ci: Instrumentation tests coverage in ci.

.gitea/workflows/on_pr.yml

@@ -44,20 +44,20 @@ jobs:
           api-level: 29
           script: |
             ./gradlew androidApp:createScreenshotDirectory
-            ./gradlew androidApp:connectedAndroidTest || true
+            ./gradlew JacocoDebugCodeCoverage || true
             ./gradlew androidApp:fetchScreenshots
       - uses: actions/upload-artifact@v3
         if: always()
         with:
           name: failure-espresso
-          path: build/reports/androidTests/connected/screenshots
+          path: androidApp/build/reports/androidTests/connected/screenshots
           retention-days: 2
           overwrite: true
           include-hidden-files: true
       - uses: actions/upload-artifact@v3
         with:
           name: coverage-espresso
-          path: androidApp/build/reports/coverage/androidTest/githubConfig/debug/connected
+          path: androidApp/build/reports/jacoco/JacocoDebugCodeCoverage
           retention-days: 1
           overwrite: true
           include-hidden-files: true

androidApp/build.gradle.kts

@@ -10,6 +10,7 @@ plugins {
     id("com.mikepenz.aboutlibraries.plugin")
     id("org.jetbrains.kotlinx.kover")
     id("app.cash.sqldelight") version "2.0.2"
+    jacoco
 }
 
 fun Project.execWithOutput(
@@ -64,6 +65,15 @@ fun versionNameFromGit(): String {
     return gitVersion()
 }
 
+val exclusions =
+    listOf(
+        "**/R.class",
+        "**/R\$*.class",
+        "**/BuildConfig.*",
+        "**/Manifest*.*",
+        "**/*Test*.*",
+    )
+
 android {
     compileOptions {
         isCoreLibraryDesugaringEnabled = true
@@ -114,6 +124,39 @@ android {
             installation {
                 installOptions("-g", "-r")
             }
+
+            val androidTests = "connectedAndroidTest"
+            tasks.register<JacocoReport>("JacocoDebugCodeCoverage") {
+                // Depend on unit tests and Android tests tasks
+                dependsOn(listOf(androidTests))
+                // Set task grouping and description
+                group = "Reporting"
+                description = "Execute UI and unit tests, generate and combine Jacoco coverage report"
+                // Configure reports to generate both XML and HTML formats
+                reports {
+                    xml.required.set(true)
+                    html.required.set(true)
+                }
+                // Set source directories to the main source directory
+                sourceDirectories.setFrom(layout.projectDirectory.dir("src/main"))
+                // Set class directories to compiled Java and Kotlin classes, excluding specified exclusions
+                classDirectories.setFrom(
+                    files(
+                        fileTree(layout.buildDirectory.dir("intermediates/javac/")) {
+                            exclude(exclusions)
+                        },
+                        fileTree(layout.buildDirectory.dir("tmp/kotlin-classes/")) {
+                            exclude(exclusions)
+                        },
+                    ),
+                )
+                // Collect execution data from .exec and .ec files generated during test execution
+                executionData.setFrom(
+                    files(
+                        fileTree(layout.buildDirectory) { include(listOf("**/*.exec", "**/*.ec")) },
+                    ),
+                )
+            }
         }
     }
     flavorDimensions.add("build")
@@ -268,3 +311,12 @@ tasks.register<Exec>("fetchScreenshots") {
         reportsDirectory.mkdirs()
     }
 }
+
+tasks.withType(Test::class) {
+    if (this.name == "connectedAndroidTest") {
+        configure<JacocoTaskExtension> {
+            isIncludeNoLocationClasses = true
+            excludes = listOf("jdk.internal.*")
+        }
+    }
+}