Using Storybook for Testing

1. Introduction

Storybook is an open-source tool for developing UI components in isolation for React, Vue, and Angular. It provides a sandbox for testing components, allowing developers to visualize and interact with them independently from the application.

2. What is Storybook?

Storybook is a UI development environment that allows developers to create and test components in isolation. It enables the creation of "stories," which are visual representations of a component's different states and variations.

3. Setting Up Storybook

1. Navigate to your project directory.
2. Install Storybook using the command:

   npx sb init

3. Run Storybook:

   npm run storybook

4. Writing Stories

To write a story for a component, create a file named Component.stories.js. Here’s a basic example for a button component:

import React from 'react';
import MyButton from './MyButton';

export default {
  title: 'Example/MyButton',
  component: MyButton,
};

const Template = (args) => ;

export const Primary = Template.bind({});
Primary.args = {
  primary: true,
  label: 'Primary Button',
};

export const Secondary = Template.bind({});
Secondary.args = {
  label: 'Secondary Button',
};

5. Testing Components

Storybook can be used to visually test components by leveraging addons like Storyshots for snapshot testing and Accessibility for checking accessibility compliance.

6. Best Practices

• Write stories for all component states.
• Use addons to enhance your testing capabilities.
• Keep your stories organized and categorized.
• Regularly update stories as components evolve.

7. FAQ