Uses toMatchSnapshot

Renders with Testing Library

Complete data test

Missing bio test

Jest test blocks

babel-preset-react-app usage

@babel/core integration

Preset configuration

JSX transformation

Error handling

Result extraction

Port config implementation

HTTPS detection logic

Browser config handling

Proxy validation

Import react-dev-utils

Call formatWebpackMessages

Handle formatted output

Display formatted messages

Return build status

Import createProxyMiddleware

Export configuration function

Register API proxy

Configure path rewriting

Enable changeOrigin

Register WebSocket proxy

Enable WebSocket support

Configure debug logging

CSS Module file creation

CSS Module import

Scoped class application

Multiple scoped classes

Dynamic class application

Style definitions

TypeScript Compiler Usage

Configuration Detection

Dependency Verification

Error Collection

File Discovery

Result Structure

CSS File Import

Separate CSS File

CSS Class Application

CSS Selectors

Working Styles

Mode configuration

Development devtool

Production devtool

DevServer configuration

Hot module replacement

DevServer port

DevServer open

Production optimization

Output filename hashing

Environment validation

connect() usage

serveStatic middleware

Fallback middleware

Middleware ordering

Server listening