YAZ_CHECK(yaz_filepath_resolve("test_tpath", ".", 0, fullpath));
YAZ_CHECK(!yaz_filepath_resolve("test_tpath", "unknown_dir", 0, fullpath));
YAZ_CHECK(yaz_filepath_resolve("test_tpath", ".", 0, fullpath));
YAZ_CHECK(!yaz_filepath_resolve("test_tpath", "unknown_dir", 0, fullpath));