Running code coverage with Cobertura and Jacoco
I have a bit of a problem getting code coverage reports for both Integration Tests and Unit Tests in Sonar for a Maven Plugin project (which uses invoker plugin for the integration tests).
I can't use the default Jacoco coverage tool for the unit tests, as these use Powermock, which results in 0% coverage for classes using that. On the other hand, I can't find a reliable way to get results for the Groovy-based integration tests without using Jacoco.
So what I need is for Cobertura to produce a Unit Test report, Jacoco to produce an Integration Test report, and for Sonar to be able to read the lot.
I tried using the example here https://github.com/Godin/sonar-experiments/tree/master/jacoco-examples/maven-invoker-plugin-example but eliminating the executions bound to the test phase, but I then get a unit test coverage of '-' in Sonar. I think the reason for this is that to get this method to work, I need to speicify Jacoco as the core coverage tool for Sonar.
Any ideas on a way round this? My pom.xml follows:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.acme.myproj.plugins</groupId>
<artifactId>slice2java-maven-plugin</artifactId>
<version>0.1-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<name>Slice2Java Maven Plugin</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<sonar.exclusions>**/generated*/*.java</sonar.exclusions>
<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<sonar.jacoco.itReportPath>${project.basedir}/target/jacoco-it.exec</sonar.jacoco.itReportPath>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-utils</artifactId>
<version>3.0.8</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.9.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-core</artifactId>
<version>1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>1.5</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.2</version>
<configuration>
<goalPrefix>slice2java</goalPrefix>
<skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
</configuration>
<executions>
<execution>
<id>mojo-descriptor</id>
<goals>
<goal>descriptor</goal>
</goals>
</execution>
<execution>
<id>help-goal</id>
<goals>
<goal>helpmojo</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>run-its</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-invoker-plugin</artifactId>
<version>1.8</version>
<configuration>
<debug>true</debug>
<cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>
<pomIncludes>
<pomInclude>*/pom.xml</pomInclude>
</pomIncludes>
<postBuildHookScript>verify</postBuildHookScript>
<localRepositoryPath>${project.build.directory}/local-repo</localRepositoryPath>
<settingsFile>src/it/settings.xml</settingsFile>
<goals>
<goal>clean</goal>
<goal>test-compile</goal>
</goals>
</configuration>
<executions>
<execution>
<id>integration-test</id>
<goals>
<goal>install</goal>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.5.3.201107060350</version>
<configuration>
<includes>com.acme.*</includes>
</configuration>
<executions>
<execution>
<id>pre-integration-test</id>
<phase>pre-integration-test</phase>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration>
<destFile>${project.build.directory}/jacoco-it.exec</destFile>
<propertyName>invoker.mavenOpts</propertyName>
</configuration>
</execution>
<execution>
<id>post-integration-test</id>
<phase>post-integration-test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>${project.build.directory}/jacoco-it.exec</dataFile>
<outputDirectory>${project.reporting.outputDirectory}/jacoco-it</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
Since you've configure the sonar as
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<sonar.jacoco.itReportPath>
${project.basedir}/target/jacoco-t.exec
</sonar.jacoco.itReportPath>
This means you are telling sonar to reuse the existing report from sonar.jacoco.itReportPath . If there is no existing report, there is no any coverage.
In may case, I use the cobertura and reuse its report from maven site generation. as the following configuration properties: -
<sonar.java.coveragePlugin>cobertura</sonar.java.coveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<sonar.surefire.reportsPath>
${project.build.directory}/surefire-reports
</sonar.surefire.reportsPath>
<sonar.cobertura.reportPath>
${project.build.directory}/site/cobertura/coverage.xml
</sonar.cobertura.reportPath>
I can get the reuse by using the following command :-
mvn clean install site sonar:sonar
I can reproduce your issue by using the following command :-
mvn clean install sonar:sonar
The coverage is 0%. Since there is no existing report at the report path .
Then please make sure that there is a report named "jacoco-t.exec" as specified before executing the sonar.
Since I'm not familiar with the JaCoCo and do not know which maven phase that produces thae report file. I would suggest to execute the command like the following:-
mvn clean test sonar:sonar
or
mvn clean install sonar:sonar
or the same as mine
mvn clean install site sonar:sonar
I hope this may help.
Regards,
Charlee Ch.
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