RSpec、あなたならどう書く？

by Saiid Al-Halawi

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34QFD ͋ͳͨͳΒͲ͏ॻ͘ʁ HPUBOEBSC

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͓લ୭Αʁ

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ࣗݾ঺հ wੁ໺޾ॿ w όοΫΤϯυΤϯδχΞ  3BJMTྺ೥͘Β͍ w -JOD`XFMMͱ͍͏ҩྍελʔτΞοϓͰ 3BJMT৮ͬͯ·͢ɻ w ݸਓͰ͸࠷ۙ"QPMMP5ZQFTDSJQUͳͲ w 5XJUUFS!TBJJE@LL w (JUIVCTBJJEBMIBMBXJ w OPUFIUUQTOPUFNVTBJJE

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͓࢓ࣄ https://jp.techcrunch.com/2019/05/27/linc-well-fundraising/

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͔͜͜Βຊ୊

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w 3TQFDͰςετΛॻ͍͍ͯͯʮಈ͚͘Ͳɺຊ౰ʹ͜ΕͰ͍ ͍ΜͩΖ͏͔ɾɾɾʯͱɺࢥ͏͜ͱ͋Γ·ͤΜ͔ʁ w ϨϏϡʔ΋$*΋ύε͢Δ͠ɺ໰୊͕͋Δ༁Ͱ͸ͳ͍͚ Ͳɾɾɾ w Ͳ͏ʹ΋ͬ͘͠Γ͜ͳ͍͕͚࣌ͬ͜͏͋Δ  ଞͷਓ͕Ͳ͏ॻ͍ͯΔͷ͔ؾʹͳΔ w ৭ʑͳྲّྀ΍ߟ͑ํΛ஌Γ͍ͨ ςετͷϞϠϞϠ

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ͦ͜ͰɺΞϯέʔτΛ ͱΓ͍ͨͱࢥ͍·͢

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wʮ͍ͭ΋͜͏ॻ͍ͯΔʯ wʮن໛΍νʔϜʹΑΔʯ wʮͬͪ͜ͷํ͕޷͖ʯ wʮ͜ΕҎ֎͋Γ͑ͳ͍ʂʯ wɾɾɾFUD ৭ʑ͋Δͱࢥ͍·͕͢ɺ  ࢥ͍ࢥ͍ͷ൑அج४Ͱ͝ճ౴͍ͩ͘͞ɻ

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୊ͯ͠

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34QFDɺ͋ͳͨͳΒͲ͏ॻ͘ʁ

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ୈ̍໰

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3FRVFTU4QFD͸ "DUJPO͝ͱʹ෼͚Δ $POUSPMMFS͝ͱʹ෼͚Δ

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ୈ໰

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4ZTUFN4QFD͸ ॏ͍ͷͰେࣄͳͱ͚ͩ͜ ͳΔ΂͘ଟ͘ͷέʔεॻ͖͍ͨ

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ୈ໰

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4IBSFE&YBNQMFT͸ ΍Γա͗ΔͱٯʹಡΈʹ͍͘ͷͰ  ͋·Γ࢖Θͳ͍ %3:%3:ੵۃతʹ࢖͏

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ୈ໰

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CFGPSFBGUFS BMM ͸ ศར͔ͩΒ࢖͏࣌΋͋Δ 3VCPDPQͰېࢭ https://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/BeforeAfterAll

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ୈ໰

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34QFD/FTUFE(SPVQT͸ ߏ଄Խ͍ͤͨ͞ͷͰڐՄ 3VCPDPQͰېࢭ

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ୈ໰

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ςετσʔλͷఆٛ͸ ݺͼग़͠ݩͰͭ͘Δ ݺͼग़͠ઌͰ͓ͭͬͯ͘͘

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ୈ໰

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࣌ؒ͸ ࢭΊΔ ͭ͘Δ

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ୈ໰

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ςετͷઆ໌͸ ೔ຊޠ ӳޠ

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ୈ໰

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ෳࡶͳࣄલσʔλ͸ CFGPSFͰ·ͱΊͯ೿ MFUͰ૊Έ্͛Δ೿

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ୈ໰

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JUείʔϓ಺͸ ઈରʹԚͨ͘͠ͳ͍ʂ ͋Δఔ౓ॊೈʹ

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Ҏ্ͰऴΘΓͰ͢

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w 3FRVFTU4QFD͸ɾɾɾ"DUJPO͝ͱ w 4ZTUFN4QFD͸ɾɾɾେࣄͳͱ͚ͩ͜ w 4IBSFE&YBNQMFT͸ɾɾɾ͋·Γ࢖Θͳ͍ w CFGPSFBGUFS BMM ͸ɾɾɾېࢭ w /FTUFE(SPVQTɾɾɾ࢖͏ w ςετσʔλͷఆٛ͸ɾɾɾݺͼग़͠ݩͰͭ͘Δ w ࣌ؒ͸ɾɾɾͭ͘Δ w ςετͷઆ໌͸ɾɾɾӳޠ എ৳ͼ w ෳࡶͳࣄલσʔλ͸ɾɾɾMFUͰ૊Έ্͛Δ w JUείʔϓ಺͸ɾɾɾઈରԚͨ͘͠ͳ͍ʂ ࢲͷ৔߹

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ճ౴Λݟ͍ͯΔͱ  ͳΜͱͳ͘ਓͱͳΓ͕ ݟ͖͑ͯ·͢Ͷ ‘’ Tell me how you write RSpec tests, I'll tell you who you are. ’’

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օ͞Μ͸  Ͳ͏ͩͬͨͰ͠ΐ͏͔ʁ

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w 3FRVFTU4QFD͸ɾɾɾ$POUSPMMFS͝ͱ w 4ZTUFN4QFD͸ɾɾɾେࣄͳͱ͚ͩ͜ w 4IBSFE&YBNQMFT͸ɾɾɾੵۃతʹ࢖͏ w CFGPSFBGUFS BMM ͸ɾɾɾ w /FTUFE(SPVQTɾɾɾ࢖͏ w ςετσʔλͷఆٛ͸ɾɾɾݺͼग़͠ઌ 'BDUPSZ Ͱͭ͘ Δ w ࣌ؒ͸ɾɾɾͭ͘Δ w ςετͷઆ໌͸ɾɾɾ೔ຊޠ w ෳࡶͳࣄલσʔλ͸ɾɾɾMFUͰ૊Έ্͛Δ w JUείʔϓ಺͸ɾɾɾ͋Δఔ౓ॊೈʹ ౰೔ͷΞδϟΠϧूܭ݁Ռ ໨ࢹ ΍΍༏੎ ΍΍༏੎ ΍΍ͬͪ͜ ༏੎ ΍΍༏੎ ༏੎ ΍΍༏੎ ѹ౗త༏੎ ΍΍༏੎ উഊ͔ͭͣ έʔεʹΑΔ