/**
 * Test Results: Negative Offset Analysis for read_file
 * 
 * FINDINGS:
 * ❌ Negative offsets DO NOT work correctly in the current implementation
 * ❌ They return empty content due to invalid slice() range calculations
 * ⚠️  The implementation has a bug when handling negative offsets
 * 
 * CURRENT BEHAVIOR:
 * - offset: -2, length: 5 → slice(-2, 3) → returns empty []
 * - offset: -100, length: undefined → slice(-100, undefined) → works by accident
 * 
 * RECOMMENDATION: 
 * Either fix the implementation to properly support negative offsets,
 * or add validation to reject them with a clear error message.
 */

console.log("🔍 NEGATIVE OFFSET BEHAVIOR ANALYSIS");
console.log("====================================");
console.log("");
console.log("❌ CONCLUSION: Negative offsets are BROKEN in current implementation");
console.log("");
console.log("🐛 BUG DETAILS:");
console.log("   Current code: Math.min(offset, totalLines) creates invalid ranges");
console.log("   Example: offset=-2, totalLines=6 → slice(-2, 3) → empty result");
console.log("");
console.log("✅ ACCIDENTAL SUCCESS:");
console.log("   My original attempt worked because length was undefined");
console.log("   slice(-100, undefined) → slice(-100) → works correctly");
console.log("");
console.log("🔧 NEEDS FIX:");
console.log("   Either implement proper negative offset support or reject them");

export default async function runTests() {
  return false; // Test documents that negative offsets are broken
}