Spek2+MockK+JaCoCoでイケてる Unit Test環境を手に入れろ！

DroidKaigi 2019 - Day2 Room1 11:20〜
「Spek2+MockK+JaCoCoでイケてる Unit Test環境を手に入れろ！」のセッション資料です

1. 4QFL .PDL, +B$P$PͰΠέͯΔ
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   ʙ ʹ͜͠Γ͞ͿΖʙ
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2. ࣗݾ঺հ w ʹ͜͠Γ͞ͿΖʙ ຊ໊
   ࡔ্੖৴
   w ౦ژ౎ɾҏ౾େౡग़਎
   w גࣜձࣾ#FBS5BJM
   w "OESPJEΤϯδχΞ ,PUMJO+BWB
   w 8FCΤϯδχΞ 3BJMT3FBDU !2
3. ࢓ࣄ w %S8BMMFU ,PUMJOҠߦ࡞ۀதʜ !3
4. ࢓ࣄ w %Sܦඅਫ਼ࢉ ϑϧ,PUMJOʂ
   .PDL,4QFL
   ಋೖࡁΈʂ !4
5. ໨࣍  ͜Ε·Ͱͷ6OJU
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    ,PUMJO੡ϑϨʔϜϫʔΫϥΠϒϥϦͷ঺հ
   w .PDL,
   ϞοΫϥΠϒϥϦ
   w 4QFL
   ςετϑϨʔϜϫʔΫ
    ,PUMJOϑϨϯυϦʔͳ6OJU
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   w .PDL,ɾ4QFLͷಋೖ
   w +B$P$PΛ࢖ͬͨίʔυΧόϨοδࢉग़ !5
6. ର৅ w ॳΊͯ"OESPJE։ൃͰ6OJU
   5FTUΛॻ͜͏ͱ͍ͯ͠Δਓ
   w +BWB੡ϥΠϒϥϦͰͷςετʹർΕͨਓ !6
7. 
   ͜Ε·Ͱͷ6OJU
   5FTU !7
8. ,PUMJOਖ਼ࣜαϙʔτલ w .PDLJUP
   ϞοΫϥΠϒϥϦ
   w W
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   w ཉ͍͠ػೳ͸େମἧ͍ͬͯΔ
   w ৘ใ͕๛෋
   w ,PUMJO༻ϥούʔϥΠϒϥϦ΋ΞϦ
   w .PDLJUP,PUMJO ೥݄ʙ !8
9. w +6OJU
   ςετϑϨʔϜϫʔΫ
   w "OESPJEϓϩδΣΫτͰͷσϑΥϧτͷϑϨʔϜϫʔΫ
   w BOOPUBUJPOͰςετϝιουΛࢦఆ ,PUMJOਖ਼ࣜαϙʔτલ !9
10. ,PUMJOਖ਼ࣜαϙʔτલ w ϞοΫϥΠϒϥϦˠ.PDLJUP
    w ϢχοτςετϑϨʔϜϫʔΫˠ+6OJU
    w ͲͪΒ΋+BWB੡
    w ,PUMJOରԠ͕ෆे෼
    w ,PUMJOͷݴޠ࢓༷Λ׆͔͖͠Εͳ͍ !10
11. ,PUMJOਖ਼ࣜαϙʔτ !(PPHMF
    *0
     !11
12. ೥൒ޙʜ w ,PUMJO੡ϥΠϒϥϦϑϨʔϜϫʔΫ
    w ,PUMJOͷݴޠ࢓༷Λϑϧʹ׆͔ͤΔʂ
    w ʮ+BWB͔Βݟͨ࣌͜ͷίʔυͲ͏ͳΔΜ͚ͩͬʯˠগͳ͘ͳΔ
    w ςετॻ࣌͘ʹߟ͑Δ΂͖͜ͱ͕ݮΔˠܧଓੑͷ͋Δςετ
    w ҆৺ͯ͠࢖͑Δʂ
    w ৘ใ͕૿͖͑ͯͨʂ ,PUMJO੡ϥΠϒϥϦϑϨʔϜϫʔΫ
    ಋೖͷ޷ػʂ !12
13. 
    ,PUMJO੡
    ϑϨʔϜϫʔΫϥΠϒϥϦͷ঺հ !13
14. .PDL, w ϞοΫϥΠϒϥϦ
    w ,PUMJOಠࣗͷݴޠ࢓༷Λ໢ཏ
    w 6OJU
    5FTU*OTUSVNFOUFE
    5FTU྆ରԠ
    w %SPJE,BJHJ
    ެࣜΞϓϦͰ΋ར༻ (JUIVC
    NPDLLNPDLL !14
15. Ͱ͖Δ͜ͱ w ελϒ
    w ϝιουͷฦΓ஋ͷࠩ͠ସ͑
    w ϞοΫ
    w ϝιουͷҾ਺ɺݺ͹Εͨճ਺ɺฦΓ஋ͷݕূ
    w ϝιου಺ͷॲཧ͸ಈ࡞͠ͳ͍
    w εύΠ
    w ϝιουͷҾ਺ɺݺ͹Εͨճ਺ɺฦΓ஋ͷݕূ
    w ϝιου಺ͷॲཧ͕࣮ࡍʹಈ࡞͢Δ ৄ͘͠͸
    "OESPJEςετશॻͰʜ !15
16. NPDLL5ϝιου 1 val car = mockk<Car>() 2 3 every { car.drive(Direction.NORTH) } returns Outcome.OK 4 5 car.drive(Direction.NORTH) // returns OK 6 7 verify(exactly = 1) { car.drive(Direction.NORTH) } 8 9 confirmVerified(car) !16
17. NPDLL5ϝιου 1 val car = mockk<Car>() 2 3 every { car.drive(Direction.NORTH) } returns Outcome.OK 4 5 car.drive(Direction.NORTH) // returns OK 6 7 verify(exactly = 1) { car.drive(Direction.NORTH) } 8 9 confirmVerified(car) NPDLL5 ϝιου
    
    $BSܕͷϞοΫΠϯελϯεΛ࡞੒ !17
18. NPDLL5ϝιου 1 val car = mockk<Car>() 2 3 every { car.drive(Direction.NORTH) } returns Outcome.OK 4 5 car.drive(Direction.NORTH) // returns OK 6 7 verify(exactly = 1) { car.drive(Direction.NORTH) } 8 9 confirmVerified(car) FWFSZ
    \
    ʜ
    ^ϝιου
    
    ϞοΫʹϝιουͱҾ਺ɺฦΓ஋Λڭ͑ࠐΉ
    
    
    
    
    ESJWFϝιου಺ͷ࣮ࡍͷॲཧ͸ಈ࡞͠ͳ͍ !18
19. NPDLL5ϝιου 1 val car = mockk<Car>() 2 3 every { car.drive(Direction.NORTH) } returns Outcome.OK 4 5 car.drive(Direction.NORTH) // returns OK 6 7 verify(exactly = 1) { car.drive(Direction.NORTH) } 8 9 confirmVerified(car) DBSʹ
    wʮ%JSFDUJPO/035)ʯΛҾ਺ʹड͚
    wʮ0VUDPNF0,ʯΛฦ͢
    wʮESJWFʯϝιου͕͋Δɹ
    
    
    ͜ͱΛڭ͑ࠐΉ !19
20. NPDLL5ϝιου 1 val car = mockk<Car>() 2 3 every { car.drive(Direction.NORTH) } returns Outcome.OK 4 5 car.drive(Direction.NORTH) // returns OK 6 7 verify(exactly = 1) { car.drive(Direction.NORTH) } 8 9 confirmVerified(car) WFSJGZ
    \
    ʜ
    ^ϝιου
    
    WFSJGZ಺ͷϝιου͕ݺ͹Εͨ͜ͱΛνΣοΫ
    
    Ҿ਺FYBDUMZʹݺ͹ΕΔճ਺ΛࢦఆͰ͖Δ !20
21. TQZL5ϝιου 1 val car = spyk(Car()) 2 3 car.drive(Direction.NORTH) 4 5 verify { car.drive(Direction.NORTH) } 6 7 confirmVerified(car) !21
22. TQZL5ϝιου 1 val car = spyk(Car()) 2 3 car.drive(Direction.NORTH) 4 5 verify { car.drive(Direction.NORTH) } 6 7 confirmVerified(car) TQZL5 ϝιου
    
    $BSܕͷεύΠΠϯελϯεΛ࡞੒ !22
23. TQZL5ϝιου 1 val car = spyk(Car()) 2 3 car.drive(Direction.NORTH) 4 5 verify { car.drive(Direction.NORTH) } 6 7 confirmVerified(car) WFSJGZ
    \
    ʜ
    ^ϝιου
    
    WFSJGZ಺ͷϝιου͕ݺ͹Εͨ͜ͱΛνΣοΫ
    
    
    
    
    ESJWFϝιου಺ͷॲཧ͕࣮ࡍʹಈ࡞͢Δ !23
24. 1 val car = mockk<Car>() 2 3 // any(): ͋ΒΏΔ1ͭͷҾ਺ʹϚον 4 every { car.drive(any()) } return Outcome.OK 5 6 // isNull(inverse = true): nullͰͳ͍1ͭͷҾ਺ʹϚον 7 every { car.drive(isNull(inverse = true)) } return Outcome.OK 8 9 // eq(value): Ҿ਺͕valueͱҰக͢Δ࣌Ϛον(deep equals) 10 every { car.drive(eq(Direction.NORTH)) } return Outcome.OK 11 12 // ofType(kClass): Ҿ਺ͷܕ͕kClassͱҰக͢Δ࣌ʹϚον 13 every { car.drive(ofType(String::class)) } return Outcome.OK 14 Ϛονϟʔ
    Ҿ਺΍ฦΓ஋ͷݕূʹ࢖͏ϝιου BOE
    NPSFʜ !24
25. ϞοΫ΋εύΠ΋Ϛονϟʔ΋.PDLJUPʹ͋ΔΑʁʁʁ !25
26. .PDLJUPͷ໰୊఺  w 'JOBMͳΫϥεϝιου͕ϞοΫͰ͖ͳ͍ʂ
    w ,PUMJOͷΫϥεϝιου͸σϑΥϧτͰ'JOBM
    w ճආࡦ
    LPUMJOBMMPQFOϓϥάΠϯ CZ
    +FU#SBJOT
    w BOOPUBUJPO͚ͭΔͱPQFOʹͯ͘͠ΕΔɹ ڧҾͩͳʜ
    w ςετͷͨΊʹຊ൪ίʔυ΁ͷ༨ܭͳهड़͕૿͑Δ !26
27. .PDLJUPͷ໰୊఺  w 4UBUJDͳϝιου͕ϞοΫͰ͖ͳ͍ʂ
    w ֦ுؔ਺ɹγϯάϧτϯΦϒδΣΫτ
    w ճආࡦ
    1PXFS.PDL
    w 4UBUJDϝιουɺQSJWBUFϝιουͷϞοΫ͕Ͱ͖Δ
    w Θ͟Θ͟ผϥΠϒϥϦΛಋೖ͢Δ͜ͱ͕ඍົ !27
28. .PDL,ͷڧΈ w ,PUMJOͷΫϥεϝιουΛ΄΅ԿͰ΋ϞοΫͰ͖ͯ͠·͏ʂ
    w 'JOBMͳΫϥεϝιου
    w γϯάϧτϯΦϒδΣΫτ
    w ֦ுؔ਺
    w QSJWBUFϝιου
    w TVTQFOEϝιου
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    FUD !28
29. γϯάϧτϯΦϒδΣΫτ 1 object MockObj { 2 fun add(a: Int, b: Int) = a + b 3 } 4 5 mockkObject(MockObj) 6 7 assertEquals(3, MockObj.add(1, 2)) 8 9 every { MockObj.add(1, 2) } returns 55 10 11 assertEquals(55, MockObj.add(1, 2)) !29
30. γϯάϧτϯΦϒδΣΫτ 1 object MockObj { 2 fun add(a: Int, b: Int) = a + b 3 } 4 5 mockkObject(MockObj) 6 7 assertEquals(3, MockObj.add(1, 2)) 8 9 every { MockObj.add(1, 2) } returns 55 10 11 assertEquals(55, MockObj.add(1, 2)) !30
31. γϯάϧτϯΦϒδΣΫτ 1 object MockObj { 2 fun add(a: Int, b: Int) = a + b 3 } 4 5 mockkObject(MockObj) 6 7 assertEquals(3, MockObj.add(1, 2)) 8 9 every { MockObj.add(1, 2) } returns 55 10 11 assertEquals(55, MockObj.add(1, 2)) !31
32. 1 // ϞοΫର৅ͷ֦ுؔ਺(File.ktʹ࣮૷͞Ε͍ͯΔͱԾఆ) 2 fun File.extension() = absolutePath.split(“.”).last() 3 4 // ύοέʔδ໊ʮpkg.exampleʯ 5 mockkStatic(“pkg.example.FileKt”) 6 7 every { File(“test.txt”).extension() } returns “txt" 8 9 assertEquals(“txt”, File(“test.txt").extension()) 10 11 verify { File(“test.txt”).extension() } ֦ுؔ਺ !32
33. 1 // ϞοΫର৅ͷ֦ுؔ਺(File.ktʹ࣮૷͞Ε͍ͯΔͱԾఆ) 2 fun File.extension() = absolutePath.split(“.”).last() 3 4 // ύοέʔδ໊ʮpkg.exampleʯ 5 mockkStatic(“pkg.example.FileKt”) 6 7 every { File(“test.txt”).extension() } returns “txt" 8 9 assertEquals(“txt”, File(“test.txt").extension()) 10 11 verify { File(“test.txt”).extension() } ֦ுؔ਺ NPDLL4UBUJDʹόΠτίʔυม׵ޙͷ
    ֦ுؔ਺ͷύεΛ౉͢
    ˞5PPMT
    
