XCTest（再）入門/reintroduction-to-xctest

Copyright (C) DeNA Co.,Ltd. All Rights Reserved. 9$5FTUʢ࠶ʣೖ໳ 1 iOS
Test Night #9 - 2प೥- 2018/12/10ʢMonʣ   ࡉপ ༞հ@DeNA

:VTVLF)PTPOVNB • ॴଐ ⁃ %F/"ɹ48&5άϧʔϓɹJ04ςετࣗಈԽνʔϜ • 'BWPSJUF ⁃ •
ۙگ ⁃ ԶίϯEBZͰ2VJDLͷίʔυϦʔσΟϯάʹ͍ͭͯൃද ⁃ ϖϯΪϯଜͷ(JU)VCϦϙδτϦ͕ग़དྷͨ  IUUQTHJUIVCDPNQFOHJONVSB Copyright (C) DeNA Co.,Ltd. All Rights Reserved. 3 @tobi462ʢτϏʣ ಈը΋ެ։ ϓϥΠϕʔτ։ൃ

ࣗ෼ͷൃදΛ ৼΓ͔͑ͬͯΈΔ 5 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
ςετؔ܎ͷ

6 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 6*ςετίʔυͷอकੑΛ্͛ΔϦϑΝΫλϦϯά5*14
• 1SPQFSUZCBTFEUFTUJOHXJUI4XJGU$IFDL • 6*ςετͷ࣮ߦ࣌ؒͷ୹ॖʹ௅ઓ͢Δ • ࣮ફςετۦಈ։ൃJOJ04 • 2VJDL/JNCMFΛΑΓշదʹ࢖͏ͨΊʹ • 4XJGUʹ͓͚Δ.PDLϥΠϒϥϦͷ׆༻ • )551ϞοΫϥΠϒϥϦʮ.PDLJOHKBZʯΛ࢖ͬͯΈͨ࿩ • ιʔείʔυ͔ΒಡΈղ͘2VJDL͸ͲͷΑ͏ʹ࣮૷͞Ε͍ͯΔͷ͔ʁ ൃද͖ͯͨ͠΋ͷʢςετؔ܎ʣ

7 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 6*ςετίʔυͷอकੑΛ্͛ΔϦϑΝΫλϦϯά5*14
• 1SPQFSUZCBTFEUFTUJOHXJUI4XJGU$IFDL • 6*ςετͷ࣮ߦ࣌ؒͷ୹ॖʹ௅ઓ͢Δ • ࣮ફςετۦಈ։ൃJOJ04 • 2VJDL/JNCMFΛΑΓշదʹ࢖͏ͨΊʹ • 4XJGUʹ͓͚Δ.PDLϥΠϒϥϦͷ׆༻ • )551ϞοΫϥΠϒϥϦʮ.PDLJOHKBZʯΛ࢖ͬͯΈͨ࿩ • ιʔείʔυ͔ΒಡΈղ͘2VJDL͸ͲͷΑ͏ʹ࣮૷͞Ε͍ͯΔͷ͔ʁ ൃද͖ͯͨ͠΋ͷʢςετؔ܎ʣ ͳΜ͔ςΫχΧϧͳ಺༰͕ଟ͍… ͋ΒͨΊͯΈΔͱ

ॳ৺ʹཱͪฦͬͯ ࠶ೖ໳ͯ͠ΈΔͷ΋ྑ͍͔΋ 8 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
େ੾ͩͱࢥ͏

10 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͳͥςετࣗಈԽʁ 9$5FTU࠶ೖ໳
͓ΘΓʹ ΞδΣϯμ

Nimble 12 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ྫ୊ɿফඅ੫ࠐͷՁ֨ΛٻΊΔ
func getPrice(_ price: Int) -> Double { return price * 1.05 } ջ͔͍͠ͷ࣌୅

1MBZHSPVOEʹؔ਺Λίϐϖͯ͠

ςετ͍ͨ͠Ҿ਺Ͱݺͼग़͢

͋ͬͯΔͬΆ͍ʂ

͋ͬͯΔͬΆ͍Αʂ ͜Ε΋ཱ೿ͳςετ ͚ͩΕͲʜ

͜͜Ͱ࢓༷มߋ͕ൃੜʂ ফඅ੫͕ʹ 19 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
͝౎߹ओٛͰ͕͢

