Write testthat Tests

Create comprehensive tests for R package functions using testthat edition 3.

When to Use

• Adding tests for new package functions
• Increasing test coverage for existing code
• Writing regression tests for bug fixes
• Setting up test infrastructure for a new package

Inputs

• Required: R functions to test
• Required: Expected behavior and edge cases
• Optional: Test fixtures or sample data
• Optional: Target coverage percentage (default: 80%)

Procedure