JVM implementation of the consumer driven contract library pact.
From the Ruby Pact website:
Define a pact between service consumers and providers, enabling "consumer driven contract" testing.
Pact provides an RSpec DSL for service consumers to define the HTTP requests they will make to a service provider and the HTTP responses they expect back. These expectations are used in the consumers specs to provide a mock service provider. The interactions are recorded, and played back in the service provider specs to ensure the service provider actually does provide the response the consumer expects.
This allows testing of both sides of an integration point using fast unit tests.
This gem is inspired by the concept of "Consumer driven contracts". See https://martinfowler.com/articles/consumerDrivenContracts.html for more information.
Read Getting started with Pact for more information on how to get going.
- Twitter: @pact_up
- Slack: Join the chat at https://slack.pact.io/
- Stack Overflow: https://stackoverflow.com/questions/tagged/pact
- For examples of using pact-jvm with spring boot, have a look at https://github.com/Mikuu/Pact-JVM-Example and https://github.com/mstine/microservices-pact
Learn everything in Pact in 60 minutes: https://github.com/pact-foundation/pact-workshop-jvm-spring.
The workshop takes you through all of the key concepts of consumer and provider testing using a Spring boot application.
|Branch||Specification||JDK||Kotlin Version||Latest Version|
|4.2.x master||V4 (1)||11-15 (2)||1.4.32||4.2.10|
- 1: V4 specification support is a work in progress. See Pact V4 RFC.
- 2: v4.2.x may run on JDK 16, but the build for it does not.
|Branch||Specification||JDK||Kotlin Version||Scala Versions||Latest Version|
NOTE: The JARs produced by this project have changed with 4.1.x to better align with Java 9 JPMS. The artefacts are now:
Pact-JVM has a number of ways you can write your service consumer tests.
You want to look at: Consumer
As part of the V3 pact specification, we have defined a new pact file for interactions with message queues. For an implementation of a Groovy consumer test with a message pact, have a look at PactMessageBuilderSpec.groovy.
Once you have run your consumer tests, you will have generated some Pact files. You can then verify your service providers with these files.
You want to look at: pact gradle plugin
You want to look at: pact maven plugin
You want to look at: pact leiningen plugin
You want to look at: provider
As part of the V3 pact specification, we have defined a new pact file for interactions with message queues. The Gradle pact plugin supports a mechanism where you can verify V3 message pacts, have a look at pact gradle plugin. The JUnit pact library also supports verification of V3 message pacts, have a look at junit.
The pact-jvm libraries are pure jvm technologies and do not have any native dependencies.
However, if you have a ruby provider, the json produced by this library is compatible with the ruby pact library. You'll want to look at: Ruby Pact.
For .Net, there is Pact-net.
For JS, there is Pact-JS.
For Go, there is Pact-go.
For Rust, there is Pact-Rust.
Have a look at implementations in other languages.
There's a limit to how much we can help, however check out pact-jvm-server
You want to look at: Pact Broker
Which is a project that aims at providing tooling to coordinate pact generation and delivery between projects.