain.model.PostEntity 4 | 5 | object TestData { 6 | val dataEmpty = emptyList() 7 | val dataList = listOf( 8 | PostEntity(1, 1, "Harry Potter 1", "First book"), 9 | PostEntity(2, 2, "Harry Potter 2", "Second book"), 10 | PostEntity(3, 3, "Harry Potter 3", "Third book") 11 | ) 12 | } -------------------------------------------------------------------------------- /app/src/test/java/com/carlosgub/coroutines/learning/MockkLearning.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.learning 2 | 3 | import io.mockk.* 4 | import junit.framework.Assert.assertEquals 5 | import org.junit.Test 6 | 7 | /** 8 | * @author Carlos Ugaz 9 | * @see https://blog.kotlin-academy.com/mocking-is-not-rocket-science-mockk-features-e5d55d735a98 10 | */ 11 | 12 | class MockkLearning { 13 | class Divider { 14 | fun divide(a: Int, b: Int) = a / b 15 | } 16 | 17 | @Test 18 | fun `trying slot by mockK`() { 19 | val slot = slot() //Almacena un valor 20 | val mock = mockk() 21 | 22 | /** 23 | * Si se usa la funcion divide de la clase Divider 24 | * este regresara 22, pero aparte el capture(slot) obtendra el valor 25 | * ingresado en el primer parametro y lo guardara en la variable slot 26 | * PD: el any() es que no importa el segundo valor traera 22, el capture(x) 27 | * tambien seria como un any() pero que captura el valor ingresado 28 | */ 29 | every { mock.divide(capture(slot), any()) } returns 22 30 | 31 | /** 32 | * Se esta llamando la clase divide y cualquier valor que se ingrese 33 | * regresara 22, ahora como se ingreso 5 en el primer parametro se le asignara 34 | * ese valor a la variable slot 35 | * slot <- 5 36 | */ 37 | mock.divide(5, 2) 38 | 39 | /** 40 | * Verificamos que el valor asignado a slot sea 5 41 | * Si es 5 el Test pasara sin problema 42 | */ 43 | assertEquals(5, slot.captured) 44 | } 45 | 46 | @Test 47 | fun `trying slot by mockK with answers`() { 48 | val slot = slot() //Almacena un valor 49 | val mock = mockk() 50 | 51 | /** 52 | * Es la misma explicacion del ejercicio anterior, 53 | * la diferencia que el valor a retornar si llamamos la 54 | * funcion divide seria el valor del primer parametro * 11 55 | */ 56 | every { 57 | mock.divide(capture(slot), any()) 58 | } answers { 59 | slot.captured * 11 60 | } 61 | 62 | /** 63 | * Es la misma explicacion del ejercicio anterior, 64 | * solo que ahora el valor que regresa es 55 65 | */ 66 | val result = mock.divide(5, 2) 67 | 68 | /** 69 | * Verificamos que la variable result tenga asignado el valor 55 70 | */ 71 | assertEquals(55, result) 72 | } 73 | 74 | @Test 75 | fun `trying slot like mutableList by mockK with `() { 76 | val slot = mutableListOf() //Almacena un conjunto de valores 77 | val mock = mockk() 78 | 79 | /** 80 | * En este caso slot puede almacenar muchas variables 81 | */ 82 | every { 83 | mock.divide(capture(slot), any()) 84 | } answers { 85 | slot[0] * 11 86 | } 87 | 88 | /** 89 | * Es la misma explicacion del ejercicio anterior 90 | */ 91 | val result = mock.divide(5, 2) 92 | 93 | /** 94 | * Verificamos que la variable result tenga asignado el valor 55 95 | */ 96 | assertEquals(55, result) 97 | } 98 | 99 | @Test 100 | fun `trying relaxed mocks when we dont want to declare some return in every callback `() { 101 | /** 102 | * Usamos (relaxed = true) cuando no usaremos el every, ya que 103 | * no sabemos el comportamiento de la clase que estamos 'mockeando' y queremos que mockK 104 | * nos retorne un valor basico como 0 o null 105 | */ 106 | val mock = mockk(relaxed = true) 107 | 108 | /** 109 | * Verificamos que la division sea 0 (porque la funcion regresa un entero (INT) y el defecto es 0) 110 | * , ya que no hemos agregado el valor que deberia regrear anteriormente. 111 | */ 112 | verify(exactly = 0) { mock.divide(5, 2) } 113 | } 114 | 115 | class Adder { 116 | fun magnify(a: Int) = a 117 | 118 | fun add(a: Int, b: Int) = a + magnify(b) 119 | } 120 | 121 | @Test 122 | fun `trying Spies `() { 123 | 124 | val spy = spyk(Adder()) 125 | 126 | /** 127 | * Modifica la funcion magnify de la clase Adder regresando el valor de magnify * 2 128 | */ 129 | every { spy.magnify(any()) } answers { firstArg() * 2 } 130 | 131 | /** 132 | * Verificamos si el valor 5 se multiplica por 2, por lo anterior dicho 133 | * y al sumarse con el 4 el resultado deberia ser 14. 