%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2006-2010. 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%
%%
%%% @doc Common Test Framework functions handling test specifications.
%%%
%%% <p>This module exports functions that are used within CT to
%%% scan and parse test specifikations.</p>
-module(ct_testspec).
-export([prepare_tests/1, prepare_tests/2,
collect_tests_from_list/2, collect_tests_from_list/3,
collect_tests_from_file/2, collect_tests_from_file/3]).
-include("ct_util.hrl").
%%%------------------------------------------------------------------
%%% NOTE:
%%% Multiple testspecs may be used as input with the result that
%%% the data is merged. It's in this case up to the user to ensure
%%% there are no clashes in any "global" variables, such as logdir.
%%%-------------------------------------------------------------------
%%%-------------------------------------------------------------------
%%% prepare_tests/2 compiles the testspec data into a list of tests
%%% to be run and a list of tests to be skipped, either for one
%%% particular node or for all nodes.
%%%-------------------------------------------------------------------
%%%-------------------------------------------------------------------
%%% Version 1 - extract and return all tests and skips for Node
%%% (incl all_nodes)
%%%-------------------------------------------------------------------
prepare_tests(TestSpec,Node) when is_record(TestSpec,testspec), is_atom(Node) ->
case lists:keysearch(Node,1,prepare_tests(TestSpec)) of
{value,{Node,Run,Skip}} ->
{Run,Skip};
false ->
{[],[]}
end.
%%%-------------------------------------------------------------------
%%% Version 2 - create and return a list of {Node,Run,Skip} tuples,
%%% one for each node specified in the test specification.
%%% The tuples in the Run list will have the form {Dir,Suites,Cases}
%%% and the tuples in the Skip list will have the form
%%% {Dir,Suites,Comment} or {Dir,Suite,Cases,Comment}.
%%%-------------------------------------------------------------------
prepare_tests(TestSpec) when is_record(TestSpec,testspec) ->
Tests = TestSpec#testspec.tests,
%% Sort Tests into "flat" Run and Skip lists (not sorted per node).
{Run,Skip} = get_run_and_skip(Tests,[],[]),
%% Create initial list of {Node,{Run,Skip}} tuples
NodeList = lists:map(fun(N) -> {N,{[],[]}} end, list_nodes(TestSpec)),
%% Get all Run tests sorted per node basis.
NodeList1 = run_per_node(Run,NodeList),
%% Get all Skip entries sorted per node basis.
NodeList2 = skip_per_node(Skip,NodeList1),
%% Change representation.
Result=
lists:map(fun({Node,{Run1,Skip1}}) ->
Run2 = lists:map(fun({D,{Ss,Cs}}) ->
{D,Ss,Cs}
end, Run1),
Skip2 = lists:map(fun({D,{Ss,Cmt}}) ->
{D,Ss,Cmt};
({D,{S,Cs,Cmt}}) ->
{D,S,Cs,Cmt}
end, Skip1),
{Node,Run2,Skip2}
end, NodeList2),
Result.
%% run_per_node/2 takes the Run list as input and returns a list
%% of {Node,RunPerNode,[]} tuples where the tests have been sorted
%% on a per node basis.
run_per_node([{{Node,Dir},Test}|Ts],Result) ->
{value,{Node,{Run,Skip}}} = lists:keysearch(Node,1,Result),
Run1 = merge_tests(Dir,Test,Run),
run_per_node(Ts,insert_in_order({Node,{Run1,Skip}},Result));
run_per_node([],Result) ->
Result.
merge_tests(Dir,Test={all,_},TestDirs) ->
%% overwrite all previous entries for Dir
TestDirs1 = lists:filter(fun({D,_}) when D==Dir ->
false;
(_) ->
true
end,TestDirs),
insert_in_order({Dir,Test},TestDirs1);
merge_tests(Dir,Test={Suite,all},TestDirs) ->
TestDirs1 = lists:filter(fun({D,{S,_}}) when D==Dir,S==Suite ->
false;
(_) ->
true
end,TestDirs),
TestDirs1++[{Dir,Test}];
merge_tests(Dir,Test,TestDirs) ->
merge_suites(Dir,Test,TestDirs).
merge_suites(Dir,{Suite,Cases},[{Dir,{Suite,Cases0}}|Dirs]) ->
Cases1 = insert_in_order(Cases,Cases0),
[{Dir,{Suite,Cases1}}|Dirs];
merge_suites(Dir,Test,[Other|Dirs]) ->
[Other|merge_suites(Dir,Test,Dirs)];
merge_suites(Dir,Test,[]) ->
[{Dir,Test}].
%% skip_per_node/2 takes the Skip list as input and returns a list
%% of {Node,RunPerNode,SkipPerNode} tuples where the skips have been
%% sorted on a per node basis.
skip_per_node([{{Node,Dir},Test}|Ts],Result) ->
{value,{Node,{Run,Skip}}} = lists:keysearch(Node,1,Result),
Skip1 = [{Dir,Test}|Skip],
skip_per_node(Ts,insert_in_order({Node,{Run,Skip1}},Result));
skip_per_node([],Result) ->
Result.
