- Install Jest for unit testing with React Testing Library - Install Playwright for end-to-end testing - Configure Jest with proper TypeScript support and module mapping - Create test setup files and utilities for both unit and e2e tests Components: * Jest configuration with coverage thresholds * Playwright configuration with browser automation * Unit tests for LoginForm, AuthContext, and useSocketIO hook * E2E tests for authentication, dashboard, and agents workflows * GitHub Actions workflow for automated testing * Mock data and API utilities for consistent testing * Test documentation with best practices Testing features: - Unit tests with 70% coverage threshold - E2E tests with API mocking and user journey testing - CI/CD integration for automated test runs - Cross-browser testing support with Playwright - Authentication system testing end-to-end 🚀 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
strip-final-newline 
Strip the final newline character from a string/buffer
Can be useful when parsing the output of, for example, ChildProcess#execFile, as binaries usually output a newline at the end. Normally, you would use stdout.trim(), but that would also remove newlines at the start and whitespace.
Install
$ npm install strip-final-newline
Usage
const stripFinalNewline = require('strip-final-newline');
stripFinalNewline('foo\nbar\n\n');
//=> 'foo\nbar\n'
stripFinalNewline(Buffer.from('foo\nbar\n\n')).toString();
//=> 'foo\nbar\n'
License
MIT © Sindre Sorhus