As an automation tester, you’re likely always on the lookout for ways to streamline your workflow and get things done more efficiently. One tool that can help you with that is Groovy.

Groovy is a powerful scripting language for the JVM that can be used for a variety of tasks, including test automation. In this post, we’ll show you how you can use Groovy scripts to automate your tests with Postman.

We’ll go over how to set up your environment, write a few simple scripts, and run them in Postman. By the end of this post, you’ll be well on your way to automating your tests with Groovy and Postman!

What is Groovy?

Groovy is a dynamic, weakly typed language for the Java Virtual Machine (JVM). It’s syntax is similar to that of Java, but with some additional dynamic features that make it more concise and expressive.

Groovy is often used for scripting, build automation, and general-purpose programming. It’s also a popular choice for test automation due to its concise syntax and ability to interact with Java code.

How to set up your environment

Before we get started with writing Groovy scripts, we need to set up our environment.

First, you’ll need to install the Groovy plugin for your IDE or text editor. This will give you syntax highlighting and code completion for Groovy code.

Next, you’ll need to install the Postman Collection Runner. This will allow you to run Postman collections from the command line.

Once you’ve installed the Collection Runner, you’ll need to set up your environment variables. The Collection Runner will read these variables from a file called postman_environment.json.

You can find an example postman_environment.json file in the Postman Collection Runner repo.

“id”: “your-environment-id”,
“name”: “your-environment-name”,
“values”: [
“key”: “your-key”,
“value”: “your-value”,
“enabled”: true
“_postman_variable_scope”: “environment”

Once you’ve set up your environment variables, you’re ready to write some Groovy scripts!

How to write Groovy scripts

Groovy scripts are typically written in .groovy files. In our example, we’ll create a file called test.groovy.

The first thing we need to do is import the Postman collections we want to use in our script. We can do this with the following code:

import com.postman. collections.*

Next, we need to instantiate a PostmanRunner object. This object will be used to run our collections. We can do this with

Other related questions:

What is a Postman test script?

Postman tests can be written in JavaScript, and they run within the Postman sandbox. The Postman sandbox initializes some basic objects and variables to get you started.

Does Postman support groovy?

Postman does not support Groovy directly. However, you can use the Groovy Scripting Engine to execute Groovy code within Postman.

What is automation testing in Postman?

Automation testing in Postman is the process of automating the testing of your API endpoints using Postman’s built-in scripting capabilities. This allows you to quickly and easily test your API endpoints without having to manually make HTTP requests.

How do you automate scripts using Postman?

There is no one-size-fits-all answer to this question, as the approach you take will depend on the specific needs of your project. However, some tips on how to automate scripts using Postman include using the Collection Runner tool to run collections of tests automatically, and using the Newman command-line tool to run Postman tests from a Continuous Integration (CI) server.


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