Zhiyi Zhang (@zhiyi) commented about dlls/kernel32/tests/file.c:
ok(GetLastError() == ERROR_SUCCESS || broken(GetLastError() == ERROR_INVALID_PARAMETER) /* some win8 machines */, "Unexpected error %lu.\n", GetLastError());
+ /* test long file path, the length of the long_dest is larger than MAX_PATH. */ + if (is_enabled_long_path()) + { + wcscpy(long_path_1, temp_path); + wcscat(long_path_1, long_name_1); + SetLastError(0xdeadbeef); + ret = CopyFileExW(source, long_path_1, NULL, NULL, NULL, 0); + ok(ret, "Expected CopyFileExW successed, but got %ld, copy %s -> %s\n", GetLastError(), wine_dbgstr_w(source), wine_dbgstr_w(long_path_1)); + wcscpy(long_path_2, temp_path); + wcscat(long_path_2, long_name_2); + SetLastError(0xdeadbeef); + ret = CopyFileExW(long_path_1, long_path_2, NULL, NULL, NULL, 0);
You should probably use CopyFileExW(long_path_1, dest, ...) so that you're testing long path support for one parameter at a time. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7540#note_99117