test code v1

tests/TC027-dot-omitted-without.md

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+# Test Case: Directory without dot_omitted
+
+**Test ID**: TC027-dot-omitted-without
+
+## Objective
+
+Verify a bit-4-clear directory reads explicit on-disk `.` and `..` entries.
+
+## Fixture
+
+Use `images/compact.erofs` and `/dotdir`. Structured evidence asserts bit 4 is
+clear and names are `.,..,child.txt`; production `dump.erofs --ls` also
+qualifies this baseline.
+
+## Procedure
+
+Host:
+
+```sh
+dump.erofs --ls --path=/dotdir /work/build/repo22-g1/images/compact.erofs
+```
+
+Guest after mount:
+
+```sh
+stat -f 'ino=%i nlink=%l mode=%p' "$mnt/dotdir"
+ls -lai "$mnt/dotdir"
+cmp /tmp/repo22-g1/source/compact/dotdir/child.txt "$mnt/dotdir/child.txt"
+```
+
+## Expected Results
+
+- Host inspection and FreeBSD listing both contain explicit `.` and `..`.
+- Child data matches the source, directory attributes are valid, and cleanup
+  succeeds.