Ginkgo is a BDD-style Go testing framework built to help you efficiently write expressive and comprehensive tests. It is best paired with the Gomega matcher library but is designed to be matcher-agnostic.

Ginkgo - BDD Testing Framework for Go

Jepsen is a Clojure library. A test is a Clojure program which uses the Jepsen library to set up a distributed system, run a bunch of operations against that system, and verify that the history of those operations makes sense. Jepsen has been used to verify everything from eventually-consistent commutative databases to linearizable coordination systems to distributed task schedulers. It can also generate graphs of performance and availability, helping you characterize how a system responds to different faults. 
A Jepsen test runs as a Clojure program on a control node. That program uses SSH to log into a bunch of db nodes, where it sets up the distributed system you're going to test using the test's pluggable os and db. 

Once the system is running, the control node spins up a set of logically single-threaded processes, each with its own client for the distributed system. A generator generates new operations for each process to perform. Processes then apply those operations to the system using their clients. The start and end of each operation is recorded in a history. While performing operations, a special nemesis process introduces faults into the system--also scheduled by the generator. 

Finally, the DB and OS are torn down. Jepsen uses a checker to analyze the test's history for correctness, and to generate reports, graphs, etc. The test, history, analysis, and any supplementary results are written to the filesystem under store/<test-name>/<date>/ for later review. Symlinks to the latest results are maintained at each level for convenience.

Jepsen is a Clojure library. A test is a Clojure program which uses the Jepsen library to set up a distributed system, run a bunch of operations against that system, and verify that the history of those operations makes sense. Jepsen has been used to verify everything from eventually-consistent commutative databases to linearizable coordination systems to distributed task schedulers. It can also generate graphs of performance and availability, helping you characterize how a system responds to different faults.

Jepsen - A framework for distributed systems verification, with fault injection

Selenium is a suite of tools such as Selenium IDE, Selenium Remote Control and Selenium Grid to test the web application. Selenium IDE is an integrated development environment for Selenium scripts. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests. It supports record and playback. 
 Selenium Remote Control (RC) is a test tool that allows you to write automated web application UI tests in any programming language against any HTTP website using any mainstream JavaScript-enabled browser. It is great for testing complex AJAX-based web user interfaces under a Continuous Integration system. Selenium Grid transparently distribute your tests on multiple machines so that you can run your tests in parallel. <img src="/AppImages/Article/selenium-ide.gif" alt="" class="float-center">

Selenium is a suite of tools such as Selenium IDE, Selenium Remote Control and Selenium Grid to test the web application. Selenium IDE is an integrated development environment for Selenium scripts. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests. It supports record and playback.

Selenium - Web app testing tool

MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.

MailCatcher - Catches mail and serves it through a dream

Japa is an API-first testing framework. It focuses only on testing Node.js (backend) applications, thus resulting in a fast, small, and simple tests runner. 
<ul>
<li>Support for <a href="https://japa.dev/grouping-tests" rel="nofollow">test groups</a>, timeout, todo tests and <a href="https://japa.dev/underlying-test-class#fails" rel="nofollow">regression tests</a>.</li>
<li>Support for <a href="https://japa.dev/datasets" rel="nofollow">Datasets</a>.</li>
<li>Assertion libraries with support for <a href="https://japa.dev/assertion-planning" rel="nofollow">assertion planning</a>.</li>
<li>Ability to <a href="https://japa.dev/filtering-tests" rel="nofollow">filter</a> and run specific or only failing tests.</li>
<li>Re-imagined <a href="https://japa.dev/lifecycle-hooks" rel="nofollow">lifecycle hooks</a>.</li>
<li>Multiple <a href="https://japa.dev/plugins/spec-reporter" rel="nofollow">reporters</a> to display tests progress.</li>
<li>Great CLI experience with pretty diffs and formatted error stacks.</li>
<li>Works with ESM and <a href="https://japa.dev/usage-with-typescript" rel="nofollow">TypeScript</a> both with zero additional setup.</li>
</ul>

Japa is an API-first testing framework. It focuses only on testing Node.js (backend) applications, thus resulting in a fast, small, and simple tests runner. 

Japa - API-first testing framework

GreenMail is an open source, intuitive and easy-to-use test suite of email servers for testing purposes. Supports SMTP, POP3, IMAP with SSL socket support. GreenMail also provides a JBoss GreenMail Service. GreenMail is the first and only library that offers a test framework for both receiving and retrieving emails from Java.

greenmail - Official master for the Greenmail project

Splinter is an open source tool for testing web applications using Python. It lets you automate browser actions, such as visiting URLs and interacting with their items. Splinter is an abstraction layer on top of existing browser automation tools such as Selenium, PhantomJS and zope.testbrowser. It has a high-level API that makes it easy to write automated tests of web applications. It has drivers for Chrome and Firefox for browser-based testing, and zope.testbrowser and PhantomJS for headless testing.
 
Its features include: 
<ul>
<li>simple api</li>
<li>multi webdrivers (chrome webdriver, firefox webdriver, phantomjs webdriver, zopetestbrowser, remote webdriver)</li>
<li>css and xpath selectors</li>
<li>support to iframe and alert</li>
<li>execute javascript</li>
<li>works with ajax and async javascript</li>
</ul>

Splinter is an open source tool for testing web applications using Python. It lets you automate browser actions, such as visiting URLs and interacting with their items. Splinter is an abstraction layer on top of existing browser automation tools such as Selenium, PhantomJS and zope.testbrowser. It has a high-level API that makes it easy to write automated tests of web applications. It has drivers for Chrome and Firefox for browser-based testing, and zope.testbrowser and PhantomJS for headless testing.

Splinter - Python test framework for web applications

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Ginkgo - BDD Testing Framework for Go

Jepsen - A framework for distributed systems verification, with fault injection

Selenium - Web app testing tool

MailCatcher - Catches mail and serves it through a dream

Japa - API-first testing framework

greenmail - Official master for the Greenmail project

Splinter - Python test framework for web applications

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Ginkgo - BDD Testing Framework for Go

Jepsen - A framework for distributed systems verification, with fault injection

Selenium - Web app testing tool

MailCatcher - Catches mail and serves it through a dream

Japa - API-first testing framework

greenmail - Official master for the Greenmail project

Splinter - Python test framework for web applications

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