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Golang API Testing the HARD way
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Seiji Takahashi
November 25, 2018
Programming
13
6.8k
Golang API Testing the HARD way
Presentations at GoConference 2018 Autumn.
Seiji Takahashi
November 25, 2018
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Transcript
API TESTING THE HARD WAY @__timakin__ Go CONFERENCE 2018 Autumn
SEIJI TAKAHASHI timakin @__timakin__ __timakin__ ॴଐɿ(VOPTZ*ODϝσ ΟΞࣄۀຊ෦ ݴޠɿ(P 4XJGU +BWB4DSJQU
ΞδΣϯμ w (Pͷ"1*ͷςετʹ͓͚ΔςελϏϦςΟ w ςετʹؔ͢Δ5JQT w Ϣχοτςετʹ͍ͭͯ w ΠϯςάϨʔγϣϯςετʹ͍ͭͯ w
ϥΠϒϥϦબఆɺͭ·͍ͮͨՕॴ
None
(Pͷςετϊϋ w ϢχοτςετͷޮԽ w (Pͷ༏Εͨඪ४ػೳ
(Pͷςετϊϋ w ϢχοτςετͷޮԽ w (Pͷ༏Εͨඪ४ػೳ w .PDL w JOUFSGBDFʹΑΔநԽ
(Pͷςετϊϋ w ϢχοτςετͷޮԽ w (Pͷ༏Εͨඪ४ػೳ w .PDL w JOUFSGBDFʹΑΔநԽ w
5FTUJOHGSBNFXPSLT
(Pͷςετϊϋ w ϢχοτςετͷޮԽ w (Pͷ༏Εͨඪ४ػೳ w .PDL w JOUFSGBDFʹΑΔநԽ w
5FTUJOHGSBNFXPSLT w OFUIUUQIUUQUFTUͷ͍ํ
ςετͷ࣮ྫ ʢಛʹΠϯςάϨʔγϣϯςετʣ ͷྫ͕Կނ͔ෆ͍ͯ͠Δʜ
(PͰςετ͢Δ߹ͷجຊ w JOUFSGBDFͷ׆༻ w AQBDLBHFYYY@UFTUAͱ͍͏໋໊ w 5BCMF%SJWFO5FTU w 5FTU$BDIF $PWFSBHF
#FODINBSL
*OUFSGBDFΛ׆༻ͯ͠ΔͱԿ͕͍͍ͷ͔ʁ w ผͷϨΠϠʔͷ࣮ΛΒͣʹίʔυΛॻ͖ਐΊΒ ΕΔ w ࣮ͷΓସ͕͑༰қʹߦ͑Δ w NPDLੜʹ͑Δ w αϯϓϧϨεϙϯεͷ࡞͕͍͠