Nimble 21 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ྫ୊ɿফඅ੫ࠐͷՁ֨ΛٻΊΔʢ8%ʣ
func getPrice(_ price: Int) -> Double { return price * 1.08 } ֹۚܭࢉͩ͠ҰԠಈ࡞֬ೝ͢Δ͔

લճͷ1MBZHSPVOE͸࡟আͪ͠ΌͬͯͨͷͰ࡞Γ௚͠

஋͸ɾɾɾࠓճ΋͋ͬͯΔͳ

஋͸ɾɾɾࠓճ΋͋ͬͯΔͳ ຖճɺ໨ࢹ֬ೝ΋໘౗ͩͳ… ϓϩάϥϜͰνΣοΫͪ͠Ό͑ ϓϩάϥϚ͸ʮଵଦʯ

ςετ༻ͷಠࣗؔ਺

ظ଴஋ͱҰகͨ͠Β⭕ Ұக͠ͳ͔ͬͨΒ❌ 

ೖྗ஋ͱظ଴஋Λ༩͑Δ

݁Ռ͕⭕ͱ❌ͰΘ͔Γ΍͘͢ग़Δʂ

݁Ռ͕⭕ͱ❌ͰΘ͔Γ΍͘͢ग़Δʂ ͜ͷίʔυΛऔ͓͚ͬͯ͹ ࢓༷มߋͰͷ࠶ςετ΋ָͩ͠ ςετύλʔϯΛ૿΍͢ͷ΋ָͩʂ

Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 1MBZHSPVOEʹ࢒͓͔ͯ͠ͳ͍ͱʜ •
ࣗ෼ઐ༻ͳΜͩΑͳ͊ • ύλʔϯ૿͑ͯ͘Δͱɺ໨ࢹͰ΋ݟಀͦ͠͏ʜ ͚ͩͲ…

Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 1MBZHSPVOEʹ࢒͓͔ͯ͠ͳ͍ͱʜ •
ࣗ෼ઐ༻ͳΜͩΑͳ͊ • ύλʔϯ૿͑ͯ͘Δͱɺ໨ࢹͰ΋ݟಀͦ͠͏ʜ ͚ͩͲ… ඪ४తͳ࢓૊Έ͕͋Ε͹ ΈΜͳָ͕Ͱ͖Δͷʹͳ͊ɾɾɾ ͦΕ͕͋ΔΜͰ͢ʂ

35 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • +6OJUͷొ৔
• ୯ମςετࣗಈԽͷϑϨʔϜϫʔΫ • ଞͷݴޠʹ΋Ҡ২ʢ/6OJUɺ$QQ6OJUɺFUDʣ • Y6OJUϑΝϛϦʔͱݺ͹ΕΔ • J04 • 9$5FTUͱ͍͏໊લͰ xUnit ͷొ৔ ,FOU#FDL͕࡞ͬͨ 9$6OJUͰ͸μϝͩͬͨͷ͔ʁ

36 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • Y6OJUͷొ৔Ͱ
• ඪ४Խ͞Εͨ࿮૊Έ͕Ͱ͖ͨ • ςετίʔυͱͯ͠؅ཧͰ͖ΔΑ͏ʹ • ςετ͸ࢿ࢈Ͱ͋Δͱ͍͏ߟ͑ํʹ xUnit ͷొ৔ ͜Ε͕େ͖͍

37 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • Y6OJUͷొ৔Ͱ
• ඪ४Խ͞Εͨ࿮૊Έ͕Ͱ͖ͨ • ςετίʔυͱͯ͠؅ཧͰ͖ΔΑ͏ʹ • ςετ͸ࢿ࢈Ͱ͋Δͱ͍͏ߟ͑ํʹ xUnit ͷొ৔ ͜Ε͕େ͖͍ ςετࣗಈԽͷ࣌୅͕΍͖ͬͯͨ

39 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 5%%
• ςετۦಈ։ൃ • ςετΛۦಈݯͱͯ͠։ൃ͢Δख๏ͷొ৔ • 3FEˠ(SFFOˠ3FGBDUPS • ྑ͍ઃܭͱ͸ςετ͠΍͍͢͜ͱͩ  ͱ͍͏ݴ༿΋ੜ·Εͨ TDD ͷొ৔ 5FTU%SJWFO%FWFMPQNFOU

40 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 5%%
• ςετۦಈ։ൃ • ςετΛۦಈݯͱͯ͠։ൃ͢Δख๏ͷొ৔ • 3FEˠ(SFFOˠ3FGBDUPS • ྑ͍ઃܭͱ͸ςετ͠΍͍͢͜ͱͩ  ͱ͍͏ݴ༿΋ੜ·Εͨ TDD ͷొ৔ 5FTU%SJWFO%FWFMPQNFOU ςετ͕୯ͳΔಈ࡞֬ೝʹ ͱͲ·Βͳ͘ͳ͖ͬͯͨ

42 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • #%%
• 5%%͔Β೿ੜ • ৼΔ෣͍ۦಈ։ൃ • ཁٻ࢓༷ʹ͍ۙܗͰςετ͕هड़͞ΕΔ • J04Ͱ͸ʁ • 2VJDL/JNCMF͕༗໊ BDD ͷొ৔ #FIBWJPS%SJWFO%FWFMPQNFOU 3VCZͷ3TQFDͳͲʹΠϯεύΠΞ ର৅ͷৼΔ෣͍ʹ஫໨͢Δ

43 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • #%%
• 5%%͔Β೿ੜ • ৼΔ෣͍ۦಈ։ൃ • ཁٻ࢓༷ʹ͍ۙܗͰςετ͕هड़͞ΕΔ • J04Ͱ͸ʁ • 2VJDL/JNCMF͕༗໊ BDD ͷొ৔ #FIBWJPS%SJWFO%FWFMPQNFOU 3VCZͷ3TQFDͳͲʹΠϯεύΠΞ ର৅ͷৼΔ෣͍ʹ஫໨͢Δ ςεςΟϯάϑϨʔϜϫʔΫͷ ଟ༷Խ͕࢝·ͬͨɻ

45 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 6*ςετ
• )551ϞοΩϯά • 1SPQFSUZCBTFE5FTUJOH • ΩϟϓνϟˍϦϓϨΠ • .POLFZ3VOOFSʢϥϯμϜૢ࡞Ͱམͪͳ͍͔ʣ ଞʹ΋͍Ζ͍Ζ

46 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 6*ςετ
• )551ϞοΩϯά • 1SPQFSUZCBTFE5FTUJOH • ΩϟϓνϟˍϦϓϨΠ • .POLFZ3VOOFSʢϥϯμϜૢ࡞Ͱམͪͳ͍͔ʣ ଞʹ΋͍Ζ͍Ζ ୯७ͳΧςΰϥΠζ͚ͩͰ΋ ͔ͳΓͷྔͷϥΠϒϥϦɾFW͕

48 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • ͳͥςετΛࣗಈԽ͢Δͷ͔ʁ
• खಈςετʹ͓͚Δ՝୊ • ΦϨΦϨࣗಈςετʹ͓͚Δ՝୊ • Y6OJUͷొ৔ • 5%%ͷొ৔ • #%%ͷొ৔ • ςεςΟϯάϑϨʔϜϫʔΫɾϥΠϒϥϦͷଟ༷Խ ͜͜·Ͱ

49 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • ͳͥςετΛࣗಈԽ͢Δͷ͔ʁ
• खಈςετʹ͓͚Δ՝୊ • ΦϨΦϨࣗಈςετʹ͓͚Δ՝୊ • Y6OJUͷొ৔ • 5%%ͷొ৔ • #%%ͷొ৔ • ςεςΟϯάϑϨʔϜϫʔΫɾϥΠϒϥϦͷଟ༷Խ ͜͜·Ͱ ྺ࢙΍ܦҢΛཧղ͓͚ͯ͠͹ πʔϧɾϑϨʔϜϫʔΫʹ ৼΓճ͞ΕΔ͜ͱ΋ͳ͍ʢ͔΋ʣ

51 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 9$5"TTFSU&RVBM
݁Ռ ظ଴஋ • ੒ޭˠʮ྘ʯ • ࣦഊˠʮ੺ʯ Ξαʔγϣϯ ظ଴஋ͱಉ͔͡ϓϩάϥϜͰൺֱ 5%%ʹ͓͚Δʮ3FEʯʮ(SFFOʯͷޠݯ

