--- /dev/null
+/*
+ Copyright (C) 2020 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/cross.h"
+#include "lib/ext.h"
+#include "test.h"
+#include <boost/algorithm/string.hpp>
+#include <boost/asio.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/process.hpp>
+#include <boost/test/unit_test.hpp>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <iostream>
+#include <future>
+#include <regex>
+
+
+using std::future;
+using std::string;
+using std::vector;
+
+
+static
+void
+create_empty (boost::filesystem::path file, int size)
+{
+ auto fd = open (file.string().c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
+ BOOST_REQUIRE (fd != -1);
+ auto const r = posix_fallocate (fd, 0, size);
+ BOOST_REQUIRE_EQUAL (r, 0);
+ close (fd);
+}
+
+
+vector<string>
+ext2_ls (string path)
+{
+ using namespace boost::process;
+
+ boost::asio::io_service ios;
+ future<string> data;
+ /* e2ls is from 'e2tools */
+ child ch (search_path("e2ls"), path, std_in.close(), std_out > data, ios);
+ ios.run();
+
+ auto output = data.get();
+ boost::trim (output);
+ vector<string> parts;
+ boost::split (parts, output, boost::is_any_of("\t "), boost::token_compress_on);
+ return parts;
+}
+
+
+/** Use the writer code to make a disk and partition and copy a file to it, then check
+ * that the partition has inode size 128 and that the file can be copied back off using
+ * e2tools.
+ */
+BOOST_AUTO_TEST_CASE (disk_writer_test1)
+{
+ using namespace boost::filesystem;
+ using namespace boost::process;
+
+ remove_all ("build/test/disk_writer_test1.disk");
+ remove_all ("build/test/disk_writer_test1.partition");
+ remove_all ("build/test/disk_writer_test1");
+
+ path disk = "build/test/disk_writer_test1.disk";
+ path partition = "build/test/disk_writer_test1.partition";
+
+ /* lwext4 has a lower limit of correct ext2 partition sizes it can make; 32Mb
+ * does not work here: fsck gives errors about an incorrect free blocks count.
+ */
+ create_empty (disk, 256 * 1024 * 1024);
+ create_empty (partition, 256 * 1024 * 1024);
+
+ path dcp = "build/test/disk_writer_test1";
+ create_directory (dcp);
+ /* Some arbitrary file size here */
+ make_random_file (dcp / "foo", 1024 * 1024 * 32 - 6128);
+
+ PrivilegeEscalator::test = true;
+ dcpomatic::write (dcp, disk.string(), partition.string(), 0);
+
+ BOOST_CHECK_EQUAL (system("/sbin/e2fsck -fn build/test/disk_writer_test1.partition"), 0);
+
+ {
+ boost::asio::io_service ios;
+ future<string> data;
+ child ch ("/sbin/tune2fs", args({"-l", partition.string()}), std_in.close(), std_out > data, ios);
+ ios.run();
+
+ string output = data.get();
+ std::smatch matches;
+ std::regex reg("Inode size:\\s*(.*)");
+ BOOST_REQUIRE (std::regex_search(output, matches, reg));
+ BOOST_REQUIRE (matches.size() == 2);
+ BOOST_CHECK_EQUAL (matches[1].str(), "128");
+ }
+
+ BOOST_CHECK (ext2_ls(partition.string()) == vector<string>({"disk_writer_test1", "lost+found"}));
+ BOOST_CHECK (ext2_ls(partition.string() + ":disk_writer_test1") == vector<string>({"foo"}));
+
+ system ("e2cp " + partition.string() + ":disk_writer_test1/foo build/test/disk_writer_test1_foo_back");
+ check_file ("build/test/disk_writer_test1/foo", "build/test/disk_writer_test1_foo_back");
+}
+