Jenkins test coverage report for JavaScript tests

Question

We run a CI environment with Jenkins and the Project is in ExtJS 3.2. I am not able to find a clear line on how to setup the test coverage for JS code in Jenkins. We write UI tests using selenium and Cucumber. The build file has a UI tests target which is run every time the CI machine runs a build. I am not able to find a plugin that will give me or publish the coverage report of these tests that have been run as a resulting atrifact in Jenkins. Or please help me out if there is some other way to achieve the same thing.

Answer 1

I think you can use JSCover to generate code coverage when using Selenium:

• Start JSCover java web service
• Let Selenium hit the JSCover web-app and start the collector, also see the manual of JSCover about automated tests.
• Run the Selenium tests in a new window or iFrame
• Collect the coverage data and store it somewhere
• Process the data into a nice report (possible with genhtml )

If you start a new browser for each Cucumber scenario/feature, then you need to save the coverage data between each scenario/feature, combine them after all features are done and then process them into a nice report. JSCover supports merging of multiple data sources and creating LCOV reports.