134 | */ 135 | assertEquals(14, spy.add(4, 5)) 136 | } 137 | 138 | 139 | } 140 | -------------------------------------------------------------------------------- /app/src/test/java/com/carlosgub/coroutines/utils/CoroutinesRule.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.utils 2 | 3 | import kotlinx.coroutines.Dispatchers 4 | import kotlinx.coroutines.ExperimentalCoroutinesApi 5 | import kotlinx.coroutines.test.TestCoroutineDispatcher 6 | import kotlinx.coroutines.test.resetMain 7 | import kotlinx.coroutines.test.setMain 8 | import org.junit.rules.TestWatcher 9 | import org.junit.runner.Description 10 | 11 | @ExperimentalCoroutinesApi 12 | class CoroutinesRule( 13 | val testDispatcher: TestCoroutineDispatcher = TestCoroutineDispatcher() 14 | ) : TestWatcher() { 15 | 16 | override fun starting(description: Description?) { 17 | super.starting(description) 18 | Dispatchers.setMain(testDispatcher) 19 | } 20 | 21 | override fun finished(description: Description?) { 22 | super.finished(description) 23 | Dispatchers.resetMain() 24 | testDispatcher.cleanupTestCoroutines() 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/test/java/com/carlosgub/coroutines/utils/TestUtils.kt: -------------------------------------------------------------------------------- 1 | package com.carlosgub.coroutines.utils 2 | 3 | import androidx.annotation.VisibleForTesting 4 | import androidx.lifecycle.LiveData 5 | import androidx.lifecycle.Observer 6 | import java.util.concurrent.CountDownLatch 7 | import java.util.concurrent.TimeUnit 8 | import java.util.concurrent.TimeoutException 9 | 10 | // Informacion 11 | // https://medium.com/androiddevelopers/unit-testing-livedata-and-other-common-observability-problems-bb477262eb04 12 | 13 | @VisibleForTesting 14 | fun LiveData.getOrAwaitValue( 15 | time: Long = 3, 16 | timeUnit: TimeUnit = TimeUnit.SECONDS 17 | ): T? { 18 | var data: T? = null 19 | val latch = CountDownLatch(1) 20 | val observer = object : Observer { 21 | override fun onChanged(o: T?) { 22 | data = o 23 | latch.countDown() 24 | this@getOrAwaitValue.removeObserver(this) 25 | } 26 | } 27 | this.observeForever(observer) 28 | 29 | if (!latch.await(time, timeUnit)) { 30 | throw TimeoutException("Value was never set") 31 | } 32 | return data 33 | } 34 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | ext.kotlin_version = '1.4.0' 5 | repositories { 6 | google() 7 | jcenter() 8 | 9 | } 10 | dependencies { 11 | classpath 'com.android.tools.build:gradle:4.0.1' 12 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" 13 | // NOTE: Do not place your application dependencies here; they belong 14 | // in the individual module build.gradle files 15 | } 16 | } 17 | 18 | allprojects { 19 | repositories { 20 | google() 21 | jcenter() 22 | 23 | } 24 | } 25 | 26 | task clean(type: Delete) { 27 | delete rootProject.buildDir 28 | } 29 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx1536m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | # AndroidX package structure to make it clearer which packages are bundled with the 15 | # Android operating system, and which are packaged with your app's APK 16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn 17 | android.useAndroidX=true 18 | # Automatically convert third-party libraries to use AndroidX 19 | android.enableJetifier=true 20 | # Kotlin code style for this project: "official" or "obsolete": 21 | kotlin.code.style=official 22 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/carlosgub/Coroutines-MVVM-Koin-Example/b445ea886d1f6609006fb9ef444d879892d3fae7/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Sep 22 12:15:03 PET 2020 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /img/PostActivity.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/carlosgub/Coroutines-MVVM-Koin-Example/b445ea886d1f6609006fb9ef444d879892d3fae7/img/PostActivity.png -------------------------------------------------------------------------------- /img/PostsActivity.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/carlosgub/Coroutines-MVVM-Koin-Example/b445ea886d1f6609006fb9ef444d879892d3fae7/img/PostsActivity.png -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | rootProject.name='Coroutines Example' 3 | --------------------------------------------------------------------------------