In our example, we have a small user management repository, with some simple methods like a healthcheck, admin creation and sign in, user creation and sign in, etc. This template might generate files or tools that we might not need, so I’m going to show you a simple step by step process to create your JMeter test suite from scratch in an automatized manner. JMeter has a template and a guide on its own oficial documentation to create and use this method to intercept the communications between client and server. For this example, we’ll be using JMeter version 5.0. In this example we’ll be using the test migration between Postman and JMeter, but you can also assume that through this same method you can create tests from scratch with your own browser, intercepting the communications between your frontend and backend. The method we’re about to use to migrate our Postman tests to JMeter will use this last one as a proxy between Postman and our server or API. But that’s precisely what I’m about to show you next: an easy way to migrate Postman tests to JMeter so you can enjoy the benefits of using this tool. So, you might be considering adopting this tool, but right now all your functional tests are running on Postman? Migrating them one by one could indeed prove a daunting task. Also, it allows a pretty smooth incorporation to our pipeline, since its dockerization is pretty simple.Īnother JMeter benefit over Postman is that, aside from functional tests, it allows us to run performance and stress tests on multiple threads of execution over our application. This tool is pretty easy to use, really facilitating the automatization process and intuitively adding assertions to validate our API’s responses, both when these are positive or when we’re expecting an exception and/or an error message. To summarize, Apache JMeter is an open source application designed to run functional tests against our system and measure its performance. Here is when Apache JMeter makes its entrance. When our server scales or we simply want to automatize our tests in a pipeline, Postman can prove quite challenging to use for our testing needs, specially if we also want to measure performance. Even though these can be automatized via command line with Newman, the most common use of this tool is to create manual tests during an API’s development. Noawadays, one of the most used tools to do functional testing against an API is Postman. Automatizing a Postman test with JMeter.
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