--- /dev/null
+/*
+ Copyright (C) 2021 Carl Hetherington <cth@carlh.net>
+
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ DCP-o-matic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "lib/content_factory.h"
+#include "lib/dcp_digest_file.h"
+#include "lib/film.h"
+#include "test.h"
+#include <dcp/dcp.h>
+#include <boost/test/unit_test.hpp>
+
+
+BOOST_AUTO_TEST_CASE (dcp_digest_file_test)
+{
+ dcp::DCP dcp("test/data/dcp_digest_test_dcp");
+ dcp.read ();
+ BOOST_REQUIRE_EQUAL (dcp.cpls().size(), 1U);
+
+ write_dcp_digest_file ("build/test/digest.xml", dcp.cpls()[0], "e684e49e89182e907dabe5d9b3bd81ba");
+
+ check_xml ("test/data/digest.xml", "build/test/digest.xml", {});
+}
+