[rspec-users] dynamic specs

David Green justnothing at tiscali.co.uk
Fri Jun 15 07:34:27 EDT 2007

I'd like to test that my model attributes are properly protected against mass
assignment, something like:

it "should NOT update :balance on mass assignment" do
  @account.attributes = {:balance => 1000}
  @account.balance.should_not == 1000

instead of doing each attribute manually however, I'd like to automate it so
I can pass a list of attributes which CAN be assigned that way and let the
code figure out what should be protected. Here's what I have so far :


the problem is, I can't figure out how to make "protected attributes"
reusable. I'd like to be able to pass it a different class name and list of
allowed attributes at run time, but AFAIK, shared behaviours can't be sent
parameters. I tried using instance variables, which I initialize in 'mass
assignments' before() method, but they're only available to the actual spec
(lines 6-8), not the code that generates the dynamic specs (lines 3-9)

can anyone think how I might get round this? 


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