diff options
Diffstat (limited to 'lib/kernel/test')
| -rw-r--r-- | lib/kernel/test/file_SUITE.erl | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index e4c8f0ffaf..c75639ae7e 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -805,6 +805,20 @@ new_modes(Config) when is_list(Config) -> ?line {ok, [$\[]} = ?FILE_MODULE:read(Fd6, 1), ?line ok = ?FILE_MODULE:close(Fd6), + %% write and sync + case ?FILE_MODULE:open(Name1, [write, sync]) of + {ok, Fd7} -> + ok = io:write(Fd7, Marker), + ok = io:put_chars(Fd7, ".\n"), + ok = ?FILE_MODULE:close(Fd7), + {ok, Fd8} = ?FILE_MODULE:open(Name1, [read]), + {ok, Marker} = io:read(Fd8, prompt), + ok = ?FILE_MODULE:close(Fd8); + {error, enotsup} -> + %% for platforms that don't support the sync option + ok + end, + ?line [] = flush(), ?line test_server:timetrap_cancel(Dog), ok. |