devlove2012-let-yor-test-drive-dev-more

Transcript

1. ςετʹ։ൃΛ
   ۦಈ͍ͤͨ͞
   (ג) Ӭ࿨γεςϜϚωδϝϯτ
   ॾڮګհ @moro
   ΋ͬͱ
   

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2. • MOROHASHI Kyosuke
   • @moro on Twitter and GitHub
   • works at @esminc
   

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6. ͖ΐ͏࿩͢͜ͱ
   •ςετΛॻ͜͏ͱͯ͠ɺ͔͑ͬͯ։
   ൃ͕ਏ͘ײͨ͜͡ͱɺ͋Γ·ͤΜ?
   •ςετΛ͍͍ಋ͖໾ʹ͢ΔݟํΛ঺
   հ͠·͢
   

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7. Ͳ͏ͯ͠ςετΛॻ͘ͷ
   •ͦΕ͕ਖ਼͍͠΍Γํ͔ͩΒ
   •඼࣭͕޲্͢Δ͔Β
   •σάϨ࣌ʹ͙͢ؾ͚ͮΔ͔Β
   

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8. ͡Ό͋ςετΛॻ͘ͷ͸ɺ
   কདྷͷͨΊʹߴ͍อݥྉΛ
   ෷͏Α͏ͳ΋ͷͳͷ
   

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9. http://flic.kr/p/zBdU7
   ςετ͸։ൃΛ
   ۦಈ͢Δ
   ͓࡞๏ͱ͔ɺ
   ਖ਼͍͔͠Ͳ͏͔ͱ͔͚ͩͰͳ͘
   ։ൃ͠΍͘͢͢Δ
   

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10. ίʔυΛॻ͘ͱ͖ʹ
    ΍͍ͬͯΔ͜ͱ
    

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11. think
    code
    run
    Programming workflow
    

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12. think
    code
    run
    ίʔυΛॻ͍ͨΒ
    ಈ͔͍ͨ͠Ͱ͢ΑͶ?
    

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13. SVO
    •ॻ͍ͨίʔυ͸ɺ࣮ߦͯ͠Έ
    ͳ͍ͱΘ͔Βͳ͍
    •ॻ͍ͨΒ͙͢ʹಈ͔ͨ͘͠ͳ
    Γ·ͤΜ?
    

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14. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    myobj = MyClass.new(:arg)
    p myobj.do_something
    pp myobj
    end
    ςετ࢖Θͣʹ࣮ߦ͢Δ
    

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15. ಈ͔͢
    % irb -r ./my_class
    > my_obj = MyClass.new
    > myobj.do_something
    > myobj
    ର࿩࣮ߦ؀ڥ΋͋Δ
    

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16. w͙͢ʹಈ͔ͤΔ
    wͰ΋΋͏ͪΐͬͱෳࡶ
    ʹͳΔͱ
    

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17. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    alice = Person.create(name: 'alice', age: 24)
    alisia = Person.create(name: 'alisia', age: 30)
    bob = Person.create(name: 'bob', age: 18)
    chris = Person.create(name: 'chris', age: 42)
    pp Person.name_like('ali')
    pp Person.younger_than(24)
    end
    ΋͏ͪΐͬͱෳࡶͳྫ
    

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18. ಈ͔͢
    $ rails console
    > alice = Person.create(name: 'alice')
    > alissa = Person.create(name: 'alissa')
    > bob = Person.create(name: 'bob')
    > chris = Person.create(name: 'chris')
    >
    > Person.name_like('ali')
    > Person.younger_than(24)
    ର࿩࣮ߦ؀ڥͰ΋
    Ͱ͖Δͱ͍͑͹Ͱ͖Δ
    

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19. ࣮ߦ݁ՌΛ
    ݟΔͨΊʹ
    ඞཁͳ͜ͱ
    

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20. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    alice = Person.create(name: 'alice', age: 24)
    alisia = Person.create(name: 'alisia', age: 30)
    bob = Person.create(name: 'bob', age: 18)
    chris = Person.create(name: 'chris', age: 42)
    pp Person.name_like('ali')
    pp Person.younger_than(24)
    end
    σʔλͳͲͷ४උ
    લͷσʔλ͕࢒ͬͯͳ͍͔΋֬ೝ͠ͳ͍ͱΠΧϯ
    

