Book Image

Python Programming Blueprints

By : Daniel Furtado, Marcus Pennington
Book Image

Python Programming Blueprints

By: Daniel Furtado, Marcus Pennington

Overview of this book

Python is a very powerful, high-level, object-oriented programming language. It's known for its simplicity and huge community support. Python Programming Blueprints will help you build useful, real-world applications using Python. In this book, we will cover some of the most common tasks that Python developers face on a daily basis, including performance optimization and making web applications more secure. We will familiarize ourselves with the associated software stack and master asynchronous features in Python. We will build a weather application using command-line parsing. We will then move on to create a Spotify remote control where we'll use OAuth and the Spotify Web API. The next project will cover reactive extensions by teaching you how to cast votes on Twitter the Python way. We will also focus on web development by using the famous Django framework to create an online game store. We will then create a web-based messenger using the new Nameko microservice framework. We will cover topics like authenticating users and, storing messages in Redis. By the end of the book, you will have gained hands-on experience in coding with Python.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Dedication
Contributors
Packt Upsell
Preface
Index

Learning to test


So far in this book, we haven't covered how to create tests. Now is a good time to do that, so we are going to create tests for the methods that we created in the model manager.

Why do we need tests? The short answer to this question is that tests will allow us to know that the methods or functions are doing the right thing. The other reason (and one of the most important, in my opinion) is that tests give us more confidence when it comes to performing changes in the code.

Django has great tools out of the box for creating unit and integration tests, and combined with frameworks like Selenium, it is possible to basically test all of our application.

With that said, let's create our first tests. Django creates a file called test.py in the app directory when creating a new Django app. You can write your tests in there, or if you prefer to keep the project more organized by separating the tests into multiple files, you can remove that file and create a directory called tests and...