Code coverage in aggregate reports (#7734)

* Drop in code coverage generation.

* Set pom file location.

* Increase job timeout.

* Remove nio dependency for now.

eng/jacoco-test-coverage/pom.xml

@@ -132,11 +132,6 @@
       <artifactId>azure-storage-blob-cryptography</artifactId>
       <version>12.4.0-beta.1</version> <!-- {x-version-update;com.azure:azure-storage-blob-cryptography;current} -->
     </dependency>
-    <dependency>
-      <groupId>com.azure</groupId>
-      <artifactId>azure-storage-blob-nio</artifactId>
-      <version>12.0.0-beta.1</version> <!-- {x-version-update;com.azure:azure-storage-blob-nio;current} -->
-    </dependency>
     <dependency>
       <groupId>com.azure</groupId>
       <artifactId>azure-storage-file-share</artifactId>

eng/pipelines/aggregate-reports.yml

@@ -4,6 +4,7 @@ pr: none
 
 jobs:
   - job: Generate
+    timeoutInMinutes: 180
     variables:
       - template: templates/variables/globals.yml
     pool:
@@ -50,6 +51,41 @@ jobs:
         publishJUnitResults: false
         goals: 'install site:site site:stage'
 
+    - task: Maven@3
+      displayName: 'Generate aggregate code coverage report'
+      inputs:
+        mavenPomFile: 'pom.client.xml'
+        options: '$(DefaultOptions) -Dinclude-non-shipping-modules -Dgpg.skip -Dmaven.javadoc.skip=true -Dcheckstyle.skip=true -Dspotbugs.skip=true'
+        mavenOptions: '-Xmx3072m $(LoggingOptions)'
+        javaHomeOption: 'JDKVersion'
+        jdkVersionOption: '1.11'
+        jdkArchitectureOption: 'x64'
+        publishJUnitResults: false
+        goals: 'verify'
+
+    - task: PublishTestResults@2
+      condition: succeededOrFailed()
+      inputs:
+        mergeTestResults: true
+        testRunTitle: 'Linux on Java 1.11'
+
+    # Azure DevOps only seems to respect the last code coverage result published, so only do this for Linux + Java LTS.
+    # Code coverage reporting is setup only for Track 2 modules.
+    - task: PublishCodeCoverageResults@1
+      inputs:
+        codeCoverageTool: JaCoCo
+        summaryFileLocation: eng/jacoco-test-coverage/target/site/test-coverage/jacoco.xml
+        reportDirectory: eng/jacoco-test-coverage/target/site/test-coverage/
+        failIfCoverageEmpty: true
+
+    # Publish code coverage to an artifact so it can be uploaded to the Maven site.
+    # Do this for track 2 modules only. Code coverage from previous step is only published for Linux + Java LTS.
+    - task: PublishPipelineArtifact@0
+      displayName: 'Publish coverage artifact'
+      inputs:
+        artifactName: coverage
+        targetPath: eng/jacoco-test-coverage/target/site/
+
     - script: |
         git clone https://github.com/JonathanGiles/DependencyChecker.git
         mkdir input && cp eng/DependencyChecker/client_dependencies.json input/dependencies.json