On 6/12/09 1:43 AM, Matt Wynne wrote back to Lee who said:
>> I am wondering if there is a way to avoid having to specify params in
>> each and every example by adding some code to a before[:each] block?
> There are several ways of doing this. The pattern I tend to us is to
> create a method that does the post, and contains default parameters
> which you can override if you want to.
For contrast, I'll describe the method I prefer. The purpose of this
approach is to simplify and homogenize the interface of the "do it"
routine. By localizing the params in @instance variables, the raw
do_action() is a) easily called by you or the shared example group, b)
consistently named - the shared example doesn't have to care what action
is being done, and c) overridden with parameters at any level of nested
describe()s as you need.
describe "something" do
before :each do
@params = { :default => 'values' }
end
sub do_action
post :create, @params
end
it_should_behave_like "some shared example group"
# shared example calls back to our do_action, by convention
describe "something else" do
before do
@params[:special_for_something_else] = 'setting'
# other setup
end
it "whatever" do
@params[:special_for_whatever] = 'value'
do_action
end
end
end
Randy
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