ソースコードから読み解く - Quick はどのように実装されているのか？/quick-code-reading

by Yusuke Hosonuma

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11 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } }

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12 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ςετߏ଄Խͱͯ͠ͷ2VJDL

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13 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } Ξαʔγϣϯͱͯ͠ͷ/JNCMF

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34 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } }

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35 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ࠓճͷαϯϓϧͷ4QFD

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36 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } Ͳ͔͜Βݺ͹Ε͍ͯΔ͔ʁ

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37 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. import XCTest import Quick import Nimble class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ਌ΫϥεΛݟͯΈΔ

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39 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. #import @interface QuickSpec : XCTestCase - (void)spec; @property (class, nonatomic, readonly) QuickSpec *current; @end QuickSpec.h ͍͖ͳΓ Objective-C ʂ Ͱ΋ɺ਺গͳ͍͏ͪͷ1ιʔε

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40 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.h #import @interface QuickSpec : XCTestCase - (void)spec; @property (class, nonatomic, readonly) QuickSpec *current; @end 9$5FTU$BTFΛܧঝ͍ͯ͠Δ QuickSpec.h

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41 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.m @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } QuickSpec.m

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42 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.m @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } 0CKFDUJWF$3VOUJNFʹΫϥε͕ ϩʔυ͞Εͨͱ͖ʹݺͼग़͞ΕΔ QuickSpec.m

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43 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.m @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } 8PSMEͷ4JOHMFUPOΛऔಘ͠ ΫϩʔδϟΛ࣮ߦ͠Α͏ͱ͍ͯ͠Δ QuickSpec.m

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44 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.m @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } ͜͜Ͱࣗ਎ͷΠϯελϯεΛੜ੒ͯ͠ TQFDΛ࣮ߦ͍ͯ͠Δʂ QuickSpec.m

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45 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // QuickSpec.m @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } ͜͜Ͱࣗ਎ͷΠϯελϯεΛੜ੒ͯ͠ TQFDΛ࣮ߦ͍ͯ͠Δʂ QuickSpec.m spec ͕ݺ͹ΕΔ࢓૊Έ͸ ͳΜͱͳ͘Θ͔ͬͨͧʂ

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48 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift

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49 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ߏ଄తʹ͸͜͏ͳͬͯΔ CalcSpec.swift beforeEach describe context it describe

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50 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ߏ଄తʹ͸͜͏ͳͬͯΔ CalcSpec.swift beforeEach describe context it describe ॱ൪ʹݟ͍ͯ͘

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51 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe

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53 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func describe(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.describe(description, flags: flags, closure: closure) } public func context(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.context(description, flags: flags, closure: closure) } public func beforeEach(_ closure: @escaping BeforeExampleClosure) { World.sharedWorld.beforeEach(closure) } DSL.swift

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54 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func describe(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.describe(description, flags: flags, closure: closure) } public func context(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.context(description, flags: flags, closure: closure) } public func beforeEach(_ closure: @escaping BeforeExampleClosure) { World.sharedWorld.beforeEach(closure) } ... 8PSMEͷγϯάϧτϯʹରͯ͠ ҕৡ͍ͯ͠Δ͚ͩ DSL.swift

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55 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } World+DSL.swift

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56 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } 8PSMEͷFYUFOTJPO World+DSL.swift

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57 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } &YBNQMF(SPVQΛੜ੒ͯ͠ World+DSL.swift

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58 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } ݱࡏͷ&YBNQMF(SPVQʹ௥Ճ͠ World+DSL.swift

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59 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } ΫϩʔδϟΛ౉࣮ͯ͠ߦ͍ͯ͠Δʂ World+DSL.swift

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60 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } World.swift

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61 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ୀආͯ͠ݱࡏͷ&YBNQMF(SPVQΛஔ͖׵͑ World.swift

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62 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ΫϩʔδϟΛ࣮ߦ͠ World.swift

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63 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ୀආͯͨ͠&YBNQMF(SPVQΛݩʹ໭͍ͯ͠Δ World.swift

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64 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ୀආͯͨ͠&YBNQMF(SPVQΛݩʹ໭͍ͯ͠Δ World.swift closure ͬͯͳΜ͚ͩͬʁ ͦ͏͍͑͹

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65 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World.swift final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } }

