Session #2: Test Driven Development: Improving .NET Application Performance & Scalability Presented by: Jerry Nixon

1. Jerry

2. And other world religions
• What is it & Why TDD?
• Software Unit Tests in VSTS
• Database Unit Tests in VSTS
• VSTS for DB Pros GDR

4. Users don’t know what they want

Users can’t communicate what they want

Users change their minds

Requirements aren’t documented

Expectations aren’t established

Developers haven’t documented


5. NOT A TEST PATTERN

7. Can you Afford Change?
Impulse Buying: Impulse Building

Late Payments: Late Changes

Bankruptcy: Project Rewrite


9. Write tests to ensure code executes properly

Write tests to ensure code fails properly

Write a test as if it is the only test

Write a test to test small code blocks

DEMO…

10. VSTS for Database Professionals GDR

Select Connections

Validate Results

Generate Data

Manage Transactions

DEMO…

11. 100% 100
90% 90
80% 80
70% 70
60% 60
Pass
Inconclusive
50% 50
Fail
Bugs
40% 40 Coverage
30% 30
20% 20
10% 10
0% -
It #1 It #2 It #3 It #4 It #5 It #6 It #7 It #8 It #9 It #10

12.  TDD is a Design Pattern
 Testability & Design Debt
 Unit Tests help document
 Unit Test your Database
 Slow Cultural Change

13. http://jerrytech.blogspot.com
jerry@nixoncorp.com