%% get_run_and_skip/3 takes a list of test terms as input and sorts
%% them into a list of Run tests and a list of Skip entries. The
%% elements all have the form
%%
%% {{Node,Dir},TestData}
%%
%% TestData has the form:
%%
%% Run entry: {Suite,Cases}
%%
%% Skip entry: {Suites,Comment} or {Suite,Cases,Comment}
%%
get_run_and_skip([{{Node,Dir},Suites}|Tests],Run,Skip) ->
TestDir = ct_util:get_testdir(Dir,catch element(1,hd(Suites))),
case lists:keysearch(all,1,Suites) of
{value,_} -> % all Suites in Dir
Skipped = get_skipped_suites(Node,TestDir,Suites),
%% note: this adds an 'all' test even if only skip is specified,
%% probably a good thing cause it gets logged as skipped then
get_run_and_skip(Tests,
[[{{Node,TestDir},{all,all}}]|Run],
[Skipped|Skip]);
false ->
{R,S} = prepare_suites(Node,TestDir,Suites,[],[]),
get_run_and_skip(Tests,[R|Run],[S|Skip])
end;
get_run_and_skip([],Run,Skip) ->
{lists:flatten(lists:reverse(Run)),
lists:flatten(lists:reverse(Skip))}.
prepare_suites(Node,Dir,[{Suite,Cases}|Suites],Run,Skip) ->
case lists:member(all,Cases) of
true -> % all Cases in Suite
Skipped = get_skipped_cases(Node,Dir,Suite,Cases),
%% note: this adds an 'all' test even if only skip is specified
prepare_suites(Node,Dir,Suites,
[[{{Node,Dir},{Suite,all}}]|Run],
[Skipped|Skip]);
false ->
{RL,SL} = prepare_cases(Node,Dir,Suite,Cases),
prepare_suites(Node,Dir,Suites,[RL|Run],[SL|Skip])
end;
prepare_suites(_Node,_Dir,[],Run,Skip) ->
{lists:flatten(lists:reverse(Run)),
lists:flatten(lists:reverse(Skip))}.
prepare_cases(Node,Dir,Suite,Cases) ->
case get_skipped_cases(Node,Dir,Suite,Cases) of
SkipAll=[{{Node,Dir},{Suite,_Cmt}}] -> % all cases to be skipped
%% note: this adds an 'all' test even if only skip is specified
{[{{Node,Dir},{Suite,all}}],SkipAll};
Skipped ->
%% note: this adds a test even if only skip is specified
PrepC = lists:foldr(fun({C,{skip,_Cmt}},Acc) ->
case lists:member(C,Cases) of
true ->
Acc;
false ->
[C|Acc]
end;
(C,Acc) -> [C|Acc]
end, [], Cases),
{{{Node,Dir},{Suite,PrepC}},Skipped}
end.
get_skipped_suites(Node,Dir,Suites) ->
lists:flatten(get_skipped_suites1(Node,Dir,Suites)).
get_skipped_suites1(Node,Dir,[{Suite,Cases}|Suites]) ->
SkippedCases = get_skipped_cases(Node,Dir,Suite,Cases),
[SkippedCases|get_skipped_suites1(Node,Dir,Suites)];
get_skipped_suites1(_,_,[]) ->
[].
get_skipped_cases(Node,Dir,Suite,Cases) ->
case lists:keysearch(all,1,Cases) of
{value,{all,{skip,Cmt}}} ->
[{{Node,Dir},{Suite,Cmt}}];
false ->
get_skipped_cases1(Node,Dir,Suite,Cases)
end.
get_skipped_cases1(Node,Dir,Suite,[{Case,{skip,Cmt}}|Cs]) ->
[{{Node,Dir},{Suite,Case,Cmt}}|get_skipped_cases1(Node,Dir,Suite,Cs)];
get_skipped_cases1(Node,Dir,Suite,[_Case|Cs]) ->
get_skipped_cases1(Node,Dir,Suite,Cs);
get_skipped_cases1(_,_,_,[]) ->
[].
%%% collect_tests_from_file reads a testspec file and returns a record
%%% containing the data found.
collect_tests_from_file(Specs, Relaxed) ->
collect_tests_from_file(Specs,[node()],Relaxed).
collect_tests_from_file(Specs,Nodes,Relaxed) when is_list(Nodes) ->
NodeRefs = lists:map(fun(N) -> {undefined,N} end, Nodes),
catch collect_tests_from_file1(Specs,#testspec{nodes=NodeRefs},Relaxed).
collect_tests_from_file1([Spec|Specs],TestSpec,Relaxed) ->
SpecDir = filename:dirname(filename:absname(Spec)),
case file:consult(Spec) of
{ok,Terms} ->
TestSpec1 = collect_tests(Terms,TestSpec#testspec{spec_dir=SpecDir},
Relaxed),
collect_tests_from_file1(Specs,TestSpec1,Relaxed);
{error,Reason} ->
throw({error,{Spec,Reason}})
end;
collect_tests_from_file1([],TS=#testspec{config=Cfgs,event_handler=EvHs,
include=Incl,tests=Tests},_) ->
TS#testspec{config=lists:reverse(Cfgs),
event_handler=lists:reverse(EvHs),
include=lists:reverse(Incl),
tests=lists:flatten(Tests)}.
collect_tests_from_list(Terms,Relaxed) ->
collect_tests_from_list(Terms,[node()],Relaxed).
collect_tests_from_list(Terms,Nodes,Relaxed) when is_list(Nodes) ->
{ok,Cwd} = file:get_cwd(),
NodeRefs = lists:map(fun(N) -> {undefined,N} end, Nodes),
case catch collect_tests(Terms,#testspec{nodes=NodeRefs,
spec_dir=Cwd},
Relaxed) of
E = {error,_} ->
E;
TS ->
#testspec{config=Cfgs,event_handler=EvHs,include=Incl,tests=Tests} = TS,
TS#testspec{config=lists:reverse(Cfgs),
event_handler=lists:reverse(EvHs),
include=lists:reverse(Incl),
tests=lists:flatten(Tests)}
end.
collect_tests(Terms,TestSpec,Relaxed) ->
put(relaxed,Relaxed),
TestSpec1 = get_global(Terms,TestSpec),
TestSpec2 = get_all_nodes(Terms,TestSpec1),
{Terms2, TestSpec3} = filter_init_terms(Terms, [], TestSpec2),
add_tests(Terms2,TestSpec3).