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66 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World.swift final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } EFTDSJCFͷத਎ͩʂ

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67 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World.swift final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } EFTDSJCFͷத਎ͩʂ ͳΜͱͳ͘ݟ͖͑ͯͨͧʂ

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70 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe

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71 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func describe(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.describe(description, flags: flags, closure: closure) } public func context(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.context(description, flags: flags, closure: closure) } public func beforeEach(_ closure: @escaping BeforeExampleClosure) { World.sharedWorld.beforeEach(closure) } DSL.swift

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72 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func describe(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.describe(description, flags: flags, closure: closure) } public func context(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.context(description, flags: flags, closure: closure) } public func beforeEach(_ closure: @escaping BeforeExampleClosure) { World.sharedWorld.beforeEach(closure) } DSL.swift ΍͸Γ8PSMEͷγϯάϧτϯʹରͯ͠ Ҡৡ͍ͯ͠Δ͚ͩ

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73 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func describe(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.describe(description, flags: flags, closure: closure) } public func context(_ description: String, flags: FilterFlags = [:], closure: () -> Void) { World.sharedWorld.context(description, flags: flags, closure: closure) } public func beforeEach(_ closure: @escaping BeforeExampleClosure) { World.sharedWorld.beforeEach(closure) } DSL.swift ΍͸Γ8PSMEͷγϯάϧτϯʹରͯ͠ Ҡৡ͍ͯ͠Δ͚ͩ DSL ෦෼͸ શ෦͜ͷ࢓૊ͬΆ͍ͧʁ

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74 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } World+DSL.swift

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75 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } ݱࡏͷ&YBNQMF(SPVQͷ World+DSL.swift

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76 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } IPPLTʹΫϩʔδϟΛ௥Ճͯ͠Δ World+DSL.swift

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77 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // ExampleGroup.swift final public class ExampleGroup: NSObject { internal let hooks = ExampleHooks() } // ExampleHooks.swift final internal class ExampleHooks { internal var befores: [BeforeExampleWithMetadataClosure] = [] internal func appendBefore(_ closure: @escaping BeforeExampleClosure) { befores.append { (_: ExampleMetadata) in closure() } } } ExampleGroup.swift / ExampleHooks.swift

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78 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // ExampleGroup.swift final public class ExampleGroup: NSObject { internal let hooks = ExampleHooks() } // ExampleHooks.swift final internal class ExampleHooks { internal var befores: [BeforeExampleWithMetadataClosure] = [] internal func appendBefore(_ closure: @escaping BeforeExampleClosure) { befores.append { (_: ExampleMetadata) in closure() } } } ExampleGroup.swift / ExampleHooks.swift

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79 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // ExampleGroup.swift final public class ExampleGroup: NSObject { internal let hooks = ExampleHooks() } // ExampleHooks.swift final internal class ExampleHooks { internal var befores: [BeforeExampleWithMetadataClosure] = [] internal func appendBefore(_ closure: @escaping BeforeExampleClosure) { befores.append { (_: ExampleMetadata) in closure() } } } ഑ྻʹΫϩʔδϟΛBQQFOEͯ͠Δ ExampleGroup.swift / ExampleHooks.swift

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80 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // ExampleGroup.swift final public class ExampleGroup: NSObject { internal let hooks = ExampleHooks() } // ExampleHooks.swift final internal class ExampleHooks { internal var befores: [BeforeExampleWithMetadataClosure] = [] internal func appendBefore(_ closure: @escaping BeforeExampleClosure) { befores.append { (_: ExampleMetadata) in closure() } } } ഑ྻʹΫϩʔδϟΛBQQFOEͯ͠Δ ExampleGroup.swift / ExampleHooks.swift currentExampleGropup ͕ ͳΜ͔ͩϙΠϯτΈ͍ͨͧʁ

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81 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } World+DSL.swift

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82 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // World.swift final internal class World: _WorldBase { internal var currentExampleGroup: ExampleGroup! internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } World+DSL.swift / World.swift

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83 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // World.swift final internal class World: _WorldBase { internal var currentExampleGroup: ExampleGroup! internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } 8PSME͕͍࣋ͬͯͯ World+DSL.swift / World.swift

