When you want to create codecoverage report with phpunit, you need to have XDebug installed otherwise you get just error "No code coverage driver is available". I successfully installed it on Windows but I had lot of issues installing it on MacOS.
MacOS has php installed with xcode, but I needed to use newer version I am already using with XAMPP. So I just created a link to XAMPP version:
sudo ln /Applications/XAMPP/bin/php /usr/local/bin/php
In XDebug readme is, that you need to use phpize. After I linked that one, it had another problem - "fatal error: 'php.h' file not found". To solve also this problem, you have to link php-config either.
sudo ln /Applications/XAMPP/bin/phpize /usr/local/bin/phpize sudo ln /Applications/XAMPP/bin/php-config /usr/local/bin/php-config
You need to clone the source code, so that you are able to build it:
git clone git://github.com/xdebug/xdebug.git
phpize make clean make make install
The last step is to add zend_extension="xdebug.so" in the end of php.ini file. If you do not know where this file is located, just run