# Testing, popular, Testcontainers

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## API Mocking and Testing With Microcks

DevFeed: [API Mocking and Testing With Microcks](<https://devfeed.tech/articles/api-mocking-and-testing-with-microcks-4497.md>)

Original publisher: [Read original article](<https://www.baeldung.com/java-microks-api-mocking-testing>)

Author: Andrei Branza

Published: 2026-08-22T23:20:24Z

Content type: tutorial

Language: en

Sources: [Baeldung](<https://devfeed.tech/sources/baeldung.md>)

Topics: [Mocking](<https://devfeed.tech/topics/mocking.md>), [Testcontainers](<https://devfeed.tech/topics/testcontainers.md>), [API](<https://devfeed.tech/topics/api.md>), [OpenAPI Specification](<https://devfeed.tech/topics/openapi.md>), [Microservices](<https://devfeed.tech/topics/microservices.md>), [Docker Compose](<https://devfeed.tech/topics/docker-compose.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Kafka](<https://devfeed.tech/topics/kafka.md>), [Amazon Simple Queue Service (SQS)](<https://devfeed.tech/topics/amazon-simple-queue-service-sqs.md>), [GraphQL](<https://devfeed.tech/topics/graphql.md>), [gRPC](<https://devfeed.tech/topics/grpc.md>), [Jenkins](<https://devfeed.tech/topics/jenkins.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [compose](<https://devfeed.tech/tags/compose.md>), [docker](<https://devfeed.tech/tags/docker.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [kafka](<https://devfeed.tech/tags/kafka.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [mocking](<https://devfeed.tech/tags/mocking.md>), [openapi](<https://devfeed.tech/tags/openapi.md>), [popular](<https://devfeed.tech/tags/popular.md>), [testcontainers](<https://devfeed.tech/tags/testcontainers.md>), [testing](<https://devfeed.tech/tags/testing.md>), [testing-popular-testcontainers](<https://devfeed.tech/tags/testing-popular-testcontainers.md>)

### AI overview

This tutorial explains how to use Microcks with Testcontainers to generate API mocks from contracts and run conformance tests against real implementations. It covers importing an OpenAPI contract, starting Microcks in a JUnit 5 test, calling generated mock endpoints, and integrating mocking and testing into delivery workflows.

### Source excerpt

Learn how to use Testcontainers integration to spin up Microcks inside a JUnit5 test. The post API Mocking and Testing With Microcks first appeared on Baeldung.