content: [cases.test_move_file]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
      lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
      lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
      lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hello") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 5+8+6);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_nop] # yes this is legal
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "hi") => 0;
      lfs_rename(&lfs, "hi", "hi") => 0;
      lfs_mkdir(&lfs, "hi/hi") => 0;
      lfs_rename(&lfs, "hi/hi", "hi/hi") => 0;
      lfs_mkdir(&lfs, "hi/hi/hi") => 0;
      lfs_rename(&lfs, "hi/hi/hi", "hi/hi/hi") => 0;
      struct lfs_info info;
      lfs_stat(&lfs, "hi/hi/hi", &info) => 0;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_file_corrupt_source]
  in = "lfs.c"
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
      lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
      lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
      lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hello") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 5+8+6);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  # move file corrupt source and dest
  [cases.test_move_file_corrupt_source_dest]
  in = "lfs.c"
  if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
      lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
      lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
      lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // corrupt the destination
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hello") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 5+8+6);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_file_after_corrupt]
  in = "lfs.c"
  if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
      lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
      lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
      lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // corrupt the destination
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // continue move
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hello") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 5+8+6);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_reentrant_file]
  reentrant = true
  defines.POWERLOSS_BEHAVIOR = [
      'LFS_EMUBD_POWERLOSS_NOOP',
      'LFS_EMUBD_POWERLOSS_OOO',
  ]
  code = '''
      lfs_t lfs;
      int err = lfs_mount(&lfs, cfg);
      if (err) {
          lfs_format(&lfs, cfg) => 0;
          lfs_mount(&lfs, cfg) => 0;
      }
      err = lfs_mkdir(&lfs, "a");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "b");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "c");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "d");
      assert(!err || err == LFS_ERR_EXIST);
      lfs_unmount(&lfs) => 0;
  
      while (true) {
          lfs_mount(&lfs, cfg) => 0;
          // there should never exist _2_ hello files
          int count = 0;
          struct lfs_info info;
          if (lfs_stat(&lfs, "a/hello", &info) == 0) {
              assert(strcmp(info.name, "hello") == 0);
              assert(info.type == LFS_TYPE_REG);
              assert(info.size == 5+8+6 || info.size == 0);
              count += 1;
          }
          if (lfs_stat(&lfs, "b/hello", &info) == 0) {
              assert(strcmp(info.name, "hello") == 0);
              assert(info.type == LFS_TYPE_REG);
              assert(info.size == 5+8+6);
              count += 1;
          }
          if (lfs_stat(&lfs, "c/hello", &info) == 0) {
              assert(strcmp(info.name, "hello") == 0);
              assert(info.type == LFS_TYPE_REG);
              assert(info.size == 5+8+6);
              count += 1;
          }
          if (lfs_stat(&lfs, "d/hello", &info) == 0) {
              assert(strcmp(info.name, "hello") == 0);
              assert(info.type == LFS_TYPE_REG);
              assert(info.size == 5+8+6);
              count += 1;
          }
          assert(count <= 1);
          lfs_unmount(&lfs) => 0;
  
          lfs_mount(&lfs, cfg) => 0;
          if (lfs_stat(&lfs, "a/hello", &info) == 0 && info.size > 0) {
              lfs_rename(&lfs, "a/hello", "b/hello") => 0;
          } else if (lfs_stat(&lfs, "b/hello", &info) == 0) {
              lfs_rename(&lfs, "b/hello", "c/hello") => 0;
          } else if (lfs_stat(&lfs, "c/hello", &info) == 0) {
              lfs_rename(&lfs, "c/hello", "d/hello") => 0;
          } else if (lfs_stat(&lfs, "d/hello", &info) == 0) {
              // success
              lfs_unmount(&lfs) => 0;
              break;
          } else {
              // create file
              lfs_file_t file;
              lfs_file_open(&lfs, &file, "a/hello",
                      LFS_O_WRONLY | LFS_O_CREAT) => 0;
              lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
              lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
              lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
              lfs_file_close(&lfs, &file) => 0;
          }
          lfs_unmount(&lfs) => 0;
      }
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "d") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hello") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 5+8+6);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_dir]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_mkdir(&lfs, "a/hi") => 0;
      lfs_mkdir(&lfs, "a/hi/hola") => 0;
      lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
      lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hi", "c/hi") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "c/hi") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "bonjour") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hola") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "ohayo") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_dir_corrupt_source]
  in = "lfs.c"
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_mkdir(&lfs, "a/hi") => 0;
      lfs_mkdir(&lfs, "a/hi/hola") => 0;
      lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
      lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hi", "c/hi") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "c/hi") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "bonjour") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hola") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "ohayo") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_dir_corrupt_source_dest]
  in = "lfs.c"
  if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_mkdir(&lfs, "a/hi") => 0;
      lfs_mkdir(&lfs, "a/hi/hola") => 0;
      lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
      lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hi", "c/hi") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // corrupt the destination
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "a/hi") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "bonjour") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hola") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "ohayo") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "c/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_dir_after_corrupt]
  in = "lfs.c"
  if = 'PROG_SIZE <= 0x3fe' # only works with one crc per commit
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_mkdir(&lfs, "a/hi") => 0;
      lfs_mkdir(&lfs, "a/hi/hola") => 0;
      lfs_mkdir(&lfs, "a/hi/bonjour") => 0;
      lfs_mkdir(&lfs, "a/hi/ohayo") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hi", "c/hi") => 0;
      lfs_unmount(&lfs) => 0;
  