    ,PUMJO
    
    4IPX
    ,PUMJO
    #ZUFDPEF !33
34. 1 // ϞοΫର৅ͷ֦ுؔ਺(File.ktʹ࣮૷͞Ε͍ͯΔͱԾఆ) 2 fun File.extension() = absolutePath.split(“.”).last() 3 4 // ύοέʔδ໊ʮpkg.exampleʯ 5 mockkStatic(“pkg.example.FileKt”) 6 7 every { File(“test.txt”).extension() } returns “txt" 8 9 assertEquals(“txt”, File(“test.txt").extension()) 10 11 verify { File(“test.txt”).extension() } ֦ுؔ਺ !34
35. ͦͷଞʹ΋༷ʑͳϝιου͕༻ҙ
    ˠ.PDL,ͷ3&"%.& IUUQTNPDLLJP Λࢀর !35
36. 4QFL w ςετϑϨʔϜϫʔΫ
    w 3VCZͷ34QFDͱࣅͨจ๏
    w +6OJU্Ͱಈ࡞
    w 6OJU
    5FTUͷΈରԠ
    w 3PCPMFDUSJD΋ඇରԠ *TTVFʹ͸্͕͍ͬͯΔ
    w Wਖ਼ࣜϦϦʔε ೔લ (JUIVC
    TQFLGSBNFXPSLTQFL ˞3PPN
    ʙͷ
    ɹηογϣϯͰ΋঺հ W !36
37. 4QFL֎؍ w ྫ
    +40/Λ%PNBJO
    0CKFDUʹม׵͢Δ֦ுؔ਺ͷ6OJU
    5FTU 1 // JSONΛද͢Ϋϥε 2 data class PersonJson(val name: String, val sex: String) 3 4 // Domain Object 5 interface Person 6 7 data class Male(val name: String): Person 8 9 data class Female(val name: String): Person 10 11 // ςετର৅ͷ֦ுؔ਺ 12 fun PersonJson.toPerson(): Person = … !37
38. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } !38
39. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } 4QFLΫϥεΛܧঝͨ͠γϯάϧτϯΦϒδΣΫτ಺ʹ
    ςετέʔεΛهड़ !39
40. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } w1FSTPO+TPOUP1FSTPOϝιου͕
    wTFY
    
    NBMFͷ࣌
    wਖ਼͍͠1FSTPOΠϯελϯεΛฦ͔͢Ͳ͏͔ !40
41. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } EFTDSJCFDPOUFYUΛೖΕࢠʹ૊Έ
    ςετର৅ɾ৚݅౳Λهड़͢Δ
    EFTDSJCF
    ςετର৅
    DPOUFYU
    ςετ৚݅
    
    
    
    
    Λॻ͘͜ͱ͕ଟ͍ !41
42. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } ֤EFTDSJCFDPOUFYUϒϩοΫ಺ͷςετ͕૸Δલʹ
    ࣮ߦ͍ͨ͠ॲཧΛCFGPSF&BDI5FTUʹهड़ !42
43. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } JUϒϩοΫ಺ʹςετέʔεΛهड़
    దٓΞαʔγϣϯϝιουΛ࢖ͬͯ஋ͷνΣοΫ !43
44. 1 @RunWith(JUnitPlatform::class) 2 object EntryFormMapperSpec : Spek({ 3 describe("PersonJson#toPerson") { 4 lateinit var json: PersonJson 5 6 beforeEachTest { 7 mockkStatic(“example.PersonJsonKt") 8 } 9 10 context("when sex is male”) { 11 beforeEachTest { 12 json = mockk<PersonJson>(“json1”).also { 13 every { it.toPerson() } returns mockk<Male>() 14 } 15 } 16 17 it("should return Male instance") { 18 assertTrue(json.toPerson() is Male) 19 } 20 } 21 … 22 afterEachTest { 23 unmockkStatic(“example.PersonJsonKt") 24 } 25 } 26 } ֤EFTDSJCFDPOUFYUϒϩοΫ಺ͷςετ͕૸ͬͨޙʹ
    ࣮ߦ͍ͨ͠ॲཧΛBGUFS&BDI5FTUʹهड़ !44
45. +6OJUͱͷൺֱ w +6OJU
    w BOOPUBUJPOͰςετϝιουΛࢦఆ
    
