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tests/TC049-dot-handling.md

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+# Test Case: Dot Entry Handling
+
+**Test ID**: TC049-dot-handling
+**Category**: Directory Operations
+**Priority**: High
+
+## Objective
+
+Verify dot is returned as a directory entry and explicit dot lookup resolves
+to the same vnode as its directory.
+
+## Procedure
+
+Mount vfs/vfs-plain.erofs and run:
+
+    ./readdir_probe /tmp/repo22-g3/mnt/testdir 128
+    stat -f '%i %HT' /tmp/repo22-g3/mnt/testdir
+    stat -f '%i %HT' /tmp/repo22-g3/mnt/testdir/.
+    cmp fixtures/vfs/source/testdir/file.txt \
+      /tmp/repo22-g3/mnt/./testdir/./file.txt
+
+## Expected Results
+
+The traversal includes one dot entry with DT_DIR, both stat commands report
+the same directory NID, and paths containing dot read source-exact data.
+Record output and cleanup.