*Add phpunit

Author: pcfreak30

Dockerfile

@@ -4,6 +4,8 @@ RUN apt-get update && apt-get install -y git wget subversion cvs bzr
 
 RUN wget https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar -O /usr/local/bin/wp && chmod +x /usr/local/bin/wp
 
+RUN wget https://phar.phpunit.de/phpunit-5.7.phar -O /usr/local/bin/phpunit && chmod +x /usr/local/bin/phpunit
+
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
 
 RUN pecl install xdebug