Create React App Testing: Jest Framework Implementation for Component Validation
The facebook/create-react-app repository demonstrates a comprehensive testing approach focused on ensuring reliability and functionality of Create React App components. Using Jest as the primary testing framework, the codebase includes 65 tests covering both unit and integration testing scenarios, with particular emphasis on component rendering, configuration validation, and TypeScript integration. Qodo Tests Hub provides developers with detailed insights into Create React App's testing patterns, making it easier to understand how the project handles various testing scenarios. Through the platform, developers can explore real-world examples of async/await testing, computed properties validation, and Bootstrap-Sass build process verification, helping them implement similar testing strategies in their own React applications.
| Path | Test Type | Language | Description |
|---|---|---|---|
| packages/react-scripts/fixtures/kitchensink/template/integration/config.test.js |
integration
|
javascript | This Jest integration test verifies baseUrl configuration handling in jsconfig.json and tsconfig.json files for Create React App projects. |
| packages/react-scripts/fixtures/kitchensink/template/integration/syntax.test.js |
integration
|
javascript | This Jest integration test verifies modern JavaScript syntax feature support in Create React App through DOM manipulation and element verification. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/config/BaseUrl.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering and initialization of BASE_URL configuration in Create React App components. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/env/ExpandEnvVariables.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering of components with expanded environment variables in Create React App. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/env/PublicUrl.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering and environment variable handling of the PublicUrl component in Create React App. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/env/ShellEnvVariables.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering and environment variable handling of the ShellEnvVariables React component. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/syntax/ArraySpread.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering and functionality of array spread operations in a React component. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/syntax/ClassProperties.test.js |
unit
|
javascript | This Jest unit test verifies proper rendering and initialization of React components using class properties syntax. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/syntax/CustomInterpolation.test.js |
unit
|
javascript | This Jest unit test verifies the proper rendering and async behavior of custom interpolation components in React. |
| packages/react-scripts/fixtures/kitchensink/template/src/features/syntax/DefaultParameters.test.js |
unit
|
javascript | This Jest unit test verifies proper rendering of React components using default parameters in Create React App. |