Test Driven Development with .NET

1. Introduction to Test Driven
Development (TDD) with .NET
Tom Steele
Three Rivers Technologies
La Crosse, WI

2. Popularized by Extreme
Programming (XP)
“Testing Strategy” (1st Edition)
“Test-First” (2nd Edition)
Test Driven Development (TDD)

3. Popularized by Extreme
Programming (XP)
“Testing Strategy” (1st Edition)
“Test-First” (2nd Edition)
Test Driven Development (TDD)

4. Popularized by Extreme
Programming (XP)
“Testing Strategy” (1st Edition)
“Test-First” (2nd Edition)
Test Driven Development (TDD)

5. Popularized by Extreme
Programming (XP)
“Testing Strategy” (1st Edition)
“Test-First” (2nd Edition)
Test Driven Development (TDD)

6. TDD is not about testing
How is that possible?
Testing

7. TDD is not just about testing
Un-ambiguous requirements
Software design
Contributes to loose coupling
Productivity improvement

8. TDD is not just about testing
Un-ambiguous requirements
Software design
Contributes to loose coupling
Productivity improvement

9. TDD is not just about testing
Un-ambiguous requirements
Software design
Contributes to loose coupling
Productivity improvement

10. TDD is not just about testing
Un-ambiguous requirements
Software design
Contributes to loose coupling
Productivity improvement

11. TDD is not just about testing
Un-ambiguous requirements
Software design
Contributes to loose coupling
Productivity improvement

12. Refactor
Green
Red

13. Tools
MBUnit
Others…

14. Let’s see TDD in action
Demo

15. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

16. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

17. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

18. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

19. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

20. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

21. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

22. Let’s review what we learned in
the demo
Where to put unit tests (my best practice)
NUnit Assert.AreEqual basics
Test list
Red-Green-Refactor rhythm
Running tests with NUnit GUI & TestDriven.NET
Test with Debugger & Coverage
Various SetUp and TearDown methods
Use of Console.WriteLine (my best practice)

23. Some additional thoughts and
discussion points
TDD religion vs. pragmatism
Continuous integration
Knowing what to test (art not science)
Database testing
Unit test vs. “batch” unit tests

24. Some additional thoughts and
discussion points
TDD religion vs. pragmatism
Continuous integration
Knowing what to test (art not science)
Database testing
Unit test vs. “batch” unit tests

25. Some additional thoughts and
discussion points
TDD religion vs. pragmatism
Continuous integration
Knowing what to test (art not science)
Database testing
Unit test vs. “batch” unit tests

26. Some additional thoughts and
discussion points
TDD religion vs. pragmatism
Continuous integration
Knowing what to test (art not science)
Database testing
Unit test vs. “batch” unit tests

27. Some additional thoughts and
discussion points
TDD religion vs. pragmatism
Continuous integration
Knowing what to test (art not science)
Database testing
Unit test vs. “batch” unit tests

28. Question & Answer Time
Or My Recommended
Agile Reading List

29. Background & Contact Information
Software Architect
CSM/CSP
MCAD
Microsoft Ecosystem
All things .NET
SharePoint & Silverlight
Strong advocate for Agile/Scrum
tsteele@3riverstech.com

30. Thank You
Tom Steele
Three Rivers Technologies
tsteele@3riverstech.com

31. Currently reading
My Most
Recommended

32. My Recommended
Agile Reading List

33. Agile Manifesto
www.agilemanifesto.org

34. Requirements
User/Role Modeling
Scrum Intro

35. Empirical vs. Defined
Scrum Mechanics

36. General Project Mgmt
Case Studies/Stories

37. Bible on Project Planning

38. 2nd Edition Less Rigid than 1st
People Focused
TDD & Other Practices like CI

39. 2 Lean Books
Toyota Production System
Enterprise Validity

40. Ideas for Enterprise Adoption
Scaling Scrum