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Writing API Tests with Karate

You're reading from   Writing API Tests with Karate Enhance your API testing for improved security and performance

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Product type Paperback
Published in May 2023
Publisher Packt
ISBN-13 9781837638260
Length 326 pages
Edition 1st Edition
Tools
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Author (1):
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Benjamin Bischoff Benjamin Bischoff
Author Profile Icon Benjamin Bischoff
Benjamin Bischoff
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Table of Contents (15) Chapters Close

Preface 1. Part 1:Karate Basics
2. Chapter 1: Introducing Karate’s Core Concepts FREE CHAPTER 3. Chapter 2: Setting up Your Karate Project 4. Chapter 3: Writing Basic Karate Tests 5. Chapter 4: Running Karate Tests 6. Chapter 5: Reporting and Logging 7. Part 2:Advanced Karate Functionalities
8. Chapter 6: More Advanced Karate Features 9. Chapter 7: Customizing and Optimizing Karate Tests 10. Chapter 8: Karate in Docker and CI/CD pipelines 11. Chapter 9: Karate UI for Browser Testing 12. Chapter 10: Performance Testing with Karate Gatling 13. Index 14. Other Books You May Enjoy

Using variables and data tables

Karate allows saving values into variables so we can use the same JSON bodies or values multiple times within one test and don’t have to change them in various places if we want to test with different values. Data tables, on the other hand, allow for a more readable definition of JSON data.

Let’s look at how we can use a variable to reduce the amount of code from our previous scenario.

Using variables

Variables are a very powerful tool in Karate tests. They can hold basically any value type, so they are very flexible.

To declare a simple variable, you can use the def keyword, meaning define. In the following case example, we store the Benjamin string in the myName variable and use it in the print statement:

Scenario: Declaring a variable
    * def myName = 'Benjamin'
    * print 'Hello from', myName

When we run it, this logs Hello from Benjamin, showing us the...

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