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path: root/lib/stdlib/test/array_SUITE.erl
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%%
%% %CopyrightBegin%
%% 
%% Copyright Ericsson AB 2007-2011. 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%
%%

-module(array_SUITE).

-include_lib("test_server/include/test_server.hrl").

%% Default timetrap timeout (set in init_per_testcase).
%% This should be set relatively high (10-15 times the expected
%% max testcasetime).
-define(default_timeout, ?t:seconds(60)).

%% Test server specific exports
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
	 init_per_group/2,end_per_group/2]).
-export([init_per_testcase/2, end_per_testcase/2]).

-export([
  	 new_test/1,
	 fix_test/1,
	 relax_test/1,
	 resize_test/1,
  	 set_get_test/1,
  	 to_list_test/1,
  	 sparse_to_list_test/1,
  	 from_list_test/1,
  	 to_orddict_test/1,
  	 sparse_to_orddict_test/1,
  	 from_orddict_test/1,
  	 map_test/1,
  	 sparse_map_test/1,
  	 foldl_test/1,
  	 sparse_foldl_test/1,
  	 foldr_test/1,
  	 sparse_foldr_test/1
	]).


-export([t/0,t/1,extract_tests/0]).

-import(array, 
	[new/0, new/1, new/2, is_array/1, set/3, get/2, %size/1,
	 sparse_size/1, default/1, reset/2, to_list/1, sparse_to_list/1,
	 from_list/1, from_list/2, to_orddict/1, sparse_to_orddict/1,
	 from_orddict/1, from_orddict/2, map/2, sparse_map/2, foldl/3,
	 foldr/3, sparse_foldl/3, sparse_foldr/3, fix/1, relax/1, is_fix/1,
	 resize/1, resize/2]).

%%
%% all/1
%%
suite() -> [{ct_hooks,[ts_install_cth]}].

all() -> 
    [new_test, fix_test, relax_test, resize_test,
     set_get_test, to_list_test, sparse_to_list_test,
     from_list_test, to_orddict_test, sparse_to_orddict_test,
     from_orddict_test, map_test, sparse_map_test,
     foldl_test, sparse_foldl_test, foldr_test,
     sparse_foldr_test].

groups() -> 
    [].

init_per_suite(Config) ->
    Config.

end_per_suite(_Config) ->
    ok.

init_per_group(_GroupName, Config) ->
    Config.

end_per_group(_GroupName, Config) ->
    Config.


init_per_testcase(_Case, Config) ->
    ?line Dog=test_server:timetrap(?default_timeout),
    [{watchdog, Dog}|Config].

end_per_testcase(_Case, Config) ->
    Dog=?config(watchdog, Config),
    test_server:timetrap_cancel(Dog),
    ok.

-define(LEAFSIZE,10).
-define(NODESIZE,?LEAFSIZE).

-record(array,  {size,		%% number of defined entries
		 max,		%% maximum number of entries in current tree
		 default,	%% the default value (usually 'undefined')
		 elements	%% the tuple tree
		}).

-define(_assert(What), 
	begin ?line true = What end
       ).
-define(_assertNot(What), 
	begin ?line false = What end
       ).

-define(_assertMatch(Res,What), 
	begin 
	    ?line case What of Res -> ok end
	end
       ).
-define(_assertError(Reas,What), 
	begin ?line fun() ->
			    try What of
				A_Success -> exit({test_error, A_Success})
			    catch error:Reas -> ok end
		    end()
	end
       ).

-define(LET(Var,Expr, Test), begin ?line fun() -> Var = Expr, Test end() end).

-define(_test(Expr), begin ?line Expr end).

%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Some helpers to be able to run the tests without testserver
%%%%%%%%%%%%%%%%%%%%%%%%%
t() -> t([all]).

t(What) when not is_list(What) ->
    t([What]);
t(What) ->
    lists:foreach(fun(T) ->
			  io:format("Test ~p ~n",[T]),
			  try 
			      ?MODULE:T([])
			  catch _E:_R ->
				  Line = get(test_server_loc),
				  io:format("Failed ~p:~p ~p ~p~n   ~p~n", 
					    [T,Line,_E,_R, erlang:get_stacktrace()])
			  end
		  end, expand(What)).

expand(All) ->
    lists:reverse(expand(All,[])).
expand([H|T], Acc)  -> 
    case ?MODULE:H(suite) of
	[] -> expand(T,[H|Acc]);
	Cs -> 
	    R = expand(Cs, Acc),
	    expand(T, R)
    end;
expand([], Acc) -> Acc.