53 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. Playground Ͱςετͯ͠ΈΔ
9$5FTU$BTFΛܧঝ

UFTU͔Β࢝·Δϝιου໊ʢن໿ʣ

ظ଴஋ͱ࣮ࡍͷ݁ՌΛൺֱ

ςετΛ࣮ߦ͢Δ

࣮ߦ݁Ռ

59 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest ͷΞαʔγϣϯҰཡ
෼ྨ ௨ৗ ൱ఆܗʢNot / Noʣ ౳஋൑ఆ XCTAssertEqual XCTAssertNotEqual nil൑ఆ XCTAssertNil XCTAssertNotNil Bool൑ఆ XCTAssertTrue XCTAssertFalse > XCTAssertGreaterThan XCTAssertLessThan >= XCTAssertGreaterThanOrEqual XCTAssertLessThanOrEqual ྫ֎ XCTAssertThrowsError XCTAssertNoThrow ࣦഊͤ͞Δ XCTFail -

෼ྨ ௨ৗ ൱ఆܗʢNot / Noʣ ౳஋൑ఆ XCTAssertEqual XCTAssertNotEqual nil൑ఆ XCTAssertNil XCTAssertNotNil Bool൑ఆ XCTAssertTrue XCTAssertFalse > XCTAssertGreaterThan XCTAssertLessThan >= XCTAssertGreaterThanOrEqual XCTAssertLessThanOrEqual ྫ֎ XCTAssertThrowsError XCTAssertNoThrow ࣦഊͤ͞Δ XCTFail - ͍͍ͩͨ൱ఆܗ͕͋Δ

෼ྨ ௨ৗ ൱ఆܗʢNot / Noʣ ౳஋൑ఆ XCTAssertEqual XCTAssertNotEqual nil൑ఆ XCTAssertNil XCTAssertNotNil Bool൑ఆ XCTAssertTrue XCTAssertFalse > XCTAssertGreaterThan XCTAssertLessThan >= XCTAssertGreaterThanOrEqual XCTAssertLessThanOrEqual ྫ֎ XCTAssertThrowsError XCTAssertNoThrow ࣦഊͤ͞Δ XCTFail - ྫ֎ͷεϩʔͷςετ

෼ྨ ௨ৗ ൱ఆܗʢNot / Noʣ ౳஋൑ఆ XCTAssertEqual XCTAssertNotEqual nil൑ఆ XCTAssertNil XCTAssertNotNil Bool൑ఆ XCTAssertTrue XCTAssertFalse > XCTAssertGreaterThan XCTAssertLessThan >= XCTAssertGreaterThanOrEqual XCTAssertLessThanOrEqual ྫ֎ XCTAssertThrowsError XCTAssertNoThrow ࣦഊͤ͞Δ XCTFail - ༧ظ͠ͳ͍෼ذʹೖͬͨͱ͖ͳͲ

106 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • ςετࣗಈԽ
• ϓϩάϥϚ͸܁Γฦ͕͠໘౗ʢࣗಈԽ͢Δͷ͸ඞવʣ • ςεςΟϯά'8ʹΑΓࣗಈԽͷ࿮૊Έ͕ग़དྷͨ • 5%%#%%ͳͲͷ։ൃख๏΋஀ੜ • ϥΠϒϥϦͷଟ༷Խ ·ͱΊ ʮͳͥʁʯΛཧղ͢ΔͱৼΓճ͞Εͳ͍

107 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 9$5FTUʢ࠶ʣೖ໳
• ॳ৺ʹ໭ͬͯ࠶ೖ໳ͯ͠Έͨ • ෮शˍ஌ࣝͷମܥԽʹͭͳ͕ͬͯྑ͍ ·ͱΊ օ༷ͷൃද΋͓଴ͪͯ͠·͢ʂ

%JEZPVFOKPZ SFJOUSPEVDUJPO UP9$5FTU 108 Copyright (C) DeNA Co.,Ltd. All Rights
Reserved.

XCTest（再）入門/reintroduction-to-xctest

XCTest（再）入門/reintroduction-to-xctest

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