֎෦"1*ݺͼग़͠ͳͲͰʹཱͭ
AQBDLBHFYYY@UFTUA w 5FTU1BDLBHFΛ࣮ͱ͢Δ w ࣮ࡍͷݺͼग़͠ํͱܗࣜΛ߹ΘͤΔ w QSJWBUFͳมʹର͢Δࢀর͕Ͱ͖ͳ͍Α͏ʹ͢Δ
5BCMF%SJWFO5FTU
5BCMF%SJWFO5FTU w ςετରͱͳΔσʔλྻɺ ظ͞ΕΔ݁ՌͷྻΛΠςϨʔτ͢Δ͜ͱͰ ෳͷςετέʔεΛ؆ܿʹ·ͱΊΒΕΔɻ w ϕϯνϚʔΫΛ͚ͨΓɺU1BSBMMFMΛ͍͍ͨ߹ 4VCUFTUTݕ౼͢Δɻ
5FTU$BDIF $PWFSBHF #FODINBSL w 5FTU$BDIF ςετؔ͝ͱʹ*%͕ৼΒΕͯɺ ݁Ռ͕ϑΝΠϧʹు͖ग़͞Εͯอଘ͞ΕΔɻ Ұக͢Δ݁Ռ͕͋Ε͍ճ͢ɻ w $PWFSBHF
#FODINBSL ඪ४Ͱαϙʔτ͞ΕΔ ΧόϨοδϨϙʔτͷग़ྗɺϕϯνϚʔΫ
$BDIFʹ͍ͭͯʜ IUUQTTQFBLFSEFDLDPNUJNBLJOIPXHPDBDIFUFTUT
(PͰςελϏϦςΟʔΛ্͛Δʹ w ͦͦςετ͕͠ʹ͍͘ίʔυμ ϝ w JOUFSGBDFͰϞοΫՄೳͳ෦ҐΛ૿͢ w ςετϔϧύʔͷॆ࣮ w ϢχοτςετʹدͤΒΕΔͱ͜Ζ
పఈͯ͠دͤΔׂͱେࣄ
(PͰςελϏϦςΟʔΛ্͛Δʹ w ϢχοτςετͷͨΊͷඪ४ػೳ͕ ॆ࣮͍ͯ͠ΔͷͰɺͦΕΛ׆༻͢ΔͨΊʹɺ Ͱ͖ΔݶΓߏମͷςετύοέʔδʹ ϩδοΫΛूதͤ͞Δɻ w 4FSWJDFʹϑΟϧλϦϯάͷϩδοΫΛͨ͠Γ ͠ͳ͍ɻ
͜͜·Ͱ͕લఏ
Ϣχοτςετͷ
Ϣχοτςετͷ5JQT w 5FTU)FMQFS w 4UVCTUBOEBSEQBDLBHFT w 'JYUVSFT w 5FTUJOHGSBNFXPSLT
5FTU)FMQFS U)FMQFS ΛݺͿ͜ͱͰɺ )FMQFSͷؔΛςετΛ ϚʔΫͯ͠ɺGBJMͨ࣌͠ʹ ݺͼग़͠ՕॴΛQSJOUͯ͘͠ΕΔɻ ͜ΕΛݺͳ͍ͱ෦ͰGBJM͠ ͨΓɺॲཧΛڞ௨Խͨ࣌͠ʹਏ ͍ࢥ͍Λ͢Δɻ
5FTU)FMQFS ඪ४ύοέʔδͷςετಛʹ)FMQFS͕׆༻͞Ε͍ͯΔ ʢSVO DPQZ'JMF OFX5FNQ%JSʣ
4UVCTUBOEBSEQBDLBHFT w UJNFύοέʔδɺSBOEύοέʔδͳͲͷ݁ՌΛ͏ ॲཧTUVC͢Δඞཁ͕͋Δ
ελϒํ๏ w άϩʔόϧมͷࠩ͠ସ͑ w ελϒՄೳͳϥούʔ w αʔυύʔςΟύοέʔδͷར༻
άϩʔόϧมͷࠩ͠ସ͑ άϩʔόϧͳมͰมΘΓ͏Δ݁ՌΛऔಘ͢ ΔΑ͏ʹ͠ɺςετ࣌ͦΕΛॻ͖͑Δɻ ಉ͡ͳΒͱ͔͘ɺQBSBMMFMͰͬͨ࣌ʹෆ ͕҆͋Δɻ HPSN͕ͬͯΔʜ IUUQTHJUIVCDPNKJO[IVHPSNCMPCNBTUFSVUJMTHP-
