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You're reading from Mastering Python Networking Your one-stop solution to using Python for network automation, DevOps, and Test-Driven Development

Product type Paperback

Published in Aug 2018

Publisher Packt

ISBN-13 9781789135992

Length 466 pages

Edition 2nd Edition

Languages

Python

Tools

Ansible

Concepts

DevOps

Author (1):

Eric Chou

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Table of Contents (20) Chapters

Title Page

Packt Upsell

Contributors

Preface

1. Review of TCP/IP Protocol Suite and Python FREE CHAPTER

2. Low-Level Network Device Interactions

3. APIs and Intent-Driven Networking

4. The Python Automation Framework – Ansible Basics

5. The Python Automation Framework – Beyond Basics

6. Network Security with Python

7. Network Monitoring with Python – Part 1

8. Network Monitoring with Python – Part 2

9. Building Network Web Services with Python

10. AWS Cloud Networking

11. Working with Git

12. Continuous Integration with Jenkins

13. Test-Driven Development for Networks

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Index

Pytest in Jenkins

Continuous-integration (CI) systems, such as Jenkins, are frequently used to launch tests after each of the code commits. This is one of the major benefits of using a CI system. Imagine that there is an invisible engineer who is always watching for any change in the network; upon detecting change, the engineer will faithfully test a bunch of functions to make sure that nothing breaks. Who wouldn't want that?

Let's look at an example of integrating pytest into the Jenkins tasks.

Jenkins integration

Before we can insert the test cases into our continuous integration, let's install some of the plugins that can help us visualize the operation. The two plugins we will install are build-name-setter and Test Result Analyzer:

Jenkins plugin installation

The test we will run will reach out to the NXOS device and retrieve the operating system version number. This will ensure that we have API reachability to the Nexus device. The full script content can be read in chapter13_9_pytest_4...