Book Image

Crafting Test-Driven Software with Python

By : Alessandro Molina
Book Image

Crafting Test-Driven Software with Python

By: Alessandro Molina

Overview of this book

Test-driven development (TDD) is a set of best practices that helps developers to build more scalable software and is used to increase the robustness of software by using automatic tests. This book shows you how to apply TDD practices effectively in Python projects. You’ll begin by learning about built-in unit tests and Mocks before covering rich frameworks like PyTest and web-based libraries such as WebTest and Robot Framework, discovering how Python allows you to embrace all modern testing practices with ease. Moving on, you’ll find out how to design tests and balance them with new feature development and learn how to create a complete test suite with PyTest. The book helps you adopt a hands-on approach to implementing TDD and associated methodologies that will have you up and running and make you more productive in no time. With the help of step-by-step explanations of essential concepts and practical examples, you’ll explore automatic tests and TDD best practices and get to grips with the methodologies and tools available in Python for creating effective and robust applications. By the end of this Python book, you will be able to write reliable test suites in Python to ensure the long-term resilience of your application using the range of libraries offered by Python for testing and development.
Table of Contents (18 chapters)
1
Section 1: Software Testing and Test-Driven Development
6
Section 2: PyTest for Python Testing
13
Section 3: Testing for the Web
16
About Packt

Using behavior-driven development

For the first phase of our contact book application, we took it for granted that the people we had to speak with understood the Python language well enough that we could share with them our acceptance tests for review and confirm that we were going in the right direction.

While it's getting more and more common that people involved in product definition have at least an entry-level knowledge of programming, we can't take it for granted that every stakeholder we need to enter into discussions with knows Python.

So how can we keep the same kind of feedback loop and apply the strategy of reviewing all our acceptance tests with other stakeholders without involving Python?

That's what Behavior-Driven Development (BDD) tries to solve. BDD takes some concepts from Test-Driven Development (TDD) and Domain-Driven Design (DDD) to allow all stakeholders to speak the same language as the technical team.

In the end, BDD tries to mediate between the...