RSpec has great feature — mock objects (mocks). In a few words: mock object imitates behavior of the object, which used by the tested methods. And simple example immediately:
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| describe UserHelper
it 'should generate correct link to user profile in user_link' do
@user = mock('User')
@user.stub!(:id, 10)
@user.stub!(:new_record?, false)
@user.stub!(:preferred_name, 'Dmytro S.')
@user.stub!(:full_name, 'Dmytro Shteflyuk')
user_link(@user).should == link_to('Dmytro S.', user_url(:id => 10), :title => 'Dmytro Shteflyuk')
end
end |
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Unfortunately, RSpec does not provide helpers for testing mailers like TestUnit. But it is easy to add them to your application, and here you could find code snippet for testing mailers.
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RSpec provides a framework for writing what can be called executable specifications of program behavior. In this short post I want to explain why I use this framework in place of classic TestUnit library.
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Every time I’m creating fixtures for Rails application I’m being angry because any more or less considerable project needs tons of them. Most complicated thing is to track all relationships, validations, and to keep fixtures up to date. A few days ago Yurii Rashkovskii has released small utility — Fixturease. What if I would tell you that now you can create your fixtures using your models?
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