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Damir
December 29, 2015
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52
TDD Talk Slides
A short overview of various test double helpers provided by RSpec
Damir
December 29, 2015
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Transcript
Gentle Isolation
double A simple object that stands in place of any
other object. (Think of stunt doubles)
instance_double A simple object that stands in place of an
object. It verifies that the described double matches the object it stands for. (Verifying double)
mock_model A test double object expanded with ActiveModel and ActiveRecord
API. Includes real functionality of AM/AR methods. Good for testing interactions with AR/AM objects.
stub_model The real AR/AM object, with some mechanisms stubbed. Builds
on top of the existing models, uses the real app code. Good for state-based tests. WARNING: In some cases can result in the actual DB calls.
build_stubbed The real AR object that's build with FactoryGirl. If
FactoryGirl defines dependencies they will be created. Only persistence mechanisms are stubbed.