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2011.05.21http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
2011   5   22
mrkn           Ruby           Rubyhttp://www.flickr.com/photos/koichiroo/5244581973/2011   5   22
20112010   5       3   22           1
http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
2011.05.21http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
2011   5   22
http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
BDD                Behavior Driven Development2011   5   22
TDD                Test Driven Development2011   5   22
TDD                Test Driven Development2011   5   22
TDD   BDD2011   5   22
2011   5   22
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test-unit2011   5   22
module System    class AgeCalculatorTest < Test::Unit::TestCase      include RR::Adapters::TestUnit                def set...
RSpec2011   5   22
module System    describe AgeCalculator do      context ‘with birthday 1981-07-20’ do        subject { AgeCalculator.with_...
2011   5   22
2011   5   22
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TDD2011   5   22
!Test"#$%                     &()$*                                                   t-wada                              ...
!"#$%1                    !   TDD&()*+,&-.                    !   "Test"/01213.45%&6784                        "   9:;<=>?...
!"#$%1                    !   TDD&()*+,&-.                    !   "Test"/01213.45%&6784                        "   9:;<=>?...
!"#$%2                    !   TDD%"Test"&(())%*+%,%                        "   -./0(12%345                    !   TDD%67&8...
!"#$%2                    !   TDD%"Test"&(())%*+%,%                        "   -./0(12%345                    !   TDD%67&8...
http://blogs.itmedia.co.jp/hiranabe/2005/08/sd4__c05e.html2011   5   22
http://blogs.itmedia.co.jp/hiranabe/2005/10/tdd__bdd__731d.html2011   5   22
2011   5   22
2011   5   22
module System    describe AgeCalculator do      context ‘with birthday 1981-07-20’ do        subject { AgeCalculator.with_...
2011   5   22
http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
2011   5   22
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2011   5   22
http://gihyo.jp/dev/serial/01/ruby/00392011   5   22
http://www.nicovideo.jp/watch/sm129758492011   5   22
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2011   5   22
gem install rspec2011   5   22
rspec                     rspec-core                rspec-expectations                    rspec-mocks2011   5   22
2011   5   22
gem install rspec2011   5   22
http://www.flickr.com/photos/bruce_mcadam/3214482163/2011   5   22
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require ‘spec/test/unit’2011   5   22
‘spec/test/unit’2011   5   22
http://www.slideshare.net/t_wada/sapporo-rubykaigi01-twada-lt-presentation2011   5   22
(a.k.a id:t-wada)                                 Oct, 26, 2008 @SapporoRubyKaigi 01http://www.slideshare.net/t_wada/sappo...
2011   5   22
2011   5   22
2011   5   22
2011   5   22
Photo by rla579: http://flickr.com/photos/rla579/2482286520/2011   5   22
Working Effectively with Legacy tDiary Code                using Cucumber and RSpec                KAKUTANI Shintaro; Eiwa...
2011   5   22
2011   5   22
2011   5   22
FizzBuzzCounter2011   5   22
2011   5   22
#  FizzBuzzCounter.new.each do |i|    p i  end  #=> 1  #   2  #   “Fizz”  #   4  #   “Buzz”2011   5   22
#  fbc = FizzBuzzCounter.new  p fbc.next #=> 1  p fbc.next #=> 2  p fbc.next #=> “Fizz”  fbc.each {|i| break if i > 14 }  ...
# Enumerable  fbc = FizzBuzzCounter.new  p fbc.take(3) #=> [1, 2, “Fizz”]  p fbc.take(3) #=> [4, “Buzz”, “Fizz”]2011   5  ...
2011   5   22
spec/                spec_helper.rb                  require ‘spec_helper’2011   5   22
Live Coding2011   5   22
RSpec Best Practicehttp://jp.rubyist.net/magazine/?0032-TranslationArticle2011   5   22
describe FizzBuzzCounter do    describe ‘.filter’ do      context ‘with 1’ do        it ‘returns 1’ do          FizzBuzzCo...
describe FizzBuzzCounter do    describe ‘.filter’ do      context ‘with 1’ do        it ‘returns 1’ do          FizzBuzzCo...
Observer Pattern2011   5   22
observers                                       1           *                subject                          + change()20...
2011   5   22
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Test Double2011   5   22
describe ConcreteObservable do    describe ‘#change’ do      it ‘calls its notify()’ do        subject.should_receive(:not...
describe ConcreteObservable do    describe ‘#change’ do      subject { ConcreteObservable.new }      it “calls observers’ ...
http://ironruby.codeplex.com/2011   5   22
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Let's begin Behavior Driven Development using RSpec

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Introducing BDD and RSpec.

