Error:

windows phpunit could not open input file . pear phpunit2 textui testrunner.php

To install PHP et al under windows, I used XAMPP. To fix this error, I had to edit phpunit.bat* and update the paths to the php.exe and to the PEAR directory.

Also, If you want to use it through cygwin (inside Aptana's cli interface) then you might have to update the phpunit file as well, located in the same directory as phpunit.bat

It should be under your php directory at the same level of php.exe. If you used XAMPP to install, it would be something like this:

C:\DEV\xampp\php\phpunit.bat

The installed version of phpunit that ships with XAMPP is somehow outdated. The upgrade process can be tricky. Open a Windows's CMD promt as admin. If you type pear help and does not work, you might have to cd to your php root, i.e cd C:\DEV\xampp\php\

Now, update channels:

pear channel-discover pear.phpunit.de
pear channel-discover components.ez.no
pear channel-discover pear.symfony-project.com

Next, update pear:

pear upgrade pear

If that throws an error similar to:

ERROR: failed to mkdir C:\php\pear\docs\Archive_Tar\docs ERROR: unable to unpack C:\Users\Home539\AppData\Local\Temp\pear\download\Structures_Graph-1.0.4.tgz ERROR: failed to mkdir C:\php\pear\docs\PEAR

You might need to mkdir c:\php and then pear upgrade pear again.

Now, to update PHPUnit:

pear install --alldeps phpunit/PHPUnit

If you get an error similar to this:

Fatal error: Call to undefined method PHP_CodeCoverage_Filter::getInstance()

You might need to check where did the updated PHPUnit package is and make sure your phpunit.bat and phpunit files point to that directory. Default XAMPP's Pear install seems to have a PHPUnit and a PHPUnit2 directories, point your paths to the updated one.

More info: