# Test Case: Long-prefix trusted xattr

**Test ID**: TC078-long-prefix-trusted-xattr
**Fixture**: `basic.erofs`, `/prefix-trusted-0`, `/prefix-trusted-1`

## Objective

Verify packed long-prefix reconstruction after the transformer changes prefix
record 1 from user base index 1 to trusted base index 4.

## Manual steps

```sh
lsextattr system /mnt/repo22-g4/prefix-trusted-0
getextattr -qq -x system trusted.repo22.trusted.deep.setting \
  /mnt/repo22-g4/prefix-trusted-0
getextattr -qq -x system trusted.repo22.trusted.deep.setting \
  /mnt/repo22-g4/prefix-trusted-1
```

## Expected results

The full trusted name appears in FreeBSD namespace `system`; values are
`trusted-prefix-value-0` and `trusted-prefix-value-1`. Clean up.