+ shared_ptr<Film> f = shared_ptr<Film> (new Film (p.string()));
+ f->write_metadata ();
+ return f;
+}
+
+void
+check_file (string ref, string check)
+{
+ uintmax_t N = boost::filesystem::file_size (ref);
+ BOOST_CHECK_EQUAL (N, boost::filesystem::file_size(check));
+ FILE* ref_file = fopen (ref.c_str(), "rb");
+ BOOST_CHECK (ref_file);
+ FILE* check_file = fopen (check.c_str(), "rb");
+ BOOST_CHECK (check_file);
+
+ int const buffer_size = 65536;
+ uint8_t* ref_buffer = new uint8_t[buffer_size];
+ uint8_t* check_buffer = new uint8_t[buffer_size];
+
+ while (N) {
+ uintmax_t this_time = min (uintmax_t (buffer_size), N);
+ size_t r = fread (ref_buffer, 1, this_time, ref_file);
+ BOOST_CHECK_EQUAL (r, this_time);
+ r = fread (check_buffer, 1, this_time, check_file);
+ BOOST_CHECK_EQUAL (r, this_time);
+
+ BOOST_CHECK_EQUAL (memcmp (ref_buffer, check_buffer, this_time), 0);
+ N -= this_time;
+ }
+
+ delete[] ref_buffer;
+ delete[] check_buffer;
+
+ fclose (ref_file);
+ fclose (check_file);