Testing Gems

#Total RankDaily RankNameSummary
11412minitestminitest provides a complete suite of testing facilities supporting TDD, BDD, and bench...
229107rspecBDD for Ruby
3118171webmockWebMock allows stubbing HTTP requests and setting expectations on HTTP requests.
4133396knapsackParallel tests across CI server nodes based on each test file's time execution. It gene...
5145154capybaraCapybara is an integration testing tool for rack based web applications. It simulates h...
6146153selenium-webdriverSelenium implements the W3C WebDriver protocol to automate popular browsers. It aim...
7148200factory_botfactory_bot provides a framework and DSL for defining and using factories - less error-...
8153215fakerFaker, a port of Data::Faker from Perl, is used to easily generate fake data: names, ad...
9200244shoulda-matchersShoulda Matchers provides RSpec- and Minitest-compatible one-liners to test common Rail...
10204380timecopA gem providing "time travel" and "time freezing" capabilities, making it dead simple t...
11210398springPreloads your application so things like console, rake and tests run faster
12323336parallel_testsRun Test::Unit / RSpec / Cucumber / Spinach in parallel
13327384vcrRecord your test suite's HTTP interactions and replay them during future test runs for ...
14521566cucumberBehaviour Driven Development with elegance and joy
15544218test-unittest-unit (Test::Unit) is unit testing framework for Ruby, based on xUnit principles. T...
16550442mochaA library for mocking and stubbing with a unified, simple and readable syntax for both ...
17662227power_assertPower Assert shows each value of variables and method calls in the expression. It is us...
18740489rspec-parameterizedRSpec::Parameterized supports simple parameterized test syntax in rspec.
197871,578ffakerFfaker generates dummy data.
207971,176fuubarthe instafailing RSpec progress bar formatter
211,1571,253watirWatir stands for Web Application Testing In Ruby It facilitates the writing of automate...
221,2442,694poltergeistPoltergeist is a driver for Capybara that allows you to run your tests on a headless We...
231,4203,138undercoverActionable code coverage - detects untested code blocks in recent changes
241,9831,583appraisalAppraisal integrates with bundler and rake to test your library against different versi...
252,0032,991minitest-hooksminitest-hooks adds around and before_all/after_all/around_all hooks for Minitest. This...
262,0872,542fabricationFabrication is an object generation framework for ActiveRecord, Mongoid, Sequel, or any...
272,0892,877rrRR is a test double framework that features a rich selection of double techniques and a...
282,3084,134sporkA forking Drb spec server
292,3282,765cuke_modelerThis gem facilitates modeling a test suite that is written in Gherkin (e.g. Cucumber, S...
302,7404,144forgeryEasy and customizable generation of forged data. Can be used as a gem or a rails plugin...
313,0633,039arubaExtension for popular TDD and BDD frameworks like "Cucumber", "RSpec" and "Minitest", t...
323,6227,172rspec-watcherAutomatically runs specs in reaction to changes in files. Loads the project once and us...
333,7554,319test_xmlTest your XML with Test::Unit, MiniTest, RSpec, or Cucumber using handy assertions like...
343,9394,819puppet_litmusProviding a simple command line tool for puppet content creators, to enable simple and ...
354,1817,076ruby-jmeterRuby based DSL for writing JMeter test plans
364,2826,055spinachSpinach is a BDD framework on top of gherkin
374,4536,256machinistFixtures aren't fun. Machinist is.
385,15710,298nyan-cat-formatterNyan Cat inspired RSpec formatter!
395,3347,076onceoverAutomatically generates tests for your Puppet code
405,7929,814konachaKonacha is a Rails engine that allows you to test your JavaScript with the mocha test f...
416,9577,851chutneyA linter for your Cucumber features. Making sure you have nice, expressible Gherkin is ...
427,39312,891cuke_linterThis gem provides linters for detecting common 'smells' in `.feature` files. In additio...
437,5559,733workato-connector-sdkReproduce key concepts of Workato SDK, DSL, behavior and constraints.
447,73712,289cuke_slicerSlices a Cucumber test suite into the smallest possible executable pieces (i.e. scenari...
457,9527,196baconBacon is a small RSpec clone weighing less than 350 LoC but nevertheless providing all ...
469,13035,731rspec-dry-structRSpec `have_attribute` matcher for dry-struct gem
4710,09820,636active_mockerCreates stub classes from any ActiveRecord model. By using stubs in your tests you don'...
4810,15613,082faker_makerFakerMaker is a simple factory builder so you can throw away your fixtures and generate...
4911,5139,970matchiMatchi is a framework-agnostic Ruby library that provides a comprehensive set of expect...
5012,09510,549cqlCQL is a domain specific language used for querying a Cucumber (or other Gherkin based)...
5112,1246,092mutant-minitestMinitest integration for mutant
5213,7199,288cutestRun tests in separate processes to avoid shared state.
5316,2288,597spectusExpectation library with RFC 2119's requirement levels 🚥
5416,39987,723api_tasterA quick and easy way to visually test out your application's API.
5516,47613,428cucumber_analyticsStatic analysis of Cucumber tests made easy.
5616,89535,731howitzerHowitzer uses the best practices and design patterns allowing to generate a test projec...
5717,5639,570fixFix is a modern Ruby testing framework built around a key architectural principle: the ...
5820,84012,151cuke_catalogerScans existing Cucumber tests and updates them to include an id tag that is unique for ...
5923,18112,018ruby_raiderThis gem has everything you need to start working with test automation
6026,19742,533gitarrogitarro run tests on GitHub PRs using almost any script,language or binary, it integrat...
6126,75111,892ruby_llm-testProvides a RubyLLM::Provider that allows you to stub responses for testing purposes. Yo...
6230,41735,731r_specA minimalist RSpec clone with all the essentials.
6331,42319,775cuketaggerbatch tagging of cucumber features and scenarios
6435,47542,533zapataWho has time to write tests? This is a revolutional tool to make them write themselves.
6539,32611,892brutalA code-first approach to automate the writing of unit tests.
6644,25815,138mature_factoryconfigurable modules provide a tiny DSL for managing factory
6759,04328,078emoji-rspecCustom formatters for RSpec tests.
6871,98287,723fake_personA Ruby library for creating fake personalities
6975,91722,657capybara-wslAllows Capybara to open pages/screenshots in Windows browsers via Launchy.
7094,55687,723like_im_fiveLike Im Five generate a file with factories you need to test a specific object. It use ...
71114,08235,731cuke_commanderProvides an easy way to build a cucumber commandline.
72124,13319,007cucoA simple and flexible file watcher
73137,28542,533importmap_mocha-railsAdd JavaScript testing tools in importmap-rails environment.
74148,46255,182capybara-react-datetimeHelper for changing date input of react-datetime library
75150,80787,723rspec-log_matcherWriting logs is an easy way to store any kind of information for further analysis later...
76178,87787,723haml-lint-bootstrapA simple HAML-Lint plugin used for linting HAML files utilizing Bootstrap. Supported Bo...
77187,04087,723faker-gpkFaker extension for Garbage Pail Kids
78196,21755,182shmactorGet Simplecov coverage on your ractor code (for now)