%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2012. 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%
%%
-module(otp_SUITE).
-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
init_per_suite/1,end_per_suite/1]).
-export([undefined_functions/1,deprecated_not_in_obsolete/1,
obsolete_but_not_deprecated/1,call_to_deprecated/1,
call_to_size_1/1,strong_components/1]).
-include_lib("test_server/include/test_server.hrl").
-import(lists, [filter/2,foldl/3,foreach/2]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[undefined_functions, deprecated_not_in_obsolete,
obsolete_but_not_deprecated, call_to_deprecated,
call_to_size_1, strong_components].
groups() ->
[].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_suite(Config) ->
Dog = test_server:timetrap(?t:minutes(10)),
Root = code:root_dir(),
Server = daily_xref,
?line xref:start(Server),
?line xref:set_default(Server, [{verbose,false},
{warnings,false},
{builtins,true}]),
?line {ok,_Relname} = xref:add_release(Server, Root, {name,otp}),
%% If we are running the tests in the source tree, the ERTS application
%% is not in the code path. We must add it explicitly.
case code:lib_dir(erts) of
{error,bad_name} ->
Erts = filename:join([code:root_dir(),"erts","preloaded","ebin"]),
?line {ok,_} = xref:add_directory(Server, Erts, []);
_ ->
ok
end,
?line ?t:timetrap_cancel(Dog),
[{xref_server,Server}|Config].
end_per_suite(Config) ->
Server = ?config(xref_server, Config),
catch xref:stop(Server),
Config.
undefined_functions(Config) when is_list(Config) ->
Server = ?config(xref_server, Config),
%% Exclude calls from generated modules in the SSL application.
ExcludeFrom = "SSL-PKIX|PKIX.*|ssl_pkix_oid",
?line UndefS = xref_base:analysis(undefined_function_calls),
?line Q = io_lib:format("Undef = ~s,"
"ExcludedFrom = ~p:_/_,"
"Undef - Undef | ExcludedFrom",
[UndefS,ExcludeFrom]),
?line {ok,Undef0} = xref:q(Server, lists:flatten(Q)),
?line Undef1 = hipe_filter(Undef0),
?line Undef2 = ssl_crypto_filter(Undef1),
?line Undef3 = edoc_filter(Undef2),
?line Undef = eunit_filter(Undef3),
case Undef of
[] -> ok;
_ ->
Fd = open_log(Config, "undefined_functions"),
foreach(fun ({MFA1,MFA2}) ->
io:format("~s calls undefined ~s",
[format_mfa(Server, MFA1),
format_mfa(MFA2)]),
io:format(Fd, "~s ~s\n",
[format_mfa(Server, MFA1),
format_mfa(MFA2)])
end, Undef),
close_log(Fd),
?line ?t:fail({length(Undef),undefined_functions_in_otp})
end.
hipe_filter(Undef) ->
case erlang:system_info(hipe_architecture) of
undefined ->
filter(fun ({_,{hipe_bifs,_,_}}) -> false;
({_,{hipe,_,_}}) -> false;
({_,{hipe_consttab,_,_}}) -> false;
({_,{hipe_converters,_,_}}) -> false;
({{code,_,_},{Mod,_,_}}) ->
not is_hipe_module(Mod);
({{code_server,_,_},{Mod,_,_}}) ->
not is_hipe_module(Mod);
({{compile,_,_},{Mod,_,_}}) ->
not is_hipe_module(Mod);
({{hipe,_,_},{Mod,_,_}}) ->
%% See comment for the next clause.
not is_hipe_module(Mod);
({{cerl_to_icode,translate_flags1,2},
{hipe_rtl_arch,endianess,0}}) ->
false;
({{Caller,_,_},{Callee,_,_}}) ->
%% Part of the hipe application is here
%% for the sake of Dialyzer. There are many
%% undefined calls within the hipe application.
not is_hipe_module(Caller) orelse
not is_hipe_module(Callee);
(_) -> true
end, Undef);
_Arch ->
filter(fun ({{Mod,_,_},{hipe_bifs,write_u64,2}}) ->
%% Unavailable except in 64 bit AMD. Ignore it.
not is_hipe_module(Mod);
(_) -> true
end, Undef)
end.
is_hipe_module(Mod) ->
case atom_to_list(Mod) of
"hipe_"++_ -> true;
_ -> false
end.
ssl_crypto_filter(Undef) ->
case {code:lib_dir(crypto),code:lib_dir(ssl)} of
{{error,bad_name},{error,bad_name}} ->
filter(fun({_,{ssl,_,_}}) -> false;
({_,{crypto,_,_}}) -> false;
({_,{ssh,_,_}}) -> false;
({_,{ssh_connection,_,_}}) -> false;
({_,{ssh_sftp,_,_}}) -> false;
(_) -> true
end, Undef);
{_,_} -> Undef
end.
edoc_filter(Undef) ->
%% Filter away function call that is catched.
filter(fun({{edoc_lib,uri_get_http,1},{http,request_sync,2}}) -> false;
(_) -> true
end, Undef).
eunit_filter(Undef) ->
filter(fun({{eunit_test,wrapper_test_exported_,0},
{eunit_test,nonexisting_function,0}}) -> false;
(_) -> true
end, Undef).
deprecated_not_in_obsolete(Config) when is_list(Config) ->
?line Server = ?config(xref_server, Config),
?line {ok,DeprecatedFunctions} = xref:q(Server, "DF"),
?line L = foldl(fun({M,F,A}=MFA, Acc) ->
case otp_internal:obsolete(M, F, A) of
no -> [MFA|Acc];
_ -> Acc
end
end, [], DeprecatedFunctions),
case L of
[] -> ok;
_ ->
io:put_chars("The following functions have -deprecated() attributes,\n"
"but are not listed in otp_internal:obsolete/3.\n"),
print_mfas(group_leader(), Server, L),
Fd = open_log(Config, "deprecated_not_obsolete"),
print_mfas(Fd, Server, L),
close_log(Fd),
?line ?t:fail({length(L),deprecated_but_not_obsolete})
end.
obsolete_but_not_deprecated(Config) when is_list(Config) ->
?line Server = ?config(xref_server, Config),
?line {ok,NotDeprecated} = xref:q(Server, "X - DF"),
?line L = foldl(fun({M,F,A}=MFA, Acc) ->
case otp_internal:obsolete(M, F, A) of
no -> Acc;
_ -> [MFA|Acc]
end
end, [], NotDeprecated),
case L of
[] -> ok;
_ ->
io:put_chars("The following functions are listed "
"in otp_internal:obsolete/3,\n"
"but don't have -deprecated() attributes.\n"),
print_mfas(group_leader(), Server, L),
Fd = open_log(Config, "obsolete_not_deprecated"),
print_mfas(Fd, Server, L),
close_log(Fd),
?line ?t:fail({length(L),obsolete_but_not_deprecated})
end.
call_to_deprecated(Config) when is_list(Config) ->
Server = ?config(xref_server, Config),
?line {ok,DeprecatedCalls} = xref:q(Server, "strict(E || DF)"),
foreach(fun ({MFA1,MFA2}) ->
io:format("~s calls deprecated ~s",
[format_mfa(MFA1),format_mfa(MFA2)])
end, DeprecatedCalls),
{comment,integer_to_list(length(DeprecatedCalls))++" calls to deprecated functions"}.
call_to_size_1(Config) when is_list(Config) ->
Server = ?config(xref_server, Config),
%% Applications that do not call erlang:size/1:
Apps = [compiler,debugger,kernel,observer,parsetools,
runtime_tools,stdlib,tools,webtool],
Fs = [{erlang,size,1}],
Q1 = io_lib:format("E || ~p : Fun", [Fs]),
?line {ok,AllCallsToSize1} = xref:q(Server, lists:flatten(Q1)),
Q2 = io_lib:format("E | ~p : App || ~p : Fun", [Apps,Fs]),
?line {ok,CallsToSize1} = xref:q(Server, lists:flatten(Q2)),
case CallsToSize1 of
[] ->
ok;
_ ->
io:format("These calls cause an error:~n"),
foreach(fun ({MFA1,MFA2}) ->
io:format("~s calls soon to be deprecated ~s",
[format_mfa(MFA1),format_mfa(MFA2)])
end, CallsToSize1)
end,
%% Enumerate calls to erlang:size/1 from other applications than
%% the ones known not to call erlang:size/1:
case AllCallsToSize1--CallsToSize1 of
[] ->
ok;
Calls ->
io:format("~n~nThese calls do not cause an error (yet):~n"),
foreach(fun ({MFA1,MFA2}) ->
io:format("~s calls soon to be deprecated ~s",
[format_mfa(MFA1),format_mfa(MFA2)])
end, Calls)
end,
case CallsToSize1 of
[] ->
ok;
_ ->
?line ?t:fail({length(CallsToSize1),calls_to_size_1})
end.
strong_components(Config) when is_list(Config) ->
Server = ?config(xref_server, Config),
?line {ok,Cs} = xref:q(Server, "components AE"),
io:format("\n\nStrong components:\n\n~p\n", [Cs]),
ok.
%%%
%%% Common help functions.
%%%
print_mfas(Fd, Server, MFAs) ->
[io:format(Fd, "~s\n", [format_mfa(Server, MFA)]) || MFA <- MFAs],
ok.
format_mfa({M,F,A}) ->
lists:flatten(io_lib:format("~s:~s/~p", [M,F,A])).
format_mfa(Server, MFA) ->
MFAString = format_mfa(MFA),
AQ = "(App)" ++ MFAString,
AppPrefix = case xref:q(Server, AQ) of
{ok,[App]} -> "[" ++ atom_to_list(App) ++ "]";
_ -> ""
end,
AppPrefix ++ MFAString.
open_log(Config, Name) ->
PrivDir = ?config(priv_dir, Config),
RunDir = filename:dirname(filename:dirname(PrivDir)),
Path = filename:join(RunDir, "system_"++Name++".log"),
{ok,Fd} = file:open(Path, [write]),
Fd.
close_log(Fd) ->
ok = file:close(Fd).