      // corrupt the source
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_block_t block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      uint8_t buffer[BLOCK_SIZE];
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      int off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // corrupt the destination
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      block = dir.m.pair[0];
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
      cfg->read(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      off = BLOCK_SIZE-1;
      while (off >= 0 && buffer[off] == ERASE_VALUE) {
          off -= 1;
      }
      memset(&buffer[off-3], BLOCK_SIZE, 3);
      cfg->erase(cfg, block) => 0;
      cfg->prog(cfg, block, 0, buffer, BLOCK_SIZE) => 0;
      cfg->sync(cfg) => 0;
  
      // continue move
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hi", "c/hi") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "c") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "c/hi") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "bonjour") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hola") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "ohayo") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "d/hi") => LFS_ERR_NOENT;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_reentrant_dir]
  reentrant = true
  defines.POWERLOSS_BEHAVIOR = [
      'LFS_EMUBD_POWERLOSS_NOOP',
      'LFS_EMUBD_POWERLOSS_OOO',
  ]
  code = '''
      lfs_t lfs;
      int err = lfs_mount(&lfs, cfg);
      if (err) {
          lfs_format(&lfs, cfg) => 0;
          lfs_mount(&lfs, cfg) => 0;
      }
      err = lfs_mkdir(&lfs, "a");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "b");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "c");
      assert(!err || err == LFS_ERR_EXIST);
      err = lfs_mkdir(&lfs, "d");
      assert(!err || err == LFS_ERR_EXIST);
      lfs_unmount(&lfs) => 0;
  
      while (true) {
          lfs_mount(&lfs, cfg) => 0;
          // there should never exist _2_ hi directories
          int count = 0;
          struct lfs_info info;
          if (lfs_stat(&lfs, "a/hi", &info) == 0) {
              assert(strcmp(info.name, "hi") == 0);
              assert(info.type == LFS_TYPE_DIR);
              count += 1;
          }
          if (lfs_stat(&lfs, "b/hi", &info) == 0) {
              assert(strcmp(info.name, "hi") == 0);
              assert(info.type == LFS_TYPE_DIR);
              count += 1;
          }
          if (lfs_stat(&lfs, "c/hi", &info) == 0) {
              assert(strcmp(info.name, "hi") == 0);
              assert(info.type == LFS_TYPE_DIR);
              count += 1;
          }
          if (lfs_stat(&lfs, "d/hi", &info) == 0) {
              assert(strcmp(info.name, "hi") == 0);
              assert(info.type == LFS_TYPE_DIR);
              count += 1;
          }
          assert(count <= 1);
          lfs_unmount(&lfs) => 0;
  