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21. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    alice = Person.create(name: 'alice', age: 24)
    alisia = Person.create(name: 'alisia', age: 30)
    bob = Person.create(name: 'bob', age: 18)
    chris = Person.create(name: 'chris', age: 42)
    pp Person.name_like('ali')
    pp Person.younger_than(24)
    end
    ݁ՌΛ໨ࢹ
    

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22. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    alice = Person.create(name: 'alice', age: 24)
    alisia = Person.create(name: 'alisia', age: 30)
    bob = Person.create(name: 'bob', age: 18)
    chris = Person.create(name: 'chris', age: 42)
    pp Person.name_like('ali')
    pp Person.younger_than(24)
    end
    ݁Ռ͕࣮ߦॱʹґଘ
    ΠνΠνߟ͑ͳ͍ͱ͍͚ͳ͍
    

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23. ಈ͔͢
    if __FILE__ == $0
    require 'pp'
    alice = Person.create(name: 'alice', age: 24)
    alisia = Person.create(name: 'alisia', age: 30)
    bob = Person.create(name: 'bob', age: 18)
    chris = Person.create(name: 'chris', age: 42)
    pp Person.name_like('ali')
    pp Person.younger_than(24)
    end
    ݁Ռ͕࣮ߦॱʹґଘ
    σʔλΛมߋͨ͠Γ͢ΔͱπϥΠ
    ༨ܭͩͱࢥͬͨ
    σʔλΛফͨ͠Β
    ผͷςετͰ
    ࢖͓ͬͯͨ...
    

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24. •σʔλͱ͔Λ४උ͠ͳ͍ͱ!
    •݁ՌΛ໨ࢹ͠ͳ͍ͱ!!
    •࣮ߦॱʹ΋஫ҙ͠ͳ͍ͱ!!!
    ͔͠΋ςετ͕૿͑Ε͹૿͑Δ΄Ͳ
    େมʹͳΔɻ͏΁͐
    ςετ࢖Θͣʹ࣮ߦ͢Δ
    ಈ͔͢
    

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25. ͦ͜ͰςεςΟϯά
    ϑϨʔϜϫʔΫͰ͢Α
    • Arrange :
    σʔλ΍ίϯςΩετΛ༻ҙ
    • Act :
    ͦΕͧΕಠཱʹɺಈ͔ͯ͠
    • Assert :
    ݁ՌΛࣗಈతʹνΣοΫ͢Δ
    

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26. ಈ͔͢
    ςετͱ࣮ͯ͠ߦ͢Δ
    describe Person do
    context '4 people with below' do
    let!(:alice) { Person.create(name: 'alice', age: 24) }
    let!(:alissa){ Person.create(name: 'alissa', age: 30) }
    let!(:bob) { Person.create(name: 'bob', age: 18) }
    let!(:chris) { Person.create(name: 'chris', age: 42) }
    describe '.name_like' do
    subject { Person.name_like('ali').map(&:name) }
    it { should =~ %w[alice alissa] }
    end
    describe '.younger_than' do
    subject { Person.younger_than(24).map(&:name) }
    it { should =~ %w[bob] }
    end
    end
    end
    

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27. Arrange:
    σʔλͳͲΛ
    ମܥͩͬͯ४උ͢Δ
    

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28. ribe Person do
    ntext '4 people with below' do
    let!(:alice) { Person.create(name: 'alice', age:
    let!(:alissa){ Person.create(name: 'alissa', age:
    let!(:bob) { Person.create(name: 'bob', age: 18
    let!(:chris) { Person.create(name: 'chris', age:
    describe '.name_like' do
    subject { Person.name_like('ali').map(&:name) }
    it { should =~ %w[alice alissa] }
    end
    describe '.younger_than' do
    subject { Person.younger_than(24).map(&:name) }
    it { should =~ %w[bob] }
    end
    

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29. Act:
    ͦΕͧΕ
    ಠཱʹಈ͔͢
    