get_global([{alias,Ref,Dir}|Ts],Spec=#testspec{alias=Refs}) ->
get_global(Ts,Spec#testspec{alias=[{Ref,get_absdir(Dir,Spec)}|Refs]});
get_global([{node,Ref,Node}|Ts],Spec=#testspec{nodes=Refs}) ->
get_global(Ts,Spec#testspec{nodes=[{Ref,Node}|lists:keydelete(Node,2,Refs)]});
get_global([_|Ts],Spec) -> get_global(Ts,Spec);
get_global([],Spec) -> Spec.
get_absfile(Callback, FullName,#testspec{spec_dir=SpecDir}) ->
% we need to temporary switch to new cwd here, because
% otherwise config files cannot be found
{ok, OldWd} = file:get_cwd(),
ok = file:set_cwd(SpecDir),
R = Callback:check_parameter(FullName),
ok = file:set_cwd(OldWd),
case R of
{ok, {file, FullName}}->
File = filename:basename(FullName),
Dir = get_absname(filename:dirname(FullName),SpecDir),
filename:join(Dir,File);
{ok, {config, FullName}}->
FullName;
{error, {nofile, FullName}}->
FullName;
{error, {wrong_config, FullName}}->
FullName
end.
get_absfile(FullName,#testspec{spec_dir=SpecDir}) ->
File = filename:basename(FullName),
Dir = get_absname(filename:dirname(FullName),SpecDir),
filename:join(Dir,File).
get_absdir(Dir,#testspec{spec_dir=SpecDir}) ->
get_absname(Dir,SpecDir).
get_absname(TestDir,SpecDir) ->
AbsName = filename:absname(TestDir,SpecDir),
TestDirName = filename:basename(AbsName),
Path = filename:dirname(AbsName),
TopDir = filename:basename(Path),
Path1 =
case TopDir of
"." ->
[_|Rev] = lists:reverse(filename:split(Path)),
filename:join(lists:reverse(Rev));
".." ->
[_,_|Rev] = lists:reverse(filename:split(Path)),
filename:join(lists:reverse(Rev));
_ ->
Path
end,
filename:join(Path1,TestDirName).
%% go through all tests and register all nodes found
get_all_nodes([{suites,Nodes,_,_}|Ts],Spec) when is_list(Nodes) ->
get_all_nodes(Ts,save_nodes(Nodes,Spec));
get_all_nodes([{suites,Node,_,_}|Ts],Spec) ->
get_all_nodes(Ts,save_nodes([Node],Spec));
get_all_nodes([{cases,Nodes,_,_,_}|Ts],Spec) when is_list(Nodes) ->
get_all_nodes(Ts,save_nodes(Nodes,Spec));
get_all_nodes([{cases,Node,_,_,_}|Ts],Spec) ->
get_all_nodes(Ts,save_nodes([Node],Spec));
get_all_nodes([{skip_suites,Nodes,_,_,_}|Ts],Spec) when is_list(Nodes) ->
get_all_nodes(Ts,save_nodes(Nodes,Spec));
get_all_nodes([{skip_suites,Node,_,_,_}|Ts],Spec) ->
get_all_nodes(Ts,save_nodes([Node],Spec));
get_all_nodes([{skip_cases,Nodes,_,_,_,_}|Ts],Spec) when is_list(Nodes) ->
get_all_nodes(Ts,save_nodes(Nodes,Spec));
get_all_nodes([{skip_cases,Node,_,_,_,_}|Ts],Spec) ->
get_all_nodes(Ts,save_nodes([Node],Spec));
get_all_nodes([_|Ts],Spec) ->
get_all_nodes(Ts,Spec);
get_all_nodes([],Spec) ->
Spec.
filter_init_terms([{init, InitOptions}|Ts], NewTerms, Spec)->
filter_init_terms([{init, list_nodes(Spec), InitOptions}|Ts], NewTerms, Spec);
filter_init_terms([{init, NodeRef, InitOptions}|Ts], NewTerms, Spec)
when is_atom(NodeRef)->
filter_init_terms([{init, [NodeRef], InitOptions}|Ts], NewTerms, Spec);
filter_init_terms([{init, NodeRefs, InitOption}|Ts], NewTerms, Spec) when is_tuple(InitOption) ->
filter_init_terms([{init, NodeRefs, [InitOption]}|Ts], NewTerms, Spec);
filter_init_terms([{init, [NodeRef|NodeRefs], InitOptions}|Ts], NewTerms, Spec=#testspec{init=InitData})->
NodeStartOptions = case lists:keyfind(node_start, 1, InitOptions) of
{node_start, NSOptions}->
case lists:keyfind(callback_module, 1, NSOptions) of
{callback_module, _Callback}->
NSOptions;
false->
[{callback_module, ct_slave}|NSOptions]
end;
false->
[]
end,
EvalTerms = case lists:keyfind(eval, 1, InitOptions) of
{eval, MFA} when is_tuple(MFA)->
[MFA];
{eval, MFAs} when is_list(MFAs)->
MFAs;
false->
[]
end,
Node = ref2node(NodeRef,Spec#testspec.nodes),
InitData2 = add_option({node_start, NodeStartOptions}, Node, InitData, true),
InitData3 = add_option({eval, EvalTerms}, Node, InitData2, false),
filter_init_terms([{init, NodeRefs, InitOptions}|Ts], NewTerms, Spec#testspec{init=InitData3});
filter_init_terms([{init, [], _}|Ts], NewTerms, Spec)->
filter_init_terms(Ts, NewTerms, Spec);
filter_init_terms([Term|Ts], NewTerms, Spec)->
filter_init_terms(Ts, [Term|NewTerms], Spec);
filter_init_terms([], NewTerms, Spec)->
{lists:reverse(NewTerms), Spec}.
