Strange class loading in integration tests

So I have a working site and have a good amount of experience with Rails
from building it. I recently decided it was time to start writing
tests. Yeah, thanks, I know I should have done it earlier.

I’m jumping straight into integration tests because that’s what I need
right now. I’ll write other tests later.

I am really struggling with getting a simple test working. There seem
to be strange class loading issues, a subject that I’m not an expert in.

First it took me a while to figure out I had to have this line at the
head of my tests:

require “#{File.dirname(FILE)}/…/test_helper”

I’m passed that now though. Some tests work. For instance, I can do


assert_redirected_to “

assert_response :success

But when I uncomment that assert_redirected_to line, I get an exception
(with abbreviated stack trace):

NameError: uninitialized constant ApplicationController



I also get an exception when I try to load one of my models, e.g.

This one is even stranger as my exception looks like this:

NoMethodError: undefined method `foobar’ for #User:0x362a324

Where foobar is a method in my User class which is always used in my
application (it’s a low level permissions thing) and is most definitely

What is going on here? It’s driving me nuts.