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XP, Testing and ninja testing
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Turn features on and off without deploys. Used by thousands of Ruby developers.
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seki at druby.org
June 27, 2025
Programming
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XP, Testing and ninja testing
Rubyセミナー大阪 2025で話したスライドのXPとテストのPartだよ!
忍者式テストはSQiP2023やSS2023を探してみるか、m_sekiに問い合わせてね
seki at druby.org
June 27, 2025
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Transcript
OJOKBUFTUJOHDPN 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
91Λհͨ͠ɻ࣍ςετ 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
͔͜͜Βຊฤɻ 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
ࣗݾհ ͋ͷʢҩྍػثιϑτΣΞ։ൃͷF9USFNFͳʣνʔϜʹॴଐ͢Δ։ൃऀ ؔকढ़ϓϩάϥϚ ਂ୩ඒςελʔ ͜ͷ9ઢ$5ը૾ࢲͨͪͷ։ൃͨ͠ஔͰࡱӨͨ͠ࢲͨͪͷதʢਓؒυοΫͷ࠶ݕࠪͰࡱͬͯΒͬͨΑʂʣ
91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
F9USFNF1SPHSBNNJOH 91 ΞδϟΠϧϓϥΫςΟεϚοϓ"HJMF4UVEJPIUUQTXXXBHJMFTUVEJPKQBHJMFQSBDUJDFNBQ
F9USFNF1SPHSBNNJOH ✦ ϙετɾιϑτΣΞֶख๏ ✦ ιϑτΣΞ։ൃϏδωεͷن ✦ ϕετϓϥΫςΟεΛۃʹ࣮ࢪ ✦ ։ൃαΠΫϧΛૉૣ͘ճ͢
91 ΞδϟΠϧϓϥΫςΟεϚοϓ"HJMF4UVEJPIUUQTXXXBHJMFTUVEJPKQBHJMFQSBDUJDFNBQ
