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contract-testing

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goldbergyoni / javascript-testing-best-practices

📗🌐 🚢 Comprehensive and exhaustive JavaScript & Node.js testing best practices (August 2025)

react nodejs javascript testing angular express mocha jest ci mutation-testing test integration-testing mutation chai e2e-tests unittest e2e cicd contract-testing

Updated Jun 27, 2024
JavaScript

karatelabs / karate

Sponsor

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Test Automation Made Simple

testing automation microservices webdriver bdd mock-server load-testing assertions test-automation cucumber developer-tools testing-tools api-testing contract-testing automated-testing testing-framework

Updated Aug 28, 2026
Java

pact-foundation / pact-ruby

Star

Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.

pact contract-testing hacktoberfest smartbear-supported

Updated Aug 14, 2026
Ruby

Redocly / redocly-cli

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⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

linter openapi cicd contract-testing swagger2 redoc openapi3 api-governance asyncapi openapi-cli redocly openapi31 arazzo

Updated Aug 28, 2026
TypeScript

pact-foundation / pact-jvm

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JVM version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.

pact contract-testing hacktoberfest consumer-driven-contracts smartbear-supported

Updated Aug 12, 2026
Kotlin

pact-foundation / pact-net

Star

.NET version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.

csharp dotnet apis pact contract-testing pact-net smartbear-supported

Updated Aug 10, 2026
C#

pact-foundation / pact_broker

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Enables your consumer driven contracts workflow

verification provider consumer pact contract-testing hacktoberfest consumer-driven-contracts pact-broker hal-browser smartbear-supported

Updated Aug 27, 2026
Ruby

apideck-libraries / portman

Star

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀

testing api cli integration-testing swagger openapi test-framework cli-app oas api-testing contract-testing postman-collection testrunner postman-collections cli-option contract-first openai-tooling

Updated Aug 9, 2026
TypeScript

Python version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.

apis pact contract-testing hacktoberfest smartbear-supported

Updated Aug 27, 2026
Python

pactumjs / pactum

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REST API Testing Tool for all levels in a Test Pyramid

nodejs javascript testing bdd integration-testing mock-server cucumber api-testing contract-testing component-testing e2e-testing test-pyramid pactum pactumjs

Updated Aug 11, 2026
JavaScript

msz / hammox

Star

🏝 automated contract testing via type checking for Elixir functions and mocks

Updated Aug 28, 2026
Elixir

specmatic / specmatic

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Eliminate API integration headaches with Specmatic's no-code AI-powered API development suite. Teams ship APIs 10x faster by transforming specifications into executable contracts instantly—no coding required, no integration surprises.

graphql redis microservices jdbc wsdl overlay grpc openapi service-virtualization contract-testing backward-compatibility cdd openapi3 asyncapi contract-driven-development specmatic

Updated Aug 28, 2026
Kotlin

EXXETA / openapi-cop

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A proxy that validates responses and requests against an OpenAPI document. https://www.npmjs.com/package/openapi-cop https://hub.docker.com/r/lxlu/openapi-cop

validation data-validation proxy swagger openapi contract-testing

Updated Aug 28, 2026
TypeScript

azagniotov / stubby4j

Sponsor

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HTTP/1.1, HTTP/2 and WebSockets stub server for stubbing distributed web services in Docker and non-containerized environments for integration and contract testing

Updated May 28, 2025
Java

pact-foundation / pact-specification

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Describes the pact format and verification specifications

specification pact contract-testing smartbear-supported

Updated Apr 11, 2024

pact-foundation / pact-php

Star

PHP version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project

apis pact contract-testing hacktoberfest

Updated Aug 21, 2026
PHP

andreschaffer / microservices-testing-examples

Star

Microservices Testing in practice.

java testing microservices microservices-testing pact contract-testing pact-jvm contract-tests consumer-driven-contract-testing

Updated Aug 27, 2026
Java

mockzilla / mockzilla

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Open-source OpenAPI mock server with cloud hosting and local modes for development, testing, and CI. Generates realistic API responses from specs with latency simulation, error injection, proxy fallback, and request validation. Validated against 2,200+ real-world OpenAPI specs.