%%%%% extract tests 

extract_tests() ->
    {ok, In} = file:open("../src/array.erl", [read]),
    {ok, Out} = file:open("array_temp.erl", [write]),
    try 
	Tests = extract_tests(In,Out,[]),
	Call = fun(Test) ->
		       io:format(Out, "~s(doc) -> [];~n", [Test]),
		       io:format(Out, "~s(suite) -> [];~n", [Test]),
		       io:format(Out, "~s(Config) when is_list(Config) -> ~s_(), ok.~n",
				 [Test, Test])
	       end,
	[Call(Test) || Test <- Tests],
	io:format("Tests ~p~n", [Tests])
    catch _:Err ->
	    io:format("Error: ~p ~p~n", [Err, erlang:get_stacktrace()])
    end,
    file:close(In),
    file:close(Out).

extract_tests(In,Out,Tests) ->
    case io:get_line(In,"") of
	eof -> lists:reverse(Tests);
	"-ifdef(EUNIT)" ++ _ ->
	    Test = write_test(In,Out),
	    extract_tests(In,Out, [Test|Tests]);
	_E ->
	    extract_tests(In,Out,Tests)
    end.

write_test(In,Out) ->
    Line = io:get_line(In,""),
    io:put_chars(Out, Line),
    [$_|Test] = lists:dropwhile(fun($_) -> false;(_) -> true end,lists:reverse(Line)),
    write_test_1(In,Out),
    lists:reverse(Test).
   
write_test_1(In,Out) ->
    case io:get_line(In,"") of
	"-endif" ++ _ ->
	    io:nl(Out),
	    ok;
	Line ->
	    io:put_chars(Out, Line),
	    write_test_1(In,Out)
    end.	   

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Actual tests

new_test_() ->
    N0 = ?LEAFSIZE,
    N01 = N0+1,
    N1 = ?NODESIZE*N0,
    N11 = N1+1,
    N2 = ?NODESIZE*N1,
    [?_test(new()),

     ?_test(new([])),
     ?_test(new(10)),
     ?_test(new({size,10})),
     ?_test(new(fixed)),
     ?_test(new({fixed,true})),
     ?_test(new({fixed,false})),
     ?_test(new({default,undefined})),
     ?_test(new([{size,100},{fixed,false},{default,undefined}])),
     ?_test(new([100,fixed,{default,0}])),

     ?_assert(new() =:= new([])),
     ?_assert(new() =:= new([{size,0},{default,undefined},{fixed,false}])),
     ?_assert(new() =:= new(0, {fixed,false})),
     ?_assert(new(fixed) =:= new(0)),
     ?_assert(new(fixed) =:= new(0, [])),
     ?_assert(new(10) =:= new([{size,0},{size,5},{size,10}])),
     ?_assert(new(10) =:= new(0, {size,10})),
     ?_assert(new(10, []) =:= new(10, [{default,undefined},{fixed,true}])),

     ?_assertError(badarg, new(-1)),
     ?_assertError(badarg, new(10.0)),
     ?_assertError(badarg, new(undefined)),
     ?_assertError(badarg, new([undefined])),
     ?_assertError(badarg, new([{default,0} | fixed])),

     ?_assertError(badarg, new(-1, [])),
     ?_assertError(badarg, new(10.0, [])),
     ?_assertError(badarg, new(undefined, [])),

     ?_assertMatch(#array{size=0,max=N0,default=undefined,elements=N0},
		   new()),
     ?_assertMatch(#array{size=0,max=0,default=undefined,elements=N0},
		   new(fixed)),
     ?_assertMatch(#array{size=N0,max=N0,elements=N0},
		   new(N0, {fixed,false})),
     ?_assertMatch(#array{size=N01,max=N1,elements=N1},
		   new(N01, {fixed,false})),
     ?_assertMatch(#array{size=N1,max=N1,elements=N1},
		   new(N1, {fixed,false})),
     ?_assertMatch(#array{size=N11,max=N2,elements=N2},
		   new(N11, {fixed,false})),
     ?_assertMatch(#array{size=N2, max=N2, default=42,elements=N2},
		   new(N2, [{fixed,false},{default,42}])),

