I have just copied the commands I tried on my terminal for someone else in search for the same. Hope it is useful.
Basic commands:
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo apt-get install php-pear
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo pear channel-discover pear.phpunit.de
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo pear install phpunit/PHPUnit
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo pear channel-update pear.php.net
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo pear upgrade-all
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo pear channel-update pear.phpunit.de
Optional:
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ sudo apt-get install php5-xdebug
Check :
saffrongeek@saffrongeek-laptop:~/Projects/sao2crmdr$ phpunit –version
