OTP-8311: Various updates and fixes in Common Test and Test Server

1 files changed, 127 insertions, 0 deletions

diff --git a/lib/common_test/test/ct_test_support_eh.erl b/lib/common_test/test/ct_test_support_eh.erl
new file mode 100644
index 0000000000..fd3ae18746
--- /dev/null
+++ b/lib/common_test/test/ct_test_support_eh.erl
@@ -0,0 +1,127 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2009. 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%
+%%
+
+%%% @doc Event handler module
+%%%
+%%% <p>This is an event handler module used for testing that 
+%%%    Common Test generates events as expected.</p>
+%%%
+-module(ct_test_support_eh).
+
+-behaviour(gen_event).
+
+-include_lib("test_server/include/test_server.hrl").
+-include_lib("common_test/include/ct_event.hrl").
+
+%% gen_event callbacks
+-export([init/1, handle_event/2, handle_call/2, 
+	 handle_info/2, terminate/2, code_change/3]).
+
+-record(state, {cbm=ct_test_support,
+		trace_level=50}).
+
+%%====================================================================
+%% gen_event callbacks
+%%====================================================================
+%%--------------------------------------------------------------------
+%% Function: init(Args) -> {ok, State}
+%% Description: Whenever a new event handler is added to an event manager,
+%% this function is called to initialize the event handler.
+%%--------------------------------------------------------------------
+init(Args) ->
+    
+    S1 = case lists:keysearch(cbm, 1, Args) of
+	     {_,{cbm,CBM}} ->
+		 #state{cbm=CBM};
+	     _ ->
+		 #state{}
+	 end,
+    S2 = case lists:keysearch(trace_level, 1, Args) of
+	     {_,{trace_level,Level}} ->
+		 S1#state{trace_level=Level};
+	     _ ->
+		 S1
+	 end,
+    print(S2#state.trace_level, "Event Handler ~w started!~n", [?MODULE]),
+    {ok,S2}.
+
+%%--------------------------------------------------------------------
+%% Function:  
+%% handle_event(Event, State) -> {ok, State} |
+%%                               {swap_handler, Args1, State1, Mod2, Args2} |
+%%                               remove_handler
+%% Description:Whenever an event manager receives an event sent using
+%% gen_event:notify/2 or gen_event:sync_notify/2, this function is called for
+%% each installed event handler to handle the event. 
+%%--------------------------------------------------------------------
+handle_event(Event, State=#state{cbm=CBM, trace_level=_Level}) ->
+    % print(_Level, "~p: ~p~n", [Event#event.name,Event#event.data]),
+    CBM:handle_event(?MODULE, Event),
+    {ok,State}.
+
+%%--------------------------------------------------------------------
+%% Function: 
+%% handle_call(Request, State) -> {ok, Reply, State} |
+%%                                {swap_handler, Reply, Args1, State1, 
+%%                                  Mod2, Args2} |
+%%                                {remove_handler, Reply}
+%% Description: Whenever an event manager receives a request sent using
+%% gen_event:call/3,4, this function is called for the specified event 
+%% handler to handle the request.
+%%--------------------------------------------------------------------
+handle_call(_Req, State) ->
+    Reply = ok,
+    {ok, Reply, State}.
+
+%%--------------------------------------------------------------------
+%% Function: 
+%% handle_info(Info, State) -> {ok, State} |
+%%                             {swap_handler, Args1, State1, Mod2, Args2} |
+%%                              remove_handler
+%% Description: This function is called for each installed event handler when
+%% an event manager receives any other message than an event or a synchronous
+%% request (or a system message).
+%%--------------------------------------------------------------------
+handle_info(_Info, State) ->
+    {ok, State}.
+
+%%--------------------------------------------------------------------
+%% Function: terminate(Reason, State) -> void()
+%% Description:Whenever an event handler is deleted from an event manager,
+%% this function is called. It should be the opposite of Module:init/1 and 
+%% do any necessary cleaning up. 
+%%--------------------------------------------------------------------
+terminate(_Reason, _State) ->
+    ok.
+
+%%--------------------------------------------------------------------
+%% Function: code_change(OldVsn, State, Extra) -> {ok, NewState} 
+%% Description: Convert process state when code is changed
+%%--------------------------------------------------------------------
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+
+print(Level, _Str, _Args) ->
+    test_server:format(Level, _Str,_Args).
+
+