Adding test module

app/src/androidTest/java/com/ericampire/android/androidstudycase/room/CoroutineTestRule.kt

@@ -1,26 +0,0 @@
-package com.ericampire.android.androidstudycase.room
-
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.test.TestCoroutineDispatcher
-import kotlinx.coroutines.test.resetMain
-import kotlinx.coroutines.test.setMain
-import org.junit.rules.TestWatcher
-import org.junit.runner.Description
-
-@ExperimentalCoroutinesApi
-class CoroutineTestRule(
-  val testDispatcher: TestCoroutineDispatcher = TestCoroutineDispatcher()
-) : TestWatcher() {
-
-  override fun starting(description: Description?) {
-    super.starting(description)
-    Dispatchers.setMain(testDispatcher)
-  }
-
-  override fun finished(description: Description?) {
-    super.finished(description)
-    Dispatchers.resetMain()
-    testDispatcher.cleanupTestCoroutines()
-  }
-}

build.gradle.kts

@@ -1,19 +1,19 @@
 buildscript {
-    repositories {
-        google()
-        mavenCentral()
-        gradlePluginPortal()
-        maven {
-            url = uri("https://oss.sonatype.org/content/repositories/snapshots")
-        }
-    }
-    dependencies {
-        classpath(Libs.kotlin_gradle_plugin)
-        classpath(Libs.gradle_plugin)
-        classpath(Libs.hilt_gradle_plugin)
+  repositories {
+    google()
+    mavenCentral()
+    gradlePluginPortal()
+    maven {
+      url = uri("https://oss.sonatype.org/content/repositories/snapshots")
     }
+  }
+  dependencies {
+    classpath(Libs.kotlin_gradle_plugin)
+    classpath(Libs.gradle_plugin)
+    classpath(Libs.hilt_gradle_plugin)
+  }
 }
 
 tasks.register("clean", Delete::class) {
-    delete(rootProject.buildDir)
+  delete(rootProject.buildDir)
 }

buildSrc/src/main/kotlin/Libs.kt

@@ -63,6 +63,9 @@ object Libs {
   const val junit4 = "junit:junit:_"
   const val junit_jupiter_api = "org.junit.jupiter:junit-jupiter-api:_"
   const val junit_jupiter_engine = "org.junit.jupiter:junit-jupiter-engine:_"
+  const val junit_jupiter_params = "org.junit.jupiter:junit-jupiter-params:_"
+
+  const val junit_vintage_engine = "org.junit.vintage:junit-vintage-engine:_"
 
   // Todo: Put this in the version.properties file
   const val firebase_bom = "com.google.firebase:firebase-bom:28.1.0"

settings.gradle.kts

@@ -20,3 +20,4 @@ include(":util")
 include(":i18n")
 include(":data")
 include(":domain")
+//include(":test-shared")

test-shared/.gitignore

@@ -0,0 +1 @@
+/build

test-shared/build.gradle.kts

@@ -0,0 +1,40 @@
+plugins {
+  id("com.android.library")
+  id("kotlin-android")
+  kotlin("kapt")
+}
+
+android {
+  compileSdk = Apps.compileSdk
+  buildToolsVersion = Apps.buildToolsVersion
+
+  defaultConfig {
+    minSdk = Apps.minSdk
+    targetSdk = Apps.targetSdk
+
+    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    consumerProguardFiles("consumer-rules.pro")
+  }
+
+  buildTypes {
+    release {
+      isMinifyEnabled = false
+      proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+    }
+  }
+  compileOptions {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+  }
+}
+
+dependencies {
+  implementation(platform(Libs.kotlin_coroutine_bom))
+  implementation(Libs.kotlin_coroutine_core)
+  implementation(Libs.kotlin_coroutine_test)
+
+  implementation(Libs.junit_jupiter_api)
+  implementation(Libs.junit_jupiter_engine)
+
+  testImplementation(Libs.mockk_core)
+}

test-shared/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.kts.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

test-shared/src/main/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="com.ericampire.android.androidstudycase.testshared">
+
+</manifest>

test-shared/src/main/java/com/ericampire/android/androidstudycase/testshared/MainCoroutineRule.kt

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.ericampire.android.androidstudycase.testshared
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestCoroutineDispatcher
+import kotlinx.coroutines.test.TestCoroutineScope
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runBlockingTest
+import kotlinx.coroutines.test.setMain
+import org.junit.jupiter.api.AfterAll
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.extension.AfterAllCallback
+import org.junit.jupiter.api.extension.BeforeAllCallback
+import org.junit.jupiter.api.extension.ExtensionContext
+
+@ExperimentalCoroutinesApi
+class MainCoroutineExtension(
+  val testDispatcher: TestCoroutineDispatcher = TestCoroutineDispatcher()
+) : BeforeAllCallback, AfterAllCallback {
+
+  override fun beforeAll(context: ExtensionContext?) {
+    Dispatchers.setMain(testDispatcher)
+  }
+
+  override fun afterAll(context: ExtensionContext?) {
+    Dispatchers.resetMain()
+    testDispatcher.cleanupTestCoroutines()
+  }
+}
+
+//fun MainCoroutineRule.runBlockingTest(block: suspend TestCoroutineScope.() -> Unit) =
+//  this.testDispatcher.runBlockingTest {
+//    block()
+//  }
+//
+///**
+// * Creates a new [CoroutineScope] with the rule's testDispatcher
+// */
+//fun MainCoroutineRule.CoroutineScope(): CoroutineScope = CoroutineScope(testDispatcher)