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84 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // World.swift final internal class World: _WorldBase { internal var currentExampleGroup: ExampleGroup! internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ͖ͬ͞Ұ࣌ୀආͯͨ͠΍ͭͩʂ World+DSL.swift / World.swift

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85 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func beforeEach(_ closure: @escaping BeforeExampleClosure) { guard currentExampleMetadata == nil else { raiseError("...") } currentExampleGroup.hooks.appendBefore(closure) } } // World.swift final internal class World: _WorldBase { internal var currentExampleGroup: ExampleGroup! internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } ͖ͬ͞Ұ࣌ୀආͯͨ͠΍ͭͩʂ World+DSL.swift / World.swift ͳΜ͔ͩͭͳ͕͖ͬͯͨͧʁ

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88 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ͖ͬ͞ݟͨ΍ͭ

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89 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } ࠶ܝ World+DSL.swift

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90 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } ৽͍͠&YBNQMF(SPVQΛੜ੒ͯ͠ ݱࡏͷ&YBNQMF(SPVQʹ௥Ճ World+DSL.swift

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91 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } ৽͍͠&YBNQMF(SPVQΛੜ੒ͯ͠ ݱࡏͷ&YBNQMF(SPVQʹ௥Ճ World+DSL.swift ExampleGroup ͬͯ describe ͷ͜ͱͰ͸ʁ

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92 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } }

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93 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } lBEEz ੜ੒ͯ͠Δͷ͸ࠓճͷEFTDSJCFͰ

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94 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } લճͷ͕DVSSFOU&YBNQMF(SPVQͰ

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95 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ৽͍͠ͷΛ௥Ճͯ͠

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96 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ΫϩʔδϟΛ౉ͯ͠ॲཧͯ͠Δʂ

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97 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World+DSL.swift extension World { internal func describe(_ description: String, flags: FilterFlags, closure: () -> Void) { let group = ExampleGroup(description: description, flags: flags) currentExampleGroup.appendExampleGroup(group) performWithCurrentExampleGroup(group, closure: closure) } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ΫϩʔδϟΛ౉ͯ͠ॲཧͯ͠Δʂ DSL ߏ଄͕૊ΈཱͯΒΕΔ ࢓૊Έ͕ݟ͖͑ͯͨͧʂ

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98 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } World.swift

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99 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } ྫͷҰ࣌ୀආͯͨ͠ίʔυ World.swift

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100 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } ͖ͬ͞࡞ͬͨ&YBNQMF(SPVQͱ த਎ͷΫϩʔδϟ͕Ҿ਺ʹ World.swift

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101 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } World currentExampleGroup ݱࡏͷ&YBNQMF(SPVQΛ World.swift

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102 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } World currentExampleGroup ৽͍͠ͷʹ੾Γସ͑ͯ World.swift

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103 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } ΫϩʔδϟΛධՁ͠ World currentExampleGroup World.swift

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104 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } World currentExampleGroup ݩʹ໭͍ͯ͠Δʂ World.swift

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105 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World.swift final internal class World: _WorldBase { internal func performWithCurrentExampleGroup(_ group: ExampleGroup, closure: () -> Void) { let previousExampleGroup = currentExampleGroup currentExampleGroup = group closure() currentExampleGroup = previousExampleGroup } } class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } World currentExampleGroup ݩʹ໭͍ͯ͠Δʂ World.swift ͜Ε͕୯ͳΔؔ਺ʴΫϩʔδϟͰ ঢ়ଶΛอ࣋ͭͭ͠૊ΈཱͯΔ࢓૊Έ 8PSME͕ίϯςΩετΛ੾Γସ͍͑ͯ͘

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108 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe

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109 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func context(_ description: String, flags: FilterFlags, closure: () -> Void) { guard currentExampleMetadata == nil else { raiseError("...") } self.describe(description, flags: flags, closure: closure) } } World+DSL.swift

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110 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func context(_ description: String, flags: FilterFlags, closure: () -> Void) { guard currentExampleMetadata == nil else { raiseError("...") } self.describe(description, flags: flags, closure: closure) } } EFTDSJCFΛݺΜͰΔ͚ͩ World+DSL.swift

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111 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { internal func context(_ description: String, flags: FilterFlags, closure: () -> Void) { guard currentExampleMetadata == nil else { raiseError("...") } self.describe(description, flags: flags, closure: closure) } } EFTDSJCFΛݺΜͰΔ͚ͩ World+DSL.swift describe = context = ExampleGroup %4-ͱ໊ͯ͠લ͕ఏڙ͞Ε͍ͯΔ͚ͩ ࣮ଶ͸