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30. ibe Person do
    text '4 people with below' do
    et!(:alice) { Person.create(name: 'alice', age:
    et!(:alissa){ Person.create(name: 'alissa', age:
    et!(:bob) { Person.create(name: 'bob', age: 18
    et!(:chris) { Person.create(name: 'chris', age:
    escribe '.name_like' do
    subject { Person.name_like('ali').map(&:name) }
    it { should =~ %w[alice alissa] }
    nd
    escribe '.younger_than' do
    subject { Person.younger_than(24).map(&:name) }
    it { should =~ %w[bob] }
    nd
    

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31. Assert:
    ݁ՌΛ
    ࣗಈతʹݕূ͢Δ
    

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32. let!(:alissa){ Person.create(name: 'alissa', age
    let!(:bob) { Person.create(name: 'bob', age: 1
    let!(:chris) { Person.create(name: 'chris', age:
    describe '.name_like' do
    subject { Person.name_like('ali').map(&:name)
    it { should =~ %w[alice alissa] }
    end
    describe '.younger_than' do
    subject { Person.younger_than(24).map(&:name)
    it { should =~ %w[bob] }
    end
    d
    

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33. ςετ͕։ൃΛۦಈ͢ΔϙΠϯτ
    ίʔυͷ࣮ߦΛߏ଄Խ͢Δ
    • ςεςΟϯάϑϨʔϜϫʔΫ͕ɺίʔυ
    ࣮ߦΛॿ͚ͯ͘ΕΔ:
    • ίϯςΩετͷηοτΞοϓ
    • ಠཱ࣮ͯ͠ߦ
    • ݁Ռͷݕূ
    

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34. ͜
    ͜
    ·
    Ͱ
    ͷ
    ·
    ͱ
    Ί
    ‣ ͪΐͬͱେ͖͍ίʔυΛɺ
    ςετ࢖Θͣʹಈ͔͢ͱେม
    ‣ ςετΛ࢖͏ͱɺॻ͍ͨίʔυ
    Λ͙͢ʹɺ҆৺ͯ͠ಈ͔ͤΔ
    

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35. ΋͏ͪΐͬͱ೉͍͠
    ໰୊ʹऔΓ૊Ήͱ͖
    Ͳ͏͢Δ?
    http://flic.kr/p/5xKFpY
    

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36. ͜Μͳ͜ͱΛ
    ߟ͍͑ͯΔ͸ͣ
    •ࣄલ৚݅͸ͲΜͳ͔ͳ?
    •݁Ռ͸Ͳ͏ͳΕ͹͍͍Μͩ?
    •Ͳ͏͍͏࡞Γ͕͍͍ͷ͔ͳ?
    

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37. think
    code
    run
    Programming workflow
    

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38. think
    code
    run
    Programming workflow
    ౰ͨΓલ͗ͯ͢Θ͔Βͳ͍͚Ͳ
    ·ͣɺߟ͍͑ͯ·͢ΑͶ?
    

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39. wͳʹΛ͢Δ͔
    wͲ͏͢Δ͔
    

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41. Ϣʔβͱͯ͠γεςϜʹ
    ʮͳʹΛʯͯ͠ཉ͍͔͠
    

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42. ։ൃऀͱͯ͠
    ʮͲ͏ʯಈ͔͍͔ͨ͠
    

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43. ։ൃऀͱͯ͠
    ΦϒδΣΫτʹʮͳʹΛʯͯ͠ཉ͍͔͠
    

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44. ͍··͞ʹ࣮૷͍ͯ͠Δ։ൃऀͱͯ͠
    ͜ͷΦϒδΣΫτΛʮͲ͏ʯ࡞Δ͔
    

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45. ͍··͞ʹ࣮૷͍ͯ͠Δ։ൃऀͱͯ͠
    ͜ͷϝιου͸ʮͳʹΛʯ͢Δ͔
    

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46. ͍··͞ʹ࣮૷͍ͯ͠Δ։ൃऀͱͯ͠
    ͜ͷϝιουΛʮͲ͏ʯ࡞Δ͔
    

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47. ͳʹΛ͢Δ͔Λ
    ߟ͑ͯ
    ςετʹॻ͘
    

