How to use EMMA code coverage in android
I'm new to EMMA, I don't know how to use this for android system. Can anyone please give a sample for using this with android. Thanks a lot.
Answer
I've only been able to get emma working using ant. If you've got an ant build set up then you can run:
ant emma debug install
ant emma debug install test
The first is run in your project directory, the second from your test directory. See the docs for more details: http://developer.android.com/guide/developing/building/building-cmdline.html
If you don't have an ant build.xml file already you can see how to generate one from your current project here: http://developer.android.com/guide/developing/projects/projects-cmdline.html
The sad part is this will only work on the emulator or a rooted device. This is because the coverage file gets generated in a folder that requires root. I also needed to modify the android-sdk/tools/ant/build.xml file to copy the file on my rooted device elsewhere so I could pull it off. I modified the emma block of the xml to be the following:
<if condition="${emma.enabled}">
<then>
<echo>WARNING: Code Coverage is currently only supported on the emulator and rooted devices.</echo>
<run-tests-helper emma.enabled="true">
<extra-instrument-args>
<arg value="-e" />
<arg value="coverageFile" />
<arg value="${emma.dump.file}" />
</extra-instrument-args>
</run-tests-helper>
<echo>Copying coverage to readable directory...</echo>
<exec executable="${adb}" failonerror="true">
<arg line="${adb.device.arg}" />
<arg value="shell" />
<arg value="echo cp ${emma.dump.file} /sdcard/coverage.ec | su" />
</exec>
<echo>Downloading coverage file into project directory...</echo>
<exec executable="${adb}" failonerror="true">
<arg line="${adb.device.arg}" />
<arg value="pull" />
<arg value="/sdcard/coverage.ec" />
<arg value="coverage.ec" />
</exec>
<echo>Extracting coverage report...</echo>
<emma>
<report sourcepath="${tested.project.absolute.dir}/${source.dir}"
verbosity="${verbosity}">
<!-- TODO: report.dir or something like should be introduced if necessary -->
<infileset dir=".">
<include name="coverage.ec" />
<include name="coverage.em" />
</infileset>
<!-- TODO: reports in other, indicated by user formats -->
<html outfile="coverage.html" />
</report>
</emma>
<echo>Cleaning up temporary files...</echo>
<delete file="coverage.ec" />
<delete file="coverage.em" />
<echo>Saving the report file in ${basedir}/coverage/coverage.html</echo>
</then>
<else>
<run-tests-helper />
</else>
</if>