From 61faea7ded93df8d444adf7079a7be2cc9e0f176 Mon Sep 17 00:00:00 2001 From: Peter Andersson Date: Tue, 1 Apr 2014 16:50:20 +0200 Subject: Document new ct_telnet logging features OTP-11440 --- lib/common_test/src/ct_telnet.erl | 128 +++++++++++++++---------------- lib/common_test/src/cth_conn_log.erl | 11 ++- lib/common_test/src/unix_telnet.erl | 23 +++--- lib/common_test/test/ct_telnet_SUITE.erl | 26 ++++--- 4 files changed, 97 insertions(+), 91 deletions(-) diff --git a/lib/common_test/src/ct_telnet.erl b/lib/common_test/src/ct_telnet.erl index bc22a99741..596756348b 100644 --- a/lib/common_test/src/ct_telnet.erl +++ b/lib/common_test/src/ct_telnet.erl @@ -46,100 +46,80 @@ %% %% == Logging == %% -%% `ct_telnet' can be configured to uses the `error_logger' for logging telnet -%% traffic. A special purpose error handler is implemented in -%% `ct_conn_log_h'. To use this error handler, add the `cth_conn_log' -%% hook in your test suite, e.g: -%% +%% The default logging behaviour of `ct_telnet' is to print information +%% to the test case HTML log about performed operations and commands +%% and their corresponding results. What won't be printed to the HTML log +%% are text strings sent from the telnet server that are not explicitly +%% received by means of a `ct_telnet' function such as `expect/3'. +%% `ct_telnet' may however be configured to use a special purpose event handler, +%% implemented in `ct_conn_log_h', for logging all telnet traffic. +%% To use this handler, you need to install a Common Test hook named +%% `cth_conn_log'. Example (using the test suite info function): %% %% ``` %% suite() -> -%% [{ct_hooks, [{cth_conn_log, [{conn_mod(),hook_options()}]}]}]. -%%''' +%% [{ct_hooks, [{cth_conn_log, [{conn_mod(),hook_options()}]}]}]. +%% ''' %% %% `conn_mod()' is the name of the common_test module implementing %% the connection protocol, i.e. `ct_telnet'. %% -%% The hook option `log_type' specifies the type of logging: -%% -%%
-%%
`raw'
-%%
The sent and received telnet data is logged to a separate -%% text file as is, without any formatting. A link to the file is -%% added to the test case HTML log.
+%% The `cth_conn_log' hook provides unformatted logging of telnet data to +%% a separate text file. All telnet communication is captured and printed, +%% including arbitrary data sent from the server. The link to this text file +%% can be found on the top of the test case HTML log. %% -%%
`html (default)'
-%%
The sent and received telnet traffic is pretty printed -%% directly in the test case HTML log.
-%% -%%
`silent'
-%%
Telnet traffic is not logged.
-%%
-%% -%% By default, all telnet traffic is logged in one single log -%% file. However, it is possible to have different connections logged -%% in separate files. To do this, use the hook option `hosts' and -%% list the names of the servers/connections that will be used in the -%% suite. Note that the connections must be named for this to work +%% By default, data for all telnet connections is logged in one common +%% file (named `default'), which might get messy e.g. if multiple telnet +%% sessions are running in parallel. It is therefore possible to create a +%% separate log file for each connection. To configure this, use the hook +%% option `hosts' and list the names of the servers/connections that will be +%% used in the suite. Note that the connections must be named for this to work %% (see the `open' function below). %% -%% The `hosts' option has no effect if `log_type' is set to `html' or -%% `silent'. +%% The hook option named `log_type' may be used to change the `cth_conn_log' +%% behaviour. The default value of this option is `raw', which results in the +%% behaviour described above. If the value is set to `html', all telnet +%% communication is printed to the test case HTML log instead. %% -%% The hook options can also be specified in a configuration file with -%% the configuration variable `ct_conn_log': +%% All `cth_conn_log' hook options described above can also be specified in +%% a configuration file with the configuration variable `ct_conn_log'. Example: %% %% ``` -%% {ct_conn_log,[{conn_mod(),hook_options()}]}. -%% ''' -%% -%% For