add_option([], _, List, _)->
List;
add_option({Key, Value}, Node, List, WarnIfExists) when is_list(Value)->
OldOptions = case lists:keyfind(Node, 1, List) of
{Node, Options}->
Options;
false->
[]
end,
NewOption = case lists:keyfind(Key, 1, OldOptions) of
{Key, OldOption} when WarnIfExists, OldOption/=[]->
io:format("There is an option ~w=~w already defined for node ~p, skipping new ~w~n",
[Key, OldOption, Node, Value]),
OldOption;
{Key, OldOption}->
OldOption ++ Value;
false->
Value
end,
lists:keystore(Node, 1, List,
{Node, lists:keystore(Key, 1, OldOptions, {Key, NewOption})});
add_option({Key, Value}, Node, List, WarnIfExists)->
add_option({Key, [Value]}, Node, List, WarnIfExists).
save_nodes(Nodes,Spec=#testspec{nodes=NodeRefs}) ->
NodeRefs1 =
lists:foldr(fun(all_nodes,NR) ->
NR;
(Node,NR) ->
case lists:keymember(Node,1,NR) of
true ->
NR;
false ->
case lists:keymember(Node,2,NR) of
true ->
NR;
false ->
[{undefined,Node}|NR]
end
end
end,NodeRefs,Nodes),
Spec#testspec{nodes=NodeRefs1}.
list_nodes(#testspec{nodes=NodeRefs}) ->
lists:map(fun({_Ref,Node}) -> Node end, NodeRefs).
%% Associate a "global" logdir with all nodes
%% except those with specific logdir, e.g:
%% ["/tmp/logdir",{ct1@finwe,"/tmp/logdir2"}]
%% means all nodes should write to /tmp/logdir
%% except ct1@finwe that should use /tmp/logdir2.
%% --- logdir ---
add_tests([{logdir,all_nodes,Dir}|Ts],Spec) ->
Dirs = Spec#testspec.logdir,
Tests = [{logdir,N,get_absdir(Dir,Spec)} ||
N <- list_nodes(Spec),
lists:keymember(ref2node(N,Spec#testspec.nodes),
1,Dirs) == false],
add_tests(Tests++Ts,Spec);
add_tests([{logdir,Nodes,Dir}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,logdir,[Dir],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{logdir,Node,Dir}|Ts],Spec) ->
Dirs = Spec#testspec.logdir,
Dirs1 = [{ref2node(Node,Spec#testspec.nodes),get_absdir(Dir,Spec)} |
lists:keydelete(ref2node(Node,Spec#testspec.nodes),1,Dirs)],
add_tests(Ts,Spec#testspec{logdir=Dirs1});
add_tests([{logdir,Dir}|Ts],Spec) ->
add_tests([{logdir,all_nodes,Dir}|Ts],Spec);
%% --- cover ---
add_tests([{cover,all_nodes,File}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {cover,N,File} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{cover,Nodes,File}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,cover,[File],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{cover,Node,File}|Ts],Spec) ->
CoverFs = Spec#testspec.cover,
CoverFs1 = [{ref2node(Node,Spec#testspec.nodes),get_absfile(File,Spec)} |
lists:keydelete(ref2node(Node,Spec#testspec.nodes),1,CoverFs)],
add_tests(Ts,Spec#testspec{cover=CoverFs1});
add_tests([{cover,File}|Ts],Spec) ->
add_tests([{cover,all_nodes,File}|Ts],Spec);
%% --- multiply_timetraps ---
add_tests([{multiply_timetraps,all_nodes,MT}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {multiply_timetraps,N,MT} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{multiply_timetraps,Nodes,MT}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,multiply_timetraps,[MT],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{multiply_timetraps,Node,MT}|Ts],Spec) ->
MTs = Spec#testspec.multiply_timetraps,
MTs1 = [{ref2node(Node,Spec#testspec.nodes),MT} |
lists:keydelete(ref2node(Node,Spec#testspec.nodes),1,MTs)],
add_tests(Ts,Spec#testspec{multiply_timetraps=MTs1});
add_tests([{multiply_timetraps,MT}|Ts],Spec) ->
add_tests([{multiply_timetraps,all_nodes,MT}|Ts],Spec);
%% --- scale_timetraps ---
add_tests([{scale_timetraps,all_nodes,ST}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {scale_timetraps,N,ST} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{scale_timetraps,Nodes,ST}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,scale_timetraps,[ST],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{scale_timetraps,Node,ST}|Ts],Spec) ->
STs = Spec#testspec.scale_timetraps,
STs1 = [{ref2node(Node,Spec#testspec.nodes),ST} |
lists:keydelete(ref2node(Node,Spec#testspec.nodes),1,STs)],
add_tests(Ts,Spec#testspec{scale_timetraps=STs1});
add_tests([{scale_timetraps,ST}|Ts],Spec) ->
add_tests([{scale_timetraps,all_nodes,ST}|Ts],Spec);
%% --- config ---
add_tests([{config,all_nodes,Files}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {config,N,Files} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{config,Nodes,Files}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,config,[Files],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{config,Node,[F|Fs]}|Ts],Spec) when is_list(F) ->
Cfgs = Spec#testspec.config,
Node1 = ref2node(Node,Spec#testspec.nodes),
add_tests([{config,Node,Fs}|Ts],
Spec#testspec{config=[{Node1,get_absfile(F,Spec)}|Cfgs]});
