#testing > news > announcing
This Week's Trending
This Month's Trending
Wallabidi is a concurrent browser testing for Elixir. You write a test once and it runs on the cheapest driver that supports it — from an...
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This Year's Trending
Testcontainers
Testcontainers is an Elixir library that supports ExUnit tests, providing lightweight, throwaway instances of common datab...
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PhoenixTest provides a unified way of writing feature tests – regardless of whether you’re testing LiveView pages or static pages.
It al...
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Efx is a library to define and test side effects declaratively. It is basically a very focused mocking framework, reducing implementation...
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Hi,
I am happy to release the Repatch library for mocking and patching implementation in tests and anywhere else. It brings new possibili...
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SeedFactory - a toolkit for test data generation
GitHub | docs | Hex.pm
The main idea of SeedFactory is to generate test data by calling...
New
Hey, Elixir Forum. I’m excited to introduce LiveCapture, a storybook-like library for Phoenix LiveView components.
I like having stories...
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Thanks to Brian @bglusman who provided a very valuable PR to this library, I am to introduce the mutation-testing library for BEAM langua...
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Hello Elixir community! :wave:
I’m excited to announce the first release of ReqCassette, a VCR-style record-and-replay library specifica...
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We just published PaperTiger, a mock Stripe server we built to solve real pain points in our test suite.
The Problem
Testing Stripe int...
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Alike :wavy_dash: - Semantic similarity testing for Elixir
Hey everyone! I’m excited to share Alike, a library for testing semantic simil...
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I’ve been building an Elixir library that I think could be useful to others working with AI coding assistants like Claude Code, Cursor, o...
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Ever struggled with mocking external HTTP services in Elixir tests? Found yourself writing brittle mocks that don’t catch real-world enco...
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Skuld started out as a limited exploratory project, and then it snowballed…
Most Elixir apps have a layer of orchestration code bridging...
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Tired of waiting for slow Ecto sandbox tests ?
At work, we have 45,000 tests - taking 12 minutes on a fast laptop and ~45 minutes of ela...
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ModuleResolver is a library for decoupling module dependencies by easily splitting a module into a behaviour(api) and the implementation....
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Last Three Year's Trending
I’d like to announce Mneme, a snapshot testing tool I’ve been working on.
Docs
Hex
GitHub
I’ll ke...
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TL;DR: library to conveniently spawn throwaway docker containers for your integration/functional tests. Not stable yet. Written by an Eli...
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Hi everyone!
TestServer is an easy way to mock third-party services in ExUnit.
Features
HTTP/1
HTTP/2
WebSocket
TLS with self-signed c...
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Source on GitHub. Full docs can be found here.
It hasn’t been released on hex.pm yet. Please don’t steal the package name :slight_smile:...
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I wanted to release v0.1.0 of this library in 2023, that’s why it’s still very much WIP, although fully functional already.
There was an...
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We developed Blend a new hex package that solves the problem of testing your library against different version of its dependencies.
For ...
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I made ensemble for testing ARIA roles in Phoenix LiveView. If you’ve ever used react-testing-library or Playwright you might have come a...
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This library was created to test the presence of elements in a rendered component using their data-test attributes, data-test attribute v...
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Hello everyone,
I created websocket_mock - a library to test WebSocket based interfaces of clients and servers.
It allows to preconfigu...
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I finally got around to open-sourcing some of the Elixir code I wrote about in my blog post about achieving frontend/backend type safety ...
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Trending Over Three Years
Hi, colleagues!
I’ve discovered this awesome forum recently and I wanna share my projects and ideas.
First of all, I create a topic abo...
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Hi everyone,
We are releasing assert_value. assert_value is ExUnit’s assert on steroids that writes and updates tests for you.
You can ...
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I recently started working with pure Erlang and when I got back to Elixir there was one thing that I was truly missing - Common Test, whi...
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Stubr
In functional languages you should write pure functions. However, sometimes we need functions to call external API’s. But these aff...
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I created this lib to learn more about code compilation in Elixir, about ex_unit and also as an excuse to experiment working with the AST...
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I’ve just made Muzak and Muzak Pro available!
Muzak is a mutation testing library for Elixir applications, and Muzak Pro is the full-fea...
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Watermelon is the small library for BDD that uses Gherkin syntax. This library is heavily inspired by the Cabbage, but takes slightly dif...
New
https://github.com/msz/hammox
I’m a big fan of rigorous unit testing. I believe most slow integrated tests can be replaced by unit test...
New
Darwin - Mutation Testing for Elixr
I’ve been working on a mutation testing library for Elixir for a while now. It’s named Darwin, becaus...
New
There is long running issue on stream_data library to implement such functionality. In the meanwhile I have created this small library (s...
New
Hi!
I spent some hours the last few days to put together a simple helper to check that code examples in README.md files can actually be ...
New
Hello everyone!
I have created a simple library for creating snapshot-tests :camera_with_flash:
Please let me know what you think :wink...
New
I just released the first version of ExWaiter - A helper for waiting on asynchronous conditions to be met.
https://hexdocs.pm/ex_waiter/...
New
Detour is a utility for writing tests against a real SMTP server.
Rather than mocking/stubbing your SMTP client Detour allows you to sen...
New
https://github.com/dsdshcym/promox
Why would you choose Protocol/Promox over Behaviour/Mox?
See this blog post for when to use Protocol ...
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