Package category
Testing
Test runners, assertion libraries, mocking and end-to-end testing.
1,409 packages15 comparisons
Packages compared
1,409 packages
| Package | Weekly downloads | 12-month change | 52 weeks | Gzip | Last release | Module | Types | Categories |
|---|---|---|---|---|---|---|---|---|
| @web/dev-server-legacy Plugin for legacy browsers in @web/dev-server | 7.9k | - | - | - | 2 months ago 3.0.0 | ESM + CommonJS | Bundled | Testing, TypeScript tooling |
| grunt-mocha-cli Run Mocha server-side tests in Grunt. | 7.9k | +16% | - | - 7.0.0 | CommonJS | None | Testing | |
| @stdlib/ndarray-base-assert-is-data-type-object Test if an input value is an ndarray data type object. | 7.8k | - | - | - | 7 months ago 0.0.1 | CommonJS | Bundled | Testing, Utility libraries |
| @stdlib/ndarray-base-assert-is-data-type Test if an input value is a supported ndarray data type. | 7.8k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | TypeScript tooling, Testing |
| aws-lambda-test-utils Test your AWS Lambda Functions for reals! | 7.8k | -59% | - | 8 years ago 1.3.0 | CommonJS | None | Cloud SDKs, Testing | |
| cypress-shadow-dom Extend Cypress commands with shadow DOM support | 7.7k | -25% | - | 6 years ago 1.4.1 | CommonJS | Bundled | Testing | |
| @soleo/google-maps-vitest-mocks [](https://www.npmjs.com/package/@googlemaps/jest-mocks)  ![Release](https://github.com/googlemaps/js-jest-mocks/workf | 7.7k | - | - | - | 2 years ago 2.21.5 | CommonJS | Bundled | Testing |
| @stdlib/assert-is-typed-array-like Test if a value is typed-array-like. | 7.6k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | Utility libraries, Testing |
| poku 🐷 Poku makes testing easy for Node.js, Bun, Deno, and you at the same time. | 7.6k | +47% | - | 3 months ago 4.5.0 | ESM + CommonJS | Bundled | Testing, Node.js utilities | |
| @limrun/base-driver Base driver class for Appium drivers | 7.5k | - | - | - | 9 months ago 10.1.2-lim.1 | - | Bundled | Scraping and browser automation, Testing |
| mock-browser A mock browser with window, document, location, navigation, local and session storage to use for client side code tests in a node environment. | 7.5k | +117% | - | 9 years ago 0.92.14 | - | None | Testing | |
| vue3-snapshot-serializer Vitest snapshot serializer for Vue 3 components | 7.4k | +305% | - | 1 month ago 2.13.4 | ESM only | None | Testing, Vue | |
| @stdlib/assert-is-method-in Test if an object has a specified method name, either own or inherited. | 7.3k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | Utility libraries, Testing |
| @factorialco/specbandit Distributed test runner using Redis as a work queue. Push file paths to a Redis list, then multiple CI runners atomically steal batches and execute them via a configurable command. | 7.3k | - | - | - | 9 days ago 1.4.1 | ESM only | Bundled | Testing |
| easytimer.js Timer/Chronometer/Countdown compatible with AMD and NodeJS | 7.2k | -3% | - | 3 years ago 4.6.0 | CommonJS | Bundled | Node.js utilities, Testing | |
| web-component-tester web-component-tester makes testing your web components a breeze! | 7.2k | +85% | - | 7 years ago 6.9.2 | CommonJS | None | Testing | |
| @stdlib/assert-contains Test if an array-like value contains a search value. | 7.2k | - | - | - | 7 months ago 0.3.1 | CommonJS | Bundled | Utility libraries, Testing |
| mocha-jsdom Simple integration of jsdom into mocha tests | 7.2k | -26% | - | - 2.0.0 | CommonJS | None | Scraping and browser automation, Testing | |
| sandboxed-module A sandboxed Node.js module loader that lets you inject dependencies into your modules. | 7.1k | -68% | - | 6 years ago 2.0.4 | CommonJS | None | Dev servers and API mocking, Testing | |
| blue-tape Tape test runner with promise support | 7.1k | -88% | - | 10 years ago 1.0.0 | CommonJS | None | Promises and async control flow, Testing | |
| @johanblumenberg/ts-mockito Mocking library for TypeScript | 7k | - | - | - | 11 months ago 1.0.52 | CommonJS | Bundled | TypeScript tooling, Testing |
| vitest-dynamodb-lite fast dynamodb mock on local for vitest | 7k | -51% | - | 10 months ago 5.1.0 | CommonJS | None | Testing | |
| @lushly-dev/afd-testing Testing utilities for Agent-First Development | 6.9k | - | - | - | 6 months ago 1.0.0 | ESM only | Bundled | Testing |
| spawk child_process.spawn mocking library | 6.9k | +3% | - | 2 years ago 1.8.2 | CommonJS | Bundled | Node.js utilities, Testing | |
| html-dnd HTML Drag and Drop Simulator for E2E testing | 6.9k | -23% | - | 7 years ago 1.2.1 | CommonJS | Bundled | Testing, DOM and browser utilities | |
