An Overview of PactumJS: A Lightweight Contract Testing Framework


Your search for a JavaScript-based API automation utility that can assist in API testing at all of the stages in a Test Pyramid can come to an end here with PactumJS, which is an open-source framework. It makes testing backends both quicker and more exciting, which is a huge benefit. This framework provides you with all of the essential components, allowing you to create improved API automation tests in an easy and beneficial manner. PactumJS is an end-to-end, integration QA Application Testing Services, contract, and component (or service level) tool that uses the REST API.

PactumJS, on the other hand, was developed with testing in mind from the ground up, in contrast to the many HTTP clients, HTTP servers, and validation programs that are accessible in the Node.js environment. It was created with a disk and an agreement in mind. Although the early versions of this software were interoperable with them, it eventually evolved into a standalone testing application.

What exactly is PactumJS in contract testing?

Contract testing is a technique for assuring that when two separate networks interact, they speak the same language.

Providers and customers are the two essential components that allow us to categorize each service in our systems, respectively.

Systems that originate and/or change the data that will be ingested later on are known as providers. They are essentially in receipt of the proposal. A provider could be, for instance, a service that scans a database and gives a summarized perspective of the data to whoever asks for it. This would qualify as an example of a provider.

Systems that make a request for information to a supplier are known as consumers. Consumers initiate inquiries. For instance, the front end of a website may make a data request through an application programming interface (API) in order to present some information regarding the merchandise.

Why API contract testing will be done in PactumJS in the future?

  1. PactumJS is a game-changing utility for evaluating API contracts, and it is on its way to becoming the standard for this vital procedure in the near future. This utility is intended to streamline the process of evaluating APIs, thereby making it more effective, and to assist developers in rapidly and easily checking any errors that may exist in the API code they have written.
  2. PactumJS’s capacity to facilitate the testing of APIs in isolation is one of the most significant benefits offered by the framework.
  3. Another advantage of using PactumJS is that it has the capability to automatically generate test cases. Because of this feature, developers are given the ability to quickly construct tests that are dependent on the API contract, which is specified using JSON. This frees up the developers to concentrate on other elements of their work.
  4. In addition, PactumJS is extremely versatile, which enables developers to evaluate in local, intermediate, and production environments.

Beginning your journey with PactumJS

You should give PactumJS a shot if increasing the quality of the tests you run on API contracts is a priority of yours. The following is a list of the actions that need to be taken to begin using PactumJS:

  1. Install Node.js

Because PactumJS is a program for Node.js, it can be easily available from its website. it is essential that you have Node.js already installed on your computer.

  1. Install PactumJS

npm, which is the package manager for Node.js, can be utilized to install PactumJS on your computer. To execute this instruction, open your command window and enter the following: ‘npm install –save-dev pactum’

  1. Create a test file

After PactumJS has been successfully installed, you will be able to generate a test file. You will need to be familiar with the grammar of PactumJS in order to specify the tests for your contracts here.

  1. Run the tests you performed

You can put your tests through their speeds by entering the command “npm test” into the command window on your system. This will run the test file you provided through its paces and produce the findings.

  1. Examine your results.

After you have completed all of your tests, you can check the results to determine which ones were unsuccessful. If a test fails, you can look for errors and make the necessary modifications.

Bottom Line

With the rise of mobile applications and cloud-based software, the need for QA Application Testing Services has become more important than ever before, as it can greatly impact the success and reputation of a business. PactumJS is quickly becoming more popular among developers thanks to its syntax which is simple to understand and its strategy which is uncomplicated. It can transform the process of software testing into an efficient and satisfying activity.

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