image: ext4-htree.img
features: has_journal,ext_attr,dir_index,filetype,extent,64bit,flex_bg,sparse_super,large_file,huge_file,uninit_bg,metadata_csum
volume_label: htree-vol
contents:
  /small.txt — "small file content\n" (19 bytes)
  /bigdir/   — 256 files (file_001.txt .. file_256.txt), forces htree indexing
test_targets:
  - lookup any /bigdir/file_NNN.txt via htree path
  - readdir of /bigdir returns 258 entries (256 + . + ..)