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113 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } ࠷ޙʂ CalcSpec.swift beforeEach describe context it describe

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114 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func it(_ description: String, flags: FilterFlags = [:], file: String = #file, line: UInt = #line, closure: @escaping () -> Void) { World.sharedWorld.it(description, flags: flags, file: file, line: line, closure: closure) } DSL.swift

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115 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func it(_ description: String, flags: FilterFlags = [:], file: String = #file, line: UInt = #line, closure: @escaping () -> Void) { World.sharedWorld.it(description, flags: flags, file: file, line: line, closure: closure) } ϚΫϩͰʮϑΝΠϧʯͱʮߦʯΛड͚औΓ DSL.swift

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116 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. public func it(_ description: String, flags: FilterFlags = [:], file: String = #file, line: UInt = #line, closure: @escaping () -> Void) { World.sharedWorld.it(description, flags: flags, file: file, line: line, closure: closure) } ͍ͭ΋ͷΑ͏ʹ8PSMEʹҕৡ DSL.swift

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117 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } World+DSL.swift

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118 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } ϑΝΠϧͱߦΛߏ଄ମʹϥοϓ͠ World+DSL.swift

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119 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } &YBNQMFΛੜ੒͠ World+DSL.swift

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120 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } DVSSFOU&YBNQMF(SPVQʹ௥Ճ World+DSL.swift

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121 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World+DSL.swift extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } DVSSFOU&YBNQMF(SPVQʹ௥Ճ Έͳ·Ͱݴ͏ͳ ΋͏෼͔͍ͬͯΔ

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122 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. // World+DSL.swift extension World { @nonobjc internal func it(_ description: String, flags: FilterFlags, file: String, line: UInt, closure: @escaping () -> Void) { let callsite = Callsite(file: file, line: line) let example = Example(description: description, callsite: callsite, flags: flags, closure: closure) currentExampleGroup.appendExample(example) } } DVSSFOU&YBNQMF(SPVQʹ௥Ճ it = Example ͩʂ ಡΊΔɺಡΊΔͧʂ

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124 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe

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125 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ΦϒδΣΫτͷߏ଄͕ ݟ͖͑ͯͨͧ

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126 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc EFTDSJCF͸&YBNQMF(SPVQ

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127 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores

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128 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores ExampleGroup: add

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129 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores ExampleGroup: add ExampleGroup: 1 + 1 DPOUFYU΋&YBNQMF(SPVQ

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130 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores ExampleGroup: add ExampleGroup: 1 + 1 Example: works JU͸&YBNQMF

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131 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores ExampleGroup: add ExampleGroup: 1 + 1 Example: works CallSite (ﬁle, line) expect(calc.add(1, 1)).to(equal(2)) ϑΝΠϧɾߦɺΞαʔγϣϯίʔυΛ࣋ͭ

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132 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift beforeEach describe context it describe ExampleGroup: calc hooks.befores ExampleGroup: add ExampleGroup: 1 + 1 Example: works CallSite (ﬁle, line) expect(calc.add(1, 1)).to(equal(2)) ϑΝΠϧɾߦɺΞαʔγϣϯίʔυΛ࣋ͭ Quick ͷ DSL ׬શʹཧղͨ͠

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134 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift

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135 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift %4-ͷΤϯτϦϙΠϯτҎ֎͸ఆ͍ٛͯ͠ͳ͍

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136 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. class CalcSpec: QuickSpec { override func spec() { describe("calc") { var calc: Calc! beforeEach { calc = Calc() } describe("add") { context("1 + 1") { it("works") { expect(calc.add(1, 1)).to(equal(2)) } } } } } } CalcSpec.swift %4-ͷΤϯτϦϙΠϯτҎ֎͸ఆ͍ٛͯ͠ͳ͍ ΤϯτϦϙΠϯτʹ ൿີ͕͋Δʹҧ͍ͳ͍ ΋͏Ұ౓ݟͯΈΔ

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137 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } QuickSpec.m

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138 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } TQFD͕ݺ͹ΕͨޙͰ QuickSpec.m

