Errors on tests

[nelsonsar]

When you run Onion test you get, for example:
Undefined property: tests\Onion\Dependency\DependencyResolverTest::$logger

Because some tests use $logger as a static variable but it is not. So we have two approaches:

1. Use mocked instances of logger;
2. Creating an instance of logger to each test;

[c9s]

For that, we can get the logger from Onion\Application::getInstance()->getLogger() for now. ;-)

[nelsonsar]

Do you have any flow to pull requests? Because I really wanna contribute with you :-)

[c9s]

Nop, you simply run unit tests, if tests passes, the pull request should be fine. ;-)