Emma Plugin

Added by Kohsuke Kawaguchi, last edited by Kohsuke Kawaguchi on Jun 24, 2008  (view change)
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This plugin allows you to capture code coverage report from Emma. Hudson will generate the trend report of coverage.

Usage with Maven2

1.  The Maven2 Emma plugin requires Maven >= 2.0.8 and Surefire >= 2.3.

2.  Add the following to your POM file:

<build>
    ...
    <plugins>
        ...
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>emma-maven-plugin</artifactId>
            <version>1.0-SNAPSHOT</version>
            <inherited>true</inherited>
            <executions>
              <execution>
                <goals>
                  <goal>instrument</goal>
                </goals>
              </execution>
            </executions>
        </plugin>

        ...
    </plugins>
    ...
</build>

<reporting>
    <plugins>
    ...
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>emma-maven-plugin</artifactId>
            <version>1.0-SNAPSHOT</version>
            <inherited>true</inherited>
        </plugin>
    ...
    </plugins>
</reporting>

3.  Make sure the Surefire plugin configuration you have, to run your tests, has the following in it's configuration:

<forkMode>always</forkMode>

 4.  You should add the following to your plugin repositories (either in your POM or in your settings.xml) to locate the Emma plugin: 

<pluginRepositories>
   ...
   <pluginRepository>
      <id>snapshots.repository.codehaus.org</id>
      <url>http://snapshots.repository.codehaus.org</url>
   </pluginRepository>
   ...
</pluginRepositories>

 5.  Run the "site" goal in your build to generate Emma report.

Output

This will create target/site/emma/coverage.xml when you run mvn site, which can then be referenced by the Hudson plugin:

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