+# Make sure the owner and group are 0 and 1 respectively.
+set _ $(ls -n f); shift; test "$3:$4" = 0:1 || fail=1
+
+# Make sure the correct diagnostic is output
+# Note we output a name even though an id was specified.
+chown -v --from=42 43 f > out || fail=1
+printf "ownership of 'f' retained as $(id -nu)\n" > exp
+compare exp out || fail=1
+
+# Ensure diagnostics work for non existent files.
+chown -v 0 nf > out && fail=1
+printf "failed to change ownership of 'nf' to 0\n" > exp
+compare exp out || fail=1
+
+chown --from=0:1 2:010 f || fail=1
+
+# And now they should be 2 and 10 respectively.
+set _ $(ls -n f); shift; test "$3:$4" = 2:10 || fail=1
+
+ln -s f slink
+# Applying chown to a symlink with --no-dereference
+# should change only the link.
+chown --no-dereference 0:1 slink || fail=1
+# owner/group on the symlink should be set
+set _ $(ls -n slink); shift; test "$3:$4" = 0:1 || fail=1
+# owner/group on the referent should remain unchanged
+set _ $(ls -n f); shift; test "$3:$4" = 2:10 || fail=1
+
+chown --no-dereference --from=0:1 2:010 slink || fail=1
+# owner/group on the symlink should be changed
+set _ $(ls -n slink); shift; test "$3:$4" = 2:10 || fail=1
+
+Exit $fail