| sequelize-test-helpers A collection of utilities to help with unit-testing sequelize models | 6.9k | -25% | - | 4 years ago 1.4.3 | CommonJS | None | Dev servers and API mocking, Testing | |
| @serenity-js/cucumber Serenity/JS test runner adapter for seamless integration with any version of Cucumber.js, facilitating BDD-style test automation and leveraging Serenity/JS reporting capabilities | 6.8k | - | - | - | 9 days ago 3.48.0 | ESM + CommonJS | Bundled | Testing |
| @stdlib/ndarray-base-assert-is-column-major-string Test whether an input value is the string representing column-major order. | 6.8k | - | - | - | 7 months ago 0.1.1 | CommonJS | Bundled | Testing, Utility libraries |
| @stdlib/assert-has-property Test if an object has a specified property, either own or inherited. | 6.7k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | Utility libraries, Testing |
| @firanorg/mollitia-molestias-accusamus [![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url] | 6.7k | - | - | - | 1 year ago 10.13.142 | CommonJS | None | CLI tools and terminal utilities, Testing |
| playwright-advanced-har Advanced HAR routing for Playwright | 6.7k | +32% | - | 6 months ago 1.4.1 | CommonJS | Bundled | Scraping and browser automation, Testing | |
| mocha-typescript TypeScript decorators based wrapper over mocha's interface | 6.7k | -16% | - | - 1.1.17 | CommonJS | Bundled | TypeScript tooling, Testing | |
| @stdlib/assert-is-struct-constructor-like Test if a value is struct constructor-like. | 6.6k | - | - | - | 7 months ago 0.1.1 | CommonJS | Bundled | Testing |
| @qase/mcp-server Official MCP server for Qase Test Management Platform | 6.6k | - | - | - | 1 day ago 2.7.1 | ESM only | Bundled | Testing |
| @stdlib/assert-is-dataview Test if a value is a DataView. | 6.6k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | Utility libraries, Testing |
| ctrf-cli Various CTRF utilities available from the command line | 6.5k | +329% | - | 1 month ago 0.3.1 | ESM only | Bundled | CLI tools and terminal utilities, Testing | |
| cypress-msw-interceptor A networking layer for Cypress using MSW | 6.5k | -17% | - | 3 years ago 2.2.0 | CommonJS | None | Testing, Dev servers and API mocking | |
| @factory-js/prisma-factory 🏭 The FactoryJS plugin for Prisma | 6.5k | - | - | - | 7 months ago 0.2.3 | ESM + CommonJS | Bundled | Testing, ORMs and query builders |
| @logtape/testing Testing utilities for collecting and asserting LogTape records | 6.4k | - | - | - | 3 days ago 2.3.7 | ESM + CommonJS | Bundled | Logging, Testing |
| playwright-network-cache Cache network requests in Playwright tests | 6.4k | +241% | - | 4 months ago 0.3.0 | CommonJS | Bundled | Caching, Scraping and browser automation | |
| @zenrows/browser-sdk ZenRows Scraping Browser JavaScript SDK | 6.3k | - | - | - | 2 years ago 1.1.0 | ESM + CommonJS | Bundled | Scraping and browser automation, Testing |
| mockserver Easily mock your webservices while testing frontends. | 6.3k | +10% | - | 7 years ago 3.1.1 | CommonJS | None | Testing | |
| mocha-circleci-reporter A mocha reporter that supports Circle CI, via a combined jUnit and Spec reporter output. | 6.3k | -57% | - | 8 years ago 0.0.3 | CommonJS | None | Testing | |
| @serenity-js/playwright-test Serenity/JS test runner adapter for Playwright Test, combining Playwright's developer experience with the advanced reporting and automation capabilities of Serenity/JS | 6.2k | - | - | - | 9 days ago 3.48.0 | ESM + CommonJS | Bundled | Testing |
| chai-fs Chai assertions for Node.js filesystem | 6.2k | -33% | - | 8 years ago 2.0.0 | CommonJS | None | Files and file systems, Testing | |
| mock-amqplib stub rabbit mq in integration tests | 6.2k | +2% | - | 2 years ago 1.8.2 | CommonJS | None | Testing, Queues and background jobs | |
| japa Lean test runner for Node.js | 6.2k | +18% | - | 4 years ago 4.0.0 | CommonJS | Bundled | Testing | |
| vitest-environment-prisma-postgres Vitest environment for Prisma & PostgreSQL designed for fast integration tests: seed your database once with production-like data, then run each test in a transaction that is rolled back after execution. Tests remain isolated without expensive reseeding. | 6.1k | - | - | 3 months ago 2.0.0 | ESM + CommonJS | Bundled | Testing, ORMs and query builders | |
| formatjs JavaScript date format tester. | 6.1k | +52% | - | 14 years ago 0.1.1 | CommonJS | None | Testing | |
| @stdlib/assert-is-ndarray-like Test if a value is ndarray-like. | 6.1k | - | - | - | 7 months ago 0.2.3 | CommonJS | Bundled | Utility libraries, Testing |
12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.
