Top TypeScript Testing Libraries

Storybook is an open-source tool for building UI components and pages in isolation, making it easier to develop, test, and document React, Vue, Angular, and other web applications.

Code Example

import { Button } from './Button';

export default {
  component: Button,
  title: 'Components/Button',
};

export const Primary = () => <Button primary>Click me</Button>;

Pros

• Storybook offers a comprehensive UI development environment with support for multiple frameworks, unlike more specialized tools like Ladle or framework-specific solutions.
• It provides extensive documentation, addons, and a large community, making it more feature-rich compared to simpler alternatives like Next-js-Boilerplate or SaaS-Boilerplate.
• Storybook integrates well with various testing tools, offering more flexibility than standalone testing solutions like TestCafe or ts-jest.

Cons

• Storybook can have a steeper learning curve and more complex setup compared to lightweight alternatives like Ladle or framework-specific boilerplates.
• It may introduce additional build time and complexity to projects, especially when compared to simpler solutions or those focused on backend development like AdonisJS.
• Storybook is primarily focused on UI component development, lacking features for full-stack or backend development found in projects like PostHog or Hardhat.

Bun is a fast all-in-one JavaScript runtime, bundler, transpiler, and package manager.

Code Example

import { serve } from "bun";

serve({
  fetch(req) { return new Response("Hello World!"); }
});

Pros

• Significantly faster performance compared to Node.js and other JavaScript runtimes.
• All-in-one solution that combines multiple tools (runtime, bundler, transpiler, package manager) into a single package.
• Native TypeScript support without requiring additional configuration or compilation steps.

Cons

• Relatively new project with potential stability issues compared to more established tools like Node.js.
• Limited ecosystem and third-party package compatibility compared to Node.js and npm.
• Lack of extensive documentation and community resources compared to more mature projects in the list.

PostHog is an open-source product analytics platform that helps teams understand user behavior and improve their products.

Pros

• Offers a comprehensive suite of product analytics tools, including feature flags and session recording, which is more extensive than most other projects listed.
• Provides a self-hosted option, giving users more control over their data compared to many SaaS-only alternatives.
• Has a strong focus on privacy and data protection, which is particularly relevant in today's regulatory environment.

Cons

• May have a steeper learning curve compared to some simpler analytics tools in the list.
• Requires more resources to set up and maintain, especially when self-hosted, compared to lightweight alternatives.
• Might be overkill for small projects or teams that only need basic analytics functionality.

AdonisJS is a full-featured MVC framework for Node.js, focusing on developer productivity and elegant syntax.

Code Example

import Route from '@ioc:Adonis/Core/Route'

Route.get('/', async () => {
  return 'Hello World'
})

Pros

• Provides a complete ecosystem with built-in authentication, ORM, and testing tools, unlike more focused projects like ts-jest or testcafe.
• Offers a more opinionated and structured approach compared to flexible boilerplates like Next-js-Boilerplate or SaaS-Boilerplate.
• Has excellent TypeScript support out of the box, which is not always the case with other Node.js frameworks.

Cons

• Less flexible than micro-frameworks or custom boilerplates, potentially limiting customization options.
• Steeper learning curve compared to simpler frameworks or libraries like Express.js.
• Smaller community and ecosystem compared to more popular frameworks like Next.js or NestJS.

oldboyxx/jira_clone is a full-stack Jira clone built with React, Node, and PostgreSQL, demonstrating modern web development practices.

Pros

• Provides a comprehensive, real-world example of a complex web application, unlike more focused libraries like ts-jest or testcafe.
• Offers a complete, ready-to-use project structure, which is more practical than boilerplate projects like ixartz/Next-js-Boilerplate.
• Demonstrates integration of multiple technologies in a single project, unlike single-purpose tools like artillery or hardhat.

Cons

• Less flexible than modular frameworks like adonisjs/core or Next.js-based projects, as it's a specific implementation.
• Not as widely adopted or maintained as popular projects like storybookjs/storybook or PostHog/posthog.
• Lacks the extensive documentation and community support found in more established projects like oven-sh/bun or Blazity/next-enterprise.