add_tests([{config,_Node,[]}|Ts],Spec) ->
add_tests(Ts,Spec);
add_tests([{config,Node,F}|Ts],Spec) ->
add_tests([{config,Node,[F]}|Ts],Spec);
add_tests([{config,Files}|Ts],Spec) ->
add_tests([{config,all_nodes,Files}|Ts],Spec);
%% --- userconfig ---
add_tests([{userconfig,all_nodes,CBF}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {userconfig,N,CBF} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{userconfig,Nodes,CBF}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,userconfig,[CBF],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{userconfig,Node,[{Callback, Config}|CBF]}|Ts],Spec) ->
Cfgs = Spec#testspec.userconfig,
Node1 = ref2node(Node,Spec#testspec.nodes),
add_tests([{userconfig,Node,CBF}|Ts],
Spec#testspec{userconfig=[{Node1,{Callback,
get_absfile(Callback, Config ,Spec)}}|Cfgs]});
add_tests([{userconfig,_Node,[]}|Ts],Spec) ->
add_tests(Ts,Spec);
add_tests([{userconfig,Node,CBF}|Ts],Spec) ->
add_tests([{userconfig,Node,[CBF]}|Ts],Spec);
add_tests([{userconfig,CBF}|Ts],Spec) ->
add_tests([{userconfig,all_nodes,CBF}|Ts],Spec);
%% --- event_handler ---
add_tests([{event_handler,all_nodes,Hs}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {event_handler,N,Hs,[]} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{event_handler,all_nodes,Hs,Args}|Ts],Spec) when is_list(Args) ->
Tests = lists:map(fun(N) -> {event_handler,N,Hs,Args} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{event_handler,Hs}|Ts],Spec) ->
add_tests([{event_handler,all_nodes,Hs,[]}|Ts],Spec);
add_tests([{event_handler,HsOrNodes,HsOrArgs}|Ts],Spec) ->
case is_noderef(HsOrNodes,Spec#testspec.nodes) of
true -> % HsOrNodes == Nodes, HsOrArgs == Hs
case {HsOrNodes,HsOrArgs} of
{Nodes,Hs} when is_list(Nodes) ->
Ts1 = separate(Nodes,event_handler,[Hs,[]],Ts,
Spec#testspec.nodes),
add_tests(Ts1,Spec);
{_Node,[]} ->
add_tests(Ts,Spec);
{Node,HOrHs} ->
EvHs = Spec#testspec.event_handler,
Node1 = ref2node(Node,Spec#testspec.nodes),
case HOrHs of
[H|Hs] when is_atom(H) ->
add_tests([{event_handler,Node,Hs}|Ts],
Spec#testspec{event_handler=[{Node1,H,[]}|EvHs]});
H when is_atom(H) ->
add_tests(Ts,Spec#testspec{event_handler=[{Node1,H,[]}|EvHs]})
end
end;
false -> % HsOrNodes == Hs, HsOrArgs == Args
add_tests([{event_handler,all_nodes,HsOrNodes,HsOrArgs}|Ts],Spec)
end;
add_tests([{event_handler,Nodes,Hs,Args}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,event_handler,[Hs,Args],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{event_handler,Node,[H|Hs],Args}|Ts],Spec) when is_atom(H) ->
EvHs = Spec#testspec.event_handler,
Node1 = ref2node(Node,Spec#testspec.nodes),
add_tests([{event_handler,Node,Hs,Args}|Ts],
Spec#testspec{event_handler=[{Node1,H,Args}|EvHs]});
add_tests([{event_handler,_Node,[],_Args}|Ts],Spec) ->
add_tests(Ts,Spec);
add_tests([{event_handler,Node,H,Args}|Ts],Spec) when is_atom(H) ->
EvHs = Spec#testspec.event_handler,
Node1 = ref2node(Node,Spec#testspec.nodes),
add_tests(Ts,Spec#testspec{event_handler=[{Node1,H,Args}|EvHs]});
%% --- include ---
add_tests([{include,all_nodes,InclDirs}|Ts],Spec) ->
Tests = lists:map(fun(N) -> {include,N,InclDirs} end, list_nodes(Spec)),
add_tests(Tests++Ts,Spec);
add_tests([{include,Nodes,InclDirs}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,include,[InclDirs],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{include,Node,[D|Ds]}|Ts],Spec) when is_list(D) ->
Dirs = Spec#testspec.include,
Node1 = ref2node(Node,Spec#testspec.nodes),
add_tests([{include,Node,Ds}|Ts],
Spec#testspec{include=[{Node1,get_absdir(D,Spec)}|Dirs]});
add_tests([{include,_Node,[]}|Ts],Spec) ->
add_tests(Ts,Spec);
add_tests([{include,Node,D}|Ts],Spec) ->
add_tests([{include,Node,[D]}|Ts],Spec);
add_tests([{include,InclDirs}|Ts],Spec) ->
add_tests([{include,all_nodes,InclDirs}|Ts],Spec);
%% --- suites ---
add_tests([{suites,all_nodes,Dir,Ss}|Ts],Spec) ->
add_tests([{suites,list_nodes(Spec),Dir,Ss}|Ts],Spec);
add_tests([{suites,Dir,Ss}|Ts],Spec) ->
add_tests([{suites,all_nodes,Dir,Ss}|Ts],Spec);
add_tests([{suites,Nodes,Dir,Ss}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,suites,[Dir,Ss],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{suites,Node,Dir,Ss}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = insert_suites(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Ss,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- groups ---
%% Later make it possible to specify group execution properties
%% that will override thse in the suite. Also make it possible
%% create dynamic groups in specification, i.e. to group test cases
%% by means of groups defined only in the test specification.
