test_expect_success setup '
 
-       cat ../../COPYING >test &&
+       cat "$TEST_DIRECTORY"/../COPYING >test &&
        git add test &&
        tr \
          "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" \
          "nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM" \
-         <../../COPYING >test
+         <"$TEST_DIRECTORY"/../COPYING >test
 
 '