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Swift で ParameterizedTest をやってみた話/swift-parameterized-test
Yusuke Hosonuma
April 16, 2019
Programming
4
1.2k
Swift で ParameterizedTest をやってみた話/swift-parameterized-test
iOS Test Night #10 での発表
https://testnight.connpass.com/event/119381/
Yusuke Hosonuma
April 16, 2019
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Transcript
Copyright (C) DeNA Co.,Ltd. All Rights Reserved. 4XJGUͰ1BSBNFUFSJ[FE5FTU ΛͬͯΈͨ 1
iOS Test Night #10 2019/4/16ʢTueʣ ࡉপ ༞հ@DeNA
"CPVU 2 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
:VTVLF)PTPOVNB • 48&5άϧʔϓ ⁃ ςετࣗಈԽɹJ04(P • 'BWPSJUF ⁃ •
ۙگ ⁃ USZ4XJGU50,:0Ͱొஃ ⁃ വؗʹཱྀߦʹߦ͖ͬͯͨʂ Copyright (C) DeNA Co.,Ltd. All Rights Reserved. 3 @tobi462ʢτϏʣ SwiftCheckͰ࢝ΊΔ Property-based Testing
ࠓ͢͜ͱ 4 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
4XJGUͰ 1BSBNFUFSJ[FEUFTU ΛͬͯΈͨ 5 Copyright (C) DeNA Co.,Ltd. All Rights
Reserved.
1BSBNFUFSJ[FEUFTUʁ 6 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
7 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. Parameterized-Test •
ࣄલʹςετσʔλΛྻڍ͢Δॻ͖ํ • ςετσʔλͷՃɾআ͕͍͢͠ͱ͍͏ར • +6OJUͰඪ४Ͱαϙʔτ • (PݴޠͰҰൠతͳॻ͖ํ • ςʔϒϧۦಈςετͱݺΕͨΓ
9$5FTUͰະαϙʔτ 8 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͪΖΜ
ͰࣗͰॻ͚Δͣʂ 9 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
'J[[#V[[ͷςετ Λॻ͍ͯΈΔ͜ͱʹ͢Δͧʂ 10 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
11 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } }
12 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } } ೖྗͱظͷλϓϧ
13 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } } ྻͰςετσʔλΛ༻ҙ
14 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } } ϧʔϓͰॱ൪ʹݕূ
15 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } }
16 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. XCTest Ͱ
Parameterized Test class ParamTests: XCTestCase { func testParams() { let tests: [(args: Int, expect: String)] = [ (1, "1"), (2, "2"), (3, "Fizz"), (4, "4"), (5, "Buzz"), (6, "6"), ] for (args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result) } } } ςετσʔλՃɾআָ͕ͩ͠ɺ ݟ௨͠Α͍ؾ͕͢Δʂ
ςετ͕ࣦഊͨ࣌͠ 17 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͔͠͠
18 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ςετ͕ࣦഊͨ࣌͠
19 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ςετ͕ࣦഊͨ࣌͠ Τϥʔ͕ू͞Εͯ͠·͏
20 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ςετ͕ࣦഊͨ࣌͠ ཧΛݴ͑ɺ͜ͷߦʹग़ͯཉ͍͠
9$5FTUͰ ΤϥʔදࣔͷҐஔࢦఆͰ͖Δ 21 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
࣮
22 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ func
assertEmpty(_ s: String, file: StaticString = #file, line: UInt = #line) { XCTAssert(s.isEmpty, file: file, line: line) } class AssertTests: XCTestCase { func testEmpty() { assertEmpty("Swift") } }
23 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ func
assertEmpty(_ s: String, file: StaticString = #file, line: UInt = #line) { XCTAssert(s.isEmpty, file: file, line: line) } class AssertTests: XCTestCase { func testEmpty() { assertEmpty("Swift") } } ۭจࣈྻͰ͋Δ͜ͱΛݕূ
24 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ func
assertEmpty(_ s: String, file: StaticString = #file, line: UInt = #line) { XCTAssert(s.isEmpty, file: file, line: line) } class AssertTests: XCTestCase { func testEmpty() { assertEmpty("Swift") } } ݺͼग़͠ݩͷϑΝΠϧɾߦΛऔಘ
25 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ func
assertEmpty(_ s: String, file: StaticString = #file, line: UInt = #line) { XCTAssert(s.isEmpty, file: file, line: line) } class AssertTests: XCTestCase { func testEmpty() { assertEmpty("Swift") } } ҾͰ͢
26 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ func
