#!/usr/bin/env php

=== Testing XYZ → TileID conversions ===

✓ z=4, x=2, y=15 => TileID 99 (expected 99)
✓ z=7, x=12, y=37 => TileID 10377 (expected 10377)
✓ z=0, x=0, y=0 => TileID 0 (expected 0)
✗ z=1, x=0, y=0 => TileID 2 (expected 1)
✗ z=1, x=1, y=0 => TileID 3 (expected 2)
✗ z=1, x=1, y=1 => TileID 4 (expected 3)
✗ z=1, x=0, y=1 => TileID 1 (expected 4)

=== Checking what TileIDs are in the directory ===

Columnar format: 102 entries
First 10 TileIDs:
  TileID 99 (zoom ~4)
  TileID 1467064 (zoom ~11)
  TileID 3359991 (zoom ~11)
  TileID 3376329 (zoom ~11)
  TileID 3376443 (zoom ~11)
  TileID 3390683 (zoom ~11)
  TileID 174506445 (zoom ~14)
  TileID 21111190724 (zoom ~17)
  TileID 21111200888 (zoom ~17)
  TileID 21111200948 (zoom ~17)

Searching for known TileIDs:
  ✗ TileID 0: NOT FOUND
  ✗ TileID 1: NOT FOUND
  ✗ TileID 2: NOT FOUND
  ✗ TileID 3: NOT FOUND
  ✗ TileID 4: NOT FOUND
  ✓ TileID 99: offset=77, length=64
  ✗ TileID 10377: NOT FOUND