ελϒՄೳͳϥούʔ ελϒ༻ͷ͕ηοτ͞Εͯ ͍ͨΒఆతʹΛฦؔ͢Λ ఆٛ͢Δɻ
αʔυύʔςΟύοέʔδͷར༻ w ࣌ࠁݻఆ w HJUIVCDPNCFOCKPIOTPODMPDL w HJUIVCDPNULVDIJLJGBLFUJNF w DPEFDMPVEGPVOESZPSHDMPDL
4UVCTUBOEBSEQBDLBHFT w ʮ༗ޮظݶΛա͗ͨΒΤϯςΟςΟΛແޮԽ͢Δʯ Έ͍ͨͳॲཧ͕͋Δ߹ɺ࣌ࠁΛ୯७ʹݻఆ͢Δͩ ͚Ͱͳ͘ਐΊΔඞཁ͕͋Δ w ͦ͏ͨ͠߹αʔυύʔςΟͷύοέʔδߟ ྀʹೖΕΔ͕ɺʢ͍ͩͿ࣮͕গͳ͍ͷͰʣ جຊతʹؔͰϥοϓ͢ΕࣄΓΔͱࢥΘΕΔɻ
'JYUVSFT w ςετσʔλͷఆٛํ๏ w ߏମ w ྻͷσʔλߏʢ5BCMF%SJWFO5FTUʣ w ͦͷଞ w
+40/ :".-
'JYUVSFT w ߏମ w ϙΠϯλΛड͚औͬͯૢ࡞͢ΔؔΛςετ͢Δ ߹ɺςετ༻ͷมͷݩσʔλ͕มΘΓଓ͚ͯɺ ҙਤ͠ͳ͍ڍಈ͕ى͜Δɻ w 5BCMF%SJWFO5FTUͷΑ͏ʹݸผͷέʔεͰࢀর͢ Δσʔλ͕ҧ͏߹0,
'JYUVSFT w +40/ :".- w JPVUJM3FBE'JMFͯ͠ςετσʔλΛಡΈࠐΉ w ಡΈࠐΈ༻ͷσʔλJOQVU ·ͨTSD
ൺֱ༻ͷσʔλHPMEFO w "1*ͷϦΫΤετͱϨεϙϯεΛ શ෦+40/ఆ͓͍ٛͯͯ͠ςετ͢Δͷ͋Γ
'JYUVSFT w JOQVUHPMEFO w ඪ४ύοέʔδͰͷར༻Օॴ w ςετΧόϨοδϖʔδͷ༰ݕূ w (PEPDੜ༰ݕূ
'JYUVSFT w JOQVUHPMEFO w ඪ४ύοέʔδͰͷར༻Օॴ w ςετΧόϨοδϖʔδͷ༰ݕূ w (PEPDੜ༰ݕূ w
࣮ࡍͷར༻ྫ w "1*ͷϦΫΤετͱϨεϙϯεΛ શ෦+40/ఆ͓͍ٛͯͯ͠ςετ͢Δ w εςʔλείʔυ͚ͩνΣοΫ͢ΔΑ͏ͳ߹ɺ ϦΫΤετ͚ͩA TSDAͱ͍͏Α͏ͳ໋໊Ͱఆٛ͢Δͷ͋Γ
5FTUJOHGSBNFXPSLT w ʮ(Pͬͯɺ\\ҙͷݴޠ໊^^Ͱ͍͏ͱ͜Ζ\\ͦͷݴޠͷදత ͳςετϑϨʔϜϫʔΫ໊^^ͬͯͳΜ͔ͳ͍ΜͰ͔͢ʁʯ w "1*ϑϨʔϜϫʔΫͰಉ͕ٞ͋͡Δͱࢥ͍·͕͢ʜ
5FTUJOHGSBNFXPSLT w ʮ(Pͬͯɺ\\ҙͷݴޠ໊^^Ͱ͍͏ͱ͜Ζ\\ͦͷݴޠͷදత ͳςετϑϨʔϜϫʔΫ໊^^ͬͯͳΜ͔ͳ͍ΜͰ͔͢ʁʯ w "1*ϑϨʔϜϫʔΫͰಉ͕ٞ͋͡Δͱࢥ͍·͕͢ʜ w ςετϑϨʔϜϫʔΫͷੋඇ w ଞͷਓ͕ແݶʹޠ͍ͬͯΔͷͰলུ
