SwiftにおけるMockライブラリの活用/swift-mock-library

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˙:VTVLF)PTPOVNBʢ!UPCJʣ • ॴଐ ⁃ %F/"ɹ48&5άϧʔϓɹςετج൫νʔϜ ⁃ ςετٕज़ͷௐࠪɺࣾ಺πʔϧ։ൃ • 'BWPSJUF ⁃ • ۙگ ⁃ USZ4XJGU"GUFS5BMLTEBZͰൃදʢ4XJGU1.Ͱ࡞Δ$-*ʣ ⁃ ,PUMJOΛ৮͚ͬͯͨͲɺ4XJGUͷྑ͞ʹ΋࠶ͼؾ͖ͮ࢝ΊΔ ⁃ 4XJGUͷ.PDLϥΠϒϥϦʹՄೳੑΛײ͡Δɹˡ͍·͜͜ 8IP Copyright (C) DeNA Co.,Ltd. All Rights Reserved. 2

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Objective-C ࣌୅ 16 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 0CKFDUJWF$ • ಈతϥϯλΠϜʢ0CKFDUJWF$3VOUJNFʣ • .FUIPE4XJ[[MJOH • .FUIPE.JTTJOH ɹɹˠϝλϓϩάϥϛϯάʢࠇຐज़ʣͷ׆༻ • 0$.PDL • 0CKFDUJWF$ʹ͓͚ΔσϑΝΫτϥΠϒϥϦ • ݴޠϥϯλΠϜΛϑϧ׆༻

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Swift ࣌୅ɹংষ 18 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. • 4XJGU • ੩తϥϯλΠϜ • ϦϑϨΫγϣϯ"1*ʢಡΈऔΓઐ༻ʣ • 0CKFDUJWF$ϥϯλΠϜͷ׆༻͸ݶఆత  ˠϝλϓϩάϥϛϯάʢࠇຐज़ʣͷ׆༻ • 0$.PDL • ݴޠϒϦοδͰ࢖༻Ͱ͖Δʢͦͷ༐ؾ͕͋Ε͹ʣ • 0$.PDL͕4XJGUΛ׬શαϙʔτ͢Δ͜ͱ͸ͳ͍ ެࣜ'"2ΑΓҙ༁

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ϓϩμΫτίʔυ 24 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. protocol CockProtocol { func cockRamen(bowls: Int, soup: Soup) -> [Ramen] } enum Soup { case ে༉ case ຯḩ } struct Ramen { var soup: Soup } struct Waiter { let cock: CockProtocol // ґଘΦϒδΣΫτ func order() -> [Ramen] { return cock.cockRamen(bowls: 2, soup: .ে༉) } } ͜ΕΛ.PDLʹ͢Δ

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Mockίʔυ 26 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class MockCock: CockProtocol { var cockRamenCallCount: Int = 0 var cockRamenLastBowls: Int = 0 var cockRamenCallReturn: [Ramen] = [] var cockRamenLastSoup: Soup = .ে༉ func cockRamen(bowls: Int, soup: Soup) -> [Ramen] { // ݺͼग़͠ճ਺ͷه࿥ cockRamenCallCount += 1 // Ҿ਺ͷه࿥ cockRamenLastBowls = bowls cockRamenLastSoup = soup // ೚ҙͷ஋Λฦ͢ return cockRamenCallReturn } } ݺͼग़࣌͠ͷ৘ใΛه࿥ ઃఆ͞Εͨ໭Γ஋Λฦ͢

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୯ମςετίʔυ 28 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } }

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୯ମςετίʔυ 29 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } } ᶃDPDL3BNFO ͕ݺ͹Εͨ࣌ʹ ͜ͷ஋Λฦ͢Α͏ʹઃఆ

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୯ମςετίʔυ 30 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } } ᶄPSEFS ͷݺͼग़݁͠Ռʹ͍ͭͯ ظ଴ͨ݁͠Ռ͔ݕূ

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୯ମςετίʔυ 31 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } } ᶅ$PDLΦϒδΣΫτͷϝιου͕ ҙਤͨ͠௨Γʹݺͼग़͞Ε͔ͨݕূ

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͜Ε͘Β͍ͳΒଥڠ͢Δʁ 33 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class MockCock: CockProtocol { var cockRamenCallCount: Int = 0 var cockRamenLastBowls: Int = 0 var cockRamenCallReturn: [Ramen] = [] var cockRamenLastSoup: Soup = .ে༉ func cockRamen(bowls: Int, soup: Soup) -> [Ramen] { cockRamenCallCount += 1 cockRamenLastBowls = bowls cockRamenLastSoup = soup return cockRamenCallReturn } } class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } }

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͜Ε͘Β͍ͳΒଥڠ͢Δʁ 34 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class MockCock: CockProtocol { var cockRamenCallCount: Int = 0 var cockRamenLastBowls: Int = 0 var cockRamenCallReturn: [Ramen] = [] var cockRamenLastSoup: Soup = .ে༉ func cockRamen(bowls: Int, soup: Soup) -> [Ramen] { cockRamenCallCount += 1 cockRamenLastBowls = bowls cockRamenLastSoup = soup return cockRamenCallReturn } } class WaiterTests: XCTestCase { func test_order() { let mock = MockCock() mock.cockRamenCallReturn = [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)] let results = Waiter(cock: mock).order() XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) XCTAssertEqual(mock.cockRamenCallCount, 1) XCTAssertEqual(mock.cockRamenLastBowls, 2) XCTAssertEqual(mock.cockRamenLastSoup, .ে༉) } } ྫྷ੩ʹߟ͑Δͱ… ɾ1 Protocol ɾ1 Method ͦΕͳͷʹ͜ͷίʔυྔʁ

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Swift ͷ MockϥΠϒϥϦ 38 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ˒ छผ Swift Ұݴ Cuckoo 711 ࣗಈੜ੒ 4.0 ɾMockitoΠϯεύΠΞʢࣅͯΔʣ  ɾSourceKittenΛར༻ SwiftyMocky 301 ʏ 4.0 ɾSwiftyͳAPI  ɾSourceryΛར༻ͯ͠ੜ੒ Mockit 66 αϙʔτܥ 4.0 ɾMockitoΠϯεύΠΞ  ɾ·ͩൃల్্ʁ Dobby 151 ʏ 2.x ɾࠓޙ΋ϝϯς͞Εͳͦ͏ʁ MockFive 201 ʏ 2.x ʏ SwiftMock 223 ʏ 2.x ʏ

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Cuckoo 43 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = MockCockProtocol() stub(mock) { stub in when(stub.cockRamen(bowls: any(), soup: any())) .thenReturn([Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)]) } // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) verify(mock).cockRamen(bowls: equal(to: 2), soup: equal(to: .ে༉)) } ࣗಈੜ੒͞Εͨ.PDL

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Cuckoo 44 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = MockCockProtocol() stub(mock) { stub in when(stub.cockRamen(bowls: any(), soup: any())) .thenReturn([Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)]) } // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) verify(mock).cockRamen(bowls: equal(to: 2), soup: equal(to: .ে༉)) } DPDL3BNFO ͕ݺͼग़͞Εͨ࣌ͷ μϛʔͷ໭Γ஋Λઃఆ DPDL3BNFO ͷݺͼग़͠Ҿ਺͕ ҙਤͨ͠΋ͷ͔ݕূʢWFSJGZʣ

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Cuckoo 45 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = MockCockProtocol() stub(mock) { stub in when(stub.cockRamen(bowls: any(), soup: any())) .thenReturn([Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)]) } // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) verify(mock).cockRamen(bowls: equal(to: 2), soup: equal(to: .ে༉)) } .PDLJUPϥΠΫͳ"1* .BUDIFSΛ࠾༻

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SwiftyMocky 48 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = CockProtocolMock() mock.given(.cockRamen(bowls: .any, soup: .any, willReturn: [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)])) // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) mock.verify(.cockRamen(bowls: .value(2), soup: .value(.ে༉))) } } ࣗಈੜ੒͞Εͨ.PDL

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SwiftyMocky 49 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = CockProtocolMock() mock.given(.cockRamen(bowls: .any, soup: .any, willReturn: [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)])) // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) mock.verify(.cockRamen(bowls: .value(2), soup: .value(.ে༉))) } } DPDL3BNFO ͕ݺͼग़͞Εͨ࣌ͷ μϛʔͷ໭Γ஋Λઃఆ DPDL3BNFO ͷݺͼग़͠Ҿ਺͕ ҙਤͨ͠΋ͷ͔ݕূʢWFSJGZʣ

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SwiftyMocky 50 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class WaiterTests: XCTestCase { func test_order() { // ४උ let mock = CockProtocolMock() mock.given(.cockRamen(bowls: .any, soup: .any, willReturn: [Ramen(soup: .ে༉), Ramen(soup: .ຯḩ)])) // ݺͼग़͠ let results = Waiter(cock: mock).order() // ݕূ XCTAssertEqual(results.count, 2) XCTAssertTrue(results.contains { $0.soup == .ে༉ }) XCTAssertTrue(results.contains { $0.soup == .ຯḩ }) mock.verify(.cockRamen(bowls: .value(2), soup: .value(.ে༉))) } } ิ׬͠΍͍͢ ิ׬͠΍͍͢