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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2011. 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%
%%

%%%-------------------------------------------------------------------
%%% File: ct_master_SUITE
%%%
%%% Description:
%%% Test ct_master.
%%%
%%% The suites used for the test are located in the data directory.
%%%-------------------------------------------------------------------
-module(ct_master_SUITE).
-compile(export_all).

-include_lib("common_test/include/ct.hrl").
-include_lib("common_test/include/ct_event.hrl").

-define(eh, ct_test_support_eh).

-define(TEMP_DIR, case os:type() of
		      {win32,_} ->
			  "c:/Temp";
		      _ ->
			  "/tmp"
		  end).

%%--------------------------------------------------------------------
%% TEST SERVER CALLBACK FUNCTIONS
%%--------------------------------------------------------------------

%%--------------------------------------------------------------------
%% Description: Since Common Test starts another Test Server
%% instance, the tests need to be performed on a separate node (or
%% there will be clashes with logging processes etc).
%%--------------------------------------------------------------------
init_per_suite(Config) ->
    ct_test_support:init_per_suite(Config).

end_per_suite(Config) ->
    ct_test_support:end_per_suite(Config).

init_per_testcase(TestCase, Config) ->
    NodeCount = 5,
    NodeNames = [list_to_atom("t_"++integer_to_list(N)) ||
		 N <- lists:seq(1, NodeCount)],
    ct_test_support:init_per_testcase(
      TestCase,[{node_names,NodeNames},
		{master, true}|Config]).

end_per_testcase(TestCase, Config) ->
    case os:type() of
	{win32,_} ->
	    %% If this is a windows run the logs are saved to /tmp and
	    %% then moved to private_dir as a tar because otherwise
	    %% the file names become too long! :(
	    Files = filelib:wildcard(filename:join(?TEMP_DIR,"slave.*")),
	    erl_tar:create(
	      filename:join(
		proplists:get_value(priv_dir,Config),"slaves.tar.gz"),
	      Files,[compressed]),
	    os:cmd("rm -rf "++filename:join(?TEMP_DIR,"slave.*"));
	_ ->
	    ok
    end,
    
    ct_test_support:end_per_testcase(TestCase, Config).

suite() -> [{ct_hooks,[ts_install_cth]}].

all() -> 
    [ct_master_test].

groups() -> 
    [].

init_per_group(_GroupName, Config) ->
	Config.

end_per_group(_GroupName, Config) ->
	Config.

%%--------------------------------------------------------------------
%% TEST CASES
%%--------------------------------------------------------------------
ct_master_test(Config) when is_list(Config) ->
    NodeNames = proplists:get_value(node_names, Config),
    DataDir = ?config(data_dir, Config),
    PrivDir = ?config(priv_dir, Config),

    FileName = filename:join(PrivDir, "ct_master_spec.spec"),
    Suites = [master_SUITE],
    TSFile = make_spec(DataDir, FileName, NodeNames, Suites, Config),

    ERPid = ct_test_support:start_event_receiver(Config),

    [{TSFile,ok}] = run_test(ct_master_test, FileName, Config),

    Events = ct_test_support:get_events(ERPid, Config),

    ct_test_support:log_events(ct_master_test, 
			       reformat(Events, ?eh),
			       PrivDir, []),

    find_events(NodeNames, [{tc_start,{master_SUITE,init_per_suite}},
			    {tc_start,{master_SUITE,first_testcase}},
			    {tc_start,{master_SUITE,second_testcase}},
			    {tc_start,{master_SUITE,third_testcase}},
			    {tc_start,{master_SUITE,end_per_suite}}],
	       Events),
    
    ok.

