Postman

Cypress is not just UI automation tool . It can be used for testing APIs as well . Even though we have other tools like Postman, Newman, Rest Assured, SOAP UI etc for testing APIs, I believe cypress is a good alternative for testing API. It will help to use same tool for both UI and API test automation. Demo Let us look at a sample API test case. In below example, we trigger a API call to http://services.groupkt.com/country/get/iso2code/AU and validate below in the response. ...

In previous blog post, we saw how to use BDD format for writing test cases in postman. Most important part of writing tests in postman is understanding various features available. Let us explore various options available . The examples specified in postman documentation, have lot of information about how to setup postman bdd, use chai http assertions, create custom assertions and use before and after hooks. Please import them into postman and try that by yourself to familiarise with postman BDD. Below is only few examples from them. ...

In Previous blog post,we discussed about how to use postman and how to use collections using newman and data file. If you haven’t read that , please have a read through first . In previous examples, we discussed about writing tests/assertions in postman. We followed normal Javascript syntax for writing test cases including asserting various factors of response ( like content , status code etc). Eventhough this is a straightforward way of writing, many people would like to use existing javascript test library like Mocha. They can use postman - bdd libraries. ...

One of the common requirement for automated testing is to run same test case against multiple test data. Luckily postman supports this by providing facility to use data files. This is available only when we run through postman collection runner or newman. For this example, let us take a free public API http://services.groupkt.com/country/get/iso2code/AU . This API will return the name of the country depending on the 2 digit code passed. Let us assume that, we need to test this API with multiple country codes. For eg: AU, IN, GB etc. Let us take a look to see how this can be achieved using postman data files. ...

In previous blog, I explained about how to create a GET request, analyze its response, write test cases for API and to save details to a collection for future use. In this blog, let me explain about how to run collections using Newman. What is Newman Newman is a command line collection runner for postman. Newman also has feature parity with Postman and it runs collection in the same way how it is run through Postman. Newman also makes it easier to integrate API test case execution with other systems like Jenkins. ...

Recently one of my colleagues has asked me to train him on using postman and Newman for API testing. Below is a cut down version of training session which I took for him. What is Postman Postman is an Http client for testing web services. It has a friendly GUI for constructing request and analyzing the response. There is a command line tool called Newman for running the postman collections from command line. This will help to integrate postman to other testing tools. ...