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Transcript of "Let's begin Behavior Driven Development using RSpec"

  1. 1. 2011.05.21http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  2. 2. 2011 5 22
  3. 3. mrkn Ruby Rubyhttp://www.flickr.com/photos/koichiroo/5244581973/2011 5 22
  4. 4. 20112010 5 3 22 1
  5. 5. http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  6. 6. 2011.05.21http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  7. 7. 2011 5 22
  8. 8. http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  9. 9. BDD Behavior Driven Development2011 5 22
  10. 10. TDD Test Driven Development2011 5 22
  11. 11. TDD Test Driven Development2011 5 22
  12. 12. TDD BDD2011 5 22
  13. 13. 2011 5 22
  14. 14. 2011 5 22
  15. 15. 2011 5 22
  16. 16. 2011 5 22
  17. 17. test-unit2011 5 22
  18. 18. module System class AgeCalculatorTest < Test::Unit::TestCase include RR::Adapters::TestUnit def setup @calc = AgeCalculator.with_birthday(1981, 7, 20) end def test_age_on assert_equal(29, @calc.age_on(2011, 7, 19)) assert_equal(30, @calc.age_on(2011, 7, 20)) end def test_age_today d, m, y = [*Time.now][3..5] stub(@calc).age_on @calc.age_on_today assert_received(@calc) {|c| c.age_on(y, m, d) } end end end2011 5 22
  19. 19. RSpec2011 5 22
  20. 20. module System describe AgeCalculator do context ‘with birthday 1981-07-20’ do subject { AgeCalculator.with_birthday(1981, 7, 20) } describe ‘#age_on’ do context ‘with 2011-07-19’ do specify ‘the age is 29’ do subject.age_on(2011, 7, 19).should be == 29 end end context ‘with 2011-07-20’ do specify ‘the age is 30’ do subject.age_on(2011, 7, 20).should be == 30 end end end describe ‘#age_on_today’ do it ‘calls age_on with year, month, and day on today’ do d, m, y = [*Time.now][3..5] subject.should_receive(:age_on).with(y, m, d) subject.age_on_today end end end end end2011 5 22
  21. 21. 2011 5 22
  22. 22. 2011 5 22
  23. 23. 2011 5 22
  24. 24. TDD2011 5 22
  25. 25. !Test"#$% &()$* t-wada http://d.hatena.ne.jp/t-wada/ 2005+7,23- @J2EE./012103http://www.ne.jp/asahi/t/wada/articles/Test_in_TDD.pdf2011 5 22
  26. 26. !"#$%1 ! TDD&()*+,&-. ! "Test"/01213.45%&6784 " 9:;<=>?@A " 2B%"Test"CDE&-.FGHIJKLF " MNO5PQCRS ! ()TUVWXOYZ[4 " 9:#/ ]^#/ >?@A_`http://www.ne.jp/asahi/t/wada/articles/Test_in_TDD.pdf2011 5 22
  27. 27. !"#$%1 ! TDD&()*+,&-. ! "Test"/01213.45%&6784 " 9:;<=>?@A " 2B%"Test"CDE&-.FGHIJKLF " MNO5PQCRS ! ()TUVWXOYZ[4 " 9:#/ ]^#/ >?@A_`http://www.ne.jp/asahi/t/wada/articles/Test_in_TDD.pdf2011 5 22
  28. 28. !"#$%2 ! TDD%"Test"&(())%*+%,% " -./0(12%345 ! TDD%67&89:;<=/>?@ABCD :;EFG>/HIJKLhttp://www.ne.jp/asahi/t/wada/articles/Test_in_TDD.pdf2011 5 22
  29. 29. !"#$%2 ! TDD%"Test"&(())%*+%,% " -./0(12%345 ! TDD%67&89:;<=/>?@ABCD :;EFG>/HIJKLhttp://www.ne.jp/asahi/t/wada/articles/Test_in_TDD.pdf2011 5 22
  30. 30. http://blogs.itmedia.co.jp/hiranabe/2005/08/sd4__c05e.html2011 5 22
  31. 31. http://blogs.itmedia.co.jp/hiranabe/2005/10/tdd__bdd__731d.html2011 5 22
  32. 32. 2011 5 22
  33. 33. 2011 5 22
  34. 34. module System describe AgeCalculator do context ‘with birthday 1981-07-20’ do subject { AgeCalculator.with_birthday(1981, 7, 20) } describe ‘#age_on’ do context ‘with 2011-07-19’ do specify ‘the age is 29’ do subject.age_on(2011, 7, 19).should be == 29 end end context ‘with 2011-07-20’ do specify ‘the age is 30’ do subject.age_on(2011, 7, 20).should be == 30 end end end describe ‘#age_on_today’ do it ‘calls age_on with year, month, and day on today’ do d, m, y = [*Time.now][3..5] subject.should_receive(:age_on).with(y, m, d) subject.age_on_today end end end end end2011 5 22
