guably wrong.  The problem is not with bar, but with
+	 * foo.  However, since foo exists and is a directory and the only
+	 * reliable way to detect whether a directory is readable is to
+	 * attempt to read it, we do not detect the problem until we try
+	 * to access bar.
+	 */
+	ATF_REQUIRE_STREQ("/foo/bar", resb + len - 8);
+
+	/* scenario 6: not a directory */
+	ATF_REQUIRE_EQ(0, close(creat("bar", 0644)));
+	ATF_REQUIRE_ERRNO(ENOTDIR, realpath("bar/baz", resb) == NULL);
+	len = strnlen(resb, sizeof(resb));
+	ATF_REQUIRE(len > 4 && len < sizeof(resb));
+	ATF_REQUIRE_STREQ("/bar", resb + len - 4);
+}
 
+ATF_TP_ADD_TCS(tp)
+{
+	ATF_TP_ADD_TC(tp, realpath_null);
+	ATF_TP_ADD_TC(tp, realpath_empty);
 	ATF_TP_ADD_TC(tp, realpath_buffer_overflow);
 	ATF_TP_ADD_TC(tp, realpath_empty_symlink);
+	ATF_TP_ADD_TC(tp, realpath_partial);
 
 	return atf_no_error();
 }