Simon Brown's Blog

First impressions of Clover

I've recently started using Clover on my open source projects and it's an amazing product. I've not used the Ant tasks yet, but I am using the integration with IntelliJ. Wow, this is probably one of the most impressive products since IntelliJ itself!

If you've not seen Clover before, it's basically a code coverage tool that will help you identify what sort of coverage you are achieving during execution of the code. This means that you can see how much of your code is called when your program is being run, and also how much of your code is run during the execution of your unit tests. In addition to this, it can tell you how many times each particular line/block has been called and also how many times conditionals have been evaluated to true/false.

I'll write a full review when I've had some more time with the tool, but the IntelliJ integration makes using Clover a breeze. Once you've installed the plugin by dropping a JAR file into the IntelliJ plugins directory you get some additional toolbar buttons. Essentially, running Clover is then a simple matter of rebuilding your code with Clover, running your code and then returning to IntelliJ to see the graphical representation of the coverage. I think from the initial download to my first coverage results took about 15 minutes. This really is a great tool and, as I said, I'll write a full review sometime soon.

Comments

• Also check out jcoverage
  Although it doesn't have an IDEA plugin (there's an Eclipse one) jcoverage is pretty nice, and it's open source (GPL). Read about it at http://www.jcoverage.com.

  Posted by: kdenehy on November 07, 2003 at 08:06 AM

• Koalog Code Coverage
  While it does not have yet any IDE plugins, Koalog Code Coverage offers many original features such as:

  remote coverage (ability to compute the coverage of a remote JVM),
  sessions merging (merge of different coverage results),
  custom reports (ability to design custom reports),
  powerful command line interface (in addition of course to Ant integration).
  

  KCC does not instrument the code (hence, it can be directly used on jar files), nor uses any OS specific technology but relies on JPDA.

  --
  Yan Georget, PhD

  Posted by: yangeorget on March 09, 2004 at 06:26 AM

• how to cover the code for web appliaction by using Clover?

  Posted by: vvnagasudheer on August 03, 2006 at 05:03 AM

• how to cover the code for web appliaction by using Clover?
  contact me vvnagasudheer@gmail.com

  Posted by: vvnagasudheer on August 03, 2006 at 05:04 AM

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