Write Missing Tests

Fill these in and the prompt below updates as you type. Anything you leave blank stays as a placeholder.

I need tests for this existing code:

{{code}}

Generate a test suite using {{test_framework}} that covers:
- Every public function/method
- Normal inputs with expected outputs
- Edge cases (empty inputs, max values, null, special characters)
- Error conditions (what should throw/reject/return errors)
- Integration between functions if applicable

For each test, explain what it's verifying and why that case matters. Organize tests by function with describe/context blocks. Aim for 90%+ code coverage.