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My TDD Speaker: େ૔խ࢙ Event: େߐށRubyձٞ08 Date: 2020-02-11

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ϝλ • εϥΠυຕ਺ɿ44ຕ • ൃද࣌ؒɿ20෼ • σϞɿ༗Γ

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okuramasafumi.inspect • ໊લɿେ૔խ࢙ • ॴଐɿϑϦʔϥϯε • ίϛϡχςΟɿGrow.rbओ࠵ɺͦͷଞଟ਺ࢀՃ • Rubyྺɿ໿7೥ • झຯɿϓϩάϥϛϯάɺొஃɺᘖᘣɺӳޠ

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໨࣍ 1. My TDD (first part) 2. My gem 3. My TDD (second part) 4. ࠂ஌

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1. My TDD (first part)

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झຯɿϓϩάϥϛϯά

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ϓϩάϥϛϯά͸ָ͍͠

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Ͱ΋ɺଞʹ΋༠࿭͕ଟ͍

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ͦ͜Ͱ…

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TDD ➡

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TDD ➡ Todan Driven Development

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झຯɿొஃ

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ࣗ෼ͷ࡞Διϑτ΢ΣΞʹ͍ͭͯൃද͢Δ ͜ͱͰ։ൃʹϓϨογϟʔΛ͔͚Δ

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ࠓͷॴͱͯ΋ޮՌ͕͋Δ

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͜Ε͕ࢲͷTDD

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༨ஊɿ ඈߦػ΍৽װઢͷத͸࠷ߴͷϓϩάϥϛϯ ά؀ڥ

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༨ஊͷ༨ஊɿ ࠓ೥͸طʹ৽װઢʹ1ճͱඈߦػʹ2ճ৐ͬ ͍ͯ·͢ɻ͍ͩͿḿΓ·ͨ͠ɻ

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͞Βʹ༨ஊɿ ։ൃΛਐΊΔͨΊͷख๏ͱͯ͠ɺTODO͕ ࣌ݶര஄ʹͳΔΑ͏ͳgemΛॻ͍͍ͯΔਓ ͕͍·ͨ͠Ͷʢૉఢʣ

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༨ஊऴΘΓ

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ࠓ೔఻͍͑ͨ͜ͱͦͷұ • ϓϩάϥϛϯά͸ָ͍͠ • ొஃ͸ָ͍͠ • ૊Έ߹ΘͤͨΒ࠷ڧͰ͸ʁ • ΈΜͳ΋ͲΜͲΜొஃͯ͠ͲΜͲΜίʔυॻ͜͏

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ͰɺԿΛ࡞͍ͬͯΔΜͰ͔͢ʁ

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2. My gem

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JSONγϦΞϥΠβΛ࡞͍ͬͯ·͢ɻ

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طଘͷJSONγϦΞϥΠβͷ͜ͱ • jbuilderɿ஗͍ɺDSL݁ߏ೉͍͠ • ActiveModelSerializersɿϝϯς͞ΕͯΔͷ͔Θ͔Βͳ͍ɺ಺ ෦ߏ଄ෳࡶɺ͋·Γ଎͘ͳ͍ • fast_jsonapiɿ଎͍͚ͲJSON:APIܗ͔ࣜ͠αϙʔτ͠ͳ͍

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γϯϓϧͰɺϝϯς͕؆୯Ͱɺ DSL͕֮͑΍ͯ͘͢ɺͦͦ͜͜଎͍ɺ JSONγϦΞϥΠβΛ࡞Γ͍ͨʂ

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Alba https://github.com/okuramasafumi/alba

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0.1.0૬౰ͷ΋ͷ͕Ͱ͖ͨؾ͕͍ͯ͠·͢

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ͳͷͰɺϦϦʔε͠·͢

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Albaͷػೳʢࠓ೔࣌఺ʣ • JSONͷϧʔτΩʔΛઃఆՄೳ • attributesϝιουͰJSONʹؚΊΔଐੑΛෳ਺ࢦఆՄೳ • attributeϝιουͰJSONʹؚΊΔଐੑΛϒϩοΫͰࢦఆՄೳ • JSONͷόοΫΤϯυʹOjΛࢦఆՄೳ

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ࠓ೔఻͍͑ͨ͜ͱͦͷ್ • Alba͍ͬͯ͏gemΛ࡞͍ͬͯ·͢ • ػೳ͸·ͩશવ଍Γͳ͍͚Ͳɺ͜Ε͔ΒΨγΨγ௥Ճ͍ͨ͠ • طଘͷ΋ͷʹෆຬ͕͋ΔͳΒ࡞Ε͹͍͍͡Όͳ͍ • ௥Ճ͢΂͖ػೳʹ͍ͭͯͷҙݟɺ͓଴͍ͪͯ͠·͢

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ۤ࿑ͨ͠఺ • ΫϥεϝιουͷDSLͰઃఆͨ͠৘ใΛΠϯελϯε͔Βࢀর ͢ΔΑ͏ʹ͢Δ࢓૊Έ • ࣮ޮੑ͕͋Δఔ౓͋ΔςετΛॻ͘͜ͱ • શମతͳUIͱઃܭ

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ςετͱUI

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3. My TDD (second part)

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طଘͷϥΠϒϥϦʹ໰୊఺Λײ͡Δ ≠ ͲΜͳ;͏ʹվળ͢Ε͹͍͍͔Θ͔Δ

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ςετΛॻ͖ͳ͕Β୳͍ͬͯ͘

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TDD ➡ Test Driven Development

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ࢲͷ࠾༻ͨ͠ํ๏ • ·ͣϢʔεέʔεͷςετΛॻ͘ʢ࢓༷ࡦఆʣ • ͳΜ͔ҧ࿨ײ͕͋ͬͨΒςετΛॻ͖௚͢ʢ࢓༷มߋʣ • ςετʹೲಘ͕͍ͬͨΒ࣮૷͢Δ • ࣮૷͕ऴΘͬͨΒݸผͷΫϥεͷςετΛޙ͔Β௥Ճ͢Δʢ࣮ ͸·ͩॻ͍ͯͳ͍ʣ

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ϘτϜΞοϓͰ͸ͳ͘τοϓμ΢ϯ

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͜Ε͕ࢲͷTDD

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ࠓ೔఻͍͑ͨ͜ͱͦͷࢀ • ࢓༷ͱ͔ɺͲ͏͍͏ΠϯλʔϑΣʔε͕ཧ૝͔ͳΜͯͦ͏؆୯ ʹ͸Θ͔Βͳ͍ • ϢʔεέʔεΛςετԽͯ͠ɺೲಘߦ͘·Ͱॻ͘ • Ϣχοτςετ͸ޙ෇͚Ͱ͍͍ͷͰ͸

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4. ࠂ஌

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https://kaigionrails.org

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·ͱΊ • ϓϩάϥϛϯάͱొஃ͸ָ͍͠ɺ૊Έ߹ΘͤΔͱ΋ͬͱָ͍͠ • Alba͍ͬͯ͏gemɺ࡞ͬͯ·͢ • τοϓμ΢ϯͰϢʔεέʔε͔ΒςετΛॻ͘ͱ͍͍͔΋ • Kaigi on Railsɺ΍Γ·͢