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iOS Unit Testing

Avatar for Marcilio Junior Marcilio Junior
September 03, 2016
Programming
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iOS Unit Testing

Digital Day BH 2016

Github: https://github.com/marciliojrs/DigitalDayBH2016
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Marcilio Junior

September 03, 2016
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Transcript

  1. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] iOS

    unit Testing

  2. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] who

    am i iOS Lead @ HE:labs iOS Instructor @ Framework Training Center Professor @ PUC Minas CocoaHeads BH Co-organizer Marcílio Júnior

  3. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] unit

    Testing WHY?

  4. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected]

  5. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] Why

    test • Avoid break your codebase • It’s a way to document your code • Make development faster • Reduce your fear • Improve your code quality

  6. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] what

    to test • If possible, everything

  7. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] TYPEs

    of unit tests

  8. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] unit

    test types • Mathematical • Pure functions • Delegation • Output

  9. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] unit

    test types • Mathematical • Delegation • Propagation • Output

  10. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] unit

    test types • Mathematical • Delegation • Output • More than one input/output

  11. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] (B/T)DD

  12. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] (B/T)DD

    • Test-Driven Development • Behaviour-Driven Development

  13. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] (B/T)DD

    • Test-Driven Development • Behaviour-Driven Development let counter = Counter() let expectedCount = 1 counter.tick() XCTAssertEqual(counter.count, expectedCount)

  14. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] (B/T)DD

    • Test-Driven Development • Behaviour-Driven Development describe("Counter") { var counter: Counter! beforeEach { counter = Counter() } it("should increase count by 1 after calling tick") { let expectedCount = counter.count + 1 counter.tick() expect(counter.count).to(be(expectedCount)) } }

  15. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] TESTING

    frameworks • XCTest • Quick

  16. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] TESTING

    frameworks • XCTest • default testing framework of Xcode • Quick

  17. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] TESTING

    frameworks • XCTest • Quick • BDD testing framework

  18. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] quick

    • https://github.com/Quick/Quick • Inspired by RSpec, Specta e Ginkgo • Swift & Objective-C support • It comes with a great matcher framework: Nimble

  19. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] quick

    • BDD DSL • describe • context • it • beforeEach • afterEach

  20. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] testable

    imports • @testable import • allows use your internal classes in unit test target • don’t need to set the unit test target to all your classes

  21. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] live

    coding

  22. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] one

    more thing...

  23. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] tips

    • Dependency injection • Testable architectures • Mocks & Stubs • Code Coverage

  24. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] QUestions?

  25. DIGITAL DAY - SEP 3, 2016 MARCÍLIO JÚNIOR [email protected] thanks!

    @marciliojrs /in/marciliojunior [email protected] @marcilio iOSDevBR @marciliojrs