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48. ͍ΖΜͳࢹ఺ͰʮͳʹΛʯ͢Δ͔
    

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49. wϢʔβͱͯ͠γεςϜʹʮͳ
    ʹΛʯͯ͠ཉ͍͔͠
    w։ൃऀͱͯ͠ΦϒδΣΫτʹ
    ʮͳʹΛʯͯ͠ཉ͍͔͠
    

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50. Cucumber
    •ࣗવݴޠ(΋ͪΖΜ೔ຊޠ΋!!)Λ
    ࢖ͬͯʮͳʹΛʯ͢Δ͔Λॻ
    ͚Δςετπʔϧɻ
    •cucumber-jvm͍ͬͯ͏Javaα
    ϙʔτ΋
    

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51. View Slide

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53. 5%%ϑϨʔϜϫʔΫ
    •jUnitͱ͔ɺRSpecͱ͔
    •։ൃऀͱͯ͠ɺΦϒδΣΫτ
    ʹԿΛ͍͔ͤͨ͞Λهड़͢Δ
    

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54. Ϣʔβc։ൃऀ
    ͱͯ͠
    γεςϜc͜ͷΦϒδΣΫτ
    ʹ
    ʮͳʹΛʯͯ͠ཉ͍͔͠ߟ͑Δ
    

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55. ͜
    ͜
    ·
    Ͱ
    ͷ
    ·
    ͱ
    Ί
    ‣ ࢲͨͪ͸ߟ͍͑ͯΔ
    ‣ ʮͳʹΛʯ͢Δ͔ͱʮͲ͏ʯ
    ࡞Δ͔Λ෼͚ͯߟ͑Δ
    ‣ ʮͳʹΛʯ͢Δ͔Λςετͱ
    ͯ͠ॻ͘
    

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56. Α͋͘Δײ͡ͷ
    ݕࡧϑΥʔϜ
    

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57. wΑ͋͘ΔݕࡧϑΥʔϜ
    w໊લͷ෦෼Ұக
    w೥ྸͰͷൺֱ
    wझຯͰͷݕࡧ
    Person
    - name (str)
    - age (int)
    Hobby
    - name (str)
    Interest
    - person_id(fk)
    - hobby_id(fk)
    1
    *
    *
    1
    

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58. ߟ͑Δ
    • ActiveRecord ͷscopeΛఆٛ
    ͠·͠ΐ͏
    • (࣮͸΋͏લͷྫͰͰ͖ͯ·ͨ͠ :-) )
    ·ͣ͸؆୯ͳͱ͜Ζ͔Β
    

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59. describe Person do
    context '4 people with below' do
    let!(:alice) { Person.create(name: 'alice', age: 24)
    let!(:alissa){ Person.create(name: 'alissa', age: 30)
    let!(:bob) { Person.create(name: 'bob', age: 18) }
    let!(:chris) { Person.create(name: 'chris', age: 42)
    describe '.name_like' do
    subject { Person.name_like('ali').map(&:name) }
    it { should =~ %w[alice alissa] }
    end
    describe '.younger_than' do
    subject { Person.younger_than(24).map(&:name) }
    it { should =~ %w[bob] }
    end
    end
    end
    

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60. class Person < ActiveRecord::Base
    scope :name_like, ->(name) {
    where("#{table_name}.name LIKE ?", "#{name}
    }
    scope :younger_than, ->(age) {
    where("#{table_name}.age < ?", age.to_i)
    }
    end
    

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61. ߟ͑Δ
    •ྫ͑͹: είʔϓ໊͸...
    `has_at_least_one_hobby'.
    •hobbyΛ഑ྻͰऔΔͱ͍͍͔ͳ?
    `%w[programming BBQ travel]` .
    •ͱɺߟ͑ͨ͜ͱΛςετʹॻ͘
    hobby͸Ͳ͏͠Α͏
    

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62. ribe Person do
    ntext '4 people with below' do
    # snip
    describe '.has_at_least_one_hobby(hobbies)' do
    let(:hobbies) { %w[programming BBQ travel] }
    subject(:people) do
    Person.has_at_least_one_hobby(hobbies)
    end
    end
    d
    ͏ʔΜɺ໊લ͕௕͗͢ΔɺΑ͏ͳ...
    

