[wtp-dev] Want to know what your unit test are really doing? Try this...

[Valentin Baciu <vbaciu@xxxxxxxxxx>]

For a little while I was looking for
a good line level code coverage tool. It had to integrate seamlessly with
the JDT and JUnit as well as do its work without an instrumentation pass.
A few months back when I last looked TPTP www.eclipse.org/tptp did provide
a method level code coverage feature. While better than nothing, it was
not really precise enough for methods with more than one code path. So
I decided to wait.

Recently I had time to check again and
voila: TPTP provides a decent line level code coverage feature as a technical
preview. I found that the feature is very lightweight and easy to install.
The level of integration with the JDT is pretty good.

To get the LLC feature go here: http://www.eclipse.org/downloads/download.php?file=/tptp/4.2.1/TPTP-4.2.1-200609071820D/org.eclipse.tptp.platform.coverage.core-TPTP-4.2.1.zip.
In a strange but good way it seems it does not require the entire TPTP
platform. Also, spend a few minutes and watch this: http://www.eclipse.org/tptp/home/documents/tutorials/viewlets/v4.2/LLC/LineCoverage_viewlet_swf.html

Here's a sample report produced on the
component I'm primarily working on - the WSDL EMF model. As my component
lead said when he saw it, it seems we've got some holes here and there...
:-)

Here's how the decorated package explorer
looks like (you can turn off these decorations):

And here's a sample annotated Java editor
(the various annotations can be turned off)

I hope you find this as helpful as I
did.

Regards,
Valentin