w ʮͨͩͷ%4-ʯ w ʮίϯςΩετʹ͋ͬͨϝοηʔδදࣔʯ w ʮUFTUJOHͰඞཁेʯ w ʮϝϯςอূʯ w ʮπʔϧؒͷ࿈ܞͷऔΓ͢͞ʯ
5FTUJOHGSBNFXPSLT w ͜Ε͘Β͍ͳΒೖΕͯΑ͘ͳ͍ʁͱ͍͏ύοέʔδ w HJUIVCDPNHPPHMFHPDNQ w HJUIVCDPNTUSFUDISUFTUJGZ w 5BCMF%SJWFO5FTUͰͪΌΜͱςετέʔε໊ॻ͍͓͚ͯ ࠔΔ͜ͱগͳ͍ͷͰผʹ͍Βͳ͍͔
5FTUJOHGSBNFXPSLT w ͜Ε͘Β͍ͳΒೖΕͯΑ͘ͳ͍ʁͱ͍͏ύοέʔδ w HJUIVCDPNHPPHMFHPDNQ w HJUIVCDPNTUSFUDISUFTUJGZ w 5BCMF%SJWFO5FTUͰͪΌΜͱςετέʔε໊ॻ͍͓͚ͯ ࠔΔ͜ͱগͳ͍ͷͰผʹ͍Βͳ͍͔
w ݸਓతʹೖΕͳ͍ύοέʔδ w ඞཁेͳͣͷUFTUJOHύοέʔδͷϥούʔ w HPUFTUUPPMT w (P$POWFZ w (PCMJO
ΠϯςάϨʔγϣϯςετͷ
ΠϯςάϨʔγϣϯςετʹඞཁͳ͜ͱ w ࣮ߦڥ w %# DBDIF w 'JYUVSF w ࣌ࠁɾཚݻఆ
w DPOUFYUม w ֎෦"1*ͷ.PDL w "1*SFRSFTͷݕূ
࣮ߦڥͷߏங w %#ɺDBDIFΛͲͷΑ͏ʹཱͯΔ͔ w .PDL͢Δ w σʔϞϯ࣮ߦ w EPDLFSίϯςφΛཱͯΔ
%#पΓͰඞཁͳ࡞ۀ w ςετ࣮ߦ͝ͱʹҎԼͷϑϩʔΛ౿Ή ίωΫγϣϯཱ֬ ςʔϒϧ࡞ Ϛελσʔλద༻
ςετ࣮ߦ ςʔϒϧഁغ ίωΫγϣϯஅ
%#Λ.PDL͢Δͷྑ͍͔ʁ w ͋·ΓϕλʔͰͳ͍ͱࢥ͏ w 42-จ͕ؒҧ͍ͬͯΔ͔Ͳ͏͔ίϯύΠϧ࣌ʹ ؾ͚ͮͳ͍ w αʔυύʔςΟ"1*ͳΒ·ͩ͠ɺ%#ͳΒࣗͰ ڥ͕༻ҙͯ͠ɺҙਤ௨Γ͔Ͳ͏͔ͷݕূ͕ Ͱ͖Δͷ͔ͩΒɺ.PDL͠ͳ͍ํ͕ྑ͍
σʔϞϯ࣮ߦ w HJUIVCDPNMFTUSSBUHPUFTUNZTRME w Կߟ͑ͳͯ͘NZTRME͕࣮ߦͰ͖Δ
ίϯςφ w (PͰ%PDLFSʹଓ͢Δϥούʔ w HJUIVCDPNGTPV[BHPEPDLFSDMJFOU w HJUIVCDPNPSZEPDLFSUFTU w ςετͷͨΊʹ.Z42-3FEJTଓ͕Ͱ͖Δ ྗڧ͍ϥούʔ
w ࣗલͰEPDLFSίϯςφͨͯΔ࣌ʹඞཁͳ ىಈ֬ೝऔΕΔ·Ͱͷ1JOHͳͲΛͬͯ͘ΕΔ
ίϯςφ
γϯϓϧͳଓ %#ͷίωΫγϣϯͳͲɺ DMPTFͷॲཧ͕ඞཁͳ ͷɺ UFBSEPXO༻ͷGVODΛฦ ٫͓͍ͯͯ͠ɺ ࢀর͍ͯ͠ΔؔͰ EFGFSͰ࣮ߦ͢Δͱ ҆શɻ
