Contract Testing with OpenAPI
Wait, is that really possible?
Contract testing has emerged as a trending topic for developers and teams working with APIs. There is already a pyramid of layers of testing, so do we need another one? What is special about it and what is the value?
But most importantly, from my OpenAPI specification can I implement contract testing?
In this article: let’s talk contract testing with OpenAPI. Is OpenAPI “ready” for contract testing? What are the options, challenges and opportunities?
The question at hand is whether it is possible to implement contract testing using an OpenAPI file. Let me answer this: the answer is no. However, if you continue reading, I will elaborate on the limitations and explore options to address them. 😎
Check out also Testcontainers with OpenAPI to see Contract Testing in action with TestContainers.
What is Contract Testing
There is plenty of literature on contract testing, thanks to various tools that have made a breakthrough, with Pact as the leading example. For a clear and simple “getting started” you can start from here.
A good definition of contract testing is a testing technique that makes sure the API consumer and provider meet each other’s…