assertEmpty(_ s: String, file: StaticString = #file, line: UInt = #line) { XCTAssert(s.isEmpty, file: file, line: line) } class AssertTests: XCTestCase { func testEmpty() { assertEmpty("Swift") } } ࣦഊ͢ΔσʔλͰ࣮ߦ͢Δͱɻɻ
27 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ ݺͼग़͠ݩʹΤϥʔදࣔ͞Εͨʂ
28 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ಠࣗͷΞαʔγϣϯ ݺͼग़͠ݩʹΤϥʔදࣔ͞Εͨʂ
͜ΕͰվળͰ͖ͦ͏ͩͧʂ
1BSBNFUFSJ[FE5FTU Λվળͯ͠ΈΔ 29 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
30 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. վળ൛ Parameterized
Test class ParamTests: XCTestCase { func testParams() { let tests: [(line: UInt, args: Int, expect: String)] = [ (#line, 1, "1"), (#line, 2, "2"), (#line, 3, "Fizz"), (#line, 4, "4"), (#line, 5, "Buzz"), (#line, 6, "6"), ] for (line, args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result, line: line) } } }
31 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. վળ൛ Parameterized
Test class ParamTests: XCTestCase { func testParams() { let tests: [(line: UInt, args: Int, expect: String)] = [ (#line, 1, "1"), (#line, 2, "2"), (#line, 3, "Fizz"), (#line, 4, "4"), (#line, 5, "Buzz"), (#line, 6, "6"), ] for (line, args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result, line: line) } } } ֤λϓϧʹMJOFΛՃͯ͠
32 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. վળ൛ Parameterized
Test class ParamTests: XCTestCase { func testParams() { let tests: [(line: UInt, args: Int, expect: String)] = [ (#line, 1, "1"), (#line, 2, "2"), (#line, 3, "Fizz"), (#line, 4, "4"), (#line, 5, "Buzz"), (#line, 6, "6"), ] for (line, args, expect) in tests { let result = fizzBuzz(args) XCTAssertEqual(expect, result, line: line) } } } "TTFSUJPOؔʹ͢
33 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. վળ൛ Parameterized
Test
34 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. վળ൛ Parameterized
Test ࣦഊͨ͠Ґஔ͕͔Γ͍͢ʂ ͜Ε͕ސ٬ͷٻΊ͍ͯͨͷ
MJOF͢Βॻ͖ͨ͘ͳ͍ 35 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ސ٬
MJOF͢Βॻ͖ͨ͘ͳ͍ 36 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ސ٬
OSS Խɺܾఆʂ
37 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͷߟ͑ͨ࠷ڧͷ Parameterized
Test class ParamTests: XCTestCase { func testFizzBuzz() { assert(fizzBuzz).forAll([ when(1, then: "1"), when(2, then: "2"), when(3, then: "Fizz"), when(4, then: "4"), when(5, then: "Buzz"), when(6, then: "6"), ]) } }
38 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͷߟ͑ͨ࠷ڧͷ Parameterized
Test class ParamTests: XCTestCase { func testFizzBuzz() { assert(fizzBuzz).forAll([ when(1, then: "1"), when(2, then: "2"), when(3, then: "Fizz"), when(4, then: "4"), when(5, then: "Buzz"), when(6, then: "6"), ]) } } ݕূରͷؔΛࢦఆͯ͠
39 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͷߟ͑ͨ࠷ڧͷ Parameterized
Test class ParamTests: XCTestCase { func testFizzBuzz() { assert(fizzBuzz).forAll([ when(1, then: "1"), when(2, then: "2"), when(3, then: "Fizz"), when(4, then: "4"), when(5, then: "Buzz"), when(6, then: "6"), ]) } } ݕূ͢ΔೖྗɾظΛྻڍ
40 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͷߟ͑ͨ࠷ڧͷ Parameterized
Test
41 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ͷߟ͑ͨ࠷ڧͷ Parameterized
Test https://github.com/ YusukeHosonuma/SwiftParamTest ɺผʹελʔ͕ཉ͍͠Θ͚͡Ό ͳ͍Μ͔ͩΒͶ///
·ͱΊ 42 Copyright (C) DeNA Co.,Ltd. All Rights Reserved.
43 Copyright (C) DeNA Co.,Ltd. All Rights Reserved. ·ͱΊ •
1BSBNFUFSJ[FE5FTUσʔλΛྻڍ͢ΔΑ͏ͳ ςετίʔυͷॻ͖ํ • 9$5FTU4XJGUͰॻ͚Δ • 9$5"TTFSUܥΤϥʔҐஔΛ੍ޚͰ͖Δ • Α͔ͬͨΒ044ͬͯΈͯͶʂ ΞΠσΟΞͱ͔ืूʂɹ5XJUUFS!UPCJ
1BSBNFUFSJ[FEUFTU CFHJOOJOHXJUI 4XJGU1BSBN5FTU 44 Copyright (C) DeNA Co.,Ltd. All Rights
Reserved.