Working Effectively with Legacy Code

Available in Java, C++ or C#

Test Driven Development and Refactoring are powerful tools. With them you can add new code to systems and make existing code more maintainable. However, refactoring code without having tests in place can be hazardous. This class presents a collection of dependency breaking and test writing techniques that can be used to get existing code safely under test for refactoring. These techniques can be used in conjunction with Test Driven Development to breathe new life into large existing code bases. This class is structured as a set of lectures, discussions, and hands-on exercises.

Objectives

By the end of this course, you will:

Understand what legacy code is
Understand how to break dependencies in legacy code
Learn a variety of techniques for breaking external dependencies
Learn a variety of techniques for breaking internal dependencies
Understand when to employ each of the techniques
Learn a variety of strategies for code refactoring
Learn how to identify change points
Learn how to find an inflection point
Understand the concept of test coverage for inflection points
Understand how to write effective tests for legacy code

Outline

Here is a brief course outline for the course:

Day 1

Introduction / Testing as a Programmer’s tool
Seam identification
Breaking Dependencies – Sensing and Separation
Breaking Manifest Dependencies
Breaking Hidden Dependencies
Characterization Testing
Day 2
Strategies for Getting Large Methods under Test
Refactoring Architecture for Testability
Larger scale testing with Fitnesse

Prerequisites

Experience with a programming language

Length

2 days

Price

$1250
Price includes course notes and workbooks

Registration and Start Dates

To request an onsite or private course or for more information about registration and start dates, call 1-847-249-4209 or

Onsite Requirements

If you are planning on conducting the course on your site, please see our Customer Site Setup Guidelines.

Register Today!

Call 1-847-249-4209