Pact PoC

Proof of concept for service and service contract testing.

In this PoC, we explore how contract testing with Pact can be done for a basic CRUD app. provider is the application that provides a set of CRUD API end-points to manage discounts, leveraging sqlite as the data store. consumer is the application that invokes API call to create/read/update/delete discounts. In a real world scenario, these 2 applications may belong to different code bases, but for the sake of simplicity, we have both application source codes in the same code base.

Because Pact is consumer-driven, we can start exploring consumer_test.go, which asserts the consumer's expectation of the API and produces the expectation result in a special formatted file that can be understood by Pact verifier. provider is where the verification process works in which all assertions are applied against the API to ensure it meets what's expected by the consumer, check out provider_test.go for more info

Pre-requisites

• Install pact-go version 2 by this command go install github.com/pact-foundation/pact-go/v2@2.x.x
• Download and install all the required libraries by this command pact-go -l DEBUG install
• Install sqlite

Folder Structure

• provider is an HTTP server that provides a CRUD API, storing data in sqlite.
• consumer provides an HTTP client to call the CRUD API.
• pact is where the contract between the Consumer and the Provider is stored.

Contract Test

• To run consumer test, navigate to the root directory of the repository, then run go test -v ./consumer/.... This will produce a pact file under /pacts
• To run provider test, navigate to the root directory of the repository, then run go test -v ./provider/providertest/...