%%%-----------------------------------------------------------------
%%% HELP FUNCTIONS
%%%-----------------------------------------------------------------
make_spec(DataDir, FileName, NodeNames, Suites, Config) ->
    {ok,HostName} = inet:gethostname(),

    N = lists:map(fun(NodeName) ->
	    {node, NodeName, list_to_atom(atom_to_list(NodeName)++"@"++HostName)}
	end,
	NodeNames),

    C = lists:map(
	  fun(NodeName) ->
		  Rnd = random:uniform(2),
		  if Rnd == 1->
			  {config,NodeName,filename:join(DataDir,
							 "master/config.txt")};
		     true ->
			  {userconfig,NodeName,
			   {ct_config_xml,filename:join(DataDir,
							"master/config.xml")}}
		  end
	  end,
	  NodeNames),
    
    CM = [{config,master,filename:join(DataDir,"master/config.txt")}],

    NS = lists:map(
	   fun(NodeName) ->
		   {init,NodeName,[
				   {node_start,[{startup_functions,[]},
						{monitor_master,true}]},
				   {eval,{erlang,nodes,[]}}
				  ]
		   }
	   end,
	   NodeNames),
    
    S = [{suites, NodeNames, filename:join(DataDir, "master"), Suites}],
    
    PrivDir = ?config(priv_dir, Config),

    LD = lists:map(
	   fun(NodeName) ->
		   {logdir,NodeName,get_log_dir(os:type(),PrivDir, NodeName)}
	   end,
	   NodeNames) ++ [{logdir,master,PrivDir}],

    EvHArgs = [{cbm,ct_test_support},{trace_level,?config(trace_level,Config)}],
    EH = [{event_handler,master,[?eh],EvHArgs}],
    
    Include = [{include,filename:join([DataDir,"master/include"])}],
    
    ct_test_support:write_testspec(N++Include++EH++C++CM++S++LD++NS, FileName).

get_log_dir({win32,_}, _PrivDir, NodeName) ->
    case filelib:is_dir(?TEMP_DIR) of
	false ->
	    file:make_dir(?TEMP_DIR);
	_ ->
	    ok
    end,
    get_log_dir(tmp, ?TEMP_DIR,NodeName);
get_log_dir(_,PrivDir,NodeName) ->
    LogDir = filename:join(PrivDir, io_lib:format("slave.~p", [NodeName])),
    file:make_dir(LogDir),
    LogDir.

run_test(_Name, FileName, Config) ->
    %% run the test twice, using different html versions
    [{FileName,ok}] = ct_test_support:run({ct_master,run,[FileName]},
					  [{ct_master,basic_html,[true]}],
					  Config),
    timer:sleep(5000),
    [{FileName,ok}] = ct_test_support:run({ct_master,run,[FileName]},
					  [{ct_master,basic_html,[false]}],
					  Config).

reformat(Events, EH) ->
    ct_test_support:reformat(Events, EH).

%%%-----------------------------------------------------------------
%%% TEST EVENTS
%%%-----------------------------------------------------------------
find_events([], _CheckEvents, _) ->
    ok;
find_events([NodeName|NodeNames],CheckEvents,AllEvents) ->
    find_events(NodeNames, CheckEvents,
		remove_events(add_host(NodeName),CheckEvents, AllEvents, [])).

remove_events(Node,[{Name,Data} | RestChecks],
	      [{?eh,#event{ name = Name, node = Node, data = Data }}|RestEvs],
	       Acc) ->
    remove_events(Node, RestChecks, RestEvs, Acc);
remove_events(Node, Checks, [Event|RestEvs], Acc) ->
    remove_events(Node, Checks, RestEvs, [Event | Acc]);
remove_events(_Node, [], [], Acc) ->
    lists:reverse(Acc);
remove_events(Node, Events, [], Acc) ->
    test_server:format("Could not find events: ~p in ~p for node ~p",
	   [Events, lists:reverse(Acc), Node]),
    exit(event_not_found).

add_host(NodeName) ->
    {ok, HostName} = inet:gethostname(),
    list_to_atom(atom_to_list(NodeName)++"@"++HostName).
    
expected_events(_) ->
    [].