Installing PHPUnit on OS X using MAMP via PEAR

Here is a quick and solid way to add PHPUnit to your MAMP Setup

Important:

The path to your PHP and PEAR if you are using MAMP is something similar to this

PHP:

/Applications/MAMP/bin/php/php5.xxx/bin/php

PEAR:

/Applications/MAMP/bin/php/php5.xxx/bin/pear

notice the php5.xxx this will depend on the version of php you are using, in my case is php5.3.6 so have that in mind if you are planning on copy pasting this guide

Instructions:

1. Turn on PEAR auto discover
   /Applications/MAMP/bin/php/php5.3.6/bin/pear config-set auto_discover 1

   As Alex from the comments states you might need to update pear
   cd /Applications/MAMP/bin/php/php5.3.6/bin
sudo ./pear upgrade pear

2. Install PHPUnit from pear.phpunit.de
   /Applications/MAMP/bin/php/php5.3.6/bin/pear install pear.phpunit.de/PHPUnitThis will install PHPUnit under
   /Applications/MAMP/bin/php/php5.3.6/bin/phpunit
3. If done right the phpunit file should already contain reference to the MAMP’s php you are choosing to use, now to have phpunit available on your system as a command you can do something similar to this:
   sudo ln -s /Applications/MAMP/bin/php/php5.3.6/bin/phpunit /usr/local/bin/phpunit

I always try to keep my binaries and executables under /usr/local/bin but this is my choice you can try some other directory as long as you have it exposed on via your EXPORTS