     ?_assert(0 =:= array:size(new())),
     ?_assert(17 =:= array:size(new(17))),
     ?_assert(100 =:= array:size(array:set(99,0,new()))),
     ?_assertError(badarg, array:size({bad_data,gives_error})),

     ?_assert(undefined =:= default(new())),
     ?_assert(4711 =:= default(new({default,4711}))),
     ?_assert(0 =:= default(new(10, {default,0}))),
     ?_assertError(badarg, default({bad_data,gives_error})),

     ?_assert(is_array(new())),
     ?_assert(false =:= is_array({foobar, 23, 23})),
     ?_assert(false =:= is_array(#array{size=bad})),
     ?_assert(false =:= is_array(#array{max=bad})),
     ?_assert(is_array(new(10))),
     ?_assert(is_array(new(10, {fixed,false})))
    ].

fix_test_() ->
    [?_assert(is_array(fix(new()))),
     ?_assert(fix(new()) =:= new(fixed)),

     ?_assertNot(is_fix(new())),
     ?_assertNot(is_fix(new([]))),
     ?_assertNot(is_fix(new({fixed,false}))),
     ?_assertNot(is_fix(new(10, {fixed,false}))),
     ?_assert(is_fix(new({fixed,true}))),
     ?_assert(is_fix(new(fixed))),
     ?_assert(is_fix(new(10))),
     ?_assert(is_fix(new(10, []))),
     ?_assert(is_fix(new(10, {fixed,true}))),
     ?_assert(is_fix(fix(new()))),
     ?_assert(is_fix(fix(new({fixed,false})))),

     ?_test(set(0, 17, new())),
     ?_assertError(badarg, set(0, 17, new(fixed))),
     ?_assertError(badarg, set(1, 42, fix(set(0, 17, new())))),

     ?_test(set(9, 17, new(10))),
     ?_assertError(badarg, set(10, 17, new(10))),
     ?_assertError(badarg, set(10, 17, fix(new(10, {fixed,false}))))
    ].

relax_test_() ->
    [?_assert(is_array(relax(new(fixed)))),
     ?_assertNot(is_fix(relax(fix(new())))),
     ?_assertNot(is_fix(relax(new(fixed)))),

     ?_assert(new() =:= relax(new(fixed))),
     ?_assert(new() =:= relax(new(0))),
     ?_assert(new(17, {fixed,false}) =:= relax(new(17))),
     ?_assert(new(100, {fixed,false})
	      =:= relax(fix(new(100, {fixed,false}))))
    ].

resize_test_() ->
    [?_assert(resize(0, new()) =:= new()),
     ?_assert(resize(99, new(99)) =:= new(99)),
     ?_assert(resize(99, relax(new(99))) =:= relax(new(99))),
     ?_assert(is_fix(resize(100, new(10)))),
     ?_assertNot(is_fix(resize(100, relax(new(10))))),

     ?_assert(array:size(resize(100, new())) =:= 100),
     ?_assert(array:size(resize(0, new(100))) =:= 0),
     ?_assert(array:size(resize(99, new(10))) =:= 99),
     ?_assert(array:size(resize(99, new(1000))) =:= 99),

     ?_assertError(badarg, set(99, 17, new(10))),
     ?_test(set(99, 17, resize(100, new(10)))),
     ?_assertError(badarg, set(100, 17, resize(100, new(10)))),

     ?_assert(array:size(resize(new())) =:= 0),
     ?_assert(array:size(resize(new(8))) =:= 0),
     ?_assert(array:size(resize(array:set(7, 0, new()))) =:= 8),
     ?_assert(array:size(resize(array:set(7, 0, new(10)))) =:= 8),
     ?_assert(array:size(resize(array:set(99, 0, new(10,{fixed,false}))))
	      =:= 100),
     ?_assert(array:size(resize(array:set(7, undefined, new()))) =:= 0),
     ?_assert(array:size(resize(array:from_list([1,2,3,undefined])))
	      =:= 3),
     ?_assert(array:size(
		resize(array:from_orddict([{3,0},{17,0},{99,undefined}])))
	      =:= 18),
     ?_assertError(badarg, resize(foo, bad_argument))
    ].

set_get_test_() ->
    N0 = ?LEAFSIZE,
    N1 = ?NODESIZE*N0,
    [?_assert(array:get(0, new()) =:= undefined),
     ?_assert(array:get(1, new()) =:= undefined),
     ?_assert(array:get(99999, new()) =:= undefined),

