test_open_file
if (test_open_file(skel, data_path, pid, true, "open_1"))
if (test_open_file(skel, data_path, pid, false, "open_2"))
if (test_open_file(skel, data_path, pid, true, "open_3"))
test_open_file(skel, data_path, pid, false, "open_4");