A Vitest testing setup with unit tests for utility functions. Uses ESM-first describe/it/expect syntax and displays formatted test results.

What this demonstrates

• Vite-native test framework with fast execution
• Tests written with ES module imports
• Math utilities and string utilities as separate test suites
• Aggregated test results with pass/fail counts

Explore

1. Run the test suites and view the formatted results
2. Edit the source files to introduce a bug and see failures
3. Add new test cases to existing suites