     ?_assert(array:get(0, new(1)) =:= undefined),
     ?_assert(array:get(0, new(1,{default,0})) =:= 0),
     ?_assert(array:get(9, new(10)) =:= undefined),

     ?_assertError(badarg, array:get(0, new(fixed))),
     ?_assertError(badarg, array:get(1, new(1))),
     ?_assertError(badarg, array:get(-1, new(1))),
     ?_assertError(badarg, array:get(10, new(10))),
     ?_assertError(badarg, array:set(-1, foo, new(10))),
     ?_assertError(badarg, array:set(10, foo, no_array)),

     ?_assert(array:size(set(0, 17, new())) =:= 1),
     ?_assert(array:size(set(N1-1, 17, new())) =:= N1),
     ?_assert(array:size(set(0, 42, set(0, 17, new()))) =:= 1),
     ?_assert(array:size(set(9, 42, set(0, 17, new()))) =:= 10),

     ?_assert(array:get(0, set(0, 17, new())) =:= 17),
     ?_assert(array:get(0, set(1, 17, new())) =:= undefined),
     ?_assert(array:get(1, set(1, 17, new())) =:= 17),

     ?_assert(array:get(0, fix(set(0, 17, new()))) =:= 17),
     ?_assertError(badarg, array:get(1, fix(set(0, 17, new())))),

     ?_assert(array:get(N1-2, set(N1-1, 17, new())) =:= undefined),
     ?_assert(array:get(N1-1, set(N1-1, 17, new())) =:= 17),
     ?_assertError(badarg, array:get(N1, fix(set(N1-1, 17, new())))),

     ?_assert(array:get(0, set(0, 42, set(0, 17, new()))) =:= 42),

     ?_assertError(badarg, array:get(0, reset(11, new([{size,10}])))),
     ?_assertError(badarg, array:get(0, reset(-1, new([{size,10}])))),
     ?_assert(array:get(0, reset(0,  new())) =:= undefined),
     ?_assert(array:get(0, reset(0,  set(0,  17, new()))) =:= undefined),
     ?_assert(array:get(0, reset(9,  set(9,  17, new()))) =:= undefined),
     ?_assert(array:get(0, reset(11, set(11, 17, new()))) =:= undefined),
     ?_assert(array:get(0, reset(11, set(12, 17, new()))) =:= undefined),
     ?_assert(array:get(0, reset(1,  set(12, 17, new()))) =:= undefined),
     ?_assert(array:get(0, reset(11, new())) =:= undefined),
     ?_assert(array:get(0, reset(0,  set(0,  17, new({default,42})))) =:= 42),
     ?_assert(array:get(0, reset(0,  new({default,42}))) =:= 42)
    ].

to_list_test_() ->
    N0 = ?LEAFSIZE,
    [?_assert([] =:= to_list(new())),
     ?_assert([undefined] =:= to_list(new(1))),
     ?_assert([undefined,undefined] =:= to_list(new(2))),
     ?_assert(lists:duplicate(N0,0) =:= to_list(new(N0,{default,0}))),
     ?_assert(lists:duplicate(N0+1,1) =:= to_list(new(N0+1,{default,1}))),
     ?_assert(lists:duplicate(N0+2,2) =:= to_list(new(N0+2,{default,2}))),
     ?_assert(lists:duplicate(666,6) =:= to_list(new(666,{default,6}))),
     ?_assert([1,2,3] =:= to_list(set(2,3,set(1,2,set(0,1,new()))))),
     ?_assert([3,2,1] =:= to_list(set(0,3,set(1,2,set(2,1,new()))))),
     ?_assert([1|lists:duplicate(N0-2,0)++[1]] =:= 
	      to_list(set(N0-1,1,set(0,1,new({default,0}))))),
     ?_assert([1|lists:duplicate(N0-1,0)++[1]] =:= 
	      to_list(set(N0,1,set(0,1,new({default,0}))))),
     ?_assert([1|lists:duplicate(N0,0)++[1]] =:= 
	      to_list(set(N0+1,1,set(0,1,new({default,0}))))),
     ?_assert([1|lists:duplicate(N0*3,0)++[1]] =:= 
	      to_list(set((N0*3)+1,1,set(0,1,new({default,0}))))),
     ?_assertError(badarg, to_list(no_array))
    ].