add_tests([{groups,all_nodes,Dir,Suite,Gs}|Ts],Spec) ->
add_tests([{groups,list_nodes(Spec),Dir,Suite,Gs}|Ts],Spec);
add_tests([{groups,all_nodes,Dir,Suite,Gs,{cases,TCs}}|Ts],Spec) ->
add_tests([{groups,list_nodes(Spec),Dir,Suite,Gs,{cases,TCs}}|Ts],Spec);
add_tests([{groups,Dir,Suite,Gs}|Ts],Spec) ->
add_tests([{groups,all_nodes,Dir,Suite,Gs}|Ts],Spec);
add_tests([{groups,Dir,Suite,Gs,{cases,TCs}}|Ts],Spec) ->
add_tests([{groups,all_nodes,Dir,Suite,Gs,{cases,TCs}}|Ts],Spec);
add_tests([{groups,Nodes,Dir,Suite,Gs}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,groups,[Dir,Suite,Gs],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{groups,Nodes,Dir,Suite,Gs,{cases,TCs}}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,groups,[Dir,Suite,Gs,{cases,TCs}],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{groups,Node,Dir,Suite,Gs}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = insert_groups(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Gs,all,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
add_tests([{groups,Node,Dir,Suite,Gs,{cases,TCs}}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = insert_groups(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Gs,TCs,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- cases ---
add_tests([{cases,all_nodes,Dir,Suite,Cs}|Ts],Spec) ->
add_tests([{cases,list_nodes(Spec),Dir,Suite,Cs}|Ts],Spec);
add_tests([{cases,Dir,Suite,Cs}|Ts],Spec) ->
add_tests([{cases,all_nodes,Dir,Suite,Cs}|Ts],Spec);
add_tests([{cases,Nodes,Dir,Suite,Cs}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,cases,[Dir,Suite,Cs],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{cases,Node,Dir,Suite,Cs}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = insert_cases(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Cs,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- skip_suites ---
add_tests([{skip_suites,all_nodes,Dir,Ss,Cmt}|Ts],Spec) ->
add_tests([{skip_suites,list_nodes(Spec),Dir,Ss,Cmt}|Ts],Spec);
add_tests([{skip_suites,Dir,Ss,Cmt}|Ts],Spec) ->
add_tests([{skip_suites,all_nodes,Dir,Ss,Cmt}|Ts],Spec);
add_tests([{skip_suites,Nodes,Dir,Ss,Cmt}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,skip_suites,[Dir,Ss,Cmt],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{skip_suites,Node,Dir,Ss,Cmt}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = skip_suites(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Ss,Cmt,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- skip_groups ---
add_tests([{skip_groups,all_nodes,Dir,Suite,Gs,Cmt}|Ts],Spec) ->
add_tests([{skip_groups,list_nodes(Spec),Dir,Suite,Gs,Cmt}|Ts],Spec);
add_tests([{skip_groups,all_nodes,Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec) ->
add_tests([{skip_groups,list_nodes(Spec),Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec);
add_tests([{skip_groups,Dir,Suite,Gs,Cmt}|Ts],Spec) ->
add_tests([{skip_groups,all_nodes,Dir,Suite,Gs,Cmt}|Ts],Spec);
add_tests([{skip_groups,Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec) ->
add_tests([{skip_groups,all_nodes,Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec);
add_tests([{skip_groups,Nodes,Dir,Suite,Gs,Cmt}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,skip_groups,[Dir,Suite,Gs,Cmt],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{skip_groups,Nodes,Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,skip_groups,[Dir,Suite,Gs,{cases,TCs},Cmt],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{skip_groups,Node,Dir,Suite,Gs,Cmt}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = skip_groups(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Gs,all,Cmt,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
add_tests([{skip_groups,Node,Dir,Suite,Gs,{cases,TCs},Cmt}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = skip_groups(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Gs,TCs,Cmt,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- skip_cases ---
add_tests([{skip_cases,all_nodes,Dir,Suite,Cs,Cmt}|Ts],Spec) ->
add_tests([{skip_cases,list_nodes(Spec),Dir,Suite,Cs,Cmt}|Ts],Spec);
add_tests([{skip_cases,Dir,Suite,Cs,Cmt}|Ts],Spec) ->
add_tests([{skip_cases,all_nodes,Dir,Suite,Cs,Cmt}|Ts],Spec);
add_tests([{skip_cases,Nodes,Dir,Suite,Cs,Cmt}|Ts],Spec) when is_list(Nodes) ->
Ts1 = separate(Nodes,skip_cases,[Dir,Suite,Cs,Cmt],Ts,Spec#testspec.nodes),
add_tests(Ts1,Spec);
add_tests([{skip_cases,Node,Dir,Suite,Cs,Cmt}|Ts],Spec) ->
Tests = Spec#testspec.tests,
Tests1 = skip_cases(ref2node(Node,Spec#testspec.nodes),
ref2dir(Dir,Spec#testspec.alias),
Suite,Cs,Cmt,Tests),
add_tests(Ts,Spec#testspec{tests=Tests1});
%% --- handled/errors ---
add_tests([{alias,_,_}|Ts],Spec) -> % handled
add_tests(Ts,Spec);
add_tests([{node,_,_}|Ts],Spec) -> % handled
add_tests(Ts,Spec);
%% check if it's a CT term that has bad format or if the user seems to
%% have added something of his/her own, which we'll let pass if relaxed
%% mode is enabled.
add_tests([Other|Ts],Spec) when is_tuple(Other) ->
[Name|_] = tuple_to_list(Other),
case lists:keymember(Name,1,valid_terms()) of
true -> % halt
throw({error,{bad_term_in_spec,Other}});
false -> % ignore
case get(relaxed) of
true ->
%% warn if name resembles a CT term
case resembles_ct_term(Name,size(Other)) of
true ->
io:format("~nSuspicious term, please check:~n"
"~p~n", [Other]);
false ->
ok
end,
add_tests(Ts,Spec);
false ->
throw({error,{undefined_term_in_spec,Other}})
end
end;
add_tests([Other|Ts],Spec) ->
case get(relaxed) of
true ->
add_tests(Ts,Spec);
false ->
throw({error,{undefined_term_in_spec,Other}})
end;
add_tests([],Spec) -> % done
Spec.
separate(Nodes,Tag,Data,Tests,Refs) ->
Separated = separate(Nodes,Tag,Data,Refs),
Separated ++ Tests.
separate([N|Ns],Tag,Data,Refs) ->
[list_to_tuple([Tag,ref2node(N,Refs)|Data])|separate(Ns,Tag,Data,Refs)];
separate([],_,_,_) ->
[].
