feat: Kotlin unit tests

.github/workflows/unit-tests-android.yml

@@ -0,0 +1,39 @@
+name: unit-tests-android
+
+on:
+  pull_request:
+    branches:
+      - 'master'
+  push:
+    branches:
+      - 'master'
+
+jobs:
+  tests-android:
+    name: Android Unit Tests
+    runs-on: macos-12
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use Node 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      - name: Install node_modules
+        working-directory: example
+        run: yarn install && yarn rn-setup
+
+      - name: Use JDK 17
+        uses: actions/setup-java@v2
+        with:
+          java-version: '17'
+          distribution: 'zulu'
+
+      - name: Use Android SDK
+        uses: android-actions/setup-android@v2
+
+      - name: Run Android unit tests
+        working-directory: lib/android
+        run: ./gradlew testDebugUnitTest --stacktrace --no-daemon

lib/.eslintignore

@@ -2,3 +2,5 @@ node_modules
 dist
 src/protos
 example
+ios/*
+android/*

lib/android/.java-version

@@ -0,0 +1 @@
+zulu64-11.0.22

lib/android/build.gradle

@@ -6,17 +6,20 @@ buildscript {
     google()
     mavenCentral()
     jcenter()
+    maven { url = uri("https://plugins.gradle.org/m2/") }
   }
 
   dependencies {
-    classpath 'com.android.tools.build:gradle:3.5.4'
+    classpath("com.android.tools.build:gradle:7.1.3")
     // noinspection DifferentKotlinGradleVersion
     classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    classpath("com.adarshr:gradle-test-logger-plugin:2.0.0")
   }
 }
 
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
+apply plugin: 'org.jetbrains.kotlin.android'
+apply plugin: "com.adarshr.test-logger"
 
 def getExtOrDefault(name) {
   return rootProject.ext.has(name) ? rootProject.ext.get(name) : project.properties['Ldk_' + name]
@@ -125,7 +128,15 @@ def kotlin_version = getExtOrDefault('kotlinVersion')
 dependencies {
   // noinspection GradleDynamicVersion
   api 'com.facebook.react:react-native:+'
-  implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+  implementation(platform("org.jetbrains.kotlin:kotlin-bom:$kotlin_version"))
   // implementation files('libs/ldk-java-javadoc.jar') // Used to get code completion in Kotlin but won't compile with it
   compileOnly files('libs/LDK-release.aar')
+
+  // Unit testing dependencies
+  testImplementation project(':')
+  testImplementation files('libs/ldk-java.jar') // Needs jvm11 aarch64 for tests with LDK references
+  testImplementation("junit:junit:4.13.2")
+  testImplementation("org.jetbrains.kotlin:kotlin-test")
+  testImplementation("org.mockito.kotlin:mockito-kotlin:3.2.0")
+  testImplementation("org.robolectric:robolectric:4.7.3")
 }

lib/android/gradle.properties

@@ -1,3 +1,4 @@
-Ldk_kotlinVersion=1.6.10
+Ldk_kotlinVersion=1.8.0
 Ldk_compileSdkVersion=29
 Ldk_targetSdkVersion=29
+android.useAndroidX=true

lib/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists