Add testcases

2 files changed, 714 insertions, 0 deletions

diff --git a/lib/kernel/test/Makefile b/lib/kernel/test/Makefile
index 293c368e2a..f84b343de8 100644
--- a/lib/kernel/test/Makefile
+++ b/lib/kernel/test/Makefile
@@ -51,6 +51,7 @@ MODULES= \
 	error_logger_SUITE \
 	error_logger_warn_SUITE \
 	file_SUITE \
+	file_name_SUITE \
 	prim_file_SUITE \
 	ram_file_SUITE \
 	gen_tcp_api_SUITE \
diff --git a/lib/kernel/test/file_name_SUITE.erl b/lib/kernel/test/file_name_SUITE.erl
new file mode 100644
index 0000000000..ba1a829149
--- /dev/null
+++ b/lib/kernel/test/file_name_SUITE.erl
@@ -0,0 +1,713 @@
+-module(file_name_SUITE).
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-include("test_server.hrl").
+-include_lib("kernel/include/file.hrl").
+
+%%
+%% File operations that take filenames as parameters (* not prim_file operation) (** a drive):
+%% altname
+%% copy (*)
+%% del_dir
+%% delete
+%% get_cwd (**)
+%% list_dir
+%% make_dir
+%% make_link
+%% make_symlink
+%% open
+%% read_file
+%% read_file_info
+%% read_link
+%% read_link_info
+%% rename
+%% set_cwd
+%% write_file
+%% write_file_info
+%%
+%% File operations that opens/uses separate driver port (not connected to file)
+%% altname
+%% del_dir
+%% delete
+%% get_cwd
+%% list_dir
+%% make_dir
+%% make_link
+%% make_symlink
+%% read_file_info
+%% read_link
+%% read_link_info
+%% rename
+%% set_cwd
+%% write_file_info
+%% 
+%% Operations that use ?FD_DRV in prim_file
+%% open
+%% read_file
+%% write_file
+%%
+%%
+%% Operations that return a filename/path
+%% altname
+%% get_cwd
+%% list_dir
+%% read_link
+
+-export([all/1,init_per_testcase/2, fin_per_testcase/2]).
+-export([normal/1,icky/1,very_icky/1]).
+
+
+init_per_testcase(_Func, Config) ->
+    Dog = test_server:timetrap(test_server:seconds(60)),
+    [{watchdog,Dog}|Config].
+
+fin_per_testcase(_Func, Config) ->
+    Dog = ?config(watchdog, Config),
+    test_server:timetrap_cancel(Dog).
+
+
+all(suite) ->
+    [normal,icky,very_icky].
+
+normal(suite) ->
+    [];
+normal(doc) ->
+    "Check file operations on normal file names regardless of unicode mode";
+normal(Config) when is_list(Config) ->
+    {ok,Dir} = file:get_cwd(),
+    try
+	Priv = ?config(priv_dir, Config),
+	file:set_cwd(Priv),
+	put(file_module,prim_file),
+	ok = check_normal(prim_file),
+	put(file_module,file),
+	ok = check_normal(file)
+    after
+	file:set_cwd(Dir)
+    end.
+    
+
+icky(suite) ->
+    [];
+icky(doc) ->
+    "Check file operations on normal file names regardless of unicode mode";
+icky(Config) when is_list(Config) ->
+    {ok,Dir} = file:get_cwd(),
+    try
+	Priv = ?config(priv_dir, Config),
+	file:set_cwd(Priv),
+	put(file_module,prim_file),
+	ok = check_icky(prim_file),
+	put(file_module,file),
+	ok = check_icky(file)
+    after
+	file:set_cwd(Dir)
+    end.
+very_icky(suite) ->
+    [];
+very_icky(doc) ->
+    "Check file operations on normal file names regardless of unicode mode";
+very_icky(Config) when is_list(Config) ->
+    {ok,Dir} = file:get_cwd(),
+    try
+	Priv = ?config(priv_dir, Config),
+	file:set_cwd(Priv),
+	put(file_module,prim_file),
+	case check_very_icky(prim_file) of
+	    need_unicode_mode ->
+		{skipped,"VM needs to be started in Unicode filename mode"};
+	    ok ->
+		put(file_module,file),
+		ok = check_very_icky(file)
+	end
+    after
+	file:set_cwd(Dir)
+    end.
+    
+
+check_normal(Mod) -> 
+    {ok,Dir} = Mod:get_cwd(),
+    try
+	?line make_normal_dir(Mod),
+	?line {ok, L0} = Mod:list_dir("."),
+	?line L1 = lists:sort(L0),
+	%erlang:display(L1),
+	?line L1 = lists:sort(list(normal_dir())),
+	?line {ok,D2} = Mod:get_cwd(),
+	?line true = is_list(D2),
+	?line case Mod:altname("fil1") of
+	    {error,enotsup} ->
+		ok;
+	    {ok,LLL} when is_list(LLL) ->
+		ok
+	end,
+	?line [ true = is_list(El) || El <- L1],
+	?line Syms = [ {S,Targ,list_to_binary(get_data(Targ,normal_dir()))} 
+		 || {T,S,Targ} <- normal_dir(), T =:= symlink ],
+	?line [ {ok, Cont} = Mod:read_file(SymL) || {SymL,_,Cont} <- Syms ],
+	?line [ {ok, Targ} = Mod:read_link(SymL) || {SymL,Targ,_} <- Syms ],
+	?line chk_cre_dir(Mod,[{directory,"temp_dir",normal_dir()}]),
+	?line {ok,BeginAt} = Mod:get_cwd(),
+	?line true = is_list(BeginAt),
+	?line {error,enoent} = Mod:set_cwd("tmp_dir"),
+	?line ok = Mod:set_cwd("temp_dir"),
+	?line {ok, NowAt} = Mod:get_cwd(),
+	?line true = BeginAt =/= NowAt,
+	?line ok = Mod:set_cwd(".."),
+	?line {ok,BeginAt} = Mod:get_cwd(),
+	?line rm_r(Mod,"temp_dir"),
+	?line true = is_list(Dir),
+	?line [ true = is_list(FN) || FN <- L0 ],
+	case has_links() of
+	    true ->
+		?line ok = Mod:make_link("fil1","nisse"),
+		?line {ok, <<"fil1">>} = Mod:read_file("nisse"),
+		?line {ok, #file_info{type = regular}} = Mod:read_link_info("nisse"),
+		?line ok = Mod:delete("nisse"),
+		?line {ok, <<"fil1">>} = Mod:read_file("fil1"),
+		?line {error,enoent} = Mod:read_file("nisse"),
+		?line {error,enoent} = Mod:read_link_info("nisse");
+	    false ->
+		ok
+	end,
+	?line [ begin
+	      ?line {ok, FD} = Mod:open(Name,[read]),
+	      ?line {ok, Content} = Mod:read(FD,1024),
+	      ?line ok = file:close(FD)
+	  end || {regular,Name,Content} <- normal_dir() ],
+	?line [ begin
+	      ?line {ok, FD} = Mod:open(Name,[read,binary]),
+	      ?line BC = list_to_binary(Content),
+	      ?line {ok, BC} = Mod:read(FD,1024),
+	      ?line ok = file:close(FD)
+	  end || {regular,Name,Content} <- normal_dir() ],
+	?line Mod:rename("fil1","tmp_fil1"),
+	?line {ok, <<"fil1">>} = Mod:read_file("tmp_fil1"),
+	?line {error,enoent} = Mod:read_file("fil1"),
+	?line Mod:rename("tmp_fil1","fil1"),
+	?line {ok, <<"fil1">>} = Mod:read_file("fil1"),
+	?line {error,enoent} = Mod:read_file("tmp_fil1"),
+	?line {ok,FI} = Mod:read_file_info("fil1"),
+	?line NewMode = FI#file_info.mode band (bnot 8#333),
+	?line NewMode2 = NewMode bor 8#222,
+	?line true = NewMode2 =/= NewMode,
+	?line ok = Mod:write_file_info("fil1",FI#file_info{mode = NewMode}),
+	?line {ok,#file_info{mode = NewMode}} = Mod:read_file_info("fil1"),
+	?line ok = Mod:write_file_info("fil1",FI#file_info{mode = NewMode2}),
+	?line {ok,#file_info{mode = NewMode2}} = Mod:read_file_info("fil1"),
+	ok
+    after
+        case Mod:read_file_info("fil1") of
+	    {ok,FII} ->
+		NewModeI = FII#file_info.mode bor 8#777,
+		Mod:write_file_info("fil1",FII#file_info{mode = NewModeI});
+	    _ ->
+		ok
+	end,
+	Mod:set_cwd(Dir),
+        io:format("Wd now: ~s~n",[Dir])
+    end.
+
+check_icky(Mod) -> 
+    {ok,Dir} = Mod:get_cwd(),
+    try
+	?line true=(length("���") =:= 3),
+	?line UniMode = file:native_name_encoding() =/= latin1,
+	?line make_icky_dir(Mod),
+ 	?line {ok, L0} = Mod:list_dir("."),
+ 	?line L1 = lists:sort(L0),
+	io:format("~p ~p~n",[L1,list(icky_dir())]),
+ 	?line L1 = lists:sort(convlist(list(icky_dir()))),
+ 	?line {ok,D2} = Mod:get_cwd(),
+ 	?line true = is_list(D2),
+%% Altname only on windows, and there are no non native filenames there
+%% 	?line case Mod:altname("fil1") of
+%% 	    {error,enotsup} ->
+%% 		ok;
+%% 	    {ok,LLL} when is_list(LLL) ->
+%% 		ok
+%% 	end,
+ 	?line [ true = ((is_list(El) or (UniMode and is_binary(El))))  || El <- L1],
+ 	?line Syms = [ {S,conv(Targ),list_to_binary(get_data(Targ,icky_dir()))} 
+ 		 || {T,S,Targ} <- icky_dir(), T =:= symlink ],
+ 	?line [ {ok, Cont} = Mod:read_file(SymL) || {SymL,_,Cont} <- Syms ],
+ 	?line [ {ok, Targ} = Mod:read_link(SymL) || {SymL,Targ,_} <- Syms ],
+ 	?line chk_cre_dir(Mod,[{directory,"���_dir",icky_dir()}]),
+ 	?line {ok,BeginAt} = Mod:get_cwd(),
+ 	?line true = is_list(BeginAt),
+ 	?line {error,enoent} = Mod:set_cwd("��_dir"),
+	?line ok = Mod:set_cwd("���_dir"),
+ 	?line {ok, NowAt} = Mod:get_cwd(),
+ 	?line true = is_list(NowAt),
+ 	?line true = BeginAt =/= NowAt,
+ 	?line ok = Mod:set_cwd(".."),
+ 	?line {ok,BeginAt} = Mod:get_cwd(),
+ 	?line rm_r2(Mod,"���_dir"),
+	{OS,TYPE} = os:type(),
+	% Check that treat_icky really converts to the same as the OS
+	case UniMode of
+	    true ->
+		?line chk_cre_dir(Mod,[{directory,"���_dir",[]}]),
+		?line ok = Mod:set_cwd("���_dir"),
+		?line ok = Mod:write_file(<<"���">>,<<"hello">>),
+		?line Treated = treat_icky(<<"���">>),
+		?line {ok,[Treated]} = Mod:list_dir("."),
+		?line ok = Mod:delete(<<"���">>),
+		?line {ok,[]} = Mod:list_dir("."),
+		?line ok = Mod:set_cwd(".."),
+		?line rm_r2(Mod,"���_dir");
+	    false ->
+		ok
+	end,
+
+ 	?line chk_cre_dir(Mod,[{directory,treat_icky(<<"���_dir">>),icky_dir()}]),
+	if 
+	    UniMode and (OS =/= win32) ->
+		?line {error,enoent} = Mod:set_cwd("���_dir");
+	    true ->
+		ok
+	end,
+	?line ok = Mod:set_cwd(treat_icky(<<"���_dir">>)),
+ 	?line {ok, NowAt2} = Mod:get_cwd(),
+	io:format("~p~n",[NowAt2]),
+	% Cannot create raw unicode-breaking filenames on windows or macos
+ 	?line true = ((((not UniMode) or (OS =:= win32) or (TYPE=:=darwin)) and is_list(NowAt2)) orelse ((UniMode) and is_binary(NowAt2))),
+ 	?line true = BeginAt =/= NowAt2,
+ 	?line ok = Mod:set_cwd(".."),
+ 	?line {ok,BeginAt} = Mod:get_cwd(),
+ 	?line rm_r2(Mod,conv(treat_icky(<<"���_dir">>))),
+	case has_links() of
+	    true ->
+		?line ok = Mod:make_link("fil1","nisse�"),
+		?line {ok, <<"fil1">>} = Mod:read_file("nisse�"),
+		?line {ok, #file_info{type = regular}} = Mod:read_link_info("nisse�"),
+		?line ok = Mod:delete("nisse�"),
+		?line ok = Mod:make_link("fil1",treat_icky(<<"nisse�">>)),
+		?line {ok, <<"fil1">>} = Mod:read_file(treat_icky(<<"nisse�">>)),
+		?line {ok, #file_info{type = regular}} = Mod:read_link_info(treat_icky(<<"nisse�">>)),
+		?line ok = Mod:delete(treat_icky(<<"nisse�">>)),
+		?line {ok, <<"fil1">>} = Mod:read_file("fil1"),
+		?line {error,enoent} = Mod:read_file("nisse�"),
+		?line {error,enoent} = Mod:read_link_info("nisse�"),
+		?line {error,enoent} = Mod:read_file(treat_icky(<<"nisse�">>)),
+		?line {error,enoent} = Mod:read_link_info(treat_icky(<<"nisse�">>));
+	    false ->
+		ok
+	end,
+ 	?line [ begin
+ 	      ?line {ok, FD} = Mod:open(Name,[read]),
+ 	      ?line {ok, Content} = Mod:read(FD,1024),
+ 	      ?line ok = file:close(FD)
+ 	  end || {regular,Name,Content} <- icky_dir() ],
+ 	?line [ begin
+ 	      ?line {ok, FD} = Mod:open(Name,[read,binary]),
+ 	      ?line BC = list_to_binary([Content]),
+ 	      ?line {ok, BC} = Mod:read(FD,1024),
+ 	      ?line ok = file:close(FD)
+ 	  end || {regular,Name,Content} <- icky_dir() ],
+ 	?line Mod:rename("���2","���_fil1"),
+ 	?line {ok, <<"���2">>} = Mod:read_file("���_fil1"),
+ 	?line {error,enoent} = Mod:read_file("���2"),
+ 	?line Mod:rename("���_fil1","���2"),
+ 	?line {ok, <<"���2">>} = Mod:read_file("���2"),
+ 	?line {error,enoent} = Mod:read_file("���_fil1"),
+
+ 	?line Mod:rename("���2",treat_icky(<<"���_fil1">>)),
+ 	?line {ok, <<"���2">>} = Mod:read_file(treat_icky(<<"���_fil1">>)),
+	if
+	    UniMode and (OS =/= win32) ->
+		{error,enoent} = Mod:read_file("���_fil1");
+	    true ->
+		ok
+	end,
+ 	?line {error,enoent} = Mod:read_file("���2"),
+ 	?line Mod:rename(treat_icky(<<"���_fil1">>),"���2"),
+ 	?line {ok, <<"���2">>} = Mod:read_file("���2"),
+ 	?line {error,enoent} = Mod:read_file("���_fil1"),
+ 	?line {error,enoent} = Mod:read_file(treat_icky(<<"���_fil1">>)),
+
+ 	?line {ok,FI} = Mod:read_file_info("���2"),
+	?line NewMode = FI#file_info.mode band (bnot 8#333),
+	?line NewMode2 = NewMode bor 8#222,
+ 	?line true = NewMode2 =/= NewMode,
+ 	?line ok = Mod:write_file_info("���2",FI#file_info{mode = NewMode}),
+ 	?line {ok,#file_info{mode = NewMode}} = Mod:read_file_info("���2"),
+ 	?line ok = Mod:write_file_info("���2",FI#file_info{mode = NewMode2}),
+ 	?line {ok,#file_info{mode = NewMode2}} = Mod:read_file_info("���2"),
+
+ 	?line {ok,FII} = Mod:read_file_info(treat_icky(<<"���5">>)),
+ 	?line true = NewMode2 =/= NewMode,
+ 	?line ok = Mod:write_file_info(treat_icky(<<"���5">>),FII#file_info{mode = NewMode}),
+ 	?line {ok,#file_info{mode = NewMode}} = Mod:read_file_info(treat_icky(<<"���5">>)),
+ 	?line ok = Mod:write_file_info(<<"���5">>,FII#file_info{mode = NewMode2}),
+ 	?line {ok,#file_info{mode = NewMode2}} = Mod:read_file_info(treat_icky(<<"���5">>)),
+	ok
+    after
+	Mod:set_cwd(Dir),
+        io:format("Wd now: ~s~n",[Dir])
+    end.
+
+check_very_icky(Mod) -> 
+    {ok,Dir} = Mod:get_cwd(),
+    try
+	?line true=(length("���") =:= 3),
+	?line UniMode = file:native_name_encoding() =/= latin1,
+	if
+	    not UniMode ->
+		throw(need_unicode_mode);
+	    true ->
+		ok
+	end,
+	?line make_very_icky_dir(Mod),
+ 	?line {ok, L0} = Mod:list_dir("."),
+ 	?line L1 = lists:sort(L0),
+ 	?line L1 = lists:sort(convlist(list(very_icky_dir()))),
+ 	?line {ok,D2} = Mod:get_cwd(),
+ 	?line true = is_list(D2),
+ 	?line [ true = ((is_list(El) or is_binary(El)))  || El <- L1],
+ 	?line Syms = [ {S,conv(Targ),list_to_binary(get_data(Targ,very_icky_dir()))} 
+ 		 || {T,S,Targ} <- very_icky_dir(), T =:= symlink ],
+ 	?line [ {ok, Cont} = Mod:read_file(SymL) || {SymL,_,Cont} <- Syms ],
+ 	?line [ {ok, Targ} = Mod:read_link(SymL) || {SymL,Targ,_} <- Syms ],
+ 	?line chk_cre_dir(Mod,[{directory,[1088,1079,1091]++"_dir",very_icky_dir()}]),
+ 	?line {ok,BeginAt} = Mod:get_cwd(),
+ 	?line true = is_list(BeginAt),
+ 	?line {error,enoent} = Mod:set_cwd("��_dir"),
+	?line ok = Mod:set_cwd([1088,1079,1091]++"_dir"),
+ 	?line {ok, NowAt} = Mod:get_cwd(),
+ 	?line true = is_list(NowAt),
+ 	?line true = BeginAt =/= NowAt,
+ 	?line ok = Mod:set_cwd(".."),
+ 	?line {ok,BeginAt} = Mod:get_cwd(),
+ 	?line rm_r2(Mod,[1088,1079,1091]++"_dir"),
+
+	case has_links() of
+	    true ->
+		?line ok = Mod:make_link("fil1","nisse"++[1088,1079,1091]),
+		?line {ok, <<"fil1">>} = 
+		    Mod:read_file("nisse"++[1088,1079,1091]),
+		?line {ok, #file_info{type = regular}} = 
+		    Mod:read_link_info("nisse"++[1088,1079,1091]),
+		?line ok = Mod:delete("nisse"++[1088,1079,1091]),
+		?line ok = Mod:make_link("fil1",<<"nisse�">>),
+		?line {ok, <<"fil1">>} = Mod:read_file(<<"nisse�">>),
+		?line {ok, #file_info{type = regular}} = 
+		    Mod:read_link_info(<<"nisse�">>),
+		?line ok = Mod:delete(<<"nisse�">>),
+		?line {ok, <<"fil1">>} = Mod:read_file("fil1"),
+		?line {error,enoent} = Mod:read_file("nisse"++[1088,1079,1091]),
+		?line {error,enoent} = Mod:read_link_info("nisse"++[1088,1079,1091]),
+		?line {error,enoent} = Mod:read_file(<<"nisse�">>),
+		?line {error,enoent} = Mod:read_link_info(<<"nisse�">>);
+	    false ->
+		ok
+	end,
+ 	?line [ begin
+ 	      ?line {ok, FD} = Mod:open(Name,[read]),
+ 	      ?line {ok, Content} = Mod:read(FD,1024),
+ 	      ?line ok = file:close(FD)
+ 	  end || {regular,Name,Content} <- very_icky_dir() ],
+ 	?line [ begin
+ 	      ?line {ok, FD} = Mod:open(Name,[read,binary]),
+ 	      ?line BC = list_to_binary([Content]),
+ 	      ?line {ok, BC} = Mod:read(FD,1024),
+ 	      ?line ok = file:close(FD)
+ 	  end || {regular,Name,Content} <- very_icky_dir() ],
+ 	?line Mod:rename([956,965,963,954,959,49],
+			 [956,965,963,954,959]++"_fil1"),
+ 	?line {ok, <<"���2">>} = Mod:read_file([956,965,963,954,959]++"_fil1"),
+ 	?line {error,enoent} = Mod:read_file([956,965,963,954,959,49]),
+ 	?line Mod:rename([956,965,963,954,959]++"_fil1",[956,965,963,954,959,49]),
+ 	?line {ok, <<"���2">>} = Mod:read_file([956,965,963,954,959,49]),
+ 	?line {error,enoent} = Mod:read_file([956,965,963,954,959]++"_fil1"),
+
+ 	?line {ok,FI} = Mod:read_file_info([956,965,963,954,959,49]),
+	?line NewMode = FI#file_info.mode band (bnot 8#333),
+	?line NewMode2 = NewMode bor 8#222,
+ 	?line true = NewMode2 =/= NewMode,
+ 	?line ok = Mod:write_file_info([956,965,963,954,959,49],
+				       FI#file_info{mode = NewMode}),
+ 	?line {ok,#file_info{mode = NewMode}} = 
+	           Mod:read_file_info([956,965,963,954,959,49]),
+ 	?line ok = Mod:write_file_info([956,965,963,954,959,49],
+				       FI#file_info{mode = NewMode2}),
+ 	?line {ok,#file_info{mode = NewMode2}} = 
+	          Mod:read_file_info([956,965,963,954,959,49]),
+	ok
+    catch
+	throw:need_unicode_mode ->
+	    io:format("Sorry, can only run in unicode mode.~n"),
+	    need_unicode_mode
+    after
+	Mod:set_cwd(Dir),
+        io:format("Wd now: ~s~n",[Dir])
+    end.
+
+%%
+%% Utilities
+%%
+
+
+rm_rf(Mod,Dir) ->
+    case  Mod:read_link_info(Dir) of
+	{ok, #file_info{type = directory}} ->
+	    {ok, Content} = Mod:list_dir(Dir),
+	    [ rm_rf(Mod,filename:join(Dir,C)) || C <- Content ],
+	    Mod:del_dir(Dir),
+	    ok;
+	{ok, #file_info{}} ->
+	    Mod:delete(Dir);
+	_ ->
+	    ok
+    end.
+
+rm_r(Mod,Dir) ->
+    %erlang:display({rm_r,Dir}),
+    case  Mod:read_link_info(Dir) of
+	{ok, #file_info{type = directory}} ->
+	    {ok,#file_info{type = directory}} =  Mod:read_file_info(Dir),
+	    {ok, Content} = Mod:list_dir(Dir),
+	    [ true = is_list(Part) || Part <- Content ],
+	    [ true = is_list(filename:join(Dir,Part)) || Part <- Content ],
+	    [ rm_r(Mod,filename:join(Dir,C)) || C <- Content ],
+	    ok = Mod:del_dir(Dir),
+	    ok;
+	{ok, #file_info{type = regular}} ->
+	    {ok,#file_info{type = regular}} =  Mod:read_file_info(Dir),
+	    ok = Mod:delete(Dir);
+	{ok, #file_info{type = symlink}} ->
+	    ok = Mod:delete(Dir)
+    end.
+%% For icky test, allow binaries sometimes
+rm_r2(Mod,Dir) ->
+    %erlang:display({rm_r2,Dir}),
+    case  Mod:read_link_info(Dir) of
+	{ok, #file_info{type = directory}} ->
+	    {ok,#file_info{type = directory}} =  Mod:read_file_info(Dir),
+	    {ok, Content} = Mod:list_dir(Dir),
+	    UniMode = file:native_name_encoding() =/= latin1,
+	    [ true = (is_list(Part) orelse UniMode) || Part <- Content ],
+	    [ true = (is_list(filename:join(Dir,Part)) orelse UniMode) || Part <- Content ],
+	    [ rm_r2(Mod,filename:join(Dir,C)) || C <- Content ],
+	    ok = Mod:del_dir(Dir),
+	    ok;
+	{ok, #file_info{type = regular}} ->
+	    {ok,#file_info{type = regular}} =  Mod:read_file_info(Dir),
+	    ok = Mod:delete(Dir);
+	{ok, #file_info{type = symlink}} ->
+	    ok = Mod:delete(Dir)
+    end.
+chk_cre_dir(_,[]) ->
+    ok;
+chk_cre_dir(Mod,[{regular,Name,Content}|T]) ->
+    ok = Mod:write_file(Name,Content),
+    chk_cre_dir(Mod,T);
+chk_cre_dir(Mod,[{link,Name,Target}|T]) ->
+    ok = Mod:make_link(Target,Name),
+    chk_cre_dir(Mod,T);
+chk_cre_dir(Mod,[{symlink,Name,Target}|T]) ->
+    ok = Mod:make_symlink(Target,Name),
+    chk_cre_dir(Mod,T);
+chk_cre_dir(Mod,[{directory,Name,Content}|T]) ->
+    ok = Mod:make_dir(Name),
+    Content2 = [{Ty,filename:join(Name,N),case Ty of link -> filename:join(Name,C); _ -> C end} || {Ty,N,C} <- Content ],
+    chk_cre_dir(Mod,Content2),
+    chk_cre_dir(Mod,T).
+ 
+has_links() ->   
+    case os:type() of
+	{win32,_} ->
+	    case os:version() of
+		{N,NN,_} when (N > 5) orelse (NN > 1) ->
+		    true;
+		_ ->
+		    false
+	    end;
+	_ ->
+	    true
+    end.
+
+make_normal_dir(Mod) ->
+    rm_rf(Mod,"normal_dir"),
+    Mod:make_dir("normal_dir"),
+    Mod:set_cwd("normal_dir"),
+    Mod:write_file("fil1","fil1"),
+    Mod:write_file("fil2","fil2"),
+    case has_links() of
+	true ->
+	    Mod:make_link("fil2","fil3"),
+	    Mod:make_symlink("fil2","fil4");
+	_ ->
+	    ok
+    end,
+    Mod:make_dir("subdir"),
+    Mod:write_file(filename:join("subdir","subfil1"),"subfil1"),
+    ok.
+    
+normal_dir() ->
+    [{regular,"fil1","fil1"},
+     {regular,"fil2","fil2"}] ++
+	case has_links() of
+	    true ->
+		[{regular,"fil3","fil2"},
+		 {symlink,"fil4","fil2"}];
+	    false ->
+		[]
+	end ++
+	[{directory,"subdir",
+	  [{regular,"subfil1","subfil1"}]}].
+
+make_icky_dir(Mod) ->
+    rm_rf(Mod,"icky_dir"),
+    Icky=icky_dir(),
+    chk_cre_dir(Mod,[{directory,"icky_dir",linkify([],Icky)}]),
+    Mod:set_cwd("icky_dir"),
+    ok.
+
+linkify(_Passed,[]) ->
+    [];
+linkify(Passed,[{regular,Name,Content}|T]) ->
+    Regulars = [ {N,C} || {regular,N,C} <- Passed, N =/= Name ],
+    case lists:keysearch(Content,2,Regulars) of
+	{value, {Linkto, Content}} ->
+	    [{link,Name,Linkto} | linkify(Passed,T)];
+	_ ->
+	    [{regular,Name,Content} | linkify([{regular,Name,Content}|Passed],T)]
+    end;
+linkify(Passed,[{directory, Name, Content}|T]) ->
+    [{directory,Name, linkify(Content,Content)}|linkify(Passed,T)];
+linkify(Passed,[H|T]) ->
+    [H|linkify([H|Passed],T)].