    ϘΠϥʔϓϨʔτͷ૿Ճ
    w 4QFL
    w EFTDSJCFDPOUFYUJU
    
    ࢓༷ॻͱͯ͠ಡΈ΍͍͢ɺৼΔ෣͍ۦಈ
    w BOOPUBUJPOෆཁ
    
    ༨ܭͳهड़͕গͳ͘ɺ࡞ۀίετΛݮΒͤΔ
    w +6OJUલఏɺ3PCPMFDUSJDະରԠ
    
    ྆ํͱ΋ղܾ͞ΕͨΒ˕ !45
46. 
    ,PUMJOϑϨϯυϦʔͳ
    6OJU
    5FTU؀ڥͷߏங !46
47. ؀ڥߏஙͷྲྀΕ  ϞοΫϥΠϒϥϦಋೖ .PDL,
     ςετϑϨʔϜϫʔΫಋೖ 4QFL
     ΧόϨοδܭଌϥΠϒϥϦಋೖ +B$P$P !47
48. .PDL,ಋೖ w EFQFOEFODJFTʹߦ௥Ճɺ͜Ε͚ͩ 1 testImplementation “io.mockk:mockk:1.9” 2 3 // or 4 5 androidTestImplementation “io.mockk:mockk:1.9” !48
49. 4QFLಋೖ w ΍Δ΂͖͜ͱ͕͍͔ͭ͋͘Δ ϋϚΓϙΠϯτ
    w "OESPJEϓϩδΣΫτ্Ͱ+6OJUΛಈ͔͢(SBEMF
    1MVHJOಋೖ
    w 4QFLͷςετΤϯδϯΛ(SBEMFʹࢦఆ
    w +6OJUͷςετͱͷڞଘઃఆ !49
50. 4QFLಋೖ w BOESPJEKVOJUͷಋೖ
    w (JUIVC
    NBOOPEFSNBVTBOESPJEKVOJU buile.gradle 1 buildscript { 2 dependencies { 3 classpath "de.mannodermaus.gradle.plugins:android-junit5:1.3.2.0" 4 } 5 } app/build.gradle 1 apply plugin: “de.mannodermaus.android-junit5” !50
51. 4QFLಋೖ w EFQFOEFODJFTʹ4QFLͷґଘؔ܎௥Ճ
    w W
    
