Automated Builds and Testing

Wm. Barrett SimmsFrontRunnerMDwbsimms@gmail.com781.405.4686Twitter : @wbsimms

Whoami – Past to Present Systems Administrator

Linux – Solaris Perl Java .NET/C# Agile Project Manager

I love what I do for work.

What you’ll learn How I build software How this helps teams Techniques Tools Show a fairly complete approach

WHY?

Automated Build/Test Benefits

Process PersonalMerging ConfidenceOnboarding employees Improved skillsTesting/QA Collective OwnershipCollaboration Communication

Problems?

Multiple Developers

Main

Joe

Sue

Ted

Jan

Dependent Projects

Common

Middle LayerBusiness Logic

Code Smell:Shotgun Surgery!!

Database Changes

Jan

Bob

Main

Branching and Merging

Mai

n Lin

eBranch 1

Branch 2

???

Mainline merge process

Build/Test Dev branch

Build/Test

Mainline

Merge Dev

branch to

Mainline

Build/Test

Mainline

Check code into

Mainline

Buildservers

Developer merges to mainline

Buildserver gets changes

Buildserver builds, runs all tests and notifies team

Test results are published to team and viewable by all.

Automated testing

Unit tests=

Quality Software

Typical bug velocity

Se-ries1

0500

1000150020002500

Bug Count

Negative bug velocity

Se-ries1

0500

1000150020002500

Bug Count

Common resistance I can’t write unit tests because…

I have a UI WaitN, QTP, Selenium

Fixing someone else’s poorly written code Refactoring, training

I use a database The tricky part.

Databases – The tricky part Common Questions

How do I write unit tests when I require a database

How do I merge changes? How do I add default/test data? How do I update…

Buildserver Production site(s)

A decent answer

Use SQL scripts! Table View Procedures Key and Constraints Default Data Test Data

My one slide solution

Automated Build Server TFS

Auto Generate Database DumpDatabase/CreateDatabase

Automated Testing MSTest

Generating the scripts DumpDatabaseToSql.exe

Microsoft.SqlServer.Management.Smo

Generating the scripts (2)

Database Files All schema files in

revision control.

Creating the database

Another trick: Entity Framework

EdmGen2 http://archive.msdn.microsoft.com/EdmGen2

Unit testing with the database Boy Scout Rule

Leave the campground cleaner than you found it.

At least… leave it as you found it.

Finally… sort of… Wrap it all up in a build script.

MSBuild, NAnt….

I’m using MSBuild… But prefer NAnt.