'JYUVSF w ϢχοτςετͱҟͳΓ༻్͕͍͔ͭ͋͘Δ w SFRSFTݕূ༻ͷQBZMPBE w ࣄલʹ%#ʹೖΕ͓ͯͨ͘Ίͷσʔλ w ڞ௨ͷϚελσʔλ w
ݸผͷςετ༻ʹ༻ҙ͞Εͨσʔλ
SFRSFTݕূ༻ͷQBZMPBE w JOQVUHPMEFOͰQBZMPBEΛ+40/ʹ·ͱΊ͓ͯ͘ w ΫΤϦύϥϝʔλʔඞཁͳΒΓग़͓ͯ͘͠
ςʔϒϧ࡞ɾআ w ςʔϒϧఆ͕ٛΒͭ͘ͱ໘ͳͷͰɺ HJUIVCDPNLLVCVOTRMEFGΛͬͯ ҰݸͷεΩʔϚʹ࠷৽ͷঢ়ଶΛ·ͱΊ͓ͯ͘ͱศར
ςʔϒϧ࡞ɾআ
None
Ϛελσʔλςετ͝ͱͷσʔλ w ݸਓతʹҎԼͷΑ͏ʹɺϚελσʔλͱͦΕҎ֎ Λ͚͍ͯΔ w UFTUEBUBpYUVSFTEFGBVMU w Ϛελσʔλ w UFTUEBUBpYUVSFTPQUJPOBM
w ςετέʔεʹΑͬͯࢀরͨ͠Γ͠ͳ͔ͬͨΓ͢ Δσʔλ
σʔλ࡞
σʔλ࡞
ಛघͳσʔλૠೖ w .Z42- 1PTHSF42-ͳͲͷσʔλૠೖָ w ("&ΛͬͯΔͱ%BUBTUPSFʹ 'JYUVSFΛೖΕͨ͘ͳΔ
None
ETNPDL w 'JYUVSFͷ:".-ఆٛΛࢦఆ͢Εɺࢦఆͷ,JOEͷ σʔλΛྲྀ͠ࠐΊΔ w $MFBOVQ࡞ۀผ్ඞཁ
࣌ࠁɾཚݻఆ w ௨ৗͷςετͱಉ༷ɻϞοΫ༻ͷؔΛఆٛͯ͠ɺ Ϧηοτ༻ͷؔΛSFUVSOͯ͠ྑ͍ɻ
$POUFYUม w DPOUFYU෦ͷΛͬͯॲཧ͢Δ߹ɺUFTU༻ͷDPOUFYUʹ ΛೖΕ͓ͯ͘ඞཁ͕͋Δ w ଟօ͞Μ͕෦Ͱఆ͍ٛͯ͠Δ/FX$POUFYU8JUI999ͳϝ ιουΛݺͿͷྑ͍͕ɺͪΌΜͱϦΫΤετͱͯ͠ ݕূ͢ΔͳΒͤΊͯSFRʹΛૠೖ͓͖͍ͯͨ͠ɻ
֎෦"1*ͷ.PDL w ֎෦"1*͏Ͳ͏͠Α͏ͳ͍ͷͰ.PDL͢Δ w NPDLೖΕͯΔͷʹͬͯͳ͍ͱΤϥʔͰऴྃ͢Δ ͷͰɺNPDL͚ͩॲཧΛڞ௨Խͤͣ ɺݸผͷςε τέʔεͰૠೖ͢Δɻ
.PDLͷίϯτϩʔϥʔੜ
.PDLར༻
"1*SFRSFTͷݕূ w HPMBOHHPBQQFOHJOFͷެࣜύοέʔδʹʑ AUSZAͱ͍͏ϥούʔ͕͋Δɻ w ϦΫΤετݕূςετͷग़ྗ݁ՌͳͲͷݕূ AUSZAͱ͍͏ஆ͔͍͕ؔͬͯ͘Εͯͯɺ ඇৗʹ࣮ͷࢀߟʹͳΔ
SFRSFTΛݕূ͢Δ߹ʜ
None
None
؆ૉ☺
͓·͚
5FTU3VOOFSࣗମͷϥούʔ w ΠϯςάϨʔγϣϯςετͰΔ͜ͱ ͍͍ܾͩͨ·ͬͯΔ w UFTUJOH.Λड͚औΔؔͰϥοϓͯ͋͛͠Δͱ εοΩϦ͢Δ
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