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Test Driven Development

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Blazing Cloud
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TEST DRIVEN DEVELOPMENT
TEST-DRIVEN DEVELOPMENT • Design • Focus / Project Management • Collaboration • Creation of Tests
MOVING TO TDD • Build tests before refactoring or upgrading • Test-drive bug fixes • Write tests for anything you worry about • Continuous Integration is essential • Remove unused (untested) code
RED – GREEN – REFACTOR 1. Write the test 2. Watch it fail 3. Make it pass 4. Make the code good, make sure it still passes
UNIT TEST FRAMEWORKS • Test::Unit • Shoulda • Rspec http://github.com/ultrasaurus/test-framework-comparison
INTEGRATION TEST FRAMEWORKS • Cucumber • Webrat / Capybara • Selenium • Watir • And more…
OUTSIDE IN TESTING • Write an scenario with Cucumber (1) • Write a step definition • Run and Watch it fail (2) • Write a failing code example with RSpec (3) • Get the example to pass (4) • Refactor (5) • Repeat 3.1 – 3.3 until Cucumber step is passing • Repeat 2 – 3 until Cucumber scenario is passing (6) • Refactor (7)
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Test Driven Development

  • 2. TEST-DRIVEN DEVELOPMENT • Design • Focus / Project Management • Collaboration • Creation of Tests
  • 3. MOVING TO TDD • Build tests before refactoring or upgrading • Test-drive bug fixes • Write tests for anything you worry about • Continuous Integration is essential • Remove unused (untested) code
  • 4. RED – GREEN – REFACTOR 1. Write the test 2. Watch it fail 3. Make it pass 4. Make the code good, make sure it still passes
  • 5. UNIT TEST FRAMEWORKS • Test::Unit • Shoulda • Rspec http://github.com/ultrasaurus/test-framework-comparison
  • 6. INTEGRATION TEST FRAMEWORKS • Cucumber • Webrat / Capybara • Selenium • Watir • And more…
  • 7. OUTSIDE IN TESTING • Write an scenario with Cucumber (1) • Write a step definition • Run and Watch it fail (2) • Write a failing code example with RSpec (3) • Get the example to pass (4) • Refactor (5) • Repeat 3.1 – 3.3 until Cucumber step is passing • Repeat 2 – 3 until Cucumber scenario is passing (6) • Refactor (7)