January 2025
Intermediate to advanced
304 pages
7h 56m
English
Overview
Contract testing is a simple, reliable way to make sure that each service and API plays nice with other components so you can deploy independently and safely.
Large, loosely coupled systems have hundreds, even thousands, of interactions—and traditional testing can often struggle to keep up! Enter contract testing. This rapidly growing new approach checks API and service compatibility by verifying it against an agreed contract. No more unexpected integration issues, and no more breaking things in production!
In Contract Testing in Action you’ll learn:
Contract Testing in Action introduces the practice of contract testing through engaging hands-on examples. You’ll learn how to introduce contract tests for multiple different types of communication, from REST APIs to event-driven architecture. By the end of this practical guide, you’ll be comfortable with advanced contract testing concepts like can-i-deploy, provider states, and webhooks. You’ll even get tips on how to introduce contract testing to your team and other business stakeholders.
About the Technology
It’s difficult to test API and event-based services that can be used by many applications simultaneously through a complex network of integrations. Contract testing offers a straightforward solution. API and service compatibility are verified against agreed-upon contracts that each component in the system—and the developers that build them—can understand and respect. This transformative technique helps uncover integration issues early and adds vital transparency to any system.
About the Book
Contract Testing in Action makes it easy for your team to adopt contract testing for microservices and other API-centric systems. You’ll start by learning how contract testing fits into the software development lifecycle, and then you’ll explore practical methods to integrate it with your own tech stack and practices. You’ll use leading contract testing tools—including Pact, PactFlow, and GitHub Actions—to build your own contract testing framework, set up consumer-driven contract testing for REST and GraphQL APIs, and integrate it into your CI/CD pipeline.
What's Inside
About the Reader
For software developers and quality engineers who have worked with Java or JavaScript, and APIs.
About the Authors
Marie Cruz is a Software Tester with over ten years of experience and also a Developer Advocate at Grafana Labs. Lewis Prescott is a Test Specialist at IBM with over nine years experience in software testing.
Quotes
Shows you how to add contract testing to your testing efforts, and more importantly why you should consider it.
- Bas Dijkstra, On Test Automation
You’ll feel like the authors are working with you side-by and quickly reap the benefits of contract testing.
- Lisa Crispin, Lisa Crispin Consulting, LLC
Incredibly comprehensive and balanced overview. I thoroughly recommend it.
- Yousaf Nabi, SmartBear
Does an exceptional job of demystifying contract testing!
- Rafaela Azevedo, The Chaincademy
Large, loosely coupled systems have hundreds, even thousands, of interactions—and traditional testing can often struggle to keep up! Enter contract testing. This rapidly growing new approach checks API and service compatibility by verifying it against an agreed contract. No more unexpected integration issues, and no more breaking things in production!
In Contract Testing in Action you’ll learn:
- The core concepts and practices of contract testing
- Testing microservices with Pact
- Consumer-driven and bi-directional testing
- Building a contract testing framework
- Converting API integration tests to contract tests
Contract Testing in Action introduces the practice of contract testing through engaging hands-on examples. You’ll learn how to introduce contract tests for multiple different types of communication, from REST APIs to event-driven architecture. By the end of this practical guide, you’ll be comfortable with advanced contract testing concepts like can-i-deploy, provider states, and webhooks. You’ll even get tips on how to introduce contract testing to your team and other business stakeholders.
About the Technology
It’s difficult to test API and event-based services that can be used by many applications simultaneously through a complex network of integrations. Contract testing offers a straightforward solution. API and service compatibility are verified against agreed-upon contracts that each component in the system—and the developers that build them—can understand and respect. This transformative technique helps uncover integration issues early and adds vital transparency to any system.
About the Book
Contract Testing in Action makes it easy for your team to adopt contract testing for microservices and other API-centric systems. You’ll start by learning how contract testing fits into the software development lifecycle, and then you’ll explore practical methods to integrate it with your own tech stack and practices. You’ll use leading contract testing tools—including Pact, PactFlow, and GitHub Actions—to build your own contract testing framework, set up consumer-driven contract testing for REST and GraphQL APIs, and integrate it into your CI/CD pipeline.
What's Inside
- Testing microservices with Pact
- Consumer-driven and bi-directional contract testing
- Building a contract testing framework
- Converting API integration tests to contract tests
About the Reader
For software developers and quality engineers who have worked with Java or JavaScript, and APIs.
About the Authors
Marie Cruz is a Software Tester with over ten years of experience and also a Developer Advocate at Grafana Labs. Lewis Prescott is a Test Specialist at IBM with over nine years experience in software testing.
Quotes
Shows you how to add contract testing to your testing efforts, and more importantly why you should consider it.
- Bas Dijkstra, On Test Automation
You’ll feel like the authors are working with you side-by and quickly reap the benefits of contract testing.
- Lisa Crispin, Lisa Crispin Consulting, LLC
Incredibly comprehensive and balanced overview. I thoroughly recommend it.
- Yousaf Nabi, SmartBear
Does an exceptional job of demystifying contract testing!
- Rafaela Azevedo, The Chaincademy
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