ci: Add JaCoCo coverage reporting to workflows and build setup

.github/workflows/build.yml

@@ -115,6 +115,7 @@ jobs:
           path: |
             **/build/test-results/**/*.xml
             test-report-aggregation/build/reports/tests/test/aggregated-results/**
+            test-report-aggregation/build/reports/jacoco/testCodeCoverageReport/**
           retention-days: 7
 
   docs:

.github/workflows/test-reporting.yml

@@ -49,6 +49,21 @@ jobs:
           run-id: ${{ github.event.workflow_run.id }}
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Publish JaCoCo report as PR comment
+        id: jacoco
+        uses: madrapps/jacoco-report@50d3aff4548aa991e6753342d9ba291084e63848 # 1.7.2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          paths: build-reports-artifacts/**/build/reports/jacoco/testCodeCoverageReport/testCodeCoverageReport.xml
+          update-comment: true
+          title: "# :java_duke: JaCoCo coverage report"
+          min-coverage-overall: 50
+          min-coverage-changed-files: 60
+          comment-type: both
+          pr-number: ${{ needs.get-pr-info.outputs.pr_number}}
+          pass-emoji: ':green_circle:'
+          fail-emoji: ':red_circle:'
+
       - name: Publish JUnit test report (PR comment with collapsed failures)
         uses: mikepenz/action-junit-report@e08919a3b1fb83a78393dfb775a9c37f17d8eea6 # v6.0.1
         env:

buildSrc/src/main/kotlin/docling-java-shared.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
   id("docling-shared")
   `java-library`
+  `jacoco`
 }
 
 repositories {
@@ -36,10 +37,16 @@ testing {
   }
 }
 
+jacoco {
+  toolVersion = libs.findVersion("jacoco").get().toString()
+}
+
 tasks.withType<Test> {
   // Use JUnit Platform for unit tests.
   useJUnitPlatform()
 
+  finalizedBy(tasks.named("jacocoTestReport"))
+
   testLogging {
     events("PASSED", "FAILED", "SKIPPED", "STANDARD_OUT", "STANDARD_ERROR")
     showStandardStreams = true

gradle/libs.versions.toml

@@ -2,6 +2,7 @@
 assertj = "3.27.6"
 jackson2 = "2.20.1"
 jackson3 = "3.0.3"
+jacoco = "0.8.14"
 jreleaser = "1.20.0"
 jspecify = "1.0.0"
 junit = "6.0.1"

test-report-aggregation/build.gradle.kts

@@ -2,18 +2,26 @@ plugins {
   id("docling-shared")
   `java-library`
   `test-report-aggregation`
+  `jacoco-report-aggregation`
 }
 
 repositories {
   mavenCentral()
 }
 
 dependencies {
+  testReportAggregation(project(":docling-core"))
   testReportAggregation(project(":docling-serve-api"))
   testReportAggregation(project(":docling-serve-client"))
   testReportAggregation(project(":docling-testcontainers"))
   testReportAggregation(project(":docling-version-tests"))
 
+  jacocoAggregation(project(":docling-core"))
+  jacocoAggregation(project(":docling-serve-api"))
+  jacocoAggregation(project(":docling-serve-client"))
+  jacocoAggregation(project(":docling-testcontainers"))
+  jacocoAggregation(project(":docling-version-tests"))
+
   api(platform(libs.testcontainers.bom))
   api(platform(libs.jackson.bom))
 
@@ -24,5 +32,8 @@ dependencies {
 }
 
 tasks.named("check") {
-    dependsOn(tasks.named<TestReport>("testAggregateTestReport"))
+    dependsOn(
+      tasks.named<TestReport>("testAggregateTestReport"),
+      tasks.named<JacocoReport>("testCodeCoverageReport")
+    )
 }