What is a contract testing?

What is a contract testing?

Contract testing is the interrogation of a deployed or mocked services endpoint to get information back or define an endpoint in testing prior to deployment. It provides complimentary testing coverage each time a change is planned or made to your code.

What is consumer contract testing?

Consumer driven contract testing is a type of contract testing that ensures that a provider is compatible with the expectations that the consumer has of it.

What is the approach taken to test microservices?

You can test your microservice with a production instance of another microservice. For example, during testing of microservice A, you connect it to a production instance of microservice B and test them together before releasing microservice A to production. You can test a microservice with third-party dependencies.

How is contract testing different from integration testing?

Contract testing tests that any pair of dependent services can properly send and decode messages between each other, but doesn’t test the services’ internal logic. As such, contract testing exists somewhere on the boundary between integration testing and end-to-end testing.

What do you need to know about contract testing?

What is contract testing? Contract testing is the interrogation of a deployed or mocked services endpoint to get information back or define an endpoint in testing prior to deployment. It provides complimentary testing coverage each time a change is planned or made to your code.

How does Pact implement contract testing and why should I try it?

How does Pact implement contract testing Pact is a code-first contract testing tool, that requires access to the code on both sides of an integration point. To be able to write Pact tests, you need to be able to write a unit test of the consumer, and to be able to manipulate state (usually within the context of a unit test) on the provider side.

How does B to consumer contract testing work?

The consumer B produces a “B to A consumer contract file” that contains example requests and responses that it expects from A. B will contain a consumer test that produces this file and checks that B behaves correctly when it receives these expected responses from A.