How to append existing coverage report in new coverage report

[navee...@gmail.com]

How to append existing coverage report in new coverage report

Hi All,

I am working on application, where after every 2 hours we need to update the build means need to replace ROOT.war in tomcat/webapps.

Is there any way append existing report in new coverage report.

Changes in POM.xml:

<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.9</version>
<configuration>
<skip>${maven.test.skip}</skip>
<!--<output>file</output> -->
<append>true</append>
</configuration>
<executions>
<execution>
<id>jacoco-initialize</id>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration>
<!-- Sets the path to the file which contains the execution data. -->
<destFile>${project.build.directory}/target/jacoco.exec</destFile>
</configuration>
</execution>
<execution>
<id>jacoco-site</id>
<phase>verify</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<!-- Sets the path to the file which contains the execution data. -->
<destFile>${project.build.directory}/target/jacoco.exec</destFile>
</configuration>
</execution>
</executions>

</plugin>

Changes in Catlina.sh: set JAVA_OPTS=%JAVA_OPTS% %LOGGING_MANAGER% -javaagent:D:\jacoco-0.7.9\lib\jacocoagent.jar=destfile=D:\jacoco\jacoco.exec,append=true,includes=*,output=file

Please suggest if there is any way to do that

[Marc R. Hoffmann]

Hi,

it is not possible to merge already generated coverage reports.

But you can (re-)create a coverage report based on execution data from multiple runs. There are multiple ways to do this:

• Merge multiple exec files into a single one (see merge goal)
• Create the report with multiple exec files as input
• Let the JaCoCo agent append exec data to a single file (this is how you already configured your agent)

However it is not possible to merge execution data when class files have been changed between the individual test runs.

Regards,
-marc

[Naveen Gupta]

Hi Marc,

Thanks for valauble advise, please review below mentioned pom.xml

</executions>undefined</plugin>undefined<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-surefire-plugin</artifactId>

<version>2.12.2</version>

<configuration>

                <includes>

                                <include>**/${testGroup}/*Test.java</include>

                </includes>

                <systemPropertyVariables>

                                <jacoco-agent.destfile>web/target/jacoco.exec</jacoco-agent.destfile>

                </systemPropertyVariables>

                <argLine>-Xms256m -Xmx2048m -XX:MaxPermSize=2048m</argLine>

</configuration>

</plugin>

 

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.2</version>

<configuration>

                <source>${java.version}</source>

                <target>${java.version}</target>

</configuration>

</plugin>

This is actually works for me.

Regards

Naveen

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[Marc R. Hoffmann]

Good to hear! Note that append=true is the default anyways.

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