example: -%% -%% ``` -%% {ct_conn_log,[{ct_telnet,[{log_type,raw}, -%% {hosts,[key_or_name()]}]}]} +%% {ct_conn_log, [{ct_telnet,[{log_type,raw}, +%% {hosts,[key_or_name()]}]}]} %% ''' %% %% Note that hook options specified in a configuration file -%% will overwrite any hardcoded hook options in the test suite. +%% will overwrite any hardcoded hook options in the test suite! %% -%% === Logging example 1 === +%% === Logging example === %% -%% The following `ct_hooks' statement will cause raw printing of -%% telnet traffic to separate logs for the connections named -%% `server1' and `server2'. Any other connections will be logged -%% to default telnet log. +%% The following `ct_hooks' statement will cause printing of telnet traffic +%% to separate logs for the connections named `server1' and `server2'. +%% Traffic for any other connections will be logged in the default telnet log. %% %% ``` %% suite() -> -%% [{ct_hooks, [{cth_conn_log, [{ct_telnet,[{log_type,raw}}, -%% {hosts,[server1,server2]}]} -%% ]}]}]. +%% [{ct_hooks, +%% [{cth_conn_log, [{ct_telnet,[{hosts,[server1,server2]}]}]}]}]. %%''' %% -%% === Logging example 2 === -%% -%% The following configuration file will cause raw logging of all -%% telnet traffic into one single text file. +%% As previously explained, the above specification could also be provided +%% with the following entry in a configuration file: %% %% ``` -%% {ct_conn_log,[{ct_telnet,[{log_type,raw}]}]}. +%% {ct_conn_log, [{ct_telnet,[{hosts,[server1,server2]}]}]}. %% ''' %% -%% The `ct_hooks' statement must look like this: +%% in which case the `ct_hooks' statement in the test suite may simply look +%% like this: %% %% ``` %% suite() -> -%% [{ct_hooks, [{cth_conn_log, []}]}]. +%% [{ct_hooks, [{cth_conn_log, []}]}]. %% ''' %% -%% The same `ct_hooks' statement without the configuration file would -%% cause HTML logging of all telnet connections into the test case -%% HTML log. -%% -%% Note that if the `cth_conn_log' hook is not added, telnet -%% traffic is still logged in the test case HTML log file (on the legacy -%% `ct_telnet' format). %% @end %% @type connection_type() = telnet | ts1 | ts2 @@ -205,6 +185,7 @@ open(Name) -> %%% Name = target_name() %%% ConnType = ct_telnet:connection_type() %%% Handle = ct_telnet:handle() +%%% Reason = term() %%% %%% @doc Open a telnet connection to the specified target host. open(Name,ConnType) -> @@ -234,6 +215,7 @@ open(KeyOrName,ConnType,TargetMod) -> %%% TargetMod = atom() %%% Extra = term() %%% Handle = handle() +%%% Reason = term() %%% %%% @doc Open a telnet connection to the specified target host. %%% @@ -295,7 +277,8 @@ open(KeyOrName,ConnType,TargetMod,Extra) -> %%%----------------------------------------------------------------- %%% @spec close(Connection) -> ok | {error,Reason} -%%% Connection = ct_telnet:connection() +%%% Connection = ct_telnet:connection() +%%% Reason = term() %%% %%% @doc Close the telnet connection and stop the process managing it. %%% @@ -330,6 +313,7 @@ cmd(Connection,Cmd) -> %%% Cmd = string() %%% Timeout = integer() %%% Data = [string()] +%%% Reason = term() %%% @doc Send a command via telnet and wait for prompt. cmd(Connection,Cmd,Timeout) -> case get_handle(Connection) of @@ -350,6 +334,7 @@ cmdf(Connection,CmdFormat,Args) -> %%% Args = list() %%% Timeout = integer() %%% Data = [string()] +%%% Reason = term() %%% @doc Send a telnet command and wait for prompt %%% (uses a format string and list of arguments to build the command). cmdf(Connection,CmdFormat,Args,Timeout) when is_list(Args) -> @@ -360,6 +345,7 @@ cmdf(Connection,CmdFormat,Args,Timeout) when is_list(Args) -> %%% @spec get_data(Connection) -> {ok,Data} | {error,Reason} %%% Connection = ct_telnet:connection() %%% Data = [string()] +%%% Reason = term() %%% @doc Get all data which has been received by the telnet client %%% since last command was sent. get_data(Connection) -> @@ -374,6 +360,7 @@ get_data(Connection) -> %%% @spec send(Connection,Cmd) -> ok | {error,Reason} %%% Connection = ct_telnet:connection() %%% Cmd = string() +%%% Reason = term() %%% @doc Send a telnet command and return immediately. %%% %%%

