diff options
Diffstat (limited to 'lib/diameter/test/diameter_util.erl')
| -rw-r--r-- | lib/diameter/test/diameter_util.erl | 142 |
1 files changed, 135 insertions, 7 deletions
diff --git a/lib/diameter/test/diameter_util.erl b/lib/diameter/test/diameter_util.erl index f9942c3408..3fe8ea5363 100644 --- a/lib/diameter/test/diameter_util.erl +++ b/lib/diameter/test/diameter_util.erl @@ -23,16 +23,28 @@ %% Utility functions. %% +%% generic -export([consult/2, run/1, fold/3, foldl/3, - scramble/1, - write_priv/3, - read_priv/2]). + scramble/1]). + +%% diameter-specific +-export([lport/2, + lport/3, + listen/2, + connect/3, + disconnect/4]). + +%% common_test-specific +-export([write_priv/3, + read_priv/2, + map_priv/3]). -define(L, atom_to_list). +%% --------------------------------------------------------------------------- %% consult/2 %% %% Extract info from the app/appup file (presumably) of the named @@ -57,6 +69,7 @@ consult(Path) -> %% Name/Path in the return value distinguish the errors and allow for %% a useful badmatch. +%% --------------------------------------------------------------------------- %% run/1 %% %% Evaluate functions in parallel and return a list of those that @@ -72,6 +85,7 @@ cons(true, _, _, Acc) -> cons(false, F, RC, Acc) -> [{F, RC} | Acc]. +%% --------------------------------------------------------------------------- %% fold/3 %% %% Parallel fold. Results are folded in the order received. @@ -117,6 +131,7 @@ down(MRef) -> down() -> receive {'DOWN', MRef, process, _, Reason} -> {MRef, Reason} end. +%% --------------------------------------------------------------------------- %% foldl/3 %% %% Parallel fold. Results are folded in order of the function list. @@ -132,6 +147,7 @@ recvl([{MRef, F} | L], Ref, Fun, Acc) -> R = down(MRef), recvl(L, Ref, Fun, acc(R, Ref, F, Fun, Acc)). +%% --------------------------------------------------------------------------- %% scramble/1 %% %% Sort a list into random order. @@ -151,7 +167,10 @@ s(Acc, L) -> {H, [T|Rest]} = lists:split(random:uniform(length(L)) - 1, L), s([T|Acc], H ++ Rest). +%% --------------------------------------------------------------------------- %% eval/1 +%% +%% Evaluate a function in one of a number of forms. eval({M,[F|A]}) when is_atom(F) -> @@ -172,17 +191,126 @@ eval(F) when is_function(F,0) -> F(). +%% --------------------------------------------------------------------------- %% write_priv/3 +%% +%% Write an arbitrary term to a named file. write_priv(Config, Name, Term) -> - Dir = proplists:get_value(priv_dir, Config), - Path = filename:join([Dir, Name]), + write(path(Config, Name), Term). + +write(Path, Term) -> ok = file:write_file(Path, term_to_binary(Term)). %% read_priv/2 +%% +%% Read a term from a file. read_priv(Config, Name) -> - Dir = proplists:get_value(priv_dir, Config), - Path = filename:join([Dir, Name]), + read(path(Config, Name)). + +read(Path) -> {ok, Bin} = file:read_file(Path), binary_to_term(Bin). + +%% map_priv/3 +%% +%% Modify a term in a file and return both old and new values. + +map_priv(Config, Name, Fun1) -> + map(path(Config, Name), Fun1). + +map(Path, Fun1) -> + T0 = read(Path), + T1 = Fun1(T0), + write(Path, T1), + {T0, T1}. + +path(Config, Name) + when is_atom(Name) -> + path(Config, ?L(Name)); +path(Config, Name) -> + Dir = proplists:get_value(priv_dir, Config), + filename:join([Dir, Name]). + +%% --------------------------------------------------------------------------- +%% lport/2-3 +%% +%% Lookup the port number of a tcp/sctp listening transport. + +lport(M, Ref) -> + lport(M, Ref, 1). + +lport(M, Ref, Tries) -> + lp(tmod(M), Ref, Tries). + +lp(M, Ref, T) -> + L = [N || {listen, N, _} <- M:ports(Ref)], + if [] /= L orelse T =< 1 -> + L; + true -> + receive after 50 -> ok end, + lp(M, Ref, T-1) + end. + +%% --------------------------------------------------------------------------- +%% listen/2 +%% +%% Add a listening transport on the loopback address and a free port. + +listen(SvcName, Prot) -> + add_transport(SvcName, {listen, opts(Prot, listen)}). + +%% --------------------------------------------------------------------------- +%% connect/3 +%% +%% Add a connecting transport on and connect to a listening transport +%% with the specified reference. + +connect(Client, Prot, LRef) -> + [PortNr] = lport(Prot, LRef, 20), + Ref = add_transport(Client, {connect, opts(Prot, PortNr)}), + true = diameter:subscribe(Client), + ok = receive + {diameter_event, Client, {up, Ref, _, _, _}} -> ok + after 2000 -> + {Client, Prot, PortNr, process_info(self(), messages)} + end, + Ref. + +%% --------------------------------------------------------------------------- +%% disconnect/4 +%% +%% Remove the client transport and expect the server transport to go +%% down. + +disconnect(Client, Ref, Server, LRef) -> + true = diameter:subscribe(Server), + ok = diameter:remove_transport(Client, Ref), + ok = receive + {diameter_event, Server, {down, LRef, _, _}} -> ok + after 2000 -> + {Client, Ref, Server, LRef, process_info(self(), messages)} + end. + +%% --------------------------------------------------------------------------- + +-define(ADDR, {127,0,0,1}). + +add_transport(SvcName, T) -> + {ok, Ref} = diameter:add_transport(SvcName, T), + Ref. + +tmod(tcp) -> + diameter_tcp; +tmod(sctp) -> + diameter_sctp. + +opts(Prot, T) -> + [{transport_module, tmod(Prot)}, + {transport_config, [{ip, ?ADDR}, {port, 0} | opts(T)]}]. + +opts(listen) -> + []; +opts(PortNr) -> + [{raddr, ?ADDR}, {rport, PortNr}]. |