Sign In Start Free Trial

Book Overview & Buying
Table Of Contents

Writing API Tests with Karate

By : Benjamin Bischoff

5 (8)

Writing API Tests with Karate

5 (8)

By: Benjamin Bischoff

Overview of this book

Software in recent years is moving away from centralized systems and monoliths to smaller, scalable components that communicate with each other through APIs. Testing these communication interfaces is becoming increasingly important to ensure the security, performance, and extensibility of the software. A powerful tool to achieve safe and robust applications is Karate, an easy-to-use, and powerful software testing framework. In this book, you’ll work with different modules of karate to get tailored solutions for modern test challenges. You’ll be exploring interface testing, UI testing as well as performance testing. By the end of this book, you’ll be able to use the Karate framework in your software development lifecycle to make your APIs and applications robust and trustworthy.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Download the color images

Conventions used

Get in touch

Share Your Thoughts

Download a free PDF copy of this book

Part 1:Karate Basics

Part 1:Karate Basics

Free Chapter

Chapter 1: Introducing Karate’s Core Concepts

Chapter 1: Introducing Karate’s Core Concepts

Technical requirements

What makes Karate stand out?

BDD versus Karate

Supported data types in Karate

The JavaScript engine

Java interoperability

Summary

Chapter 2: Setting up Your Karate Project

Chapter 2: Setting up Your Karate Project

Technical requirements

Installing Java

Getting to know Karate standalone

Preparing the IDE

Setting up Karate projects with Maven

The roles of the different Karate project files

Summary

Chapter 3: Writing Basic Karate Tests

Chapter 3: Writing Basic Karate Tests

Technical requirements

Exploring the API under test

Creating a new Karate project

Calling endpoints and setting parameters

Matching status codes and responses

Using assertions and matchers on the response

Making requests with payloads

Using variables and data tables

Using data tables

Summary

Chapter 4: Running Karate Tests

Chapter 4: Running Karate Tests

Technical requirements

Running and debugging Karate tests through the IDE

Running tests with Maven

Running tests against different environments

Running specific tests

Filtering tests by tags

Summary

Chapter 5: Reporting and Logging

Chapter 5: Reporting and Logging

Technical requirements

Configuring log options

Using Karate’s built-in reports

Configuring third-party report libraries

Generating a Surefire report

Using JUnit reports

Summary

Part 2:Advanced Karate Functionalities

Part 2:Advanced Karate Functionalities

Chapter 6: More Advanced Karate Features

Chapter 6: More Advanced Karate Features

Technical requirements

Working with headers and cookies

Using different configuration and run options

Defining and using expressions with def

Working with external files

Understanding JSONPath and XPath

Testing GraphQL

Summary

Chapter 7: Customizing and Optimizing Karate Tests

Chapter 7: Customizing and Optimizing Karate Tests

Technical requirements

Using Karate hooks

Defining and calling Java functions

Using Karate as a mock server

Making your tests more concise

Summary

Chapter 8: Karate in Docker and CI/CD pipelines

Chapter 8: Karate in Docker and CI/CD pipelines

Technical requirements

Triggering Karate tests from shell scripts

Running Karate tests in a Docker container

Customizing our tests

Integrating Karate tests into GitHub workflows

Summary

Chapter 9: Karate UI for Browser Testing

Chapter 9: Karate UI for Browser Testing

Technical requirements

What Karate UI is for

Writing a basic Chrome scenario

Finding and interacting with elements

Debugging UI tests

Redirecting HTTP calls

Summary

Chapter 10: Performance Testing with Karate Gatling

Chapter 10: Performance Testing with Karate Gatling

Technical requirements

What is Gatling?

Setting up Karate Gatling

Running Karate tests as performance tests

Checking out Gatling reports

Summary

Index

Index

Why subscribe?

Other Books You May Enjoy

Other Books You May Enjoy

Packt is searching for authors like you

Share Your Thoughts

Download a free PDF copy of this book

Creating a new Karate project

Let’s create a new Karate project by following the steps from Chapter 2 in the Setting up a Karate project with the Maven archetype section.

I will call it karate-jsonplaceholder since this is a good description of what it will test. After this is done, you should have a project like this in VS Code:

Figure 3.11 – New Karate project for JSONPlaceholder

Figure 3.11 – New Karate project for JSONPlaceholder

Since we will write our tests ourselves and don’t need additional configurations for now, we can delete the complete examples folder as well as the karate-config.js file. So now, your project should look like this, ready to be filled by us:

Figure 3.12 – Cleaned up Karate project for JSONPlaceholder

Figure 3.12 – Cleaned up Karate project for JSONPlaceholder

In the next step, we will create our first test case.

Adding a new feature file

Let’s add a new scenarios folder under src/test/java that our feature files will be in:

Figure 3.13 – Creating a new folder

Figure 3.13...

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Writing API Tests with Karate

Search

Your notes and bookmarks