[FEATURE] Add functional tests

[galoppi]

No description provided.

[cedricziel]

Hi there - Thank you for your contribution!

Please amend the the message of the second commit to have the first word uppercase. Otherwise Travis would decline it in the CGL - checker.

[NamelessCoder]

Don't merge - I will take care of this one manually. It has relations to our fluidtypo3-development package and the manipulation of the composer class loader should instead be depended upon in the unit test bootstrapper.

[galoppi]

Yes, I understand.
I think we need another test script in fluidtypo3-development for the functional tests as we need a fully functional typo3 environment and a database with read/write access.
And maybe another approach for the autoloading.
To run the tests we need a script like this:
typo3DatabaseName="dbname" typo3DatabaseUsername="dbuser" typo3DatabasePassword="dbpass" typo3DatabaseHost="dbhost" TYPO3_PATH_WEB="path/to/docroot" ./vendor/bin/phpunit -v --strict -c phpunit-functionaltests.xml.dist --process-isolation --bootstrap vendor/typo3/cms/typo3/sysext/core/Build/FunctionalTestsBootstrap.php Tests/Functional/Service/ContentServiceTest.php

Shall I close this pull request?

[NamelessCoder]

Please leave open for now - I'll use this and the comments (thanks!) to create functional test runners in fluidtypo3-development. It will be nice to be able to re-run this PR test for that. I may ask for a rebase at some point ;)