Start playing around with test coverage

.gitlab-ci.yml

@@ -204,12 +204,14 @@ test-benchmarks:
   extends: .benchmarks
   needs:
     - build-benchmarks
-  script: ./gradlew test --continue
+  script: ./gradlew test jacocoTestReport --continue
   artifacts:
     when: always
     reports:
       junit:
         - "theodolite-benchmarks/**/build/test-results/test/TEST-*.xml"
+    paths:
+      - build/jacoco/jacoco.xml
 
 checkstyle-benchmarks:
   stage: check

theodolite-benchmarks/buildSrc/src/main/groovy/theodolite.java-conventions.gradle

 plugins {
   id 'java'
+  id 'jacoco'
   id 'checkstyle'
   id 'pmd'
 
@@ -12,6 +13,18 @@ java {
   targetCompatibility = JavaVersion.VERSION_11
 }
 
+test {
+  finalizedBy jacocoTestReport // report is always generated after tests run
+}
+
+jacocoTestReport {
+  dependsOn test // tests are required to run before generating the report
+  reports {
+    xml.enabled true
+    html.enabled true
+  }
+}
+
 // Per default XML reports for SpotBugs are generated
 // Include this to generate HTML reports
 tasks.withType(com.github.spotbugs.snom.SpotBugsTask) {