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Diffstat (limited to 'lib/diameter/test/diameter_examples_SUITE.erl')
| -rw-r--r-- | lib/diameter/test/diameter_examples_SUITE.erl | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/lib/diameter/test/diameter_examples_SUITE.erl b/lib/diameter/test/diameter_examples_SUITE.erl new file mode 100644 index 0000000000..6d797f6911 --- /dev/null +++ b/lib/diameter/test/diameter_examples_SUITE.erl @@ -0,0 +1,334 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2013. 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% +%% + +%% +%% Test example code under ../examples/code. +%% + +-module(diameter_examples_SUITE). + +-export([suite/0, + all/0]). + +%% testcases +-export([dict/1, dict/0, + code/1, + enslave/1, + start/1, + traffic/1, + stop/1]). + +-export([install/1, + call/1]). + +-include("diameter.hrl"). + +%% =========================================================================== + +-define(util, diameter_util). + +%% The order here is significant and causes the server to listen +%% before the clients connect. +-define(NODES, [compile, server, client]). + +%% Options to ct_slave:start/2. +-define(TIMEOUTS, [{T, 15000} || T <- [boot_timeout, + init_timeout, + start_timeout]]). + +%% @inherits dependencies between example dictionaries. This is needed +%% in order compile them in the right order. Can't compile to erl to +%% find out since @inherits is a beam dependency. +-define(INHERITS, [{rfc4006_cc, [rfc4005_nas]}, + {rfc4072_eap, [rfc4005_nas]}, + {rfc4740_sip, [rfc4590_digest]}]). + +%% Common dictionaries to inherit from examples. +-define(DICT0, [rfc3588_base, rfc6733_base]). + +%% =========================================================================== + +suite() -> + [{timetrap, {seconds, 45}}]. + +all() -> + [dict, + code, + enslave, + start, + traffic, + stop]. + +%% =========================================================================== +%% dict/1 +%% +%% Compile example dictionaries in examples/dict. + +dict() -> + [{timetrap, {minutes, 10}}]. + +dict(_Config) -> + Dirs = [filename:join(H ++ ["examples", "dict"]) + || H <- [[code:lib_dir(diameter)], [here(), ".."]]], + [] = [{F,D,RC} || {_,F} <- sort(find_files(Dirs, ".*\\.dia")), + D <- ?DICT0, + RC <- [make(F,D)], + RC /= ok]. + +sort([{_,_} | _] = Files) -> + lists:sort(fun({A,_},{B,_}) -> + sort([filename:rootname(F) || F <- [A,B]]) + end, + Files); + +sort([A,B] = L) -> + [DA,DB] = [dep([D],[]) || D <- L], + case {[A] -- DB, [B] -- DA} of + {[], [_]} -> %% B depends on A + true; + {[_], []} -> %% A depends on B + false; + {[_],[_]} -> %% or not + length(DA) < length(DB) + end. + +%% Recursively accumulate inherited dictionaries. +dep([D|Rest], Acc) -> + dep(dep(D), Rest, Acc); +dep([], Acc) -> + Acc. + +dep([{Dict, _} | T], Rest, Acc) -> + dep(T, [Dict | Rest], [Dict | Acc]); +dep([], Rest, Acc) -> + dep(Rest, Acc). + +make(Path, Dict0) + when is_atom(Dict0) -> + make(Path, atom_to_list(Dict0)); + +make(Path, Dict0) -> + Dict = filename:rootname(filename:basename(Path)), + {Mod, Pre} = make_name(Dict), + {"diameter_gen_base" ++ Suf = Mod0, _} = make_name(Dict0), + Name = Mod ++ Suf, + try + ok = to_erl(Path, [{name, Name}, + {prefix, Pre}, + {inherits, "rfc3588_base/" ++ Mod0} + | [{inherits, D ++ "/" ++ M ++ Suf} + || {D,M} <- dep(Dict)]]), + ok = to_beam(Name) + catch + throw: {_,_} = E -> + E + end. + +to_erl(File, Opts) -> + case diameter_make:codec(File, Opts) of + ok -> + ok; + No -> + throw({make, No}) + end. + +to_beam(Name) -> + case compile:file(Name ++ ".erl", [return]) of + {ok, _, _} -> + ok; + No -> + throw({compile, No}) + end. + +dep(Dict) -> + case lists:keyfind(list_to_atom(Dict), 1, ?INHERITS) of + {_, Is} -> + lists:map(fun inherits/1, Is); + false -> + [] + end. + +inherits(Dict) + when is_atom(Dict) -> + inherits(atom_to_list(Dict)); + +inherits(Dict) -> + {Name, _} = make_name(Dict), + {Dict, Name}. + +make_name(Dict) -> + {R, [$_|N]} = lists:splitwith(fun(C) -> C /= $_ end, Dict), + {string:join(["diameter_gen", N, R], "_"), "diameter_" ++ N}. + +%% =========================================================================== +%% code/1 +%% +%% Compile example code under examples/code. + +code(Config) -> + Node = slave(hd(?NODES), here()), + [] = rpc:call(Node, + ?MODULE, + install, + [proplists:get_value(priv_dir, Config)]). + +%% Compile on another node since the code path may be modified. +install(PrivDir) -> + Top = install(here(), PrivDir), + Src = filename:join([Top, "examples", "code"]), + Files = find_files([Src], ".