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Rspec Tips
- 1. RSpec Tips November12, 2012
- 2. RSpec Ruby testingframework Friendlier alternative to Test::Unit.
- 3. RSpec Ruby testingframework Friendlier alternative to Test::Unit. Behavior-driven development TDD-based
- 4. RSpec Ruby testingframework Friendlier alternative to Test::Unit. Behavior-driven development TDD-based Syntax resembles natural language describe.. it..
- 5. RSpec Ruby testingframework Friendlier alternative to Test::Unit. Behavior-driven development TDD-based Syntax resembles natural language describe.. it.. Good as documentation Where BDD shines.
- 6. Test Runner Databaseinitialization $ rake db:create RAILS_ENV=test $ rake db:reset RAILS_ENV=test Running the test suite $ rspec spec Configuration .rspec spec/spec_helper.rb
- 7. Test Runner (cont.) Example: truncate databases only on startup Viewing code coverage coverage/index.html Auto-testing with Guard $ bundle exec guard Spork $ spork
- 8. Test Structure Example Groups describe context
- 9. Test Structure Example Groups describe context Examples it
- 10. Test Structure Example Groups describe context Examples it Assertions should should_not
- 11. Test Structure Example Groups describe context Examples it Assertions should should_not BDD w/ Pending Tests pending
- 12. Test Structure (cont.) Matchers be_nil, be_true, be_false == vs eql have_key change should_receive ... etc
- 13. Test Structure (cont.) Matchers be_nil, be_true, be_false == vs eql have_key change should_receive ... etc Custom Matchers (shoulda-matchers) should allow_mass_assignment_of :some_attribute should have_many(:association).dependent(:destroy) should validate_presence_of :first_name
- 14. Hooks Callbacks usedto setup/teardown tests
- 15. Hooks Callbacks usedto setup/teardown tests Kinds?
- 16. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite
- 17. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all
- 18. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each
- 19. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each
- 20. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each
- 21. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all
- 22. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all after :suite
- 23. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all after :suite RSpec’s default behavior
- 24. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all after :suite RSpec’s default behavior before :suite = Database truncation
- 25. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all after :suite RSpec’s default behavior before :suite = Database truncation after :each = Transaction rollback config.use_transactional_fixtures = true
- 26. Hooks Callbacks usedto setup/teardown tests Kinds? before :suite before :all before :each around :each after :each after :all after :suite RSpec’s default behavior before :suite = Database truncation after :each = Transaction rollback config.use_transactional_fixtures = true The problem with using multiple databases
- 27. Subject The mainobject of concern inside an example group Implicit vs. Explicit
- 28. Subject (cont.) should without a receiver its shortcut Concise + Consistent = DRY (specs as documentation) ”One expectation” rule Example: Project template before & after
- 29. Unit Tests Checking piece-by-piece
- 30. Unit Tests Checking piece-by-piece Isolate
- 31. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation)
- 32. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation) Remove dependencies (openfire)
- 33. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation) Remove dependencies (openfire) Narrow down responsibility (template inheritance)
- 34. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation) Remove dependencies (openfire) Narrow down responsibility (template inheritance) Trust but verify
- 35. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation) Remove dependencies (openfire) Narrow down responsibility (template inheritance) Trust but verify shoulda-matchers
- 36. Unit Tests Checking piece-by-piece Isolate Design idempotent tests (no database truncation) Remove dependencies (openfire) Narrow down responsibility (template inheritance) Trust but verify shoulda-matchers Mock and stub (omniauth_callbacks_controller_spec.rb)
- 37. Integration Tests Putting the pieces together and making sure they fit
- 38. Integration Tests Putting the pieces together and making sure they fit Simulating real users with Capybara
- 39. Integration Tests Putting the pieces together and making sure they fit Simulating real users with Capybara Mocking authentication
- 40. Integration Tests Putting the pieces together and making sure they fit Simulating real users with Capybara Mocking authentication Devise::TestHelpers (problem with spec controllers bypassing the router, problem with lack of direct access to the request variable in integration tests)
- 41. Integration Tests Putting the pieces together and making sure they fit Simulating real users with Capybara Mocking authentication Devise::TestHelpers (problem with spec controllers bypassing the router, problem with lack of direct access to the request variable in integration tests) Warden::Test::Helpers
- 42. Additional Resources Pragmatic,The RSpec Book http://betterspecs.org http://rspec.info https://www.relishapp.com/rspec https://github.com/bbatsov/ruby-style-guide http://mikbe.tk/2011/03/21/mocks-stubs- rspec