Chennai.rb hands-on workshop related to testing in the ruby world using minitest, rspec, cucumber

1. Chennai.rb
Testing Workshop
Mar 5, 2016
Vijay Raghavan Aravamudhan
vraravam@thoughtworks.com
twitter: @avijayr1

2. Why test?
Regression scenarios of stuff already developed
Modularity/Design
OO principles
Uncover different inputs/scenarios
Confidence to deploy to production

3. Types of Testing
1. Unit
2. Integration - 1
3. Integration - 2
4. Headless
5. Contract
6. Functional/UI
a. Smoke
b. Regression

4. Test Pyramid
Attribution: http://martinfowler.com/bliki/TestPyramid.html

5. TDD
Very brief intro...

6. Test Frameworks (in Ruby)
Unit test frameworks
minitest
http://docs.seattlerb.org/minitest/
rspec (also a BDD-style test framework) http://rspec.info/
Functional test frameworks
rspec http://rspec.info/
cucumber https://cucumber.io/
selenium http://docs.seleniumhq.org/

7. Minitest

8. Rspec

9. Stubs vs Mocks
Why do we need these?
Which is better?
Tools:
mocha http://gofreerange.com/mocha/docs/
rspec-mocks https://github.com/rspec/rspec-mocks
More reading: http://martinfowler.com/articles/mocksArentStubs.html

10. http://martinfowler.com/bliki/ObjectMother.html
Tool:
factory_girl https://github.com/thoughtbot/factory_girl_rails
faker https://github.com/stympy/faker
Object Momma

11. Some gists
Using locally-scoped constants during tests: https://gist.github.com/vraravam/877198
Rails generator using rspec and factory_girl:
https://gist.github.com/vraravam/15c2d465d040bcbab234