          lfs_mount(&lfs, cfg) => 0;
          if (lfs_stat(&lfs, "a/hi", &info) == 0) {
              lfs_rename(&lfs, "a/hi", "b/hi") => 0;
          } else if (lfs_stat(&lfs, "b/hi", &info) == 0) {
              lfs_rename(&lfs, "b/hi", "c/hi") => 0;
          } else if (lfs_stat(&lfs, "c/hi", &info) == 0) {
              lfs_rename(&lfs, "c/hi", "d/hi") => 0;
          } else if (lfs_stat(&lfs, "d/hi", &info) == 0) {
              lfs_unmount(&lfs) => 0;
              break; // success
          } else {
              // create dir and rename for atomicity
              err = lfs_mkdir(&lfs, "temp");
              assert(!err || err == LFS_ERR_EXIST);
              err = lfs_mkdir(&lfs, "temp/hola");
              assert(!err || err == LFS_ERR_EXIST);
              err = lfs_mkdir(&lfs, "temp/bonjour");
              assert(!err || err == LFS_ERR_EXIST);
              err = lfs_mkdir(&lfs, "temp/ohayo");
              assert(!err || err == LFS_ERR_EXIST);
              lfs_rename(&lfs, "temp", "a/hi") => 0;
          }
          lfs_unmount(&lfs) => 0;
      }
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "a") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_dir_open(&lfs, &dir, "d") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hi") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "a/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "b/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "c/hi") => LFS_ERR_NOENT;
      lfs_dir_open(&lfs, &dir, "d/hi") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "bonjour") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "hola") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "ohayo") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  [cases.test_move_state_stealing]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_mkdir(&lfs, "a") => 0;
      lfs_mkdir(&lfs, "b") => 0;
      lfs_mkdir(&lfs, "c") => 0;
      lfs_mkdir(&lfs, "d") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_CREAT | LFS_O_WRONLY) => 0;
      lfs_file_write(&lfs, &file, "hola\n", 5) => 5;
      lfs_file_write(&lfs, &file, "bonjour\n", 8) => 8;
      lfs_file_write(&lfs, &file, "ohayo\n", 6) => 6;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "a/hello", "b/hello") => 0;
      lfs_unmount(&lfs) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "b/hello", "c/hello") => 0;
      lfs_unmount(&lfs) => 0;
      lfs_mount(&lfs, cfg) => 0;
      lfs_rename(&lfs, "c/hello", "d/hello") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      lfs_remove(&lfs, "b") => 0;
      lfs_remove(&lfs, "c") => 0;
      lfs_unmount(&lfs) => 0;
  
      lfs_mount(&lfs, cfg) => 0;
      struct lfs_info info;
      lfs_stat(&lfs, "a", &info) => 0;
      lfs_stat(&lfs, "b", &info) => LFS_ERR_NOENT;
      lfs_stat(&lfs, "c", &info) => LFS_ERR_NOENT;
      lfs_stat(&lfs, "d", &info) => 0;
      lfs_file_open(&lfs, &file, "a/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "b/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "c/hello", LFS_O_RDONLY) => LFS_ERR_NOENT;
      lfs_file_open(&lfs, &file, "d/hello", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 5) => 5;
      memcmp(buffer, "hola\n", 5) => 0;
      lfs_file_read(&lfs, &file, buffer, 8) => 8;
      memcmp(buffer, "bonjour\n", 8) => 0;
      lfs_file_read(&lfs, &file, buffer, 6) => 6;
      memcmp(buffer, "ohayo\n", 6) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  # Other specific corner cases
  
  # create + delete in same commit with neighbors
  [cases.test_move_create_delete_same]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
  
      // littlefs keeps files sorted, so we know the order these will be in
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.1", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/2.in_between",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.2", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/4.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.3", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_t files[3];
      lfs_file_open(&lfs, &files[0], "0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "2.in_between",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "4.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.4", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.5", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.6", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete simultaneously
      lfs_rename(&lfs, "/1.move_me", "/3.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
  
      // check that nothing was corrupted
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.in_between") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "3.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "4.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.4") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.5") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.6") == 0);
      lfs_file_close(&lfs, &file) => 0;
  
      // now move back
      lfs_file_open(&lfs, &files[0], "0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "2.in_between",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "4.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.7", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.8", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.9", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete simultaneously
      lfs_rename(&lfs, "/3.move_me", "/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
  
      // and check that nothing was corrupted again
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.in_between") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "4.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.7") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.8") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.9") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  # create + delete + delete in same commit with neighbors
  [cases.test_move_create_delete_delete_same]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
  
      // littlefs keeps files sorted, so we know the order these will be in
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/3.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "remove me",
              sizeof("remove me")) => sizeof("remove me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.1", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/2.in_between",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.2", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/4.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.3", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_t files[3];
      lfs_file_open(&lfs, &files[0], "0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "2.in_between",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "4.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.4", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.5", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.6", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete simultaneously
      lfs_rename(&lfs, "/1.move_me", "/3.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
  
