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-rw-r--r--lib/kernel/test/file_SUITE.erl39
1 files changed, 37 insertions, 2 deletions
diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl
index 9a77454432..eea9e43dd3 100644
--- a/lib/kernel/test/file_SUITE.erl
+++ b/lib/kernel/test/file_SUITE.erl
@@ -56,7 +56,8 @@
open1/1,
old_modes/1, new_modes/1, path_open/1, open_errors/1]).
-export([ file_info_basic_file/1, file_info_basic_directory/1,
- file_info_bad/1, file_info_times/1, file_write_file_info/1]).
+ file_info_bad/1, file_info_times/1, file_write_file_info/1,
+ file_wfi_helpers/1]).
-export([rename/1, access/1, truncate/1, datasync/1, sync/1,
read_write/1, pread_write/1, append/1, exclusive/1]).
-export([ e_delete/1, e_rename/1, e_make_dir/1, e_del_dir/1]).
@@ -152,7 +153,8 @@ groups() ->
{pos, [], [pos1, pos2, pos3]},
{file_info, [],
[file_info_basic_file, file_info_basic_directory,
- file_info_bad, file_info_times, file_write_file_info]},
+ file_info_bad, file_info_times, file_write_file_info,
+ file_wfi_helpers]},
{consult, [], [consult1, path_consult]},
{eval, [], [eval1, path_eval]},
{script, [], [script1, path_script]},
@@ -1608,6 +1610,39 @@ file_write_file_info(Config) when is_list(Config) ->
[] = flush(),
ok.
+file_wfi_helpers(Config) when is_list(Config) ->
+ RootDir = get_good_directory(Config),
+ io:format("RootDir = ~p", [RootDir]),
+
+ Name = filename:join(RootDir,
+ atom_to_list(?MODULE) ++ "_wfi_helpers"),
+
+ ok = ?FILE_MODULE:write_file(Name, "hello again"),
+ NewTime = {{1997, 02, 15}, {13, 18, 20}},
+ ok = ?FILE_MODULE:change_time(Name, NewTime, NewTime),
+
+ {ok, #file_info{atime=NewActAtime, mtime=NewTime}} =
+ ?FILE_MODULE:read_file_info(Name),
+
+ NewFilteredAtime = filter_atime(NewTime, Config),
+ NewFilteredAtime = filter_atime(NewActAtime, Config),
+
+ %% Make the file unwritable
+ ok = ?FILE_MODULE:change_mode(Name, 8#400),
+ {error, eacces} = ?FILE_MODULE:write_file(Name, "hello again"),
+
+ %% ... and writable again
+ ok = ?FILE_MODULE:change_mode(Name, 8#600),
+ ok = ?FILE_MODULE:write_file(Name, "hello again"),
+
+ %% We have no idea which users will work, so all we can do is to check
+ %% that it returns enoent instead of crashing.
+ {error, enoent} = ?FILE_MODULE:change_group("bogus file name", 0),
+ {error, enoent} = ?FILE_MODULE:change_owner("bogus file name", 0),
+
+ [] = flush(),
+ ok.
+
%% Returns a directory on a file system that has correct file times.
get_good_directory(Config) ->