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/*
Copyright (C) 2020-2021 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/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");
}
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