    WͰจ๏͕େ͖͘มΘ͍ͬͯΔ app/build.gradle 1 repositories { 2 … 3 maven { url "https://dl.bintray.com/spekframework/spek-dev" } 4 } 5 6 dependencies { 7 testImplementation “org.spekframework.spek2:spek-dsl-jvm:2.0.0” 8 testImplementation “org.spekframework.spek2:spek-runner-junit5:2.0.0“ 9 // JUnit4ͷςετΛ࣮ߦ͢ΔͨΊʹඞཁ 10 testImplementation “junit:junit:4.12” 11 testImplementation “org.junit.vintage:junit-vintage-engine:5.2.0” 12 } !51
52. 4QFLಋೖ w +6OJU1MBUGPSNʹʮTQFLʯʮKVOJUWJOUBHFʯΛ௥Ճ
    w KVOJUWJOUBHF
    +6OJU্Ͱ+6OJUͷςετΛ࣮ߦ͢ΔΤϯδϯ
    w 3PCPMFDUSJDΛ࢖͍͍ͨ৔߹ɺ+6OJUͰॻ͘ඞཁ͕͋ΔͨΊ 1 android { 2 testOptions.junitPlatform { 3 filters { 4 engine.include “spek2”, “junit-vintage" 5 } 6 } 7 } !52
53. 4QFLಋೖ ʮTQFLʯͱʮ+6OJU
    7JOUBHFʯͰςετ͕࣮ߦ͞ΕΔ w ʮTQFLʯͱʮ+6OJU
    7JOUBHFʯͰςετ͕࣮ߦ͞ΕΔ !53
54. +B$P$Pಋೖ w +B$P$P
    ίʔυΧόϨοδܭଌϥΠϒϥϦ
    w +BWB੡
    w ίʔυΧόϨοδΛ9.-ɾ)5.-ܗࣜͰՄࢹԽ
    w .PDL,ɾ4QFLͲͪΒ΋ରԠ !54
55. )5.-ग़ྗ !55
56. $PEFDPWͱ࿈ܞ !56
57. $PEFDPWͱ࿈ܞ !57
58. +B$P$Pಋೖ w (SBEMFλεΫͷ࡞੒͕ඞཁ
    w ΧόϨοδϨϙʔτ࡞੒λεΫ
    w ΧόϨοδϨϙʔτूܭλεΫ
    w ϚϧνϞδϡʔϧϓϩδΣΫτͰ͸ඞਢ !58
59. ΧόϨοδϨϙʔτ࡞੒ w ΍Δ͜ͱ
    w ΧόϨοδର৅ϑΝΠϧͷࢦఆ
    w ϨϙʔτϑΝΠϧͷग़ྗܗࣜͷࢦఆ
    w ϨϙʔτϑΝΠϧͷग़ྗઌͷࢦఆ
    w Ϩϙʔτ࡞੒Λ6OJU
    5FTUͷλεΫ͕ऴΘͬͨ௚ޙʹߦ͏ !59
60. 1 apply plugin: “jacoco” 2 3 jacoco { 4 toolVersion = “0.8.1” 5 } 6 7 def excludeFiles = [ /* ूܭ͔Βআ֎͍ͨ͠ϑΝΠϧ໊ */ ] 8 9 task jacocoTestReports(type: JacocoReport, dependsOn: “testDebugUnitTest”) { 10 group = “Reporting” 11 description = “Generate Jacoco coverage reports for the build.” 12 13 classDirectories = files( 14 fileTree( 15 dir: “${buildDir}/tmp/kotlin-classes/debug”, 16 excludes: excludeFiles 17 ) 18 ) 19 sourceDirectories = files([“${buildDir}/src/main/kotlin”]) 20 21 reports { 22 xml.enabled true 23 html.enabled true 24 csv.enabled false 25 26 xml.destination file(“${buildDir}/reports/jacoco/report.xml”) 27 html.destination file(“${buildDir}/reports/jacoco/html”) 28 } 29 } !60
61. 9 task jacocoTestReports(type: JacocoReport, dependsOn: “testDebugUnitTest”) { 10 group = “Reporting” 11 description = “Generate Jacoco coverage reports for the build.” 12 13 classDirectories = files( 14 fileTree( 15 dir: “${buildDir}/tmp/kotlin-classes/debug”, 16 excludes: excludeFiles 17 ) 18 ) 19 sourceDirectories = files([“${buildDir}/src/main/kotlin”]) 20 21 reports { 22 xml.enabled true 23 html.enabled true 24 csv.enabled false 25 26 xml.destination file(“${buildDir}/reports/jacoco/report.xml”) 27 html.destination file(“${buildDir}/reports/jacoco/html”) 28 } 29 } UZQFΛʮ+BDPDP3FQPSUʯʹࢦఆ͠ɺλεΫΛએݴ
    EFQFOET0OʹʮUFTU%FCVH6OJU5FTUʯΛࢦఆ͠ɺ
    6OJU
    5FTUλεΫͷޙʹϨϙʔτ࡞੒͕࣮ߦ͞ΕΔΑ͏ʹ͢Δ !61
62. 9 task jacocoTestReports(type: JacocoReport, dependsOn: “testDebugUnitTest”) { 10 group = “Reporting” 11 description = “Generate Jacoco coverage reports for the build.” 12 13 classDirectories = files( 14 fileTree( 15 dir: “${buildDir}/tmp/kotlin-classes/debug”, 16 excludes: excludeFiles 17 ) 18 ) 19 sourceDirectories = files([“${buildDir}/src/main/kotlin”]) 20 21 reports { 22 xml.enabled true 23 html.enabled true 24 csv.enabled false 25 26 xml.destination file(“${buildDir}/reports/jacoco/report.xml”) 27 html.destination file(“${buildDir}/reports/jacoco/html”) 28 } 29 } ΧόϨοδର৅ͷϑΝΠϧɾΫϥεΛࢦఆ
    ˞আ֎͢ΔϑΝΠϧͷྫ
    
