Testcontainers
Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container. (by testcontainers)
MockServer
MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS with clients written in Java, JavaScript and Ruby. MockServer also includes a proxy that introspects all proxied traffic including encrypted SSL traffic and supports Port Forwarding, Web Proxying (i.e. HTTP proxy), HTTPS Tunneling Proxying (using HTTP CONNECT) and SOCKS Proxying (i.e. dynamic port forwarding). (by mock-server)
Testcontainers | MockServer | |
---|---|---|
13 | 7 | |
8,217 | 4,724 | |
0.6% | 0.7% | |
9.5 | 0.0 | |
3 days ago | 6 days ago | |
Java | Java | |
MIT License | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Testcontainers
Posts with mentions or reviews of Testcontainers.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-11.
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One Container to Rule Them All - Until It Doesn’t
There are a handful of ways to start Testcontainers, including JUnit4 annotations, JUnit5 annotations, ApplicationContextInitializer, JDBC URL scheme, and manual container lifecycle control. Let's choose manual control for now as the least "magic" option:
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Top Resources to Learn Testcontainers
Repository
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Testcontainers
except the parent is wrong (at least the Java impl). see:
https://github.com/testcontainers/testcontainers-java/blob/m...
https://github.com/testcontainers/testcontainers-java/blob/m...
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Reasons to Drop Docker for Podman
> I wonder if Rancher Desktop, et al, works with testcontainers.org?
I don't use testcontainers myself, but it looks like as long as you are using Rancher Desktop >= 1.0.1 you should be just fine.[1]
[1] https://github.com/testcontainers/testcontainers-java/issues...
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K1s.me - Simplifying Kubernetes Journey for newbie’s
Thanks for the feedback. You are right, and there are some other mock-up alternatives as well, a good one for developers https://testcontainers.com/
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Database Testing with Testcontainers and Kotlin Exposed ORM
In this article, we will explore how to use Testcontainers and Exposed, a lightweight ORM framework for Kotlin, to create a controlled environment for testing MySQL Database operations.
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Spring Boot 3.1 RC1 is here - with support for Testcontainers and docker compose
Unfortunately, it still remains hard to use Testcontainers because of how wedded it is to junit4, five years after the release of junit 5. https://github.com/testcontainers/testcontainers-java/issues/970
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Spring, SchemaSpy DB docs, and GitHub Pages
Finally, we put the directory with generated contents (HTML, CSS, JS) into a tarball. Testcontainers library allows to copy files from a container to the OS but not directories. That’s why we need an archive inside the SchemaSpy container.
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Spring Cloud Gateway 4.0.0-RC2 native example with Testcontainers
This repository provides a BuildImageTest that uses the buildpack to create a native image. It then tests the native image, using Testcontainers and JUnit. Building the native image with AOT processing, as part of a test, takes minutes not seconds, and should not be part of normal "inner loop" development. So the BuildImageTest is in a separate sourceSet and can be executed independently. This is a very powerful pattern, that I'm just getting started with. I would love to hear your thoughts on this pattern or other alternatives to it.
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Testcontainers for Hashicorp Consul and Vault
The list goes on. Check out the full list of Testcontainer modules.
MockServer
Posts with mentions or reviews of MockServer.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-10-13.
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MockServer: Easy mocking of any system you integrate (HTTP or HTTPS)
There are several strategies to solve this kind of challenge, but today we will see MockServer as a tool to resolve it.
- "Where is James?" – A reminder to choose your open-source libraries wisely
- "Where Is James?"
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Please recommend a good API Mocking tool
The open-source examples are mockoon, mock-server.com, etc.
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USING CI/CD to test multiple layered applications
using something to mock out responses like: https://github.com/mock-server/mockserver
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Testing with MockServer
I've just found out MockServer and it looks awesome 🤩 so I wanted to check it out repeating the steps of my previous demo WireMock Testing which (as you can expect) uses WireMock, another fantastic tool to mock APIs.
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How to unit test successful Oauth requests of 3rd party API's?
I tend to use MockServer. With MockServer you can define inputs, so you can say that the request should look like this with that URL, etc etc. That way you can verify that the request looks okay.
What are some alternatives?
When comparing Testcontainers and MockServer you can also consider the following projects:
Mockito - Most popular Mocking framework for unit tests written in Java
WireMock - A tool for mocking HTTP services
GreenMail - Official master for the Greenmail project
REST Assured - Java DSL for easy testing of REST services