#239: Add test coverage (#272)

* Fixed #239: add jacoco for test coverage
- remove no more needed clover configuration
* #239: add codecov action

.github/workflows/maven.yml

@@ -86,3 +86,11 @@ jobs:
 
       - name: Spotbugs check
         run: mvn --batch-mode --errors verify --file pom.xml '-Pspotbugs'
+
+      - name: JaCoCo report
+        run: mvn --batch-mode --errors jacoco:report --file pom.xml
+
+      - name: Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          files: target/site/jacoco/jacoco.xml

pom.xml

@@ -30,9 +30,7 @@
         <wagon.version>2.2</wagon.version>
         <gmaven.provider.selection>2.0</gmaven.provider.selection>
         <groovy.version>3.0.7</groovy.version>
-
-        <clover.version>3.3.0</clover.version>
-        <clover.license>/private/reficio/clover.license</clover.license>
+        <jacoco.version>0.8.7</jacoco.version>
     </properties>
 
     <licenses>
@@ -362,6 +360,9 @@
                 <executions>
                     <execution>
                         <goals>
+                            <goal>addSources</goal> <!-- important for jacoco that it recognizes to measure the coverage of classes in src/main/groovy-->
+                            <goal>addTestSources</goal> <!-- important for jacoco that it recognizes to use tests in src/test/groovy for coverage measuring-->
+                            <goal>compile</goal>
                             <goal>generateStubs</goal>
                             <goal>compile</goal>
                             <goal>generateTestStubs</goal>
@@ -401,6 +402,18 @@
                     </excludes>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <version>${jacoco.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>prepare-agent</goal> <!-- add javaagent to surefire's test run  -->
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>com.mycila</groupId>
                 <artifactId>license-maven-plugin</artifactId>
@@ -419,7 +432,6 @@
                     <excludes>
                         <exclude>target/**</exclude>
                         <exclude>**/resources/**</exclude>
-                        <exclude>.clover/**</exclude>
                         <exclude>.dependabot/**</exclude>
                     </excludes>
                     <useDefaultExcludes>true</useDefaultExcludes>
@@ -602,32 +614,6 @@
             </build>
         </profile>
 
-        <profile>
-            <id>clover</id>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>com.atlassian.maven.plugins</groupId>
-                        <artifactId>maven-clover2-plugin</artifactId>
-                        <version>${clover.version}</version>
-                        <executions>
-                            <execution>
-                                <id>clover</id>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <generateHtml>true</generateHtml>
-                            <generateXml>true</generateXml>
-                            <excludes>
-                                <exclude>**/Logger.java</exclude>
-                            </excludes>
-                            <licenseLocation>${clover.license}</licenseLocation>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-
         <profile>
             <id>release</id>
             <build>
@@ -683,6 +669,11 @@
 
         <profile>
             <id>it</id>
+            <properties>
+                <!-- Enable recording of coverage during execution of maven-invoker-plugin -->
+                <jacoco.propertyName>invoker.mavenOpts</jacoco.propertyName>
+                <jacoco.includes>org.reficio.p2.*</jacoco.includes>
+            </properties>
             <build>
                 <plugins>
                     <plugin>
@@ -711,6 +702,9 @@
                             <localRepositoryPath>${project.build.directory}/it-repo</localRepositoryPath>
                             <preBuildHookScript>setup.groovy</preBuildHookScript>
                             <postBuildHookScript>validate.groovy</postBuildHookScript>
+                            <extraArtifacts>
+                                <extraArtifact>org.jacoco:org.jacoco.agent:${jacoco.version}:jar:runtime</extraArtifact>
+                            </extraArtifacts>
                             <scriptVariables>
                                 <originalLocalRepository>${settings.localRepository}</originalLocalRepository>
                             </scriptVariables>
@@ -807,18 +801,6 @@
                     </reportSet>
                 </reportSets>
             </plugin>
-            <plugin>
-                <groupId>com.atlassian.maven.plugins</groupId>
-                <artifactId>maven-clover2-plugin</artifactId>
-                <configuration>
-                    <generateHtml>true</generateHtml>
-                    <generateXml>true</generateXml>
-                    <excludes>
-                        <exclude>**/Logger.java</exclude>
-                    </excludes>
-                    <licenseLocation>${clover.license}</licenseLocation>
-                </configuration>
-            </plugin>
         </plugins>
     </reporting>