Ebada Blog: 2013

Problem

The case is ..

a multi-module project managed by maven
some project has test cases (junit) of others ..project A has the junits and project B,C have the business
you are using sonar and cobertura to get code coverage percentage
Now, you get 0 coverage in project B, C and wrong indicator in project A
you want to use maven as usual and don't use ant :)

The problem and is explained here with a pretty ant/maven solution. I just re-implement the solution using maven-antrun-plugin to be executed in one step.

Download the sample project from

..here

maven-antrun-plugin solution

Download http://sourceforge.net/projects/cobertura/files/cobertura/1.9.4.1/cobertura-1.9.4.1-bin.zip/download and extract to local folder, later we will refer to the lib folder inside the distribution by cobertura.lib.dir

in the sample project, I move cobertura.jar inside the lib folder of the distribution and rename to cobertura-jars then strip all versions

add this profile to the parent project. with cobertura dependency to do the cleanup



<dependencies>
  <dependency>
   <groupid>net.sourceforge.cobertura</groupid>
   <artifactid>cobertura</artifactid>
   <version>1.9.4.1</version>
  </dependency>
 </dependencies>

 <profiles>
  <profile>
   <id>code-coverage</id>
   <build>
    <plugins>
     <plugin>
      <groupid>org.apache.maven.plugins</groupid>
      <artifactid>maven-clean-plugin</artifactid>
      <version>2.4.1</version>
      <configuration>
       <filesets>
        <fileset>
         <directory>.</directory>
         <includes>
          <include>*.ser</include>
         </includes>
        </fileset>
       </filesets>
      </configuration>
     </plugin>
    </plugins>

   </build>
  </profile>
 </profiles>

add this profile to each module ... to do instrumentation except the ear and the parent


<profiles>
   <profile>
    <id>code-coverage</id>
    <build>
     <plugins>
      <plugin>
       <artifactid>maven-antrun-plugin</artifactid>
       <version>1.7</version>
       <dependencies>
        <dependency>
         <groupid>net.sourceforge.cobertura</groupid>
         <artifactid>cobertura</artifactid>
         <version>1.9.4.1</version>
        </dependency>
       </dependencies>
       <executions>
        <execution>
         <phase>compile</phase>
         <configuration>
          <target>
           <taskdef classname="net.sourceforge.cobertura.ant.InstrumentTask" name="cobertura-instrument">
            <classpath path="${cobertura.lib.dir}/cobertura.jar;${cobertura.lib.dir}/log4j.jar;${cobertura.lib.dir}/asm.jar;${cobertura.lib.dir}/asm-tree.jar;${cobertura.lib.dir}/jakarta-oro.jar">
           </classpath></taskdef>
           <cobertura-instrument todir="./target/classes">
            <fileset dir="./target/classes">
             <include name="**/*.class">
            </include></fileset>
           </cobertura-instrument>
          </target>
         </configuration>
         <goals>
          <goal>run</goal>
         </goals>
        </execution>
       </executions>
      </plugin>
     </plugins>
    </build>
   </profile>
  </profiles>

add this profile to the ear project .. to do the merge and generate the report (note the location of source and test code)



<profiles>
  <profile>
   <id>code-coverage</id>
   <build>
    <plugins>

     <plugin>
      <artifactid>maven-antrun-plugin</artifactid>
      <version>1.7</version>
      <dependencies>
       <dependency>
        <groupid>net.sourceforge.cobertura</groupid>
        <artifactid>cobertura</artifactid>
        <version>1.9.4.1</version>
       </dependency>
      </dependencies>
      <executions>
       <execution>
        <id>test</id>
        <phase>test</phase>
        <configuration>
         <target>


          <taskdef classname="net.sourceforge.cobertura.ant.MergeTask" name="cobertura-merge">
           <classpath path="${cobertura.lib.dir}/cobertura.jar;${cobertura.lib.dir}/log4j.jar;${cobertura.lib.dir}/asm.jar;${cobertura.lib.dir}/asm-tree.jar;${cobertura.lib.dir}/jakarta-oro.jar">

          </classpath></taskdef>

          <taskdef classname="net.sourceforge.cobertura.ant.ReportTask" name="cobertura-report">
           <classpath path="${cobertura.lib.dir}/cobertura.jar;${cobertura.lib.dir}/log4j.jar;${cobertura.lib.dir}/asm.jar;${cobertura.lib.dir}/asm-tree.jar;${cobertura.lib.dir}/jakarta-oro.jar">

          </classpath></taskdef>

          <mkdir dir="target/sum">
          <mkdir dir="target/report">

          <cobertura-merge datafile="target/sum/coberturaSum.ser">
           <fileset dir="../.">
            <include name="**/cobertura.ser">
           </include></fileset>
          </cobertura-merge>

          <cobertura-report datafile="target/sum/coberturaSum.ser" destdir="target/report" format="xml">
           <fileset dir="../bus1/src/main/java">
           <fileset dir="../bus1/src/test/java">

           <fileset dir="../bus2/src/main/java">
           <fileset dir="../bus2/src/test/java">


           <fileset dir="../test/src/main/java">
           <fileset dir="../test/src/test/java">


          </fileset></fileset></fileset></fileset></fileset></fileset></cobertura-report>
         </mkdir></mkdir></target>
        </configuration>
        <goals>
         <goal>run</goal>
        </goals>
       </execution>
      </executions>
     </plugin>
    </plugins>
   </build>
  </profile>
 </profiles>

Then execute with the following

clean install org.codehaus.sonar:sonar-maven3-plugin:3.0:sonar -P code-coverage -Dmaven.test.failure.ignore=true -Dsonar.dynamicAnalysis=reuseReports -Dsonar.cobertura.reportPath=../busEar/target/report/coverage.xml -Dcobertura.lib.dir=../parent/cobertura-jars

Ebada Blog

Monday, May 27, 2013

How to use maven with cobertura (code coverage) with sonar in multi-modules

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