This all looks good, but if we go back and write our tests, we're going to see a ton of failures! The reason for this is that when we were running around creating our fixtures for various tests, we never specified any values for password and password_confirmation, which is now a required value for us to be able to save any changeset. We'll start off by modifying test/vocial_web/controllers/user_controller_test.exs. The easiest thing to do to start with is setting a module attribute in VocialWeb.UserControllerTest that sets all of the valid creation parameters for a user now:
@create_params %{ "username" => "test", "email" => "test@test.com", "password" => "test", "password_confirmation" => "test" }
Notice the addition ...
