Surprisingly, even though RESTful microservices are everywhere nowadays, open source tools for automated testing of such hardly exist.
How about tools which can consume the OpenAPI (Swagger) description of REST APIs and generate tests, including test data, based on this information? Such automated testing nirvana truly exists!
We've been talking about the concept of an API Economy for a while now. Over the past few years we've seen most software products move away from individual installations, into the Cloud, providing a "software-as-a-service" model for the consumption of their features. When one starts refering to software as a service, APIs become indispensible.
The OpenAPI Specification (formally known as Swagger) describes APIs in a way that is standardized, machine-readable, and programming language-agnostic. It is an open source project hosted by the Linux Foundation.
There have been many announcements regarding frameworks or tools supporting this standard: For example, Eclipse MicroProfile 1.3 provides a set of annotations that can be used on top of JAX-RS, and version 3.5.2 of Eclipse Vert.x provides automatic requests validation.