The resulting output from the command can be read with @@ -391,6 +378,7 @@ send(Connection,Cmd) -> %%% Connection = ct_telnet:connection() %%% CmdFormat = string() %%% Args = list() +%%% Reason = term() %%% @doc Send a telnet command and return immediately (uses a format %%% string and a list of arguments to build the command). sendf(Connection,CmdFormat,Args) when is_list(Args) -> @@ -765,8 +753,8 @@ check_if_prompt_was_reached(Data,_) when is_list(Data) -> check_if_prompt_was_reached(_,_) -> false. -%%% @hidden -%% Functions for logging ct_telnet reports and telnet data +%%%----------------------------------------------------------------- +%%% Functions for logging ct_telnet reports and telnet data heading(Action,undefined) -> io_lib:format("~w ~w",[?MODULE,Action]); @@ -776,6 +764,8 @@ heading(Action,Name) -> force_log(State,Action,String,Args) -> log(State,Action,String,Args,true). +%%%----------------------------------------------------------------- +%%% @hidden log(State,Action,String,Args) when is_record(State, state) -> log(State,Action,String,Args,false); log(Name,Action,String,Args) when is_atom(Name) -> @@ -783,6 +773,8 @@ log(Name,Action,String,Args) when is_atom(Name) -> log(TelnPid,Action,String,Args) when is_pid(TelnPid) -> log(#state{teln_pid=TelnPid},Action,String,Args,false). +%%%----------------------------------------------------------------- +%%% @hidden log(undefined,String,Args) -> log(#state{},undefined,String,Args,false); log(Name,String,Args) when is_atom(Name) -> @@ -790,6 +782,8 @@ log(Name,String,Args) when is_atom(Name) -> log(TelnPid,String,Args) when is_pid(TelnPid) -> log(#state{teln_pid=TelnPid},undefined,String,Args). +%%%----------------------------------------------------------------- +%%% @hidden log(#state{name=Name,teln_pid=TelnPid,host=Host,port=Port}, Action,String,Args,ForcePrint) -> Name1 = if Name == undefined -> get({ct_telnet_pid2name,TelnPid}); @@ -839,6 +833,8 @@ log(#state{name=Name,teln_pid=TelnPid,host=Host,port=Port}, end end. +%%%----------------------------------------------------------------- +%%% @hidden start_gen_log(Heading) -> %% check if output is suppressed case ct_util:is_silenced(telnet) of @@ -846,6 +842,8 @@ start_gen_log(Heading) -> false -> ct_gen_conn:start_log(Heading) end. +%%%----------------------------------------------------------------- +%%% @hidden end_gen_log() -> %% check if output is suppressed case ct_util:is_silenced(telnet) of diff --git a/lib/common_test/src/cth_conn_log.erl b/lib/common_test/src/cth_conn_log.erl index 0e6c877c5d..1e60f2751e 100644 --- a/lib/common_test/src/cth_conn_log.erl +++ b/lib/common_test/src/cth_conn_log.erl @@ -91,12 +91,15 @@ merge_log_info([{Mod,ConfOpts}|ConfList],HookList) -> {value,{_,HookOpts},HL1} -> {ConfOpts ++ HookOpts, HL1} % ConfOpts overwrites HookOpts! end, - [{Mod,get_log_opts(Opts)} | merge_log_info(ConfList,HookList1)]; + [{Mod,get_log_opts(Mod,Opts)} | merge_log_info(ConfList,HookList1)]; merge_log_info([],HookList) -> - [{Mod,get_log_opts(Opts)} || {Mod,Opts} <- HookList]. + [{Mod,get_log_opts(Mod,Opts)} || {Mod,Opts} <- HookList]. -get_log_opts(Opts) -> - LogType = proplists:get_value(log_type,Opts,html), +get_log_opts(Mod,Opts) -> + DefaultLogType = if Mod == ct_telnet -> raw; + true -> html + end, + LogType = proplists:get_value(log_type,Opts,DefaultLogType), Hosts = proplists:get_value(hosts,Opts,[]), {LogType,Hosts}. diff --git a/lib/common_test/src/unix_telnet.erl b/lib/common_test/src/unix_telnet.erl index b05386a5ab..10666b979d 100644 --- a/lib/common_test/src/unix_telnet.erl +++ b/lib/common_test/src/unix_telnet.erl @@ -17,8 +17,8 @@ %% %CopyrightEnd% %% -%%% @doc Callback module for ct_telnet for talking telnet -%%% to a unix host. +%%% @doc Callback module for ct_telnet, for connecting to a telnet +%%% server on a unix host. %%% %%%