      // check that nothing was corrupted
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.in_between") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "3.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "4.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.4") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.5") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.6") == 0);
      lfs_file_close(&lfs, &file) => 0;
  
      // now move back
      lfs_file_open(&lfs, &file, "/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "remove me",
              sizeof("remove me")) => sizeof("remove me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &files[0], "0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "2.in_between",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "4.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.7", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.8", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.9", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete simultaneously
      lfs_rename(&lfs, "/3.move_me", "/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
  
      // and check that nothing was corrupted again
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.in_between") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "4.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.7") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/2.in_between", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.8") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/4.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.9") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  # create + delete in different dirs with neighbors
  [cases.test_move_create_delete_different]
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
  
      // littlefs keeps files sorted, so we know the order these will be in
      lfs_mkdir(&lfs, "/dir.1") => 0;
      lfs_mkdir(&lfs, "/dir.2") => 0;
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "/dir.1/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "remove me",
              sizeof("remove me")) => sizeof("remove me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/dir.1/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.1", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.1/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.2", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/dir.2/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.3", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.4", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_t files[4];
      lfs_file_open(&lfs, &files[0], "/dir.1/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "/dir.1/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "/dir.2/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[3], "/dir.2/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
      lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete as it overwrites the destination file
      lfs_rename(&lfs, "/dir.1/1.move_me", "/dir.2/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
      lfs_file_close(&lfs, &files[3]) => 0;
  
      // check that nothing was corrupted
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "dir.1") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "dir.2") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/dir.1") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/dir.2") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/dir.1/0.before", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.5") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.1/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.6") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.7") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.8") == 0);
      lfs_file_close(&lfs, &file) => 0;
  
      // now move back
      lfs_file_open(&lfs, &file, "/dir.1/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "remove me",
              sizeof("remove me")) => sizeof("remove me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &files[0], "/dir.1/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "/dir.1/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "/dir.2/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[3], "/dir.2/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.9", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.a", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.b", 7) => 7;
      lfs_file_write(&lfs, &files[3], "test.c", 7) => 7;
  
      // rename file while everything is open, this triggers both
      // a create and delete simultaneously
      lfs_rename(&lfs, "/dir.2/1.move_me", "/dir.1/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
      lfs_file_close(&lfs, &files[3]) => 0;
  
      // and check that nothing was corrupted again
      lfs_dir_open(&lfs, &dir, "/") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "dir.1") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "dir.2") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/dir.1") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 0);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/dir.2") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/dir.1/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.9") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.1/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.a") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.b") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/dir.2/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.c") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  # move fix in relocation
  [cases.test_move_fix_relocation]
  in = "lfs.c"
  defines.RELOCATIONS = 'range(4)'
  defines.ERASE_CYCLES = 0xffffffff
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
  
      lfs_mkdir(&lfs, "/parent") => 0;
      lfs_mkdir(&lfs, "/parent/child") => 0;
  
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "/parent/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "move me",
              sizeof("move me")) => sizeof("move me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/parent/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.1", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.2", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.3", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.4", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_t files[4];
      lfs_file_open(&lfs, &files[0], "/parent/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "/parent/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "/parent/child/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[3], "/parent/child/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
      lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
  
      // force specific directories to relocate
      if (RELOCATIONS & 0x1) {
          lfs_dir_t dir;
          lfs_dir_open(&lfs, &dir, "/parent");
          lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
          lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
          lfs_dir_close(&lfs, &dir) => 0;
      }
      if (RELOCATIONS & 0x2) {
          lfs_dir_t dir;
          lfs_dir_open(&lfs, &dir, "/parent/child");
          lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
          lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
          lfs_dir_close(&lfs, &dir) => 0;
      }
  
      // ok, now we move the file, this creates a move that needs to be
      // fixed, possibly in a metadata-pair that needs to be relocated
      //
      // the worst case is if we need to relocate and we need to implicit
      // fix the move in our parent before it falls out of date
      lfs_rename(&lfs, "/parent/1.move_me", "/parent/child/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
      lfs_file_close(&lfs, &files[3]) => 0;
  