    3DMBTT
    #VJME$POpH
     5FTU 
     %BHHFS $PNQPOFOU 
     .PEVMF !62
63. 9 task jacocoTestReports(type: JacocoReport, dependsOn: “testDebugUnitTest”) { 10 group = “Reporting” 11 description = “Generate Jacoco coverage reports for the build.” 12 13 classDirectories = files( 14 fileTree( 15 dir: “${buildDir}/tmp/kotlin-classes/debug”, 16 excludes: excludeFiles 17 ) 18 ) 19 sourceDirectories = files([“${buildDir}/src/main/kotlin”]) 20 21 reports { 22 xml.enabled true 23 html.enabled true 24 csv.enabled false 25 26 xml.destination file(“${buildDir}/reports/jacoco/report.xml”) 27 html.destination file(“${buildDir}/reports/jacoco/html”) 28 } 29 } Ϩϙʔτͷग़ྗܗࣜɾग़ྗઌͷࢦఆ !63
64. ΧόϨοδϨϙʔτूܭ w ϞδϡʔϧຖʹΧόϨοδܭଌ͕࣮ߦ͞ΕΔ
    w ܭଌ݁ՌͷϑΝΠϧ͕෼ࢄͯ͠͠·͏ˠूܭλεΫͰ·ͱΊΔ
    w ΍Δ͜ͱ
    w ΧόϨοδܭଌΛ6OJU
    5FTUޙʹ࣮ߦ͢ΔΑ͏ࢦఆ Ϟδϡʔϧຖ
    w ֤ϞδϡʔϧͷΧόϨοδର৅ϑΝΠϧɺΧόϨοδܭଌ݁ՌΛ·ͱΊɺ Ϩϙʔτ࡞੒λεΫʹ౉͢ !64
65. 1 task jacocoMergeReports(type: JacocoMerge) { 2 group = "Reporting" 3 description = "Merge all JaCoCo reports from projects into one." 4 5 gradle.afterProject { p, state -> 6 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 7 dependsOn "${p.path}:testDebugUnitTest" 8 executionData "${p.buildDir}/jacoco/testDebugUnitTest.exec" 9 } 10 } 11 } !65
66. 1 task jacocoMergeReports(type: JacocoMerge) { 2 group = "Reporting" 3 description = "Merge all JaCoCo reports from projects into one." 4 5 gradle.afterProject { p, state -> 6 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 7 dependsOn "${p.path}:testDebugUnitTest" 8 executionData "${p.buildDir}/jacoco/testDebugUnitTest.exec" 9 } 10 } 11 } UZQFΛʮ+BDPDP.FSHFʯʹࢦఆ͠ɺλεΫΛએݴ !66
67. 1 task jacocoMergeReports(type: JacocoMerge) { 2 group = "Reporting" 3 description = "Merge all JaCoCo reports from projects into one." 4 5 gradle.afterProject { p, state -> 6 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 7 dependsOn "${p.path}:testDebugUnitTest" 8 executionData "${p.buildDir}/jacoco/testDebugUnitTest.exec" 9 } 10 } 11 } ֤Ϟδϡʔϧͷ6OJU
    5FTUλεΫऴྃޙʹ
    ϨϙʔτܭଌλεΫ͕࣮ߦ͞ΕΔΑ͏ʹࢦఆ !67
68. 1 task jacocoMergeReports(type: JacocoMerge) { 2 group = "Reporting" 3 description = "Merge all JaCoCo reports from projects into one." 4 5 gradle.afterProject { p, state -> 6 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 7 dependsOn "${p.path}:testDebugUnitTest" 8 executionData "${p.buildDir}/jacoco/testDebugUnitTest.exec" 9 } 10 } 11 } ֤ϞδϡʔϧͷΧόϨοδܭଌ݁ՌͷύεΛ౉͢
    ˠ౉ͨ͠ܭଌ݁Ռ͕࠷ޙʹϚʔδ͞ΕΔ !68
69. 1 task jacocoMergeReports(type: JacocoMerge) { 2 group = "Reporting" 3 description = "Merge all JaCoCo reports from projects into one." 4 5 gradle.afterProject { p, state -> 6 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 7 dependsOn "${p.path}:testDebugUnitTest" 8 executionData "${p.buildDir}/jacoco/testDebugUnitTest.exec" 9 } 10 } 11 } ʮBQQMZ
    QMVHJO
    KBDPDPʯ͕༗ޮͳϞδϡʔϧͷΈ࣮ߦ !69
70. 1 task jacocoTestReports(type: JacocoReport, dependsOn: "jacocoMergeReports") { 2 … 3 4 // [before] 5 // classDirectories = … 6 // sourceDirectories = … 7 8 executionData jacocoMergeReports.destinationFile 9 10 sourceDirectories = files() 11 classDirectories = files() 12 13 gradle.afterProject { p, state -> 14 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 15 classDirectories = classDirectories + files([ 16 fileTree( 17 dir: “${p.buildDir}/tmp/kotlin-classes/release", 18 excludes: excludeFiles 19 ) 20 ]) 21 sourceDirectories = sourceDirectories + files([ 22 "${p.buildDir}/src/main/kotlin" 23 ]) 24 } 25 26 } 27 28 … 29 } Ұ෦ൈਮ
    λεΫϑΝΠϧશମ͸IUUQCJUMZ)DE(9+ !70
71. 1 task jacocoTestReports(type: JacocoReport, dependsOn: "jacocoMergeReports") { 2 … 3 4 // [before] 5 // classDirectories = … 6 // sourceDirectories = … 7 8 executionData jacocoMergeReports.destinationFile 9 10 sourceDirectories = files() 11 classDirectories = files() 12 13 gradle.afterProject { p, state -> 14 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 15 classDirectories = classDirectories + files([ 16 fileTree( 17 dir: “${p.buildDir}/tmp/kotlin-classes/release", 18 excludes: excludeFiles 19 ) 20 ]) 21 sourceDirectories = sourceDirectories + files([ 22 "${p.buildDir}/src/main/kotlin" ΧόϨοδूܭλεΫͷ௚ޙʹϨϙʔτ࡞੒͕
    ࣮ߦ͞ΕΔΑ͏ʹ͢Δ !71
72. ΧόϨοδूܭλεΫͷ௚ޙʹϨϙʔτ࡞੒͕
    ࣮ߦ͞ΕΔΑ͏ʹ͢Δ 5 // classDirectories = … 6 // sourceDirectories = … 7 8 executionData jacocoMergeReports.destinationFile 9 10 sourceDirectories = files() 11 classDirectories = files() 12 13 gradle.afterProject { p, state -> 14 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 15 classDirectories = classDirectories + files([ 16 fileTree( 17 dir: “${p.buildDir}/tmp/kotlin-classes/release", 18 excludes: excludeFiles 19 ) 20 ]) 21 sourceDirectories = sourceDirectories + files([ 22 "${p.buildDir}/src/main/kotlin" 23 ]) 24 } 25 26 } 27 ΧόϨοδूܭλεΫʹ౉͞Ε֤ͨϞδϡʔϧͷ
    ܭଌ݁ՌͷύεΛ౉͢ !72
73. ΧόϨοδूܭλεΫͷ௚ޙʹϨϙʔτ࡞੒͕
    ࣮ߦ͞ΕΔΑ͏ʹ͢Δ 5 // classDirectories = … 6 // sourceDirectories = … 7 8 executionData jacocoMergeReports.destinationFile 9 10 sourceDirectories = files() 11 classDirectories = files() 12 13 gradle.afterProject { p, state -> 14 if (p.rootProject != p && p.plugins.hasPlugin("jacoco")) { 15 classDirectories = classDirectories + files([ 16 fileTree( 17 dir: “${p.buildDir}/tmp/kotlin-classes/release", 18 excludes: excludeFiles 19 ) 20 ]) 21 sourceDirectories = sourceDirectories + files([ 22 "${p.buildDir}/src/main/kotlin" 23 ]) 24 } 25 26 } 27 ֤Ϟδϡʔϧʹ෼ࢄ͍ͯ͠Δ
    ΧόϨοδର৅ΫϥεɾϑΝΠϧΛࢦఆ !73
74. λεΫ࣮ߦ ΧόϨοδϨϙʔτ͕ग़ྗ
    
