Using PHPUnit 5.2.3 with Symfony 2.6.11 and php 5.6.18, I'm getting the error
The reserved indicator "@" cannot start a plain scalar
I have the same error with Symfony 2.3.
Instead of using
php phpunit.phar from your project directory, use the one from the vendor
Alternatively, you can use a
phpunit-old.phar that is version 4.8. This version is less strict about quotes in config files.
Source: iget-master comment on this page.