validate algorithmic edge cases

Algorithms must be thoroughly tested at boundary conditions and edge cases to prevent subtle bugs. Pay special attention to off-by-1 errors in mathematical calculations, empty collections, and boundary values that might cause unexpected behavior.

Common edge cases to validate:

• Mathematical boundaries (e.g., Math.log10(10) edge case)
• Empty or single-element collections
• Maximum/minimum values in ranges
• Conditional logic branches with complex state

Example from the codebase:

// Problematic - fails for totalTestCount === 10
const indexLength = Math.ceil(Math.log10(this.totalTestCount));

// Correct - handles the edge case properly  
const indexLength = Math.ceil(Math.log10(this.totalTestCount + 1));

When implementing algorithms, create test cases that specifically target these boundary conditions. Consider reusing existing, well-tested algorithmic logic rather than reimplementing similar functionality, as proven algorithms are less likely to contain edge case bugs.