+1

In f927ccd: Refs #5031 Now getting PHPUnit from composer/packagist. This will make like better for core team devs
Updating readme with instructions.
I also hope this will solve the Autoloader issue on the UI build: https://travis-ci.org/piwik/piwik-ui-tests

In cf6d408: Adding PHPUnit to include path, maybe this helps? refs #5031
Error was https://travis-ci.org/piwik/piwik/jobs/24163923

In 4d46007: PHPUnit doc says to add vendor/bin to include path refs #5031

In d29e037: Trying with PHPUnit 4 to match the one used by travis refs #5031

In a215035: Refs #5031 The build is green: https://travis-ci.org/piwik/piwik we're running latest PHPUnit using composer.

Instructions to install PHPUnit, run php composer.phar update in the Piwik root directory.

             Add the PHPUnit binary path to the your PATH environment variable. For example on Linux:
             Edit `.bashrc` in your home directory and add the following line:

                 export PATH=/path/to/dir:$PATH

             You will need to source your `.bashrc` or logout/login (or restart the terminal) for the changes to take effect.
             To source your `.bashrc`, in your home directory simply type

                 $ source .bashrc

             See [doc](PHPUnit)(http://www.phpunit.de/manual/current/en/installation.html).

Done

Should we maybe adjust the RunTests console to use vendor/phpunit/phpunit/phpunit as executable? that would make it possible to use it without adjusting the PATH I guess.

+1 for making the console command work without PATH update!

In e91bfbc: Refs #5031 use the phpunit binary from composer