To refactor safely, we want to get test coverage up. Our ideal is always 100%, but remember that this doesn’t guarantee a good test suite. Use the coverage as a guide to missing test cases, but don’t forget to think about cases that might not be revealed by coverage!

► All Refactoring Episodes: http://goo.gl/f7Yf21
► Let’s Develop! http://letsdeveloper.com
► Don’t Miss an Episode: http://goo.gl/whzDi1
► Check out the Code: https://github.com/letsdeveloper/Lets-Refactor-MovieRental
► Uncle Bob on Test Coverage: http://goo.gl/KJor0F

«Refactoring»
“A change made to the internal structure of software to make it easier to understand and cheaper to modify without changing its observable behavior”, http://martinfowler.com/books/refactoring.html

«Other Series»
► Let’s Develop Conway’s Game of Life: http://goo.gl/xc59GX
► Let’s Develop With Git in Eclipse: http://goo.gl/phqnDe
► Let’s Develop With Maven in Eclipse: http://goo.gl/3KK2gb