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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 "lib/io_context.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;
vector<string>
ext2_ls (vector<string> arguments)
{
using namespace boost::process;
dcpomatic::io_context ios;
future<string> data;
child ch (search_path("e2ls"), arguments, 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;
}
static
void
make_empty_file(boost::filesystem::path file, off_t 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);
}
/** Use the writer code to make a disk and partition and copy a file (in a directory)
* to it, then check that:
* - the partition has inode size 128
* - the file and directory have reasonable timestamps
* - the file can be copied back off the disk
*/
BOOST_AUTO_TEST_CASE (disk_writer_test1)
{
using namespace boost::filesystem;
using namespace boost::process;
Cleanup cl;
path disk = "build/test/disk_writer_test1.disk";
path partition = "build/test/disk_writer_test1.partition";
cl.add(disk);
cl.add(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.
*/
make_random_file(disk, 256 * 1024 * 1024);
make_random_file(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);
dcpomatic::write ({dcp}, disk.string(), partition.string(), nullptr);
BOOST_CHECK_EQUAL (system("/sbin/e2fsck -fn build/test/disk_writer_test1.partition"), 0);
{
dcpomatic::io_context 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"}));
string const unset_date = "1-Jan-1970";
/* Check timestamp of the directory has been set */
auto details = ext2_ls({"-l", partition.string()});
BOOST_REQUIRE (details.size() >= 6);
BOOST_CHECK (details[5] != unset_date);
auto const dir = partition.string() + ":disk_writer_test1";
BOOST_CHECK (ext2_ls({dir}) == vector<string>({"foo"}));
/* Check timestamp of foo */
details = ext2_ls({"-l", dir});
BOOST_REQUIRE (details.size() >= 6);
BOOST_CHECK (details[5] != unset_date);
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");
cl.run();
}
BOOST_AUTO_TEST_CASE (disk_writer_test2)
{
using namespace boost::filesystem;
using namespace boost::process;
remove_all("build/test/disk_writer_test2.disk");
remove_all("build/test/disk_writer_test2.partition");
remove_all("build/test/disk_writer_test2");
Cleanup cl;
path const disk = "build/test/disk_writer_test2.disk";
path const partition = "build/test/disk_writer_test2.partition";
cl.add(disk);
cl.add(partition);
/* Using empty files here still triggers the bug and is much quicker than using random data */
make_empty_file(disk, 31043616768LL);
make_empty_file(partition, 31043571712LL);
auto const dcp = TestPaths::private_data() / "xm";
dcpomatic::write({dcp}, disk.string(), partition.string(), nullptr);
BOOST_CHECK_EQUAL(system("/sbin/e2fsck -fn build/test/disk_writer_test2.partition"), 0);
path const check = "build/test/disk_writer_test2";
create_directory(check);
cl.add(check);
for (auto original: directory_iterator(dcp)) {
auto path_in_copy = path("xm") / original.path().filename();
auto path_in_check = check / original.path().filename();
system("e2cp " + partition.string() + ":" + path_in_copy.string() + " " + path_in_check.string());
check_file(original.path(), path_in_check);
}
cl.run();
}
BOOST_AUTO_TEST_CASE (disk_writer_test3)
{
using namespace boost::filesystem;
using namespace boost::process;
remove_all("build/test/disk_writer_test3.disk");
remove_all("build/test/disk_writer_test3.partition");
remove_all("build/test/disk_writer_test3");
Cleanup cl;
path const disk = "build/test/disk_writer_test3.disk";
path const partition = "build/test/disk_writer_test3.partition";
cl.add(disk);
cl.add(partition);
/* Using empty files here still triggers the bug and is much quicker than using random data */
make_empty_file(disk, 31043616768LL);
make_empty_file(partition, 31043571712LL);
vector<boost::filesystem::path> const dcps = {
TestPaths::private_data() / "xm",
TestPaths::private_data() / "JourneyToJah_TLR-1_F_EN-DE-FR_CH_51_2K_LOK_20140225_DGL_SMPTE_OV"
};
dcpomatic::write(dcps, disk.string(), partition.string(), nullptr);
BOOST_CHECK_EQUAL(system("/sbin/e2fsck -fn build/test/disk_writer_test3.partition"), 0);
path const check = "build/test/disk_writer_test3";
create_directory(check);
cl.add(check);
for (auto dcp: dcps) {
for (auto original: directory_iterator(dcp)) {
auto path_in_copy = dcp.filename() / original.path().filename();
auto path_in_check = check / original.path().filename();
system("e2cp " + partition.string() + ":" + path_in_copy.string() + " " + path_in_check.string());
check_file(original.path(), path_in_check);
}
}
cl.run();
}
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