Swift で ParameterizedTest をやってみた話/swift-parameterized-test

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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) } } }

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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) } } } ೖྗ஋ͱظ଴஋ͷλϓϧ

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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

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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

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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) } } }

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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) } } } ςετσʔλ௥Ճɾ࡟আָ͕ͩ͠ɺ ݟ௨͠΋Α͍ؾ͕͢Δʂ

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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") } }

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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

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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") } } ݺͼग़͠ݩͷϑΝΠϧɾߦ਺Λऔಘ

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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") } } Ҿ਺Ͱ౉͢

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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

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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) } } }

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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) } } } ֤λϓϧʹMJOFΛ௥Ճͯ͠

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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) } } } "TTFSUJPOؔ਺ʹ౉͢

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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"), ]) } }

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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"), ]) } } ݕূର৅ͷؔ਺Λࢦఆͯ͠

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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"), ]) } } ݕূ͢Δೖྗ஋ɾظ଴஋Λྻڍ