F9USFNF1SPHSBNNJOH ✦ ϙετɾιϑτΣΞֶख๏ ✦ ιϑτΣΞ։ൃϏδωεͷن ✦ ϕετϓϥΫςΟεΛۃʹ࣮ࢪ ✦ ։ൃαΠΫϧΛૉૣ͘ճ͢
91 ੈلͷऴΘΓͷιϑτΣΞֶΛ্ॻ͖͠ʹ͖ͨʂʢͷ࡞Γํͩͬͨͷͷ͕ঃʑʹ࡞ΒͤํʹͳͬͨɻͦΕΛ࠶ͼ࡞Γํʹͨ͠ײ͢͡Δʣ
F9USFNF1SPHSBNNJOH ✦ ϙετɾιϑτΣΞֶख๏ ✦ ιϑτΣΞ։ൃϏδωεͷن ✦ ϕετϓϥΫςΟεΛۃʹ࣮ࢪ ✦ ։ൃαΠΫϧΛૉૣ͘ճ͢
91 ϏδωεͳͷͰɺͦͦ͜͜ʹෳࡶͰɺਓࢿۚʹ੍͕͋ΓɺϦϦʔε͢Δ͕ܾ·͍ͬͯΔɻͦ͏͍͏ϓϩδΣΫτʹ͍͍ͯΔɻʢখ͍͞ͱ͖ʹཱͨͳ͍ʣ
F9USFNF1SPHSBNNJOH ✦ ϙετɾιϑτΣΞֶख๏ ✦ ιϑτΣΞ։ൃϏδωεͷن ✦ ϕετϓϥΫςΟεΛۃʹ࣮ࢪ ✦ ։ൃαΠΫϧΛૉૣ͘ճ͢
91 ͍͍͘͢͝ϓϥΫςΟεΛۃʹΔʂۃྲྀϓϩάϥϛϯάͷ༝དྷɻʢ㲈ͪΐͬͱ͍͍ͭΛ·ΜΜͳͬͨ͘Γ͠ͳ͍ʣ
F9USFNF1SPHSBNNJOH ✦ ϙετɾιϑτΣΞֶख๏ ✦ ιϑτΣΞ։ൃϏδωεͷن ✦ ϕετϓϥΫςΟεΛۃʹ࣮ࢪ ✦ ։ൃαΠΫϧΛૉૣ͘ճ͢
91 ૉૣ͘ɺʢͱ͔ૣ͘ͱ͔εϐʔυͱ͔ʣͪΐͬͱΘ͔Γʹ͍͘
F9USFNF1SPHSBNNJOH ✦ ૉૣ͘ٸ͍ͰΔ͜ͱͰͳ͍ ✦ λΠϜϘοΫε ✤ ظؒͱඪʢͷ֬ೝํ๏ʣ ✦ ֬ೝ͢Δͱ͍͏͜ͱɺͦͷํ๏ɺ࣌ ظΛλΠϜϘοΫεͷ࢝Ίʹߟ͑Δ
͜ͱ͕ૉૣ͞Λৢ͢ ✦ ਓϛε͢Δɺ͕ࠜఈʹ͋Δ ✤ ૣ͘ϛε͕όϨΔΑ͏ʹ ϛε͠ͳ͍Α͏ʹͯ͠ϛε͢Δ 91 ͍ΖΜͳλΠϜϘοΫε͕͋ͬͯɺͦΕΛར༻ͯ͠Λ໌ΔΈʹग़͢ɻʢۃʹͨ͠Β࣌ؒཧͷςΫχοΫͰͳ͘ͳͬͨʣ
F9USFNF1SPHSBNNJOH ✦ ෮։ൃͷ͍͍ͭ͘͢͝ʹͨ͠ʂ ✤ ϢʔβʔετʔϦʔ ͣͬͱΔʗຖݟ͢ʗೖΕࢠ͕ͳ͍ ✤ ड͚ೖΕςετ
શһΔʗͣͬͱΔʗຖݟ͢ʗ৽ ͨͳΛΈ͚ͭΔςετʹ͢Δ ✤ ςετۦಈ։ൃ ͋ΒΏΔΞΫςΟϏςΟʹൣғΛ͛Δ ✦ ͦ͏͍͏ͭΓͰຊฤΛฉ͜͏ ऀࣜςετͰ
͜Εͨͩͷ91Ͱ͋Δ F9USFNF1SPHSBNNJOH ✦ 91ࣗମʹۃ͞Λ͞Βʹ্͛Δ͜ͱΛଅ͢Έ͕ࡏ͞Ε͍ͯΔʢͱࢥ͏ ✤ 91ͷຊʹॻ͍ͯ͋Δఔͷۃ͞ɺग़ൃͰ͋ͬͯͦΕ͕ਖ਼͍͠91ͱ͍͏Θ͚ ͡Όͳ͍ ✤ ͦͷۃ͞ʹཹ·Δͷຊʹۃྲྀ͔ʁ ͷ91ࡇΓͷ࣌ͰͦΕʹؾ͍͍ͮͯ·ͤΜͰͨ͠
91Λհͨ͠ɻ࣍ςετ 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
ాਓ͞Μᐌ͘
ాਓ͞Μᐌ͘ ͍ͭҾ༻ͯ͘͠Εͯ͋Γ͕ͱ͏͍͟͝·͢
UXBEB͞Μᐌ͘