- @web/dev-server-legacyPlugin for legacy browsers in @web/dev-server
- grunt-mocha-cliRun Mocha server-side tests in Grunt.
- @stdlib/ndarray-base-assert-is-data-type-objectTest if an input value is an ndarray data type object.
- @stdlib/ndarray-base-assert-is-data-typeTest if an input value is a supported ndarray data type.
- aws-lambda-test-utilsTest your AWS Lambda Functions for reals!
- cypress-shadow-domExtend Cypress commands with shadow DOM support
- @soleo/google-maps-vitest-mocks[](https://www.npmjs.com/package/@googlemaps/jest-mocks)  ![Release](https://github.com/googlemaps/js-jest-mocks/workf
- @stdlib/assert-is-typed-array-likeTest if a value is typed-array-like.
- poku🐷 Poku makes testing easy for Node.js, Bun, Deno, and you at the same time.
- @limrun/base-driverBase driver class for Appium drivers
- mock-browserA mock browser with window, document, location, navigation, local and session storage to use for client side code tests in a node environment.
- vue3-snapshot-serializerVitest snapshot serializer for Vue 3 components
- @stdlib/assert-is-method-inTest if an object has a specified method name, either own or inherited.
- @factorialco/specbanditDistributed test runner using Redis as a work queue. Push file paths to a Redis list, then multiple CI runners atomically steal batches and execute them via a configurable command.
- easytimer.jsTimer/Chronometer/Countdown compatible with AMD and NodeJS
- web-component-testerweb-component-tester makes testing your web components a breeze!
- @stdlib/assert-containsTest if an array-like value contains a search value.
- mocha-jsdomSimple integration of jsdom into mocha tests
- sandboxed-moduleA sandboxed Node.js module loader that lets you inject dependencies into your modules.
- blue-tapeTape test runner with promise support
- @johanblumenberg/ts-mockitoMocking library for TypeScript
- vitest-dynamodb-litefast dynamodb mock on local for vitest
- @lushly-dev/afd-testingTesting utilities for Agent-First Development
- spawkchild_process.spawn mocking library
- html-dndHTML Drag and Drop Simulator for E2E testing
- sequelize-test-helpersA collection of utilities to help with unit-testing sequelize models
- @serenity-js/cucumberSerenity/JS test runner adapter for seamless integration with any version of Cucumber.js, facilitating BDD-style test automation and leveraging Serenity/JS reporting capabilities
- @stdlib/ndarray-base-assert-is-column-major-stringTest whether an input value is the string representing column-major order.
- @stdlib/assert-has-propertyTest if an object has a specified property, either own or inherited.
- @firanorg/mollitia-molestias-accusamus[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]
- playwright-advanced-harAdvanced HAR routing for Playwright
- mocha-typescriptTypeScript decorators based wrapper over mocha's interface
- @stdlib/assert-is-struct-constructor-likeTest if a value is struct constructor-like.
- @qase/mcp-serverOfficial MCP server for Qase Test Management Platform
- @stdlib/assert-is-dataviewTest if a value is a DataView.
- ctrf-cliVarious CTRF utilities available from the command line
- cypress-msw-interceptorA networking layer for Cypress using MSW
- @factory-js/prisma-factory🏭 The FactoryJS plugin for Prisma
- @logtape/testingTesting utilities for collecting and asserting LogTape records
- playwright-network-cacheCache network requests in Playwright tests
- @zenrows/browser-sdkZenRows Scraping Browser JavaScript SDK
- mockserverEasily mock your webservices while testing frontends.
- mocha-circleci-reporterA mocha reporter that supports Circle CI, via a combined jUnit and Spec reporter output.
- @serenity-js/playwright-testSerenity/JS test runner adapter for Playwright Test, combining Playwright's developer experience with the advanced reporting and automation capabilities of Serenity/JS
- chai-fsChai assertions for Node.js filesystem
- mock-amqplibstub rabbit mq in integration tests
- japaLean test runner for Node.js
- vitest-environment-prisma-postgresVitest environment for Prisma & PostgreSQL designed for fast integration tests: seed your database once with production-like data, then run each test in a transaction that is rolled back after execution. Tests remain isolated without expensive reseeding.
- formatjsJavaScript date format tester.
- @stdlib/assert-is-ndarray-likeTest if a value is ndarray-like.
- selenium-webdriver vs wd
- @appium/types vs selenium-webdriver
- msw vs json-server
- @copilotkit/aimock vs mock-socket
- @appium/types vs wd
- mockttp vs ts-mockito
- mock-socket vs ts-mockito
- rewire vs ng-mocks
- msw vs miragejs
- codeceptjs vs playwright-bdd
- codeceptjs vs nightwatch
- mocha vs jasmine-core
- mock-socket vs ng-mocks
- fast-check vs rewire
- ts-jest vs @golevelup/ts-jest