      // check that nothing was corrupted
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "/parent") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "child") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/parent/child") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == sizeof("move me"));
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/parent/0.before", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.5") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.6") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.7") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.8") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  
  # move fix in relocation with predecessor
  [cases.test_move_fix_relocation_predecessor]
  in = "lfs.c"
  defines.RELOCATIONS = 'range(8)'
  defines.ERASE_CYCLES = 0xffffffff
  code = '''
      lfs_t lfs;
      lfs_format(&lfs, cfg) => 0;
      lfs_mount(&lfs, cfg) => 0;
  
      lfs_mkdir(&lfs, "/parent") => 0;
      lfs_mkdir(&lfs, "/parent/child") => 0;
      lfs_mkdir(&lfs, "/parent/sibling") => 0;
  
      lfs_file_t file;
      lfs_file_open(&lfs, &file, "/parent/sibling/1.move_me",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "move me",
              sizeof("move me")) => sizeof("move me");
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_open(&lfs, &file, "/parent/sibling/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.1", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/sibling/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.2", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/0.before",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.3", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/2.after",
              LFS_O_WRONLY | LFS_O_CREAT) => 0;
      lfs_file_write(&lfs, &file, "test.4", 7) => 7;
      lfs_file_close(&lfs, &file) => 0;
  
      lfs_file_t files[4];
      lfs_file_open(&lfs, &files[0], "/parent/sibling/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[1], "/parent/sibling/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[2], "/parent/child/0.before",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_open(&lfs, &files[3], "/parent/child/2.after",
              LFS_O_WRONLY | LFS_O_TRUNC) => 0;
      lfs_file_write(&lfs, &files[0], "test.5", 7) => 7;
      lfs_file_write(&lfs, &files[1], "test.6", 7) => 7;
      lfs_file_write(&lfs, &files[2], "test.7", 7) => 7;
      lfs_file_write(&lfs, &files[3], "test.8", 7) => 7;
  
      // force specific directories to relocate
      if (RELOCATIONS & 0x1) {
          lfs_dir_t dir;
          lfs_dir_open(&lfs, &dir, "/parent");
          lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
          lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
          lfs_dir_close(&lfs, &dir) => 0;
      }
      if (RELOCATIONS & 0x2) {
          lfs_dir_t dir;
          lfs_dir_open(&lfs, &dir, "/parent/sibling");
          lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
          lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
          lfs_dir_close(&lfs, &dir) => 0;
      }
      if (RELOCATIONS & 0x4) {
          lfs_dir_t dir;
          lfs_dir_open(&lfs, &dir, "/parent/child");
          lfs_emubd_setwear(cfg, dir.m.pair[0], 0xffffffff) => 0;
          lfs_emubd_setwear(cfg, dir.m.pair[1], 0xffffffff) => 0;
          lfs_dir_close(&lfs, &dir) => 0;
      }
  
      // ok, now we move the file, this creates a move that needs to be
      // fixed, possibly in a metadata-pair that needs to be relocated
      //
      // and now relocations can force us to need to fix our move in either
      // the parent or child before things break
      lfs_rename(&lfs,
              "/parent/sibling/1.move_me",
              "/parent/child/1.move_me") => 0;
  
      lfs_file_close(&lfs, &files[0]) => 0;
      lfs_file_close(&lfs, &files[1]) => 0;
      lfs_file_close(&lfs, &files[2]) => 0;
      lfs_file_close(&lfs, &files[3]) => 0;
  
      // check that nothing was corrupted
      lfs_dir_t dir;
      struct lfs_info info;
      lfs_dir_open(&lfs, &dir, "/parent") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "child") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "sibling") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/parent/sibling") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_dir_open(&lfs, &dir, "/parent/child") => 0;
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, ".") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "..") == 0);
      assert(info.type == LFS_TYPE_DIR);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "0.before") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "1.move_me") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == sizeof("move me"));
      lfs_dir_read(&lfs, &dir, &info) => 1;
      assert(strcmp(info.name, "2.after") == 0);
      assert(info.type == LFS_TYPE_REG);
      assert(info.size == 7);
      lfs_dir_read(&lfs, &dir, &info) => 0;
      lfs_dir_close(&lfs, &dir) => 0;
  
      lfs_file_open(&lfs, &file, "/parent/sibling/0.before", LFS_O_RDONLY) => 0;
      uint8_t buffer[1024];
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.5") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/sibling/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.6") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/0.before", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.7") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_file_open(&lfs, &file, "/parent/child/2.after", LFS_O_RDONLY) => 0;
      lfs_file_read(&lfs, &file, buffer, 7) => 7;
      assert(strcmp((char*)buffer, "test.8") == 0);
      lfs_file_close(&lfs, &file) => 0;
      lfs_unmount(&lfs) => 0;
  '''
  