Debugging, Error Handling, and Testing

So far in this book, we have concentrated on developing applications and adding features to them one at a time. It is very important to know how robust our application is and to keep track of how it has been working and performing. This, in turn, gives rise to the need to be informed when something goes wrong in the application. It is normal to miss out on certain edge cases while developing the application, and usually, even the test cases miss them out. It would be great to know about these edge cases whenever they occur so that they can be handled accordingly.

Effective logging and the ability to debug quickly are a couple of the deciding factors when choosing a framework for application development. The better the logging and debugging support from the framework, the quicker the process of application development and maintenance is. A better level of logging and debugging support helps developers quickly find out the issues in the application...