*\\.erl"), + [] = [{F,E} || {_,F} <- Files, + {error, _, _} = E <- [compile:file(F, [warnings_as_errors, + return_errors])]]. + +%% Copy include files into a temporary directory and adjust the code +%% path in order for example code to be able to include them with +%% include_lib. This is really only required when running in the reop +%% since generated includes, that the example code wants to +%% include_lib, are under src/gen and there's no way to get get the +%% preprocessor to find these otherwise. Generated hrls are only be +%% under include in an installation. ("Installing" them locally is +%% anathema.) +install(Dir, PrivDir) -> + %% Remove the path added by slave/1 (needed for the rpc:call/4 in + %% compile/1 to find ?MODULE) so the call to code:lib_dir/2 below + %% returns the installed path. + [Ebin | _] = code:get_path(), + true = code:del_path(Ebin), + Top = top(Dir, code:lib_dir(diameter)), + + %% Create a new diameter/include in priv_dir. Copy all includes + %% there, from below ../include and ../src/gen if they exist (in + %% the repo). + Tmp = filename:join([PrivDir, "diameter"]), + TmpInc = filename:join([PrivDir, "diameter", "include"]), + TmpEbin = filename:join([PrivDir, "diameter", "ebin"]), + [] = [{T,E} || T <- [Tmp, TmpInc, TmpEbin], + {error, E} <- [file:make_dir(T)]], + + Inc = filename:join([Top, "include"]), + Gen = filename:join([Top, "src", "gen"]), + Files = find_files([Inc, Gen], ".*\\.hrl"), + [] = [{F,E} || {_,F} <- Files, + B <- [filename:basename(F)], + D <- [filename:join([TmpInc, B])], + {error, E} <- [file:copy(F,D)]], + + %% Prepend the created directory just so that code:lib_dir/1 finds + %% it when compile:file/2 tries to resolve include_lib. + true = code:add_patha(TmpEbin), + Tmp = code:lib_dir(diameter), %% assert + %% Return the top directory containing examples/code. + Top. + +find_files(Dirs, RE) -> + lists:foldl(fun(D,A) -> fold_files(D, RE, A) end, + orddict:new(), + Dirs). + +fold_files(Dir, RE, Acc) -> + filelib:fold_files(Dir, RE, false, fun store/2, Acc). + +store(Path, Dict) -> + orddict:store(filename:basename(Path), Path, Dict). + +%% =========================================================================== + +%% enslave/1 +%% +%% Start two nodes: one for the server, one for the client. + +enslave(Config) -> + Dir = here(), + Nodes = [{N, slave(N, Dir)} || N <- tl(?NODES)], + ?util:write_priv(Config, nodes, Nodes). + +slave(Name, Dir) -> + {ok, Node} = ct_slave:start(Name, ?TIMEOUTS), + ok = rpc:call(Node, + code, + add_pathsa, + [[Dir, filename:join([Dir, "..", "ebin"])]]), + Node. + +here() -> + filename:dirname(code:which(?MODULE)). + +top(Dir, LibDir) -> + File = filename:join([Dir, "depend.sed"]), %% only in the repo + case filelib:is_regular(File) of + true -> filename:join([Dir, ".."]); + false -> LibDir + end. + +%% start/1 + +start(server) -> + ok = diameter:start(), + ok = server:start(), + {ok, Ref} = server:listen(tcp), + [_] = ?util:lport(tcp, Ref, 20), + ok; + +start(client) -> + ok = diameter:start(), + true = diameter:subscribe(client), + ok = client:start(), + {ok, Ref} = client:connect(tcp), + receive #diameter_event{info = {up, Ref, _, _, _}} -> ok end; + +start(Config) -> + Nodes = ?util:read_priv(Config, nodes), + [] = [RC || {T,N} <- Nodes, + RC <- [rpc:call(N, ?MODULE, start, [T])], + RC /= ok]. + +%% traffic/1 +%% +%% Send successful messages from client to server. + +traffic(server) -> + ok; + +traffic(client) -> + {_, MRef} = spawn_monitor(fun() -> call(100) end), + receive {'DOWN', MRef, process, _, Reason} -> Reason end; + +traffic(Config) -> + Nodes = ?util:read_priv(Config, nodes), + [] = [RC || {T,N} <- Nodes, + RC <- [rpc:call(N, ?MODULE, traffic, [T])], + RC /= ok]. + +call(0) -> + exit(ok); + +call(N) -> + {ok, _} = client:call(), + call(N-1). + +%% stop/1 + +stop(Name) + when is_atom(Name) -> + {ok, _Node} = ct_slave:stop(Name), + ok; + +stop(_Config) -> + [] = [RC || N <- ?NODES, RC <- [stop(N)], RC /= ok]. |