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Unit Testing and Tools - ADNUG

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William Simms
William Simms

Austin .NET Development Users Group (ADNUG) presentation on 3/14 on Unit Testing and Tools

Technology
1 of 18
Unit Testing and Tools Wm. Barrett Simms barrett@wbsimms.com @wbsimms
Sponsor Thanks!
About Me Software Developer Agile Team Member Team Lead Agile Advocate SDLC Implementer
What are your variable costs? Requirements Quality Defects / Testing Technical Skill Infrastructure These are under your control
The measurement process Take Action Identify Problems Measure
SDLC
Vocabulary • Unit test • Code you write to test your code • Coverage • Measure of how much code is tested • Mock • Replacement for something else • Dependency Injection (DI) • Builder design pattern • Object and dependencies are created for you • Continuous Integration (CI) • Responds to check-ins, builds code, and generates code metrics (coverage, unit test pass fail, etc.)
Why Unit Test? • Which would you rather do? Write Code Manual Testing & Fix Bugs
That’s cute… but really… • Catches regression bugs at the developers desk • Documents how code works • Catalog of the business rules
What makes a good unit test? • Repeatable • Fast • Test by layers • Good Coverage
Test by layers Component Sub-component 1 Sub-component 2 Sub-component 3Sub-component 4 Sub-component 1 Mock Sub-component 2 Mock Sub-component 4
When do you run your test? •All tests all the time!  After pull / sync  Before commits  During CI builds  Before you merge  After you merge
Excuses • It takes too long to write • It takes too long to run • It’s not my job • I don’t understand how the code is supposed to behave so I can’t test it
It takes too long
My toolset • MSTest • Unit testing framework • Moq • Creating mock objects from interfaces • Unity • Dependency Injection • MSBuild • Build automation • Ncover • For coverage analysis
Base Project • Project Roller • https://github.com/wbsimms/ProjectRoller • ASP.NET MVC 5.x • EF 6.x • Unity Dependency Injection 4.x • Angular 1.5 • Bootstrap • Moq • Complete build system • MSBuild • Ncover • Simian • Database creation and seeding • More…
Demo Deep breath…

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Unit Testing and Tools - ADNUG

  • 1. Unit Testing and Tools Wm. Barrett Simms barrett@wbsimms.com @wbsimms
  • 3.
  • 4. About Me Software Developer Agile Team Member Team Lead Agile Advocate SDLC Implementer
  • 5. What are your variable costs? Requirements Quality Defects / Testing Technical Skill Infrastructure These are under your control
  • 8. Vocabulary • Unit test • Code you write to test your code • Coverage • Measure of how much code is tested • Mock • Replacement for something else • Dependency Injection (DI) • Builder design pattern • Object and dependencies are created for you • Continuous Integration (CI) • Responds to check-ins, builds code, and generates code metrics (coverage, unit test pass fail, etc.)
  • 9. Why Unit Test? • Which would you rather do? Write Code Manual Testing & Fix Bugs
  • 10. That’s cute… but really… • Catches regression bugs at the developers desk • Documents how code works • Catalog of the business rules
  • 11. What makes a good unit test? • Repeatable • Fast • Test by layers • Good Coverage
  • 12. Test by layers Component Sub-component 1 Sub-component 2 Sub-component 3Sub-component 4 Sub-component 1 Mock Sub-component 2 Mock Sub-component 4
  • 13. When do you run your test? •All tests all the time!  After pull / sync  Before commits  During CI builds  Before you merge  After you merge
  • 14. Excuses • It takes too long to write • It takes too long to run • It’s not my job • I don’t understand how the code is supposed to behave so I can’t test it
  • 15. It takes too long
  • 16. My toolset • MSTest • Unit testing framework • Moq • Creating mock objects from interfaces • Unity • Dependency Injection • MSBuild • Build automation • Ncover • For coverage analysis
  • 17. Base Project • Project Roller • https://github.com/wbsimms/ProjectRoller • ASP.NET MVC 5.x • EF 6.x • Unity Dependency Injection 4.x • Angular 1.5 • Bootstrap • Moq • Complete build system • MSBuild • Ncover • Simian • Database creation and seeding • More…

Editor's Notes

  1. Welcome!
  2. Focus on technical product delivery
  3. The things you can control!