It requires the following entry in the config file:

%%% 
@@ -28,15 +28,15 @@
 %%%        {password,Password},
 %%%        {keep_alive,Bool}]}.            % optional
%%% -%%%

To talk telnet to the host specified by +%%%

To communicate via telnet to the host specified by %%% HostNameOrIpAddress, use the interface functions in -%%% ct, e.g. open(Name), cmd(Name,Cmd), ....

+%%% ct_telnet, e.g. open(Name), cmd(Name,Cmd), ....

%%% %%%

Name is the name you allocated to the unix host in %%% your require statement. E.g.

-%%% 
   suite() -> [{require,Name,{unix,[telnet,username,password]}}].
+%%% 
   suite() -> [{require,Name,{unix,[telnet]}}].
%%%

or

-%%% 
   ct:require(Name,{unix,[telnet,username,password]}).
+%%% 
   ct:require(Name,{unix,[telnet]}).
%%% %%%

The "keep alive" activity (i.e. that Common Test sends NOP to the server %%% every 10 seconds if the connection is idle) may be enabled or disabled for one @@ -62,20 +62,18 @@ -define(prx,"login: |Password: |\\\$ |> "). %%%----------------------------------------------------------------- -%%% @hidden %%% @spec get_prompt_regexp() -> PromptRegexp %%% PromptRegexp = ct_telnet:prompt_regexp() %%% %%% @doc Callback for ct_telnet.erl. %%% -%%%

Return the prompt regexp for telnet connections to the -%%% interwatch instrument.

+%%%

Return a suitable regexp string that will match common +%%% prompts for users on unix hosts.

get_prompt_regexp() -> ?prx. %%%----------------------------------------------------------------- -%%% @hidden %%% @spec connect(ConnName,Ip,Port,Timeout,KeepAlive,Extra) -> %%% {ok,Handle} | {error,Reason} %%% ConnName = ct:target_name() @@ -83,14 +81,15 @@ get_prompt_regexp() -> %%% Port = integer() %%% Timeout = integer() %%% KeepAlive = bool() -%%% Extra = {Username,Password} +%%% Extra = ct:target_name() | {Username,Password} %%% Username = string() %%% Password = string() %%% Handle = ct_telnet:handle() +%%% Reason = term() %%% %%% @doc Callback for ct_telnet.erl. %%% -%%%

Setup telnet connection to a UNIX host.

+%%%

Setup telnet connection to a unix host.

connect(ConnName,Ip,Port,Timeout,KeepAlive,Extra) -> case Extra of {Username,Password} -> diff --git a/lib/common_test/test/ct_telnet_SUITE.erl b/lib/common_test/test/ct_telnet_SUITE.erl index f5cff76fd1..84e69c2b54 100644 --- a/lib/common_test/test/ct_telnet_SUITE.erl +++ b/lib/common_test/test/ct_telnet_SUITE.erl @@ -180,14 +180,20 @@ telnet_config(unix_telnet, legacy) -> {ct_conn_log,[]}]; %% LogType same as GroupName telnet_config(unix_telnet, LogType) -> + LogTypeTerm = if LogType == raw -> []; + true -> [{log_type,LogType}] + end, [{unix, ct:get_config(unix)}, {ct_conn_log, - [{ct_telnet,[{log_type,LogType}, - {hosts,[telnet_server_conn1, - telnet_server_conn2, - telnet_server_conn3, - telnet_server_conn4]}]}]}]; + [{ct_telnet, LogTypeTerm ++ + [{hosts,[telnet_server_conn1, + telnet_server_conn2, + telnet_server_conn3, + telnet_server_conn4]}]}]}]; telnet_config(_, LogType) -> + LogTypeTerm = if LogType == raw -> []; + true -> [{log_type,LogType}] + end, [{unix,[{telnet,"localhost"}, {port, ?erl_telnet_server_port}, {username,?erl_telnet_server_user}, @@ -202,11 +208,11 @@ telnet_config(_, LogType) -> [{ct_conn_log,[]}]; true -> [{ct_conn_log, - [{ct_telnet,[{log_type,LogType}, - {hosts,[telnet_server_conn1, - telnet_server_conn2, - telnet_server_conn3, - telnet_server_conn4]}]}]}] + [{ct_telnet, LogTypeTerm ++ + [{hosts,[telnet_server_conn1, + telnet_server_conn2, + telnet_server_conn3, + telnet_server_conn4]}]}]}] end]. %%%----------------------------------------------------------------- -- cgit v1.2.3