Issue#35 Jacoco works for Java modules and UnitTests.

- Not on AndroidTest (issue reported).
- Not aggregated.

build.gradle

@@ -8,6 +8,7 @@ buildscript {
     ext.compileSdkVersion = 32
     ext.minSdkVersion = 21
     ext.targetSdkVersion = 32
+    ext.jacoco_version = "0.8.8"
     repositories {
         mavenCentral()
         google()
@@ -20,6 +21,7 @@ buildscript {
         classpath "com.google.dagger:hilt-android-gradle-plugin:$hilt_version"
         classpath "org.jlleitschuh.gradle:ktlint-gradle:10.2.1"
         classpath "io.gitlab.arturbosch.detekt:detekt-gradle-plugin:$detekt_version"
+        classpath "org.jacoco:org.jacoco.core:$jacoco_version"
     }
 }
 
@@ -50,3 +52,4 @@ apply from: 'gradlescripts/testoptions.gradle'
 apply from: 'gradlescripts/test.tasks.gradle'
 apply from: 'gradlescripts/testdependencies.gradle'
 apply from: 'gradlescripts/disable.test.task.gradle'
+apply from: 'gradlescripts/jacoco.config.gradle'

gradlescripts/jacoco.config.gradle

@@ -0,0 +1,88 @@
+def androidFileFilter =
+        [ //jdk
+          'jdk.internal.*',
+          // data binding
+          '**/databinding/*.class',
+          '**/BR.*',
+          // android
+          '**/R.class',
+          '**/R$*.class',
+          '**/BuildConfig.*',
+          '**/Manifest*.*',
+          '**/*Test*.*',
+          'android/**/*.*',
+          // kotlin
+          '**/*MapperImpl*.*',
+          '**/*$ViewInjector*.*',
+          '**/*$ViewBinder*.*',
+          '**/BuildConfig.*',
+          '**/*Component*.*',
+          '**/*BR*.*',
+          '**/Manifest*.*',
+          '**/*$Lambda$*.*',
+          '**/*Companion*.*',
+          '**/*Module*.*',
+          '**/*Dagger*.*',
+          '**/*Hilt*.*',
+          '**/*MembersInjector*.*',
+          '**/*_MembersInjector.class',
+          '**/*_Factory*.*',
+          '**/*_Provide*Factory*.*',
+          '**/*Extensions*.*',
+          // sealed and data classes
+          '**/*$Result.*',
+          '**/*$Result$*.*',
+          // adapters generated by moshi
+          '**/*JsonAdapter.*',
+          // room
+          '**/*_Impl.class',
+          '**/*_Impl*.*',
+        ]
+
+subprojects { module ->
+    plugins.withType(JavaPlugin).whenPluginAdded {
+        configure(module) {
+            apply plugin: "jacoco"
+
+            jacocoTestReport {
+                dependsOn test // tests are required to run before generating the report
+
+                afterEvaluate {
+                    classDirectories.setFrom(files(classDirectories.files.collect {
+                        fileTree(dir: it, exclude: androidFileFilter)
+                    }))
+                }
+            }
+        }
+    }
+
+    plugins.withId("com.android.application") {
+        configure(module) {
+            apply plugin: "jacoco"
+
+            module.android.testOptions.unitTests.all {
+                jacoco.includeNoLocationClasses = true
+                jacoco.excludes = androidFileFilter
+            }
+            android.buildTypes.debug.enableAndroidTestCoverage true
+            android.buildTypes.debug.enableUnitTestCoverage true
+
+            jacoco.toolVersion = "$jacoco_version"
+        }
+    }
+
+    plugins.withId("com.android.library") {
+        configure(module) {
+            apply plugin: "jacoco"
+
+            module.android.testOptions.unitTests.all {
+                jacoco.includeNoLocationClasses = true
+                jacoco.excludes = androidFileFilter
+            }
+            android.buildTypes.debug.enableAndroidTestCoverage true
+            android.buildTypes.debug.enableUnitTestCoverage true
+
+            jacoco.toolVersion = "$jacoco_version"
+        }
+    }
+}