見てわかるテスト駆動開発 / TDD Workshop

2021年度リクルート エンジニアコース新人研修の講義資料です

Transcript

1. ݟͯΘ͔Δςετۦಈ։ൃ
   ࿨ా୎ਓ
   !U@XBEB
   
   📷🙆 Apr 12, 2021 @ リクルート
   

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2. t-wada
   t_wada
   twada
   📷🙆 📹🙅
   🙆
   ΑΖ͓͘͠ئ͍͠·͢
   

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3. ςετۦಈ։ൃ
   ͱ͸Կ͔
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   &.
   0
   

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4. ʮಈ࡞͢Δ͖Ε͍ͳίʔυʯɻ3PO+F⒎SJFTͷ͜ͷ
   ؆ܿͳݴ༿͕ɺςετۦಈ։ൃʢ5%%ʣͷΰʔϧ
   ͩɻಈ࡞͢Δ͖Ε͍ͳίʔυ͸͋ΒΏΔҙຯͰՁ஋
   ͕͋Δɻ
   ᴷ,FOU#FDL
   ʰςετۦಈ։ൃʱ·͕͖͑
   

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5. ࣍ͷ໨ඪΛߟ͑Δ
   ͦͷ໨ඪΛࣔ͢ςετΛॻ͘
   ͦͷςετΛ࣮ߦࣦͯ͠ഊͤ͞Δ 3FE
   
   ໨తͷίʔυΛॻ͘
   Ͱॻ͍ͨςετΛ੒ޭͤ͞Δ (SFFO
   
   ςετ͕௨Δ··ͰϦϑΝΫλϦϯάΛߦ͏ 3FGBDUPS
   
   ̍ʙΛ܁Γฦ͢
   5%%ͷαΠΫϧ
   

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6. Write a program that prints the numbers from 1 to 100. But
   for multiples of three print “Fizz” instead of the number and
   for the multiples of five print “Buzz”. For numbers which are
   multiples of both three and five print “FizzBuzz”.
   ͔Β·Ͱͷ਺ΛϓϦϯτ͢ΔϓϩάϥϜΛॻ͚ɻ
   ͨͩ͠ͷഒ਺ͷͱ͖͸਺ͷ୅ΘΓʹň'J[[ʼnͱɺͷഒ
   ਺ͷͱ͖͸ň#V[[ʼnͱϓϦϯτ͠ɺͱ྆ํͷഒ਺ͷ৔
   ߹ʹ͸ň'J[[#V[[ʼnͱϓϦϯτ͢Δ͜ͱɻ
   http://tickletux.wordpress.com/2007/01/24/using-fizzbuzz-to-find-developers-who-grok-coding/
   http://www.aoky.net/articles/jeff_atwood/why_cant_programmers_program.htm
   σϞ'J[[#V[[໰୊
   %
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   0
   

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7. લ൒σϞͷ·ͱΊ5%%ͷεΩϧ
   w໰୊Λখ͘͞෼ׂ͢Δ
   wา෯Λௐ੔͢Δ
   wςετˠԾ࣮૷ˠࡾ֯ଌྔˠ࣮૷
   wςετˠԾ࣮૷ˠ࣮૷
   wςετˠ໌നͳ࣮૷
   wςετͷߏ଄ԽͱϦϑΝΫλϦϯά
   

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8. ςετͷߏ଄Խͱ
   ϦϑΝΫλϦϯά
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   0
   

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9. ʰY6OJU5FTU1BUUFSOTʱΑΓ
   ςετͷϝϯςφϯείετ
   ཧ૝
   ݱ࣮
   

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10. w໰୊Λখ͘͞෼ׂ͢Δ
    wา෯Λௐ੔͢Δ
    wςετˠԾ࣮૷ˠࡾ֯ଌྔˠ࣮૷
    wςετˠԾ࣮૷ˠ࣮૷
    wςετˠ໌നͳ࣮૷
    wςετͷߏ଄ԽͱϦϑΝΫλϦϯά
    ご清聴ありがとうございました
    ·ͱΊ5%%ͷεΩϧ
    

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11. 5%%࣮श
    

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12. '"2
    

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13. w ʮϨΨγʔίʔυͷδϨϯϚʯ
    w lίʔυΛมߋ͢ΔͨΊʹ͸ςετΛ੔උ͢Δඞཁ͕͋Δɻ
    ଟ͘ͷ৔߹ɺςετΛ੔උ͢ΔͨΊʹ͸ɺίʔυΛมߋ͢
    Δඞཁ͕͋Δz
    w ϨΨγʔίʔυʹ৮ΔͨΊͷ
    ޠኮͱٕ๏Λ੔ཧͨ͠ຊ
    w TUBDLPWFSqPXDPN͔Βͷ
    ඃݴٴ਺ୈҐ
    ϨΨγʔίʔυվળΨΠυ
    

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14. ˞l(004zͱݺ͹Εɺ
    5%%ͷ࡭໨ͷόΠϒϧͱͳΔ
    ࣮ફςετۦಈ։ൃ
    

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15. IUUQTHJIZPKQCPPL
    

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16. IUUQTXXXBNB[PODPKQEQ
    

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17. w໰୊Λখ͘͞෼ׂ͢Δ
    wา෯Λௐ੔͢Δ
    wςετˠԾ࣮૷ˠࡾ֯ଌྔˠ࣮૷
    wςετˠԾ࣮૷ˠ࣮૷
    wςετˠ໌നͳ࣮૷
    wςετͷߏ଄ԽͱϦϑΝΫλϦϯά
    ご清聴ありがとうございました
    ·ͱΊ5%%ͷεΩϧ
    

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