%% Representation:
%% {{Node,Dir},[{Suite1,[GrOrCase11,GrOrCase12,...]},
%% {Suite2,[GrOrCase21,GrOrCase22,...]},...]}
%% {{Node,Dir},[{Suite1,{skip,Cmt}},
%% {Suite2,[{GrOrCase21,{skip,Cmt}},GrOrCase22,...]},...]}
%% GrOrCase = {GroupName,[Case1,Case2,...]} | Case
insert_suites(Node,Dir,[S|Ss],Tests) ->
Tests1 = insert_cases(Node,Dir,S,all,Tests),
insert_suites(Node,Dir,Ss,Tests1);
insert_suites(_Node,_Dir,[],Tests) ->
Tests;
insert_suites(Node,Dir,S,Tests) ->
insert_suites(Node,Dir,[S],Tests).
insert_groups(Node,Dir,Suite,Group,Cases,Tests) when is_atom(Group) ->
insert_groups(Node,Dir,Suite,[Group],Cases,Tests);
insert_groups(Node,Dir,Suite,Groups,Cases,Tests) when
((Cases == all) or is_list(Cases)) and is_list(Groups) ->
case lists:keysearch({Node,Dir},1,Tests) of
{value,{{Node,Dir},[{all,_}]}} ->
Tests;
{value,{{Node,Dir},Suites0}} ->
Suites1 = insert_groups1(Suite,
[{Gr,Cases} || Gr <- Groups],
Suites0),
insert_in_order({{Node,Dir},Suites1},Tests);
false ->
Groups1 = [{Gr,Cases} || Gr <- Groups],
insert_in_order({{Node,Dir},[{Suite,Groups1}]},Tests)
end;
insert_groups(Node,Dir,Suite,Groups,Case,Tests) when is_atom(Case) ->
Cases = if Case == all -> all; true -> [Case] end,
insert_groups(Node,Dir,Suite,Groups,Cases,Tests).
insert_groups1(_Suite,_Groups,all) ->
all;
insert_groups1(Suite,Groups,Suites0) ->
case lists:keysearch(Suite,1,Suites0) of
{value,{Suite,all}} ->
Suites0;
{value,{Suite,GrAndCases0}} ->
GrAndCases = insert_groups2(Groups,GrAndCases0),
insert_in_order({Suite,GrAndCases},Suites0);
false ->
insert_in_order({Suite,Groups},Suites0)
end.
insert_groups2(_Groups,all) ->
all;
insert_groups2([Group={GrName,Cases}|Groups],GrAndCases) ->
case lists:keysearch(GrName,1,GrAndCases) of
{value,{GrName,all}} ->
GrAndCases;
{value,{GrName,Cases0}} ->
Cases1 = insert_in_order(Cases,Cases0),
insert_groups2(Groups,insert_in_order({GrName,Cases1},GrAndCases));
false ->
insert_groups2(Groups,insert_in_order(Group,GrAndCases))
end;
insert_groups2([],GrAndCases) ->
GrAndCases.
insert_cases(Node,Dir,Suite,Cases,Tests) when is_list(Cases) ->
case lists:keysearch({Node,Dir},1,Tests) of
{value,{{Node,Dir},[{all,_}]}} ->
Tests;
{value,{{Node,Dir},Suites0}} ->
Suites1 = insert_cases1(Suite,Cases,Suites0),
insert_in_order({{Node,Dir},Suites1},Tests);
false ->
insert_in_order({{Node,Dir},[{Suite,Cases}]},Tests)
end;
insert_cases(Node,Dir,Suite,Case,Tests) when is_atom(Case) ->
insert_cases(Node,Dir,Suite,[Case],Tests).
insert_cases1(_Suite,_Cases,all) ->
all;
insert_cases1(Suite,Cases,Suites0) ->
case lists:keysearch(Suite,1,Suites0) of
{value,{Suite,all}} ->
Suites0;
{value,{Suite,Cases0}} ->
Cases1 = insert_in_order(Cases,Cases0),
insert_in_order({Suite,Cases1},Suites0);
false ->
insert_in_order({Suite,Cases},Suites0)
end.
skip_suites(Node,Dir,[S|Ss],Cmt,Tests) ->
Tests1 = skip_cases(Node,Dir,S,all,Cmt,Tests),
skip_suites(Node,Dir,Ss,Cmt,Tests1);
skip_suites(_Node,_Dir,[],_Cmt,Tests) ->
Tests;
skip_suites(Node,Dir,S,Cmt,Tests) ->
skip_suites(Node,Dir,[S],Cmt,Tests).
skip_groups(Node,Dir,Suite,Group,Case,Cmt,Tests) when is_atom(Group) ->
skip_groups(Node,Dir,Suite,[Group],[Case],Cmt,Tests);
skip_groups(Node,Dir,Suite,Groups,Cases,Cmt,Tests) when
((Cases == all) or is_list(Cases)) and is_list(Groups) ->
Suites =
case lists:keysearch({Node,Dir},1,Tests) of
{value,{{Node,Dir},Suites0}} ->
Suites0;
false ->
[]
end,
Suites1 = skip_groups1(Suite,[{Gr,Cases} || Gr <- Groups],Cmt,Suites),
insert_in_order({{Node,Dir},Suites1},Tests);
skip_groups(Node,Dir,Suite,Groups,Case,Cmt,Tests) when is_atom(Case) ->
Cases = if Case == all -> all; true -> [Case] end,
skip_groups(Node,Dir,Suite,Groups,Cases,Cmt,Tests).
