Add jacoco implementation

.gitignore

@@ -132,4 +132,6 @@ fastlane/Fastfile
 
 Gemfile
 
-mapping/
+mapping/
+
+**/*.exec

api/build.gradle

@@ -28,6 +28,7 @@ android {
 
         debug {
             minifyEnabled false
+            testCoverageEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }

app/build.gradle

@@ -33,6 +33,7 @@ android {
             minifyEnabled false
             shrinkResources false
 
+            testCoverageEnabled true
             applicationIdSuffix ".debug"
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }

build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.32'
+    ext.kotlin_version = '1.5.30'
 
     repositories {
         google()
@@ -10,10 +10,13 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:4.2.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jacoco:org.jacoco.core:0.8.7"
     }
 }
 
 allprojects {
+    apply plugin: 'jacoco'
+
     repositories {
         google()
         mavenCentral()
@@ -35,4 +38,54 @@ ext {
 
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}
+
+jacoco {
+    toolVersion = "0.8.7"
+}
+
+
+task jacocoFullReport(type: JacocoReport) {
+    group = 'Reporting'
+    description = "Generate Jacoco coverage reports for the debug build"
+
+    reports {
+        html {
+            enabled true
+            destination file('build/reports/jacoco/html')
+        }
+        xml {
+            enabled true
+            destination file('build/reports/jacoco/jacocoFullReport.xml')
+        }
+    }
+
+    dependsOn ":app:testDebugUnitTest"
+    dependsOn ":api:testDebugUnitTest"
+    dependsOn ":db:testDebugUnitTest"
+    dependsOn ":app:connectedAndroidTest"
+
+    final fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', 'android/**/*.*']
+
+    classDirectories.setFrom files([
+            fileTree(dir: "$project.rootDir/app/build/intermediates/javac/debug", excludes: fileFilter),
+            fileTree(dir: "$project.rootDir/app/build/tmp/kotlin-classes/debug", excludes: fileFilter),
+            fileTree(dir: "$project.rootDir/api/build/intermediates/javac/debug", excludes: fileFilter),
+            fileTree(dir: "$project.rootDir/api/build/tmp/kotlin-classes/debug", excludes: fileFilter),
+            fileTree(dir: "$project.rootDir/db/build/tmp/kotlin-classes/debug", excludes: fileFilter),
+    ])
+    def coverageSourceDirs = [
+            "$project.rootDir/app/src/main/java",
+            "$project.rootDir/api/src/main/java",
+            "$project.rootDir/db/src/main/java",
+    ]
+
+    additionalSourceDirs.setFrom files(coverageSourceDirs)
+    sourceDirectories.setFrom files(coverageSourceDirs)
+    executionData.setFrom fileTree(dir: project.rootDir, includes: [
+            'app/jacoco.exec',
+            'db/jacoco.exec',
+            'api/jacoco.exec',
+            'app/build/outputs/code_coverage/debugAndroidTest/connected/*-coverage.ec'
+    ])
+}

db/build.gradle

@@ -40,6 +40,7 @@ android {
 
         debug {
             minifyEnabled false
+            testCoverageEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
@@ -53,6 +54,14 @@ android {
     }
 }
 
+// Needed for kapt starting with kotlin plugin 1.5
+kapt {
+    arguments {
+        arg("room.schemaLocation", "$projectDir/schemas".toString())
+        arg("room.incremental", "true")
+    }
+}
+
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 

gradle.properties

@@ -12,7 +12,6 @@ org.gradle.jvmargs=-Xmx1536m
 android.databinding.incremental=true
 kapt.incremental.apt=true
 org.gradle.parallel=true
-kotlin.parallel.tasks.in.project=true
 android.defaults.buildfeatures.buildconfig=false