Mike Purcell has a quick new post to his blog showing how you can run PHPUnit on one specific test using handy grouping functionality already built into the tool.

The other day I was debugging an error in one of my unit tests, and found it hard to track down because when I ran PHPUnit, it ran all the tests contained in the file where my problem unit test was located. After some Googling and reading the PHPUnit Api Docs, I found that you can specify a test, among other tests, by adding a comment with the @group annotation.

Using this "@group" annotation tells PHPUnit to combine these tests and allows you you specify a "--group" setting on the command line to only run those. He includes some sample code showing how it can be used. This can be very useful for combining results for certain kinds of tests (say, all related to bugfixes) without having to run everything all over again.