+
+icky_dir() ->
+    [{regular,"fil1","fil1"},
+     {regular,"���2","���2"}] ++
+	case has_links() of
+	    true ->
+		[{regular,"���3","���2"},
+		 {symlink,"���4","���2"}];
+	    false ->
+		[]
+	end ++
+	[{regular,treat_icky(<<"���5">>),"���5"}] ++
+	 case has_links() of
+	     true -> 
+		 [{symlink,treat_icky(<<"���6">>),treat_icky(<<"���5">>)}];
+	     false -> 
+		 []
+	 end ++
+	[{directory,treat_icky(<<"���subdir2">>),
+	  [{regular,treat_icky(<<"���subfil2">>),"���subfil12"},
+	   {regular,"���subfil3","���subfil13"}]},
+	 {directory,"���subdir",
+	  [{regular,"���subfil1","���subfil1"}]}].
+
+make_very_icky_dir(Mod) ->
+    rm_rf(Mod,"very_icky_dir"),
+    Icky=very_icky_dir(),
+    chk_cre_dir(Mod,[{directory,"very_icky_dir",linkify([],Icky)}]),
+    Mod:set_cwd("very_icky_dir"),
+    ok.
+
+very_icky_dir() ->
+    [{regular,"fil1","fil1"},
+     {regular,[956,965,963,954,959,49],"���2"}] ++
+	case has_links() of
+	    true ->
+		[{regular,[956,965,963,954,959,50],"���2"},
+		 {symlink,[956,965,963,954,959,51],[956,965,963,954,959,49]}];
+	    false ->
+		[]
+	end ++
+     [{regular,treat_icky(<<"���5">>),"���5"}] ++
+	case has_links() of
+	    true ->
+		[{symlink,treat_icky(<<"���6">>),treat_icky(<<"���5">>)}];
+	    false -> 
+		[]
+	end ++
+      [{directory,treat_icky(<<"���subdir2">>),
+      [{regular,treat_icky(<<"���subfil2">>),"���subfil12"},
+       {regular,"���subfil3","���subfil13"}]},
+      {directory,[956,965,963,954,959]++"subdir1",
+       [{regular,[956,965,963,954,959]++"subfil1","���subfil1"}]}].
+
+%% Some OS'es simply do not allow non UTF8 filenames
+treat_icky(Bin) ->
+    case os:type() of
+	{unix,darwin} ->
+	    procentify(Bin);
+	{win32,_} ->
+	    binary_to_list(Bin);
+	_ ->
+	    Bin
+    end.
+
+procentify(<<>>) ->
+    <<>>;
+procentify(<<X:8,Rst/binary>>) when X > 127 ->
+    T=procentify(Rst),
+    Y = list_to_binary([$% 
+			| io_lib:format("~2.16B",[X])]),
+    <<Y/binary,T/binary>>;
+procentify(<<X:8,Rst/binary>>) ->
+    T=procentify(Rst),
+    <<X:8,T/binary>>.
+
+
+list([]) ->
+    [];
+list([{_,Name,_} | T]) ->
+    [Name | list(T)].
+    
+
+get_data(FN,List) ->
+    case lists:keysearch(FN,2,List) of
+	{value,{regular,FN,C}} ->
+	    C;
+	{value,{symlink,FN,NewFN}} ->
+	    get_data(NewFN,List);
+	_->
+	    []
+    end.
+
+
+convlist(L) ->
+    convlist(file:native_name_encoding(),L).
+convlist(latin1,[Bin|T]) when is_binary(Bin) ->
+    %erlang:display('Convert...'),
+    [binary_to_list(Bin)| convlist(latin1,T)];
+convlist(Any,[H|T]) ->
+    [H|convlist(Any,T)];
+convlist(_,[]) ->
+    [].
+
+conv(L) ->
+    NoUniMode = file:native_name_encoding() =:= latin1,
+    if 
+	NoUniMode, is_binary(L) ->
+	    binary_to_list(L);
+	true ->
+	    L
+    end.
+
+	
+    
+