[Flow] Creating simple UnitTests (RestController)

[Peter R]

Now I changed
$jsonArray = array(
'username' => $user ->getUsername(),
'password' => $user ->getPassword()
);

to 

$jsonArray = array(
'username' => 'foo',
'password' => 'bar'
);

and refactor some errors in the controllers and the response is 200 :)