%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2003-2010. 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(vts). -export([start/0, init_data/4, stop/0, report/2]). -export([config_data/0, start_link/0]). -export([start_page/2, title_frame/2, menu_frame/2, welcome_frame/2, config_frame/2, add_config_file/2, remove_config_file/2, run_frame/2, add_test_dir/2, remove_test_dir/2, select_case/2, select_suite/2, run_test/2, result_frameset/2, result_summary_frame/2, no_result_log_frame/2, redirect_to_result_log_frame/2]). -export([test_info/3]). -define(START_PAGE,"/vts_erl/vts/start_page"). -define(tests,vts_tests). %% Colors -define(INFO_BG_COLOR,"#C0C0EA"). -record(state,{tests=[],config=[],event_handler=[],test_runner, running=0,reload_results=false,start_dir,current_log_dir, total=0,ok=0,fail=0,skip=0,testruns=[]}). %%%----------------------------------------------------------------- %%% User API start() -> webtool:start(), webtool:start_tools([],"app=vts"). init_data(ConfigFiles,EvHandlers,LogDir,Tests) -> call({init_data,ConfigFiles,EvHandlers,LogDir,Tests}). stop() -> webtool:stop_tools([],"app=vts"), webtool:stop(). report(What,Data) -> call({report,What,Data}). %%%----------------------------------------------------------------- %%% Return config data used by webtool config_data() -> {ok,LogDir} = case lists:keysearch(logdir,1,init:get_arguments()) of {value,{logdir,[LogD]}} -> {ok,filename:absname(LogD)}; false -> file:get_cwd() end, {vts, [{web_data,{"VisualTestServer",?START_PAGE}}, {alias,{erl_alias,"/vts_erl",[?MODULE]}}, {alias,{"/log_dir",LogDir}}, {start,{child,{{local,?MODULE}, {?MODULE,start_link,[]}, permanent,100,worker,[?MODULE]}}} ]}. start_link() -> case whereis(?MODULE) of undefined -> Self = self(), Pid = spawn_link(fun() -> init(Self) end), MRef = erlang:monitor(process,Pid), receive {Pid,started} -> erlang:demonitor(MRef, [flush]), {ok,Pid}; {'DOWN',MRef,process,_,Reason} -> {error,{vts,died,Reason}} end; Pid -> {ok,Pid} end. start_page(_Env,_Input) -> call(start_page). title_frame(_Env,_Input) -> call(title_frame). welcome_frame(_Env,_Input) -> call(welcome_frame). menu_frame(_Env,_Input) -> call(menu_frame). config_frame(_Env,_Input) -> call(config_frame). add_config_file(_Env,Input) -> call({add_config_file,Input}). remove_config_file(_Env,Input) -> call({remove_config_file,Input}). run_frame(_Env,_Input) -> call(run_frame). add_test_dir(_Env,Input) -> call({add_test_dir,Input}). remove_test_dir(_Env,Input) -> call({remove_test_dir,Input}). select_suite(_Env,Input) -> call({select_suite,Input}). select_case(_Env,Input) -> call({select_case,Input}). run_test(_Env,_Input) -> call(run_test). result_frameset(_Env,_Input) -> call(result_frameset). redirect_to_result_log_frame(_Env,_Input) -> call(redirect_to_result_log_frame). result_summary_frame(_Env,_Input) -> call(result_summary_frame). no_result_log_frame(_Env,_Input) -> call(no_result_log_frame). aborted() -> call(aborted). test_info(_VtsPid,Type,Data) -> call({test_info,Type,Data}). init(Parent) -> register(?MODULE,self()), process_flag(trap_exit,true), Parent ! {self(),started}, {ok,Cwd} = file:get_cwd(), InitState = #state{start_dir=Cwd}, loop(InitState). loop(State) -> receive {{init_data,Config,EvHandlers,LogDir,Tests},From} -> %% ct:pal("State#state.current_log_dir=~p", [State#state.current_log_dir]), NewState = State#state{config=Config,event_handler=EvHandlers, current_log_dir=LogDir,tests=Tests}, ct_install(NewState), return(From,ok), loop(NewState); {start_page,From} -> return(From,start_page1()), loop(State); {title_frame,From} -> return(From,title_frame1()), loop(State); {welcome_frame,From} -> return(From,welcome_frame1()), loop(State); {menu_frame,From} -> return(From,menu_frame1()), loop(State); {config_frame,From} -> return(From,config_frame1(State)), loop(State); {{add_config_file,Input},From} -> {Return,State1} = add_config_file1(Input,State), ct_install(State1), return(From,Return), loop(State1); {{remove_config_file,Input},From} -> {Return,State1} = remove_config_file1(Input,State), ct_install(State1), return(From,Return), loop(State1); {run_frame,From} -> return(From,run_frame1(State)), loop(State); {{add_test_dir,Input},From} -> {Return,State1} = add_test_dir1(Input,State), return(From,Return), loop(State1); {{remove_test_dir,Input},From} -> {Return,State1} = remove_test_dir1(Input,State), return(From,Return), loop(State1); {{select_suite,Input},From} -> {Return,State1} = select_suite1(Input,State), return(From,Return), loop(State1); {{select_case,Input},From} -> {Return,State1} = select_case1(Input,State), return(From,Return), loop(State1); {run_test,From} -> State1 = run_test1(State), return(From,redirect_to_result_frameset1()), loop(State1); {result_frameset,From} -> return(From,result_frameset1(State)), loop(State); {redirect_to_result_log_frame,From} -> return(From,redirect_to_result_log_frame1(State)), loop(State); {result_summary_frame,From} -> return(From,result_summary_frame1(State)), loop(State); stop_reload_results -> file:set_cwd(State#state.start_dir), loop(State#state{reload_results=false}); {no_result_log_frame,From} -> return(From,no_result_log_frame1()), loop(State); {aborted,From} -> return(From,ok), loop(State#state{test_runner=undefined,running=0}); {{report,What,Data},From} -> State1 = report1(What,Data,State), return(From,ok), loop(State1); {stop,From} -> return(From,ok); {'EXIT',Pid,Reason} -> case State#state.test_runner of Pid -> io:format("ERROR: test runner crashed: ~p\n",[Reason]); _ -> ignore end, loop(State); {{test_info,_Type,_Data},From} -> return(From,ok), loop(State) end. call(Msg) -> case whereis(?MODULE) of undefined -> {error,no_proc}; Pid -> MRef = erlang:monitor(process,Pid), Ref = make_ref(), Pid ! {Msg,{self(),Ref}}, receive {Ref, Result} -> erlang:demonitor(MRef, [flush]), Result; {'DOWN',MRef,process,_,Reason} -> {error,{process_down,Pid,Reason}} end end. return({To,Ref},Result) -> To ! {Ref, Result}. run_test1(State=#state{tests=Tests,current_log_dir=LogDir}) -> Self=self(), RunTest = fun() -> case ct_run:do_run(Tests,[],LogDir) of {error,_Reason} -> aborted(); _ -> ok end, unlink(Self) end, Pid = spawn_link(RunTest), Total = receive {{test_info,start_info,{_,_,Cases}},From} -> return(From,ok), Cases; EXIT = {'EXIT',_,_} -> self() ! EXIT after 30000 -> 0 end, State#state{test_runner=Pid,running=length(Tests), total=Total,ok=0,fail=0,skip=0,testruns=[]}. ct_install(#state{config=Config,event_handler=EvHandlers, current_log_dir=LogDir}) -> ct_run:install([{config,Config},{event_handler,EvHandlers}],LogDir). %%%----------------------------------------------------------------- %%% HTML start_page1() -> header("Visual Test Server Start Page",start_page_frameset()). start_page_frameset() -> frameset( "ROWS=\"60,*\"", [frame(["NAME=\"title\" SRC=\"./title_frame\""]), frameset( "COLS=\"150,*\"", [frame(["NAME=\"menu\" SRC=\"./menu_frame\""]), frame(["NAME=\"main\" SRC=\"./welcome_frame\""])])]). title_frame1() -> header(body("BGCOLOR=lightgrey