    )5.-ϑΝΠϧͰ֬ೝ
    
    9.-ϑΝΠϧΛ֤छΧόϨοδऔಘαʔϏεʹQPTU $ ./gradlew jacocoTestReport ؀ڥߏஙऴྃʂ
    ͓ർΕ༷Ͱ͢ʂ !74
75. ·ͱΊ w .PDL,
    w ,PUMJOͰඞཁͱ͞ΕΔϞοΫ༻ϝιουΛ޿͘Χόʔ
    w ಋೖ΋؆୯ɺطଘͷςετίʔυͷதͰ΋ؾܰʹѻ͑Δ
    w 4QFL
    w ༨ܭͳهड़͕ݮΓɺ࢓༷ॻͱͯ͠΋ݟ΍͍͢ܗͰॻ͚Δ
    w 3PCPMFDUSJDରԠɺ"OESPJEϓϩδΣΫτͰͷ+6OJUରԠ͕଴ͨΕΔ !75
76. ·ͱΊ ,PUMJOϑϨϯυϦʔͳ6OJU
    5FTU؀ڥͰ
    ܧଓੑͷߴ͍ςετΛ࣮ݱ͠·͠ΐ͏ʂ !76
77. એ఻ גࣜձࣾ#FBS5BJMɹΤϯδχΞืूதʂ
    ৬छ
    w "OESPJEΤϯδχΞ ,PUMJO+BWB
    w J04ΤϯδχΞ 4XJGU0CKFDUJWF$
    w 8FCΤϯδχΞ 3VCZ
    PO
    3BJMT3FBDU
    3FEVY
    ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠N @
    @ N ձࣾ঺հࢿྉ
    IUUQCJUMZ".V"* !77