skip_groups1(Suite,Groups,Cmt,Suites0) ->
SkipGroups = lists:map(fun(Group) ->
{Group,{skip,Cmt}}
end,Groups),
case lists:keysearch(Suite,1,Suites0) of
{value,{Suite,GrAndCases0}} ->
GrAndCases1 = GrAndCases0 ++ SkipGroups,
insert_in_order({Suite,GrAndCases1},Suites0);
false ->
insert_in_order({Suite,SkipGroups},Suites0)
end.
skip_cases(Node,Dir,Suite,Cases,Cmt,Tests) when is_list(Cases) ->
Suites =
case lists:keysearch({Node,Dir},1,Tests) of
{value,{{Node,Dir},Suites0}} ->
Suites0;
false ->
[]
end,
Suites1 = skip_cases1(Suite,Cases,Cmt,Suites),
insert_in_order({{Node,Dir},Suites1},Tests);
skip_cases(Node,Dir,Suite,Case,Cmt,Tests) when is_atom(Case) ->
skip_cases(Node,Dir,Suite,[Case],Cmt,Tests).
skip_cases1(Suite,Cases,Cmt,Suites0) ->
SkipCases = lists:map(fun(C) ->
{C,{skip,Cmt}}
end,Cases),
case lists:keysearch(Suite,1,Suites0) of
{value,{Suite,Cases0}} ->
Cases1 = Cases0 ++ SkipCases,
insert_in_order({Suite,Cases1},Suites0);
false ->
insert_in_order({Suite,SkipCases},Suites0)
end.
insert_in_order([E|Es],List) ->
List1 = insert_elem(E,List,[]),
insert_in_order(Es,List1);
insert_in_order([],List) ->
List;
insert_in_order(E,List) ->
insert_elem(E,List,[]).
%% replace an existing entry (same key) or add last in list
insert_elem({Key,_}=E,[{Key,_}|Rest],SoFar) ->
lists:reverse([E|SoFar]) ++ Rest;
insert_elem({E,_},[E|Rest],SoFar) ->
lists:reverse([E|SoFar]) ++ Rest;
insert_elem(E,[E|Rest],SoFar) ->
lists:reverse([E|SoFar]) ++ Rest;
insert_elem(E,[E1|Rest],SoFar) ->
insert_elem(E,Rest,[E1|SoFar]);
insert_elem(E,[],SoFar) ->
lists:reverse([E|SoFar]).
ref2node(all_nodes,_Refs) ->
all_nodes;
ref2node(master,_Refs) ->
master;
ref2node(RefOrNode,Refs) ->
case string:chr(atom_to_list(RefOrNode),$@) of
0 -> % a ref
case lists:keysearch(RefOrNode,1,Refs) of
{value,{RefOrNode,Node}} ->
Node;
false ->
throw({error,{noderef_missing,RefOrNode}})
end;
_ -> % a node
RefOrNode
end.
ref2dir(Ref,Refs) when is_atom(Ref) ->
case lists:keysearch(Ref,1,Refs) of
{value,{Ref,Dir}} ->
Dir;
false ->
throw({error,{alias_missing,Ref}})
end;
ref2dir(Dir,_) when is_list(Dir) ->
Dir.
is_noderef(What,Nodes) when is_atom(What) ->
is_noderef([What],Nodes);
is_noderef([master|_],_Nodes) ->
true;
is_noderef([What|_],Nodes) ->
case lists:keymember(What,1,Nodes) or
lists:keymember(What,2,Nodes) of
true ->
true;
false ->
false
end;
is_noderef([],_) ->
false.
valid_terms() ->
[
{node,3},
{cover,2},
{cover,3},
{config,2},
{config,3},
{userconfig, 2},
{userconfig, 3},
{alias,3},
{logdir,2},
{logdir,3},
{event_handler,2},
{event_handler,3},
{event_handler,4},
{include,2},
{include,3},
{suites,3},
{suites,4},
{cases,4},
{cases,5},
{skip_suites,4},
{skip_suites,5},
{skip_cases,5},
{skip_cases,6}
].
%% this function "guesses" if the user has misspelled a term name
resembles_ct_term(Name,Size) when is_atom(Name) ->
resembles_ct_term2(atom_to_list(Name),Size);
resembles_ct_term(_Name,_) ->
false.
resembles_ct_term2(Name,Size) when length(Name) > 3 ->
CTTerms = [{atom_to_list(Tag),Sz} || {Tag,Sz} <- valid_terms()],
compare_names(Name,Size,CTTerms);
resembles_ct_term2(_,_) ->
false.
compare_names(Name,Size,[{Term,Sz}|Ts]) ->
if abs(Size-Sz) > 0 ->
compare_names(Name,Size,Ts);
true ->
Diff = abs(length(Name)-length(Term)),
if Diff > 1 ->
compare_names(Name,Size,Ts);
true ->
Common = common_letters(Name,Term,0),
Bad = abs(length(Name)-Common),
if Bad > 2 ->
compare_names(Name,Size,Ts);
true ->
true
end
end
end;
compare_names(_,_,[]) ->
false.
common_letters(_,[],Count) ->
Count;
common_letters([L|Ls],Term,Count) ->
case lists:member(L,Term) of
true ->
Term1 = lists:delete(L,Term),
common_letters(Ls,Term1,Count+1);
false ->
common_letters(Ls,Term,Count)
end;
common_letters([],_,Count) ->
Count.
