Hi all,
Long time lurker, first-time question. :)
I've been going back and forth trying to decide how much detail is
enough in my controller specs. I feel that if I put too much detail in
them, then my tests become very brittle and do not allow me to
refactor my code without significant effort on the tests. After all, I
have tests so that I can refactor, right?
So, let me show two ways that Ive done controller tests and gain
insight from my enlightened colleagues on this list to help me make a
decision about which way to go.
The first is very general coverage that describes the outcome of the
behavior:
describe FeedsController, 'get /feeds/' do
before(:each) do
@request.env["HTTP_ACCEPT"] = "application/xml"
Model.should_receive(:find).with(any_args).and_return
mock_model(Model)
end
it "should return success" do
get '/'
response.should be_success
end
it "should return 405 (Method Not Allowed) if HTTP_ACCEPT is text/
html" do
@request.env["HTTP_ACCEPT"] = "text/html"
get '/'
response.response_code.should == 405
end
end
The second one is much more detailed:
describe FeedsController, 'get /feeds/' do
before(:each) do
@model = mock_model(Model)
@request.env["HTTP_ACCEPT"] = "application/xml"
Model.should_receive(:find).with(any_args).and_return @model
end
it "should assign to the model" do
get '/'
assigns[:model].should == model
end
it "should render feed template" do
get '/'
response.should render_template('feeds/model_feed.xml.erb')
end
end
Obviously, both are very basic in their implementation, but still, I
ask... If you were writing the specs, which way would you write them?
Thanks for any guidance.
--
Matt Berther
http://www.mattberther.com
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