  35. 35. 2011 5 22
  36. 36. http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  37. 37. 2011 5 22
  38. 38. 2011 5 22
  39. 39. 2011 5 22
  40. 40. 2011 5 22
  41. 41. http://gihyo.jp/dev/serial/01/ruby/00392011 5 22
  42. 42. http://www.nicovideo.jp/watch/sm129758492011 5 22
  43. 43. 2011 5 22
  44. 44. 2011 5 22
  45. 45. gem install rspec2011 5 22
  46. 46. rspec rspec-core rspec-expectations rspec-mocks2011 5 22
  47. 47. 2011 5 22
  48. 48. gem install rspec2011 5 22
  49. 49. http://www.flickr.com/photos/bruce_mcadam/3214482163/2011 5 22
  50. 50. 2011 5 22
  51. 51. 2011 5 22
  52. 52. 2011 5 22
  53. 53. 2011 5 22
  54. 54. require ‘spec/test/unit’2011 5 22
  55. 55. ‘spec/test/unit’2011 5 22
  56. 56. http://www.slideshare.net/t_wada/sapporo-rubykaigi01-twada-lt-presentation2011 5 22
  57. 57. (a.k.a id:t-wada) Oct, 26, 2008 @SapporoRubyKaigi 01http://www.slideshare.net/t_wada/sapporo-rubykaigi01-twada-lt-presentation2011 5 22
  58. 58. 2011 5 22
  59. 59. 2011 5 22
  60. 60. 2011 5 22
  61. 61. 2011 5 22
  62. 62. Photo by rla579: http://flickr.com/photos/rla579/2482286520/2011 5 22
  63. 63. Working Effectively with Legacy tDiary Code using Cucumber and RSpec KAKUTANI Shintaro; Eiwa System Management,Inc.; Nihon Ruby-no-kaihttp://kakutani.com/articles/working_effectively_with_legacy_tdiary_code_using_cucumber_and_rspec.pdf2011 5 22
  64. 64. 2011 5 22
  65. 65. 2011 5 22
  66. 66. 2011 5 22
  67. 67. FizzBuzzCounter2011 5 22
  68. 68. 2011 5 22
  69. 69. # FizzBuzzCounter.new.each do |i| p i end #=> 1 # 2 # “Fizz” # 4 # “Buzz”2011 5 22
  70. 70. # fbc = FizzBuzzCounter.new p fbc.next #=> 1 p fbc.next #=> 2 p fbc.next #=> “Fizz” fbc.each {|i| break if i > 14 } p fbc.next #=> “FizzBuzz”2011 5 22
  71. 71. # Enumerable fbc = FizzBuzzCounter.new p fbc.take(3) #=> [1, 2, “Fizz”] p fbc.take(3) #=> [4, “Buzz”, “Fizz”]2011 5 22
  72. 72. 2011 5 22
  73. 73. spec/ spec_helper.rb require ‘spec_helper’2011 5 22
  74. 74. Live Coding2011 5 22
  75. 75. RSpec Best Practicehttp://jp.rubyist.net/magazine/?0032-TranslationArticle2011 5 22
  76. 76. describe FizzBuzzCounter do describe ‘.filter’ do context ‘with 1’ do it ‘returns 1’ do FizzBuzzCounter. filter(1).should be == 1 end end end end2011 5 22
  77. 77. describe FizzBuzzCounter do describe ‘.filter’ do context ‘with 1’ do it ‘returns 1’ do FizzBuzzCounter. filter(1).should be == 1 end end end end2011 5 22
  78. 78. Observer Pattern2011 5 22
  79. 79. observers 1 * subject + change()2011 5 22
  80. 80. 2011 5 22
  81. 81. 2011 5 22
  82. 82. 2011 5 22
  83. 83. 2011 5 22
  84. 84. Test Double2011 5 22
  85. 85. describe ConcreteObservable do describe ‘#change’ do it ‘calls its notify()’ do subject.should_receive(:notify) subject.change end end end2011 5 22
  86. 86. describe ConcreteObservable do describe ‘#change’ do subject { ConcreteObservable.new } it “calls observers’ update()” do observer = double(‘an observer’) observer.should_receive(:update) subject.change end end end2011 5 22
  87. 87. http://ironruby.codeplex.com/2011 5 22
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