TDD with BizTalk

Test-Driven Development with BizTalk Server 2004 Ben Carey

What We Will Cover

What is Test-Driven Development (TDD)?

Why should we use TDD?

The TDD cycle

TDD for integration projects

A TDD episode with Microsoft ® BizTalk ® Server

Session Prerequisites

General knowledge of BizTalk Server

General knowledge of integration concepts

A desire to know if your code works

Level 200

Test-Driven Development

Repeatable / automated tests

Proving the system for various scenarios

Feedback

Incremental design

Executable documentation

The Benefits of TDD

Feedback

Short cycles to knowing what works, what’s broken, and extended effects of modifications

Flow

Red, Green, Refactor

It feels good.

Courage

Have confidence in your work and your purpose.

Documentation

It’s executable.

Design

Organic architecture

Simplicity

The Test-Driven Cycle

What do I need to do?

How can I test it?

Write a test (or a few).

Watch it fail.

Write some code.

Watch it pass.

Refactor if necessary.

Repeat

Test-Driven Integration

Start with acceptance / integration level tests.

Integration tests usually take the bulk of the time (for both development and execution).

Don’t worry so much about systems out of your control.

Test at a finer-grained level if it makes sense (layered testing).

Testing Integration Scenarios

Testing Within the Boundaries

Layered Testing

A Test-Driven Episode - Scenario

Our Scenario…

We are developers at FooCorp. FooCorp has been asked to develop a system that will aggregate weather data and find hazardous mountain conditions.

We need to write a system that will pull data from various sources and input them into our system so that we can do trend analysis and make predictions.

A Test-Driven Episode – Story #1 Story: Consume MesoWest data

Demonstration Test-Driven BizTalk

Session Summary

Discussion of what TDD really is

Some key benefits of using TDD

The test-driven cycle

Using TDD for integration projects

Demonstration of TDD with BizTalk

For More Information

Agile EAI

http://www.eaipatterns.com/docs/agileEAI.html

Test-Driven Development in Enterprise Integration Projects

http://www.hohpe.com/Gregor/Work/docs/ TestDrivenEAI.pdf

www.testdriven.com

Additional Resources

Framework for Rapid Test Case Development

http://www.gotdotnet.com/workspaces/ workspace.aspx?id=8353c433-5b5c-464d-9605-bd4220686850

NUnit

http://www.nunit.org/

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