Testes automatizados o time e o cliente saem ganhando! @ Agile Vale 2014
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The document discusses the benefits of test-driven development (TDD) and automated testing. It provides an example of using TDD to develop a simple calculator application, starting with writing tests for the desired functionality before implementing the code. As tests are added and code is refined, TDD helps ensure quality, catch errors, and drive good design. When practiced regularly through techniques like TDD and continuous integration, automated testing allows software to be developed and maintained efficiently as a team over time.
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Testes automatizados o time e o cliente saem ganhando! @ Agile Vale 2014
- 1. TESTES AUTOMATIZADOS O TIME E O CLIENTE SAEM GANHANDO!
- 2. MAURO QUEM…
- 6. POR QUE DEVEMOS TESTAR?
- 7. POR QUE DEVEMOS TESTAR? Sistemas grandes sem testes
- 8. POR QUE DEVEMOS TESTAR? Teste é investimento
- 9. POR QUE DEVEMOS TESTAR? Sistemas sem testes
- 10. POR QUE DEVEMOS TESTAR? Sistemas pequenos viram grandes
- 11. POR QUE DEVEMOS TESTAR? Mas isso vende?
- 14. TDD O que é
- 15. calculator_spec.rb RSpec.describe Calculator do! ! describe ‘.sum' do! ! it 'sum 2 and 2' do! expect(Calculator.sum(2, 2)).to eq(4)! end! end! end!
- 16. console $ rspec spec/calculator_spec.rb! ! /path/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:481:in `load_missing_constant': Unable to autoload constant Calculator, expected /path/ calculator.rb to define it (LoadError)! ! from /path/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'! ! from /path/spec/calculator_spec.rb:3:in `<top (required)>'! ! from /path/gems/rspec-core-3.0.4/lib/rspec/core/configuration.rb:1058:in `load'! ! from /path/gems/rspec-core-3.0.4/lib/rspec/core/configuration.rb:1058:in `block in load_spec_files'! ! from /path/gems/rspec-core-3.0.4/lib/rspec/core/configuration.rb:1058:in `each'! ! from /path/gems/rspec-core-3.0.4/lib/rspec/core/configuration.rb:1058:in `load_spec_files’ …
- 17. calculator.rb class Calculator! ! def self.sum(a, b)! 4! end! end
- 18. console $ rspec spec/calculator_spec.rb! ! Run options: include {:focus=>true}! ! All examples were filtered out; ignoring {:focus=>true}! ! Calculator! .sum! sum 2 and 2! ! Finished in 0.20637 seconds (files took 4.72 seconds to load)! 1 example, 0 failures! ! Randomized with seed 49032
- 19. calculator_spec.rb RSpec.describe Calculator do! ! describe '.sum' do! ! it 'sum 2 and 2' do! expect(Calculator.sum(2, 2)).to eq(4)! end! ! it 'sum 3 and 2' do! expect(Calculator.sum(3, 2)).to eq(5)! end! end! end!
- 20. console 1) Calculator.sum sum 3 and 2! Failure/Error: expect(Calculator.sum(3, 2)).to eq(5)! ! expected: 5! got: 4! ! (compared using ==)! # ./spec/calculator_spec.rb:12:in `block (3 levels) in <top (required)>'! ! Finished in 0.24562 seconds (files took 4.67 seconds to load)! 2 examples, 1 failure! ! Failed examples:! ! rspec ./spec/calculator_spec.rb:11 # Calculator.sum sum 3 and 2
- 21. calculator.rb class Calculator! ! def self.sum(a, b)! a + b! end! end!
- 22. console Run options: include {:focus=>true}! ! All examples were filtered out; ignoring {:focus=>true}! ! Calculator! .sum! sum 2 and 2! sum 3 and 2! ! Finished in 0.20995 seconds (files took 4.78 seconds to load)! 2 examples, 0 failures! ! Randomized with seed 64301
- 23. TDD Baby steps
- 24. TDD Refactoring
- 25. TDD Design de código
- 26. TDD Simplicidade
- 27. TDD Qualidade
- 28. TDD Coding Dojo
- 30. calculator_spec.rb RSpec.describe Calculator do! ! describe '.sum' do! ! it 'sum positive values' do! expect(Calculator.sum(2, 2)).to eq(4)! end! ! it 'sum negative values' do! expect(Calculator.sum(-3, -2)).to eq(-5)! end! end! end!
- 31. DIA A DIA
- 32. DIA A DIA Começar o projeto já com os testes
- 33. DIA A DIA TDD/BDD
- 34. DIA A DIA 100% de cobertura de testes
- 35. DIA A DIA Código coletivo
- 36. DIA A DIA Testes como documentação
- 37. DIA A DIA Projeto não para se alguém do time for para a NASA
- 38. DIA A DIA Build de dez minutos
- 39. DIA A DIA Integração continua
- 40. DIA A DIA Deploy continuo
- 41. XP
- 42. XP Coragem
- 43. XP Simplicidade
- 44. OBRIGADO!