test code v1

tests/TC059-readlink.md

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+# Test Case: readlink Exact Targets
+
+**Test ID**: TC059-readlink
+**Category**: VFS Integration
+**Priority**: High
+
+## Objective
+
+Verify short, relative, broken, and long symlink targets are returned exactly,
+including the long inline target length and bytes.
+
+## Procedure
+
+Mount vfs/vfs-plain.erofs and run:
+
+    ./g3_vfs_probe readlink /tmp/repo22-g3/mnt/testdir/shortlink
+    ./g3_vfs_probe readlink /tmp/repo22-g3/mnt/testdir/relative-link
+    ./g3_vfs_probe readlink /tmp/repo22-g3/mnt/testdir/broken-link
+    ./g3_vfs_probe readlink /tmp/repo22-g3/mnt/testdir/long-link
+    cmp fixtures/vfs/source/testdir/file.txt \
+      /tmp/repo22-g3/mnt/testdir/shortlink
+    ./g3_vfs_probe expect-error stat \
+      /tmp/repo22-g3/mnt/testdir/broken-link 2
+
+## Expected Results
+
+The helper reports exact targets and hashes: shortlink is file.txt, the
+relative link is subdir/child.txt, broken-link is missing-target, and long-link
+has the recorded 119-byte target. Following valid links matches source; the
+broken target returns errno 2. Record output and cleanup.