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63. ߟ͑Δ
    • தؒςʔϒϧ'interests'ͬͯͷ͕͋Δ!
    • Ruby ͩͱ `#any?`ϝιου͕͋Δͳɻ
    • ͡Ό͋͜ΜͳͷͰͲ͏͔:
    Person.interest_in_any(ho
    bbies)
    ΋ͬͱྑ໊͍લ͸ͳ͍͔ͳ
    

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64. describe Person do
    context '4 people with below' do
    # snip
    describe '.interest_in_any(hobbies)' do
    let(:hobbies) { %w[programming BBQ travel
    subject(:people) do
    Person.interest_in_any(hobbies)
    end
    end
    end
    end Αͦ͞͏!
    

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65. ߟ͑Δ
    • ֬ೝ͢ΔͨΊʹϢʔβ2ਓҎ্΄͍͠
    • ৚݅ʹϚον͢Δਓͱɺ͠ͳ͍ਓͱ
    • ͜͏͍͏ͷΛbefore {} (RSpec)΍
    setup {} (test/unit)ʹॻ͘
    ࣄલ৚݅ͳΜ͚ͩͬ
    

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66. describe '.interest_in_any(hobbies)' do
    let(:hobbies) { %w[programming BBQ travel] }
    before do
    hobbies.each do |hobby_name|
    Hobby.create!(name: hobby_name)
    end
    Hobby.create!(name: 'baseball')
    alice.hobbies << Hobby.where(name: 'travel').
    bob.hobbies << Hobby.where(name: 'programmi
    chris.hobbies << Hobby.where(name: 'baseball'
    end
    subject(:people) { Person.interest_in_any(hobbi
    end
    

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67. ߟ͑Δ
    •ͪΌΜͱɺϚον͢Δ͸ͣͷ
    ਓ͚ͩϚονͯ͠ΔΑͶ...?
    ͳʹΛݕূ͢Δ͔
    

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68. Hobby.create!(name: hobby_name)
    end
    Hobby.create!(name: 'baseball')
    alice.hobbies << Hobby.where(name: 'travel')
    bob.hobbies << Hobby.where(name: 'programm
    chris.hobbies << Hobby.where(name: 'baseball
    end
    subject(:people) { Person.interest_in_any(hobb
    it { should =~ [alice, bob] }
    end
    

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69. http://flic.kr/p/4rxk3X
    ࠷ॳͷΰʔϧ͕
    ݟ͑ͨ
    

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70. describe '.interest_in_any(hobbies)' do
    let(:hobbies) { %w[programming BBQ travel] }
    before do
    hobbies.each do |hobby_name|
    Hobby.create!(name: hobby_name)
    end
    Hobby.create!(name: 'baseball')
    alice.hobbies << Hobby.where(name: 'travel').first
    bob.hobbies << Hobby.where(name: 'programming').first
    chris.hobbies << Hobby.where(name: 'baseball').first
    end
    subject(:people) { Person.interest_in_any(hobbies) }
    it { should =~ [alice, bob] }
    end
    ͜ͷςετ͕௨ͬͨΒҰ൪؆୯ͳਖ਼ৗܥ͸Ͱ͖ͨ
    

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71. ͜
    ͜
    ·
    Ͱ
    ͷ
    ·
    ͱ
    Ί
    ‣ ߟ͑ͨ͜ͱΛςετʹॻ͘
    ‣ ςετʹॻ͔ΕͨίʔυΛ
    ݟͯ೰ΜͩΓۛຯͨ͠Γ͢Δ
    ‣ ςετ͕௨ΔΑ͏ʹίʔυΛॻ͘
    

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73. ߟ͑Δ
    •Railsͩͱೖྗ஋͸จࣈྻͷ
    Hashͱͯ͠औΔͷ͕Ұൠత
    • ϑΥʔϜΦϒδΣΫτͱ࣮ͯ͠૷͢Ε
    ͹Αͦ͞͏!!
    • PeopleQueryͱݺ΅͏
    ৄࡉݕࡧ
    