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139 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (void)initialize { [QuickConfiguration initialize]; World *world = [World sharedWorld]; [world performWithCurrentExampleGroup:[world rootExampleGroupForSpecClass:self] closure:^{ QuickSpec *spec = [self new]; @try { [spec spec]; } @catch (NSException *exception) { ... } [self testInvocations]; }]; } Կ͔ݺΜͰΔʂ QuickSpec.m

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140 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } QuickSpec.m

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141 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } JUʹରԠ͢Δ&YBNQMFΛநग़ͯ͠ QuickSpec.m

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142 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } &YBNQMFΛΠϯελϯεϝιουʹ௥Ճͯ͠ QuickSpec.m

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143 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } 4FMFDUPS͔Β/4*OWPDBUJPOΛੜ੒ͯ͠ QuickSpec.m

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144 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } ͦͷҰཡΛฦͯ͠Δʂ QuickSpec.m

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145 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } ͦͷҰཡΛฦͯ͠Δʂ QuickSpec.m Selector ͸෼͔Δ͚Ͳ NSInvocation ͬͯԿͩʁ TFMFDUPSͱ͔Ͱ

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148 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. NSInvocation ϝοηʔδϯάΛදݱͨ͠ΦϒδΣΫτ 0CKFDUJWF$3VOUJNFݶఆͷػೳ ଞݴޠͰݴ͑͹ʮϦϑϨΫγϣϯʯʹ͍ۙ 0CKFDUJWF$ʹ͓͚Δϝιουݺͼग़͠ Dog walk(time: Time) NSInvocation XBML ίϯύΠϧ࣌ʹ֬ఆͯ͠ͳ͍ ϝιου΋ಈతʹݺͼग़ͤΔʂ 0CKFDUJWF$Ͱ͸

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149 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } QuickSpec.m

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150 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } it("works") { expect(calc.add(1, 1)).to(equal(2)) } Example: works NSInvocation JUʹର͢Δݺͼग़͠Λੜ੒ͯ͠ฦͯ͠Δʂ QuickSpec.m

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151 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. @implementation QuickSpec + (NSArray *)testInvocations { NSArray *examples = [[World sharedWorld] examplesForSpecClass:[self class]]; NSMutableArray *invocations = [NSMutableArray arrayWithCapacity:[examples count]]; NSMutableSet *selectorNames = [NSMutableSet set]; for (Example *example in examples) { SEL selector = [self addInstanceMethodForExample:example classSelectorNames:selectorNames]; NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation.selector = selector; [invocations addObject:invocation]; } return invocations; } it("works") { expect(calc.add(1, 1)).to(equal(2)) } Example: works NSInvocation JUʹର͢Δݺͼग़͠Λੜ੒ͯ͠ฦͯ͠Δʂ QuickSpec.m ͜Εͬͯ΋͔ͯ͠͠ ͋ͷҰཡʹରԠͯ͠Δʁ ͋Εʁ

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168 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ·ͱΊ 2VJDL͕Ͳ͏ಈ͔͘ݟ͖ͯͨ • ΤϯτϦϙΠϯτ • %4-͔ΒΦϒδΣΫτߏ଄ͷੜ੒ • 9$5FTUʹςετର৅ҰཡΛ౉͢ 0CKFDUJWF$ϥϯλΠϜͷ׆༻ • Ϋϥεϩʔυ࣌ͷJOJUJBMJ[F • /4*OWPDBUJPOʹΑΔಈతϝοηʔδϯά 8PSME͕ίϯςΩετΛҡ࣋

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169 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ·ͱΊ 2VJDL͕Ͳ͏ಈ͔͘ݟ͖ͯͨ • ΤϯτϦϙΠϯτɿTQFD • %4-͔ΒΦϒδΣΫτߏ଄ͷੜ੒ • 8PSMEΛ࢖ͬͨίϯςΩετҡ࣋ • 9$5FTUʹςετର৅ҰཡΛฦ͢ 0CKFDUJWF$ϥϯλΠϜͷ׆༻ • Ϋϥεϩʔυ࣌ͷJOJUJBMJ[F • /4*OWPDBUJPOʹΑΔಈతϝοηʔδϯά ͋ͳͨ΋ࠓ೔͔Β Quick ίϯτϦϏϡʔλ ࢲ΋