Install PHPUnit on Windows

First, if not already done, install PHP and PEAR on windows.

Once pear is set up type the following in a command prompt:

pear install -a -f phpunit/PHPUnit

This will install all dependencies (-a) and force the install (-f)

If you get the error:

No releases available for package "pear.phpunit.de/PHPUnit"
install failed

Enter the following to clear the cache.

pear clear-cache

And once again enter the install command:

pear install -a -f phpunit/PHPUnit