Testing without Xcode - CMD+U 2016

Transcript

1. Testing without Xcode Kyle Fuller

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8. Open Source Libraries

9. Existing code on other Platforms

10. Editors

11. Who am I

12. None

13. Agenda • How other communities do testing • How testing

    is done in Swift today • How we can do testing in Swift in the future

14. How do other communities solve testing? • Ruby ! •

    C / C++ ䷢

15. Testing in Ruby describe '.authenticate' do context 'when logged in'

    do it { is_expected.to respond_with 200 } end end

16. Testing in Ruby $ rspec test.rb Finished in 0.0016 seconds

    (files took 0.2153 seconds to load) 5 examples, 0 failures

17. Testing in C / C++ int main(int argc, const char

    *argv[]) { user_t user = user_alloc("kyle"); // Test User's name assert(user.name == "kyle"); // Test User's priviledges assert(user.is_admin, 0); return 0; }

18. Testing in C / C++ $ clang test.c -o tests

    $ ./tests Tests passed

19. Testing in C / C++ #define CATCH_CONFIG_MAIN #include "catch.hpp" TEST_CASE(

    "Factorials are computed", "[factorial]" ) { REQUIRE( Factorial(1) == 1 ); REQUIRE( Factorial(2) == 2 ); REQUIRE( Factorial(3) == 6 ); REQUIRE( Factorial(10) == 3628800 ); }

20. Test Framework ~= Test Runner

21. Testing in Swift • assert • XCTest • Quick (uses

    XCTest) • Spectre • Ploughman • Custom testing • CLI tool

22. Testing with assert

23. assert()

24. assert(person.name == "Kyle")

25. assert(person.name == "Kyle", "Persons name should be Kyle")

26. struct Person: CustomStringConvertible { let name: String var description: String

    { return name } } let kyle = Person(name: "Kyle") assert(kyle.description == "Kyle", "conforms to CustomStringConvertible")

27. $ swift test.swift

28. Testing in a playground

29. Demo

30. assert() testing Upsides • Extremely simple • Built into stdlib

    Downsides • Hard to manage • Crashes your process, not all tests are ran

31. XCTest

32. CompileSwift normal x86_64 /Users/kyle/Projects/QueryKit/QueryKit/Tests/SortDescriptorTests.swift cd /Users/kyle/Projects/QueryKit/QueryKit /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/kyle/Projects/QueryKit/QueryKit/Tests/AttributeTests.swift

    /Users/kyle/Projects/QueryKit/QueryKit/Tests/QueryKitTests.swift -primary-file /Users/kyle/Projects/QueryKit/QueryKit/Tests/SortDescriptorTests.swift ... Test Suite 'All tests' started at 2016-07-08 01:59:05.062 Test Suite 'QueryKitTests.xctest' started at 2016-07-08 01:59:05.063 Test Suite 'AttributeTests' started at 2016-07-08 01:59:05.063 Test Case '-[QueryKitTests.AttributeTests testAscendingSortDescriptor]' started. Test Case '-[QueryKitTests.AttributeTests testAscendingSortDescriptor]' passed (0.002 seconds). Test Case '-[QueryKitTests.AttributeTests testAttributeExpression]' started. Test Case '-[QueryKitTests.AttributeTests testAttributeExpression]' passed (0.001 seconds). Test Suite 'SortDescriptorTests' passed at 2016-07-08 01:59:05.362. Executed 2 tests, with 0 failures (0 unexpected) in 0.001 (0.003) seconds Test Suite 'QueryKitTests.xctest' passed at 2016-07-08 01:59:05.363. Executed 75 tests, with 0 failures (0 unexpected) in 0.240 (0.300) seconds Test Suite 'All tests' passed at 2016-07-08 01:59:05.364. Executed 75 tests, with 0 failures (0 unexpected) in 0.240 (0.302) seconds ** TEST SUCCEEDED **

33. xctool & xcpretty

34. https://github.com/supermarin/xcpretty

35. None

36. Test Anywhere Protocol (TAP) ... ok 71 - testTypeSafeOrderBySortDescriptor ok

    72 - testTypeSafeOrderBySortDescriptors ok 73 - testTypeSafeRelatedFilterPredicate ok 74 - testAscendingSortDescriptor ok 75 - testDescendingSortDescriptor 1..75
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38. How does XCTest work? $ xcrun -sdk macosx xctest Usage:

    xctest <path of unit to be tested>

39. import XCTest class PersonTests : XCTestCase { func testCustomStringConvertible() {

    let kyle = Person(name: "Kyle") XCTAssertEqual(kyle.description, "Kyle") } }

40. How does XCTest work without Objective-C? import XCTest extension PersonTests

    { static var allTests : [(String, PersonTests -> () throws -> Void)] { return [ ("testCustomStringConvertible", testCustomStringConvertible), ] } } XCTMain([ testCase(PersonTests.allTests), ])
41. None

42. Spectre http://spectre.fuller.li/

43. describe("Person") { let kyle = Person(name: "Kyle") $0.it("has a description")

    { try expect(kyle.description) == "Kyle" } }

44. describe("Person") { let kyle = Person(name: "Kyle") $0.it("has a description")

    { try expect(kyle.description) == "Kyle" } }

45. try expect(person.description) == "Kyle"