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74. require 'spec_helper'
    describe PeopleQuery do
    include_context \
    '4 people: alice(24), aliass(30), bob(18), chris(42)'
    describe '.new(name_like: "ali", younger_than: 25)' do
    let(:query) {
    PeopleQuery.new(name_like: 'ali', younger_than: 25)
    }
    subject { query.people }
    it { should == [alice] }
    end
    end
    

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75. ߟ͑Δ
    PeopleQueryͷAPI
    • ίϯετϥΫλͰɺHashͰෳ
    ਺ͷ৚݅ΛऔΓ
    • PeopleQuery#people Ͱ
    ActiveRecord::Relation Λฦͤ
    ͹Αͦ͞͏
    

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76. require 'spec_helper'
    describe PeopleQuery do
    include_context \
    '4 people: alice(24), aliass(30), bob(18),
    describe '.new(name_like: "ali", younger_than
    let(:query) {
    PeopleQuery.new(name_like: 'ali',
    younger_than: 25)
    }
    subject { query.people }
    it { should == [alice] }
    end
    end
    Act
    

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77. require 'spec_helper'
    describe PeopleQuery do
    include_context \
    '4 people: alice(24), aliass(30), bob(18),
    describe '.new(name_like: "ali", younger_than
    let(:query) {
    PeopleQuery.new(name_like: 'ali',
    younger_than: 25)
    }
    subject { query.people }
    it { should == [alice] }
    end
    end
    Arrange
    

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78. describe PeopleQuery do
    include_context \
    '4 people: alice(24), aliass(30), bob(18),
    describe '.new(name_like: "ali", younger_than
    let(:query) {
    PeopleQuery.new(name_like: 'ali',
    younger_than: 25)
    }
    subject { query.people }
    it { should == [alice] }
    end
    end
    Assert
    ͜Ε͕࣍ͷΰʔϧ
    

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79. http://flic.kr/p/4rxk3X
    ࣍ͷΰʔϧ΋
    ݟ͑ͨ
    

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80. require 'spec_helper'
    describe PeopleQuery do
    include_context \
    '4 people: alice(24), aliass(30), bob(18), chris(42)'
    describe '.new(name_like: "ali", younger_than: 25)' do
    let(:query) {
    PeopleQuery.new(name_like: 'ali', younger_than: 25)
    }
    subject { query.people }
    it { should == [alice] }
    end
    end
    FAQ: ςετ͸
    ͲΕ͘Β͍ॻ͘΂͖?
    A; ΰʔϧͩͱࢥ͏ͱ͜Ζ·Ͱॻ͘ͱΑ͍
    

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81. ͜
    ͜
    ·
    Ͱ
    ͷ
    ·
    ͱ
    Ί
    ‣ ೉͍͠໰୊΋ɺ·ͣʮͳʹΛʯͯ͠
    ཉ͍͔͠Λߟ͑Δ
    ‣ ςετΛ࢖ͬͯɺΰʔϧΛઃఆ͢Δ
    

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82. ߟ͑Δ
    • Person.interest_any?()Λ͏·͘
    ϥοϓͰ͖ͳ͍͔
    • Railsͷ࢓૊ΈΛߟ͑Δʹ:
    • ίϯτϩʔϥ͔Βݺ͹Εͦ͏
    • ͦͷ࣌͸ύϥϝʔλ͸จࣈྻͰ͖ͦ͏
    hobby;ͨͨͼ
    

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83. describe '.new(name_like: "ali", hobbies: "baseball")' d
    include_context \
    'there are 4 hobbies: programming, travel, BBQ and b
    let(:query) {
    PeopleQuery.new(name_like: 'ali',
    hobbies: 'baseball travel')
    }
    before do
    alice.hobbies << Hobby.where(name: 'BBQ')
    alissa.hobbies << Hobby.where(name: 'baseball')
    end
    subject { query.people }
    it { should == [alissa] }
    end 3ͭͷ৚݅Λ૊Έ߹Θͤ͸ɺ
    ͜Μͳ;͏ʹಈ͍ͯʮ΄͍͠ʯ
    

