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Integration test in Go
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linyows
June 28, 2017
Programming
5
2.5k
Integration test in Go
Geeks Who Drink in Fukuoka -Go Go Golang Edition!- in Nulab at june 28, 2017
linyows
June 28, 2017
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Transcript
5PNPIJTB0EB(.01FQBCP *OD +VOF (FFLT8IP%SJOLJO'VLVPLB (P(P(PMBOH&EJUJPO (PͰΖ͏ʂ ΠϯςάϨʔγϣϯςετ
ϓϦϯγύϧΤϯδχΞ খాԝ!MJOZPXT ٕज़෦ٕज़ج൫νʔϜ IUUQUPNPIJTBPEBDPN
ϒϩάɿIUUQUPNPIJTBPEBDPNQPTUTFBTF@NBOBHFNFOU@PG@MJOVY@TFSWFS@BENJOJTUSBUPSIUNM ࠷ۙ࡞ͬͨ044ͷ͝հ MJOVYϢʔβͷ໊લղܾΛHJUIVCͷUFBNTͰߦ͏
ৄࡉ໌ޙͷ :"1$'VLVPLBલʑࡇͰ ͓͠͠·͢ʂ ⚠શવࡊɺલࡇͷલͷ࣌ؒʹ͋ΔϖύϘඇެࣜΠϕϯτͰ͢
(PΛۀͰ͍ͬͯ·͔͢ʁ ʕ◔ϖ◔ʔ ࣸਅఏڙɿԬࢢ
(PΛۀͰ͍ͬͯ·͔͢ʁ wαʔϏεͷίΞͱ͍ͯͬͯ͠Δ wαʔϏεͷҰ෦ͱ͍ͯͬͯ͠Δ wࣾศརπʔϧͰ͍ͬͯΔ wϓϥΠϕʔτͰ͍ͬͯΔ
(Pͷςετॻ͍ͯ·͢Ͷʁ ʕ◔ϖ◔ʔ … ʕ◔ϖ◔ʔ ࣸਅఏڙɿԬࢢ
ͪΖΜॻ͍ͯ·͢ϤΥʙ ʘશһखΛ͋͛Δʗ
࠷ۙͷ෩ܠ ϧʔςΟϯά͕ແ͍͍ͤͰɺͱ͋ Δ"1*͕ػೳ͍ͯ͠ͳ͔ͬͨɻ ϧʔςΟϯάͷςετΛՃʁ 3FRVFTU%#Λελϒͯ͠"1*Λ ࣮ߦ͢ΔςετΛॻ͘ʁ ͦΕେࣄ
ͦͦ ࠷ऴతͳಈ࡞Λ୲อ͢Δ ςετ͕ͳ͔ͬͨ
ͭ·ΓɺΠϯςάϨʔγϣϯςετ ʢ"1*ͩͱ&OEUP&OEʹ͍͔ۙʣ ࣸਅఏڙɿԬࢢ
લఏ w)551 (P"1* %#Λ౷߹ͨ͠ςετ w(PͷϓϩμΫτͳͷͰ(PͰΓ͍ͨʢ wͦͯ͠γϯϓϧʹUFTUJOHύοέʔδͰ͍ྃͨ͠
ͳΔ΄Ͳʜ؆୯ʹΕ·͢Ͷ func TestFooAPI(t *testing.T) { expectedBody, _ := ioutil.ReadFile(“./testdata/foo/get_res.json”) res,
_ := http.Get(endpoint + “/foo”) gotBody, _ := ioutil.ReadALL(res.Body) res.Body.Close() if gotBody != expectedBody { t.Error(“FooAPI returns wrong body”) } }
Ϛελσʔλ ظ͢ΔϨεϙϯεͷͨΊʹ 4FFEσʔλΛςετ࣮ߦલʹ ೖΕ͓͖͍ͯͨ
5FTU.BJO͕͋Γ·ͯ͠ͶʜॳظԽͱޙॲཧ func TestMain(m *testing.M) { setup() retCode := m.Run() os.Exit(retCode)
} func setup() { db, _ := sql.Open(“postgres”, connInfo) db.Exec("DELETE FROM foo”) db.Exec("INSERT INTO bar(… defer db.Close() } func teardown() { db.Exec("TRUNCATE TABLE foo CASCAD… defer db.Close() }
5FTU.BJOQBDLBHF୯ҐͰDBMM͞ΕΔ /cmd/myapp/main.go /handlers/foo.go foo_test.go main_test.go /models/foo.go foo_test.go main_test.go /integration_test.go
5FTU.BJO ύοέʔδ͝ͱ ͔࣮̍͠ߦ͞Εͳ͍ʜ ຖճॲཧ͍ͨ͠߹ʁ
ςετͷʹࣄલࣄޙॲཧΛ͢Δ func TestFoo(t *testing.T) { defer SetupTeardown(t)() . . .
} func SetupTeardown(t *testing.T) func() { t.Log(“Setup”) return func() { t.Log(“Teardown”) } }
ීஈͷHPUFTUͰ ΠϯςάϨʔγϣϯςετ ࣮ߦ͞Εͳ͍Ͱ΄͍͠
ҾΛ͏
ͨͩ͠ɺͯ͢ͷςετʹذ͕ඞཁ var integration = flag.Bool(“integration”, false, “run integration test”) func
TestMain(m *testing.M) { flag.Parse() if *integration { setup() } retCode := m.Run() if *integration { teardown() } os.Exit(retCode) } func TestIntegration1(t *testing.T) { if !*integration { t.Skip() } . . .
Ϣχοτςετ HPUFTU ΠϯςάϨʔγϣϯςετ HPUFTUJOUFHSBUJPO ͱ͍͏͍͚͕ग़དྷΔ
͋͞ɺ͜ΕͰͲΜͲΜςετॻ͍ͯ ࣭Λ্͍͛ͯͧ͘ʂʂʂ ࣸਅఏڙɿԬࢢ
༨ஊͰ͕͢ ςετͷཻʹ όϥϯε͕͋Γ·͢ͷͰ ͝ҙ͍ͩ͘͞ 6*& (PPHMF5FTUJOH#MPH+VTU4BZ/PUP.PSF&OEUP&OE5FTUT IUUQTUFTUJOHHPPHMFCMPHDPNKVTUTBZOPUPNPSFFOEUPFOEUFTUTIUNM
·ͱΊ wΠϯςάϨʔγϣϯςετखܰʹ͔͚·͢ wҾΛ͑ϢχοτςετͱΠϯςάϨʔγϣϯςετ Λ͚࣮ͯߦͰ͖Δ wύοέʔδ͝ͱ5FTU.BJOͰςετͷࣄલࣄޙॲཧ͕Ͱ͖Δ w֤ςετ͝ͱʹࣄલࣄޙॲཧΛΓ͍ͨ߹ҰߦՃ͢ ΕՄೳ
ݕূͰͬͨίʔυͪ͜Β IUUQTHJUIVCDPNMJOZPXTHPUFTUTFUVQUFBSEPXOTBOECPY
܅ϖύϘͰಇ͔ͳ͍͔ʁ ࠷৽ͷ࠾༻ใΛνΣοΫˠ !QC@SFDSVJU
͋Γ͕ͱ͏͍͟͝·ͨ͠