Increase coverage metrics

Before:
![screen shot 2014-09-15 at 00 37 06](https://cloud.githubusercontent.com/assets/144476/4265944/1489945c-3c68-11e4-92d8-0274df9c453f.png)

After:
![screen shot 2014-09-15 at 00 36 23](https://cloud.githubusercontent.com/assets/144476/4265945/152820e0-3c68-11e4-918c-f0654d376559.png)

https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertInternalType

Also does not test it is the correct array?