46. func == <T> (lhs: Expectation<T>, rhs: T?) throws

47. Reporters

48. None
49. None

50. Custom Reporters

51. Testing in Playground

52. None

53. Demo

54. Spectre Runner

55. $ ./tests --help FLAGS: --tap - Test Anywhere Protocol Reporter

    --t - Dot Reporter

56. https://github.com/Quick/Quick/

57. import Quick import Nimble class TableOfContentsSpec: QuickSpec { override func

    spec() { describe("the 'Documentation' directory") { it("has everything you need to get started") { let sections = Directory("Documentation").sections expect(sections).to(contain("Installing Quick")) } } } }

58. Cucumber

59. Feature: An array Scenario: Appending to an array Given I

    have an empty array When I add 1 to the array Then I should have 1 item in the array Scenario: Filtering an array Given I have an array with the numbers 1 through 5 When I filter the array for even numbers Then I should have 2 items in the array

60. Ploughman https://github.com/kylef/Ploughman/

61. Given I have an empty array var array: [Int]? =

    nil given("^I have an empty array$") { _ in array = [] }

62. When I add X to the array when("^I add (\\d)

    to the array$") { match in let number = Int(match.groups[1])! array.append(number) }

63. Then I should have X items in the array then("^I

    should have (\\d) items? in the array$") { match in let count = Int(match.groups[1])! try expect(array.count) == count }

64. $ ./runner scenarios/array.gherkin

65. Real World Example

66. Feature: Basic Nest compliance Scenario: Success response status code When

    I make a GET request to /hello Then I should have a 200 response Scenario: Response header When I make a GET request to /hello Then I should see the header 'Content-Type' with the value 'text/plain' Scenario: Response body When I make a GET request to /hello Then The contents of the body should be 'Hello World' Scenario: Response body (POST) When I make a POST request with body 'Swift' to /hello Then The contents of the body should be 'Hello Swift'

67. $ NestTestSuite --host http://localhost:8080 Features/*.feature -> Basic Nest compliance ->

    Performing a simple GET request 1 scenarios passed, 0 scenarios failed.

68. Build Tools

69. Xcode

70. DIY $ swiftc Sources/*.swift -module-name Hello -emit-library -emit-module -o Hello.dylib

    $ swiftc Tests/*.swift -lHello -o run-tests $ ./run-tests

71. DIY - Make (Makefile) Hello.dylib: swiftc Sources/*.swift -module-name Hello -emit-library

    -emit-module -o Hello.dylib run-tests: Hello.dylib swiftc Tests/*.swift -lHello -o run-tests .PHONY: test test: run-tests ./run-tests

72. $ make test

73. Swift Package Manager

74. import PackageDescription let package = Package( name: "Curassow", dependencies: [

    .Package(url: "https://github.com/kylef/Commander.git", majorVersion: 0, minor: 4), ] )

75. $ swift build

76. import PackageDescription let package = Package( name: "Curassow", testDependencies: [

    .Package(url: "https://github.com/kylef/Spectre.git", majorVersion: 0, minor: 7), ] )

77. $ swift test

78. LinuxMain.swift import XCTest extension PersonTests { static var allTests :

    [(String, PersonTests -> () throws -> Void)] { return [ ("testCustomStringConvertible", testCustomStringConvertible), ] } } XCTMain([ testCase(PersonTests.allTests), ])

79. Custom Testing with swift test

80. ! swim https://github.com/kylef/swim/

81. swim Goals • swim is compatible with multiple versions of

    Swift (2.x, 3.x, etc) • swim allows you to test your Swift project with third-party testing frameworks. • swim is compatible with common Swift Package Manager libraries. • swim is easy to install (does not depend on Swift)

82. $ pip install swim

83. Package.swift let package = Package( name: "Stencil", testDependencies: [ .Package(url:

    "https://github.com/kylef/Spectre", majorVersion: 0), ] ) Terminal $ swim build $ swim test

84. swiftenv https://swiftenv.fuller.li/

85. $ swiftenv install 2.2.1

86. $ swiftenv local DEVELOPMENT-SNAPSHOT-2016-02-08-a

87. $ cat .swift-version DEVELOPMENT-SNAPSHOT-2016-02-08-a

88. $ swift --version Apple Swift version 2.2.1 $ cd Stencil

    $ swift --version Apple Swift version 3.0-dev

89. swiftenv https://swiftenv.fuller.li/

90. $ brew install kylef/formulae/swiftenv

91. Testing against multiple versions of Swift

92. $ env SWIFT_VERSION=2.2 swift test --clean $ env SWIFT_VERSION=2.3 swift

    test --clean $ env SWIFT_VERSION=3.0 swift test --clean

93. Swift on Travis CI https://swiftenv.fuller.li/en/latest/ integrations/travis-ci.html

94. os: - linux - osx install: - eval "$(curl -sL

    https://github.com/kylef/.../swiftenv-install.sh)"

95. script: swift test

96. env: - SWIFT_VERSION=2.2 - SWIFT_VERSION=2.2.1

97. • Early stages for testing OSS Swift • New tools

    are emerging • Swift Package Manager is evolving • Test against all platforms

98. kylefuller https://fuller.li/talks