ղઆ͠·͢ ද໘తʹฉ͘ͱؾ͕͍͍͕ ✦ ςετΛͯ͠ϞϊΑ͘ͳΒͳ͍ ✤ Α͘͢ΔͷϓϩάϥϛϯάͩͧʂʢͦΕͦ͏ʣ ͬͺϓϩάϥϛϯάॏཁͩͳʔ
ςετͰΛݟ͚ͭͯͳ͓͢ ✦ ؾʹೖΒͳ͍͜ͱΛ୳ͯ͠ɺͬͱྑ͘͢ΔͨΊʹςετ͢Δ ✤ ͏·͍ͬͨ͘ςετɺͱ͍͏ͷ৽͍͠Λݟ͚ͭΒΕͨςετ ✤ ࣦഊͨ͠ςετɺͱ͍͏ͷͳʹ͕ݟ͔ͭΒͳ͔ͬͨςετ ͜ͷλʔϯຊฤͷཧղΛॿ͚ΔલઆͰ͢Α ΤϥʔΛൃݟ͢ΔతͰϓϩάϥϜΛ࣮ߦ͢Δաఔ͕
ςετͰ͋Δɽ ιϑτΣΞͷ৴པੑQ
ࣗಈԽ͍ͨ͠ͷʁ ͳ͓ऀࣜςετͷςετखಈςετͰ͢ ✦ ճάϦʔϯʹͳͬͯCJUΑ͘ͳΒͳ͍͚Ͳ ✤ ͔ͩΒࣗಈԽͰ͢ΑʂແବͳΜͰʂʢΘ͔Δʣ ✤ Ͱ͔ͯ͠͠࡞Γյ͕͋͠Δ͔͠Εͳ͍͔Β ͦΜͳʹ৺ੑͷਓ͕ࣗಈԽͰ͖ͨͱ͜Ζʹ͔͕͠ͳ͍ͬͯࢥ͏͕ͣͳ͍Αͳ
✤ ςετͷࣗಈԽ࣮ߦΑΓɺࣗಈԽ͢ΔաఔͰͷ࣮ͷચ࿅ʢϓϩάϥϛϯάʣ ͷ΄͏ʹՁ͕͋Δ ʮ࣭Λ୲อ͢Δʯͱ͍͏ϑϨʔζ͕ӕ͗͘͢͞ΔͷͰ᪳ͳ͘͏ਓͱڑஔ͘Α͏ʹͯ͠Δɻอͱ͍͍͍͑ͷʹ ͜ Ε Ϩ τ ϩ χ Ϝ ʁ
ऀࣜςετͷςετ͜͏͍͏ςετ ͍ΘΏΔςετٕ๏ͷతͱ͍ͩͿ͕ͪ͏ ✦ Βͳ͍Λ୳ͨ͢Ίͷςετ ✤ ͳ͓ͨ͢ΊʹΔ ✤ ޙΓͤ͞ΔͨΊʹΔ ✦ άϦʔϯͷΛ૿͍ͨ͠Θ͚͡Όͳ͍
✦ खΛݮΒͨ͢ΊͷςετͰͳ͍ ✦ Կݴ͏͚ͲखಈͰͬͯΔΑʂ ͜ͷλʔϯऀࣜςετͷཧղΛॿ͚ΔલઆͰ͢Α
͔͜͜Βຊฤɻ 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~
ݴ͍ͨ͜͠ͱ͕͋Δ Γ
ظ͕ؒ͋Δͱߟ͍͑͢ ✦ ͋ͱिؒʢɾ࣌ؒʣͳΒ ✤ ͳʹΛ͢Δͷ͕͓ಘ͔ʁ ✤ ͲͷػೳΛ࡞Δ͔ ✤ ͲͷΛͳ͓͔͢ ✤
ͲΜͳςετΛ͢Δ͔ ✤ ͲΜͳจॻΛ͔͢ ✦ ظ͕ؒ͋Δ͜ͱͰબͰ͖ΔɾܾΊ ΒΕΔ ✦ ʮͷ͘͢͝Α͍͜ͱʯ͚ͩʹͳΔ λΠϜϘοΫεԾઆ ظ͕ؒఆ·Βͳ͍ͱʮΑ͍͜ͱʯΛશͯΛΓͨ͘ͳΔɻϏδωεͳͷͰ੍͕࣌ؒ͋ΔΜͩͧʂ
ͲΜͳจॻ͕ͬͨͷ͔ ݶΒΕͨظؒͰॻ͚ΔɾಡΊΔɾϝϯςφεͰ͖ΔͷͳΜͩʂʁ ✦ ͲΜͳͱ͖ʹಡΉʁ ✤ Εͨ͜Ζʹ͍߹Θ͕ͤ͋ͬͨΓɺվͨ͘͠ͳͬͨΓ͢Δͱ͖ ✦ ͳʹ͕΄͍͠ʁ ✤ ͍ํɻͦͷͱ͖ظ͍ͯͨ͠ͷಈ͖͕ॻ͍ͯ͋Δͱ͏Ε͍͠
͍·ͷಈ࡞͕ਖ਼͍͠ͷ͔յΕ͍ͯΔͷ͔ɺޙੈʹΘ͔Βͳ͍ ͦͷڍಈΛબΜͩҙਤʢ༷ͷૉΒ͠͞ɾٽ͘ٽ͘બΜͩʣͱ͔ ✦ ऀࣜςετͷνέοτͦͷͷ ✤ ͍ํɾ΄͍͠ͷ͕ςετهͰॻ͔Ε͍ͯΔ ✤ ͜ͷςετྫࣔʹΑΔ༷ʹۙ͘ɺΛ୳͢ͱ͖ͷग़ൃͱͳΔ ✤ ʢνέοτ໋ྩॻͱ͔ථͱ͔͡Όͳ͍Μͩͧʂʣ ؒຖબ͖ͯͨ݁͠Ռɺͬͨจॻड͚ೖΕςετͩͬͨ
ࠓ91ͱςετͱऀࣜςετͷ͓Λ͠·ͨ͠🥷 91ͱςετ ~ ऀࣜςετͷ࣮ફ͔Β ~