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Validating Sass Component Integration in Create-React-App

This test suite validates the integration of Sass styling in Create React App by ensuring proper component rendering with Sass dependencies. It verifies the basic functionality of Sass inclusion within the React component ecosystem.

Test Coverage Overview

The test coverage focuses on validating the successful rendering of components with Sass styling integration.

Basic component rendering verification
Sass dependency inclusion testing
DOM manipulation validation
React component lifecycle integration

Implementation Analysis

The testing approach employs Jest’s describe/it pattern for component rendering validation. The implementation uses ReactDOM.render() to mount components and verify Sass inclusion functionality.

Component mounting verification
DOM element creation and cleanup
React component instantiation testing

Technical Details

Jest test framework
React Testing Library
ReactDOM rendering utilities
DOM manipulation methods
Sass styling integration

Best Practices Demonstrated

The test suite demonstrates clean and efficient testing practices for React components with Sass integration.

Isolated component testing
Proper DOM cleanup
Clear test case organization
Focused test scope

facebook/create-react-app

packages/react-scripts/fixtures/kitchensink/template/src/features/webpack/SassInclusion.test.js

            
/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import React from 'react';
import ReactDOM from 'react-dom';
import SassInclusion from './SassInclusion';

describe('sass inclusion', () => {
  it('renders without crashing', () => {
    const div = document.createElement('div');
    ReactDOM.render(<SassInclusion />, div);
  });
});