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84. cribe '.new(name_like: "ali", hobbies:
    seball")' do
    nclude_context \
    'there are 4 hobbies: programming, travel, BBQ
    baseball'
    et(:query) {
    PeopleQuery.new(name_like: 'ali',
    hobbies: 'baseball travel')
    efore do
    alice.hobbies << Hobby.where(name: 'BBQ')
    alissa.hobbies << Hobby.where(name: 'baseball')
    nd
    ubject { query.people }
    

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85. class PeopleController <
    ApplicationController
    def index
    @query =
    PeopleQuery.new(params[:q])
    @people = @query.people
    end
    end
    

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86. ͜
    ͜
    ·
    Ͱ
    ͷ
    ·
    ͱ
    Ί
    ‣ ࿅Δͱ͖͸ɺ࢖ΘΕํ΋
    ߟ͑Δ Ϣʔβͱ͔ϑϨʔϜϫʔΫͱ͔
    
    ‣ ςετͰͷ"DUͱɺϓϩ
    μΫτίʔυ͸Α͘ࣅΔ
    

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87. ςετۦಈ։ൃͷਐΊํ
    • ख͕͚͍ͯΔΦϒδΣΫτͷৼΔ෣͍Λ
    ߟ͑Δɺϝιου໊ɺҾ਺ɺ໭Γ஋ͳͲ
    • ؔ࿈͢ΔσʔλͳͲɺৼΔ෣͏ͨΊͷࣄ
    લ৚݅Λߟ͑Δ
    • γϯϓϧͳݕূΛॻ͘
    • ಈ͔͢
    

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88. ςετ͕։ൃΛۦಈ͢ΔϙΠϯτ
    τϥΠΤϥʔ͢Δ৔ʹͳΔ
    • ίʔυΛॻ͍ͯɺಡΜͰɺͦͯ͠ߟ͑
    Δ৔ʹͳΔɻ
    • νʔϜϝϯόʔʹ΋ɺϗϯϞϊͷίʔ
    υͰ૬ஊͰ͖Δɻ
    • ࣮ߦ·ͰͰ͖Δ!!
    

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89. think
    code
    run
    Programming workflow
    ςετ͸ɺ࣮ߦ͢Δ͜ͱͱߟ͑Δ͜ͱͱɺ
    ྆ํΛαϙʔτͯ͠։ൃΛۦಈ͢Δ
    

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90. Ԟ͕ਂ͍ ྑ͘΋ѱ͘΋
    
    • ͍ΖΜͳςΫχοΫ͕͋Δ
    • ϑΣΠΫ΍ࡾ֯ଌྔ
    • σʔλੜ੒ύλʔϯ
    • ϞοΫ΍ελϒ
    • assert͔Βॻ͘͜ͱ΋Α͋͘Δ
    • ͪΐ͏೉͍͠ϩδοΫͷςετͱ͔
    

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91. ૉৼΓॏཁ
    •͚ͬ͜͏୾ྗ͕͍Δ
    • ࣮૷ͷৄࡉΛߟ͍͑ͨؾ࣋ͪΛ
    ͙ͬͱת͑Δ
    •ྔ͸࣭ʹసԽ͢Δ
    

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92. View Slide

93. View Slide

94. View Slide

95. ςΫχοΫΑΓ΋
    େࣄͳ͜ͱ
    ࠶ܝ
    
    

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96. http://flic.kr/p/zBdU7
    ςετ͸։ൃΛۦಈ͢Δ
    • run: ࣮ߦΛߏ଄Խ͢Δɻ
    • think: τϥΠ&Τϥʔͷ৔ʹͳΔɻ
    • ΋ͪΖΜɺϦϑΝΫλϦϯάΛॿ͚ͨΓ
    σάϨͷ๷ࢭʹ΋໾ཱͭ
    

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97. think
    code
    run
    Programming workflow
    

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98. think
    code
    run
    Programming workflow
    ໰୊͕೉͚͠Ε͹ͦΕ͚ͩɺ
    ಈ͔͠ͳ͕Β࡞ΕΔςετ͕໾ʹཱͭ
    

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99. Thank you for listening.
    - May it be a light for you in dark places,
    when all other lights go out.
    - May it be a light for you in dark places,
    when all other lights go out.
    

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