TEXT=darkgreen",title_body())). title_body() -> p("ALIGN=center",font("SIZE=\"+3\"",b("Visual Test Server"))). welcome_frame1() -> header(body(welcome_body())). welcome_body() -> table( "WIDTH=100% HEIGHT=60%", [tr("VALIGN=middle", td("ALIGN=center", font("SIZE=6", ["Welcome to the",br(), "Visual Test Server"])))]). menu_frame1() -> header(body(menu_body())). menu_body() -> [h2("Content"), ul([ li(href(["TARGET=\"main\""],"./config_frame","Config")), li(href(["TARGET=\"main\""],"./run_frame","Run")), li(href(["TARGET=\"main\""],"./result_frameset","Result")) ]), h2("Logs"), ul([ li(href(["TARGET=\"new\""],"/log_dir/index.html","Last Runs")), li(href(["TARGET=\"new\""],"/log_dir/all_runs.html","All Runs")) ]) ]. config_frame1(State) -> header("Config",body(config_body(State))). config_body(State) -> Entry = [input("TYPE=file NAME=browse SIZE=40"), input("TYPE=hidden NAME=file")], AddForm = form( "NAME=read_file_form METHOD=post ACTION=\"./add_config_file\"", table( "BORDER=0", [tr( [td(Entry), td("ALIGN=center", input("TYPE=submit onClick=\"file.value=browse.value;\"" " VALUE=\"Add\""))])])), {Text,RemoveForm} = case State#state.config of [] -> T = "To be able to run any tests, one or more configuration " "files must be added. Enter the name of the configuration " "file below and click the \"Add\" button.", R = "", {T,R}; Files -> T = "The currently known configuration files are listed below. " "To add a file, type the filename in the entry and " "click the \"Add\" button. " "To remove a file, select it and click the \"Remove\" " "button.", ConfigFiles = [option(File) || File <- Files], Select = select("NAME=file TITLE=\"Select Config File\"" " MULTIPLE=true", ConfigFiles), R = form(["NAME=remove_config METHOD=post ", "ACTION=\"./remove_config_file\""], table( "BORDER=0", [tr(td("ALIGN=center",Select)), tr(td("ALIGN=center", input("TYPE=submit VALUE=\"Remove\"")))])), {T,R} end, [h1("ALIGN=center","Config"), table( "WIDTH=600 ALIGN=center CELLPADDING=5", [tr(td(["BGCOLOR=",?INFO_BG_COLOR],Text)), tr(td("ALIGN=center",AddForm)), tr(td("ALIGN=center",RemoveForm))])]. add_config_file1(Input,State) -> State1 = case get_input_data(Input,"file") of "" -> State; File -> State#state{config=[File|State#state.config]} end, Return = config_frame1(State1), {Return,State1}. remove_config_file1(Input,State) -> Files = get_all_input_data(Input,"file"), State1 = State#state{config=State#state.config--Files}, Return = config_frame1(State1), {Return,State1}. run_frame1(State) -> header("Run Test",body(run_body(State))). run_body(#state{running=Running}) when Running>0 -> [h1("ALIGN=center","Run Test"), p(["Test are ongoing: ",href("./result_frameset","Results")])]; run_body(State) -> ConfigList = ul([li(File) || File <- State#state.config]), ConfigFiles = [h3("Config Files"), ConfigList], AddDirForm = form( "NAME=add_dir_form METHOD=post ACTION=\"./add_test_dir\"", table( "BORDER=0", [tr(td("COLSPAN=2","Enter test directory")), tr( [td(input("TYPE=text NAME=dir SIZE=40")), td("ALIGN=center", input("TYPE=submit onClick=\"dir.value=browse.value;\"" " VALUE=\"Add Test Dir\""))])])), {LoadedTestsTable,Submit} = case create_testdir_entries(State#state.tests,1) of [] -> {"",""}; TestDirs -> Heading = tr([th(""), th("ALIGN=left","Directory"), th("ALIGN=left","Suite"), th("ALIGN=left","Case")]), {table("CELLPADDING=5",[Heading,TestDirs]), submit_button()} end, %% It should be ok to have no config-file! Body = %% case State#state.config of %% [] -> %% p("ALIGN=center", %% href("./config_frame","Please select one or %% more config files")); %% _ -> table( "WIDTH=100%", [tr(td(ConfigFiles)), tr(td("")), tr(td(AddDirForm)), tr(td("")), tr(td(LoadedTestsTable)), tr(td(Submit))]), %% end, [h1("ALIGN=center","Run Test"), Body]. create_testdir_entries([{Dir,Suite,Case}|Tests],N) -> [testdir_entry(Dir,Suite,Case,N)|create_testdir_entries(Tests,N+1)]; create_testdir_entries([],_N) -> []. testdir_entry(Dir,Suite,Case,N) -> NStr = vts_integer_to_list(N), tr([td(delete_button(NStr)), td(Dir), td(suite_select(Dir,Suite,NStr)), td(case_select(Dir,Suite,Case,NStr))]). delete_button(N) -> form(["NAME=remove_dir_form METHOD=post ACTION=\"./remove_test_dir\""], [input(["TYPE=hidden NAME=dir VALUE=\'",N,"\'"]), input(["TYPE=submit VALUE=X"])]). suite_select(Dir,Suite,N) -> case filelib:wildcard(filename:join(Dir,"*_SUITE.erl")) of [] -> select("NAME=suite TITLE=\"Select suite\"",""); Suites0 -> Suites = [filename:basename(filename:rootname(S)) || S <- Suites0], select("NAME=suite TITLE=\"Select suite\"", options(["all"|Suites],atom_to_list(Suite),N,"select_suite")) end. case_select(_Dir,all,_,N) -> select("NAME=case TITLE=\"Select case\"", options(["all"],"all",N,"select_case")); case_select(Dir,Suite,Case,N) -> MakeResult = case application:get_env(common_test, auto_compile) of {ok,false} -> ok; _ -> UserInclude = case application:get_env(common_test, include) of {ok,UserInclDirs} when length(UserInclDirs) > 0 -> [{i,UserInclDir} || UserInclDir <- UserInclDirs]; _ -> [] end, ct_run:run_make(Dir,Suite,UserInclude) end, case MakeResult of ok -> code:add_pathz(Dir), case catch apply(Suite,all,[]) of {'EXIT',Reason} -> io:format("\n~p\n",[Reason]), red(["COULD NOT READ TESTCASES!!",br(), "See erlang shell for info"]); {skip,_Reason} -> select("NAME=case TITLE=\"Select case\"", options(["all"],"all",N,"select_case")); AllCasesAtoms -> AllCases = [atom_to_list(C) || C <- AllCasesAtoms, is_atom(C)], select("NAME=case TITLE=\"Select case\"", options(["all"|AllCases],atom_to_list(Case), N,"select_case")) end; _Error -> red(["COMPILATION ERROR!!",br(), "See erlang shell for info",br(), "Reload this page when errors are fixed"]) end. options([Selected|Elements],Selected,N,Func) -> [option(["SELECTED ", "onClick=\"document.location.href=\'./",Func,"?n=",N, "&selected=",Selected,"\';\""], Selected)| options(Elements,Selected,N,Func)]; options([Element|Elements],Selected,N,Func) -> [option(["onClick=\"document.location.href=\'./",Func,"?n=",N, "&selected=",Element,"\';\""], Element)| options(Elements,Selected,N,Func)]; options([],_Selected,_N,_Func) -> []. add_test_dir1(Input,State) -> State1 = case get_input_data(Input,"dir") of "" -> State; Dir0 -> Dir = case ct_util:is_test_dir(Dir0) of true -> Dir0; false -> filename:join(Dir0,"test") end, case filelib:is_dir(Dir) of true -> Test = ct_run:tests(Dir), State#state{tests=State#state.tests++Test}; false -> State end end, Return = run_frame1(State1), {Return,State1}. remove_test_dir1(Input,State) -> N = list_to_integer(get_input_data(Input,"dir")), State1 = State#state{tests=delete_test(N,State#state.tests)}, Return = run_frame1(State1), {Return,State1}. delete_test(1,[_|T]) -> T; delete_test(N,[H|T]) -> [H|delete_test(N-1,T)]. select_suite1(Input,State) -> N = list_to_integer(get_input_data(Input,"n")), Suite = list_to_atom(get_input_data(Input,"selected")), Tests1 = replace_suite(N,Suite,State#state.tests), State1 = State#state{tests=Tests1}, Return = run_frame1(State1), {Return,State1}. replace_suite(1,Suite,[{Dir,_,_}|T]) -> [Test] = ct_run:tests(Dir,Suite), [Test|T]; replace_suite(N,Suite,[H|T]) -> [H|replace_suite(N-1,Suite,T)]. select_case1(Input,State) -> N = list_to_integer(get_input_data(Input,"n")), Case = list_to_atom(get_input_data(Input,"selected")), Tests1 = replace_case(N,Case,State#state.tests), State1 = State#state{tests=Tests1}, Return = run_frame1(State1), {Return,State1}. replace_case(1,Case,[{Dir,Suite,_}|T]) -> [Test] = ct_run:tests(Dir,Suite,Case), [Test|T]; replace_case(N,Case,[H|T]) -> [H|replace_case(N-1,Case,T)]. submit_button() -> form(["NAME=run_test_form METHOD=post ACTION=\"./run_test\""], [input("TYPE=submit VALUE=\"Run Test\"")]). redirect_to_result_frameset1() -> Head = [""], [header("",Head,body("Please wait..."))]. result_frameset1(State) -> header("Results",result_frameset2(State)). result_frameset2(State) -> ResultLog = case {State#state.current_log_dir,State#state.running} of {undefined,0} -> "./no_result_log_frame"; {undefined,_} -> "./redirect_to_result_log_frame"; {_Dir,0} -> filename:join(["/log_dir","index.html"]); {_Dir,_} -> {_,CurrentLog} = hd(State#state.testruns), CurrentLog end, frameset( "COLS=\"200,*\"", [frame(["NAME=\"result_summary\" SRC=\"./result_summary_frame\""]), frame(["NAME=\"result_log\" SRC=\"",ResultLog,"\""])]). redirect_to_result_log_frame1(State) -> ResultLog = case {State#state.testruns,State#state.running} of {[],0} -> "./no_result_log_frame"; {[],_} -> "./redirect_to_result_log_frame"; {[{_,CurrentLog}|_],_} -> CurrentLog end, Head = [""], [header("",Head,body("Please wait..."))]. result_summary_frame1(State) -> case {State#state.running,State#state.reload_results} of {0,false} -> header("Result Summary",body(result_summary_body(State))); _ -> Head = "\n", header("Result Summary",Head, body("onLoad=\"startReloadInterval()\" BGCOLOR=\"#FFFFFF\"", result_summary_body(State))) end. result_summary_body(State) -> N = State#state.ok + State#state.fail + State#state.skip, [h2("Result Summary"), p([b(vts_integer_to_list(N))," cases executed (of ", b(vts_integer_to_list(State#state.total)),")"]), p([green([b(vts_integer_to_list(State#state.ok))," successful"]),br(), red([b(vts_integer_to_list(State#state.fail))," failed"]),br(), orange([b(vts_integer_to_list(State#state.skip))," skipped"])]), executed_test_list(State)]. executed_test_list(#state{testruns=[]}) -> []; executed_test_list(#state{testruns=TestRuns}) -> [h2("Executed Tests"), table( "", [tr(td(href("TARGET=\"result_log\"",Log,Name))) || {Name,Log} <- lists:reverse(TestRuns)])]. no_result_log_frame1() -> header("Test Results",body(no_result_log_body())). no_result_log_body() -> [h1("ALIGN=center","Test Results"), p(["There are currently no test results available. ", br(),href("TARGET=\"main\"","./run_frame","You can run tests here")])]. report1(tests_start,{TestName,_N},State) -> {ok,LogDir} = ct_logs:get_log_dir(), TestRuns = case State#state.testruns of [{TestName,_}|_]=TR -> TR; TR -> [{TestName,get_test_log(TestName,LogDir)}|TR] end, State#state{testruns=TestRuns}; report1(tests_done,{_Ok,_Fail,_Skip},State) -> timer:send_after(5000, self(),stop_reload_results), State#state{running=State#state.running-1,reload_results=true}; report1(tc_start,{_Suite,_Case},State) -> State; report1(tc_done,{_Suite,init_per_suite,_},State) -> State; report1(tc_done,{_Suite,end_per_suite,_},State) -> State; report1(tc_done,{_Suite,init_per_group,_},State) -> State; report1(tc_done,{_Suite,end_per_group,_},State) -> State; report1(tc_done,{_Suite,ct_init_per_group,_},State) -> State; report1(tc_done,{_Suite,ct_end_per_group,_},State) -> State; report1(tc_done,{_Suite,_Case,ok},State) -> State#state{ok=State#state.ok+1}; report1(tc_done,{_Suite,_Case,{failed,_Reason}},State) -> State#state{fail=State#state.fail+1}; report1(tc_done,{_Suite,_Case,{skipped,_Reason}},State) -> State#state{skip=State#state.skip+1}; report1(tc_user_skip,{_Suite,_Case,_Reason},State) -> State#state{skip=State#state.skip+1}; report1(loginfo,_,State) -> State. get_test_log(TestName,LogDir) -> [Log] = filelib:wildcard( filename:join([TestName++".logs","run*","suite.log.html"])), filename:join(["/log_dir",LogDir,Log]). %get_description(Suite,Case) -> % case erlang:function_exported(Suite,Case,0) of % true -> % case catch apply(Suite,Case,[]) of % {'EXIT',_Reason} -> % "-"; % Info -> % case lists:keysearch(doc,1,Info) of % {value,{doc,Doc}} when is_list(Doc) -> % Doc; % _ -> % "-" % end % end; % false -> % "-" % end. %%%----------------------------------------------------------------- %%% Internal library header(Body) -> header("","",Body). header(Title,Body) -> header(Title,"",Body). header(Title,Head,Body) -> ["Pragma:no-cache\r\n", "Content-type: text/html\r\n\r\n", html_header(Title,Head,Body)]. html_header(Title,Head,Body) -> ["\n", "\n", "", Title, "\n", Head, "\n", Body, ""]. body(Text) -> ["\n",Text,"<\BODY>\n"]. body(Args,Text) -> ["\n", Text,"<\BODY>\n"]. frameset(Args,Frames) -> ["\n", Frames, "\n\n"]. frame(Args) -> ["\n"]. table(Args,Text) -> ["\n", Text, "\n
\n"]. tr(Text) -> ["\n", Text, "\n\n"]. tr(Args,Text) -> ["\n", Text, "\n\n"]. th(Text) -> ["", Text, ""]. th(Args,Text) -> ["\n", Text, "\n\n"]. td(Text) -> ["", Text, ""]. td(Args,Text) -> ["", Text, ""]. b(Text) -> ["",Text,""]. %em(Text) -> % ["",Text,"\n"]. %pre(Text) -> % ["
",Text,"
"]. href(Link,Text) -> ["",Text,""]. href(Args,Link,Text) -> ["",Text,""]. form(Args,Text) -> ["
\n",Text,"\n
\n"]. input(Args) -> ["\n"]. select(Args,Text) -> ["\n"]. option(Text) -> ["\n"]. option(Args,Text) -> ["\n"]. h1(Args,Text) -> ["

",Text,"

\n"]. h2(Text) -> ["

",Text,"

\n"]. h3(Text) -> ["

",Text,"

\n"]. font(Args,Text) -> ["\n",Text,"\n\n"]. p(Text) -> ["

",Text,"

\n"]. p(Args, Text) -> ["

",Text,"

\n"]. ul(Text) -> ["\n"]. li(Text) -> ["
  • ", Text, "
  • \n"]. br() -> "
    \n". red(Text) -> color(red,Text). green(Text) -> color(green,Text). orange(Text) -> color(orange,Text). color(Color,Text) when is_atom(Color) -> font(["COLOR=",atom_to_list(Color)],Text). get_all_input_data(Input,Key)-> List = parse(Input), get_all_input_data(List,Key,[]). get_all_input_data([{Key,Value}|List],Key,Acc) -> get_all_input_data(List,Key,[Value|Acc]); get_all_input_data([{_OtherKey,_Value}|List],Key,Acc) -> get_all_input_data(List,Key,Acc); get_all_input_data([],_Key,Acc) -> Acc. get_input_data(Input,Key)-> case lists:keysearch(Key,1,parse(Input)) of {value,{Key,Value}} -> Value; false -> undefined end. parse(Input) -> httpd:parse_query(Input). vts_integer_to_list(X) when is_atom(X) -> atom_to_list(X); vts_integer_to_list(X) when is_integer(X) -> integer_to_list(X).