sparse_to_list_test_() ->
    N0 = ?LEAFSIZE,
    [?_assert([] =:= sparse_to_list(new())),
     ?_assert([] =:= sparse_to_list(new(1))),
     ?_assert([] =:= sparse_to_list(new(1,{default,0}))),
     ?_assert([] =:= sparse_to_list(new(2))),
     ?_assert([] =:= sparse_to_list(new(2,{default,0}))),
     ?_assert([] =:= sparse_to_list(new(N0,{default,0}))),
     ?_assert([] =:= sparse_to_list(new(N0+1,{default,1}))),
     ?_assert([] =:= sparse_to_list(new(N0+2,{default,2}))),
     ?_assert([] =:= sparse_to_list(new(666,{default,6}))),
     ?_assert([1,2,3] =:= sparse_to_list(set(2,3,set(1,2,set(0,1,new()))))),
     ?_assert([3,2,1] =:= sparse_to_list(set(0,3,set(1,2,set(2,1,new()))))),
     ?_assert([0,1] =:= sparse_to_list(set(N0-1,1,set(0,0,new())))),
     ?_assert([0,1] =:= sparse_to_list(set(N0,1,set(0,0,new())))),
     ?_assert([0,1] =:= sparse_to_list(set(N0+1,1,set(0,0,new())))),
     ?_assert([0,1,2] =:= sparse_to_list(set(N0*10+1,2,set(N0*2+1,1,set(0,0,new()))))),
     ?_assertError(badarg, sparse_to_list(no_array))
    ].

from_list_test_() ->
    N0 = ?LEAFSIZE,
    N1 = ?NODESIZE*N0,
    N2 = ?NODESIZE*N1,
    N3 = ?NODESIZE*N2,
    N4 = ?NODESIZE*N3,
    [?_assert(array:size(from_list([])) =:= 0),
     ?_assert(array:is_fix(from_list([])) =:= false),
     ?_assert(array:size(from_list([undefined])) =:= 1),
     ?_assert(array:is_fix(from_list([undefined])) =:= false),
     ?_assert(array:size(from_list(lists:seq(1,N1))) =:= N1),
     ?_assert(to_list(from_list(lists:seq(1,N0))) =:= lists:seq(1,N0)),
     ?_assert(to_list(from_list(lists:seq(1,N0+1))) =:= lists:seq(1,N0+1)),
     ?_assert(to_list(from_list(lists:seq(1,N0+2))) =:= lists:seq(1,N0+2)),
     ?_assert(to_list(from_list(lists:seq(1,N2))) =:= lists:seq(1,N2)),
     ?_assert(to_list(from_list(lists:seq(1,N2+1))) =:= lists:seq(1,N2+1)),
     ?_assert(to_list(from_list(lists:seq(0,N3))) =:= lists:seq(0,N3)),
     ?_assert(to_list(from_list(lists:seq(0,N4))) =:= lists:seq(0,N4)),
     ?_assertError(badarg, from_list([a,b,a,c|d])),
     ?_assertError(badarg, from_list(no_array))     
    ].

to_orddict_test_() ->
    N0 = ?LEAFSIZE,
    [?_assert([] =:= to_orddict(new())),
     ?_assert([{0,undefined}] =:= to_orddict(new(1))),
     ?_assert([{0,undefined},{1,undefined}] =:= to_orddict(new(2))),
     ?_assert([{N,0}||N<-lists:seq(0,N0-1)]
	      =:= to_orddict(new(N0,{default,0}))),
     ?_assert([{N,1}||N<-lists:seq(0,N0)]
	      =:= to_orddict(new(N0+1,{default,1}))),
     ?_assert([{N,2}||N<-lists:seq(0,N0+1)]
	      =:= to_orddict(new(N0+2,{default,2}))),
     ?_assert([{N,6}||N<-lists:seq(0,665)]
	      =:= to_orddict(new(666,{default,6}))),
     ?_assert([{0,1},{1,2},{2,3}] =:=
	      to_orddict(set(2,3,set(1,2,set(0,1,new()))))),
     ?_assert([{0,3},{1,2},{2,1}] =:=
	      to_orddict(set(0,3,set(1,2,set(2,1,new()))))),
     ?_assert([{0,1}|[{N,0}||N<-lists:seq(1,N0-2)]++[{N0-1,1}]]
	      =:= to_orddict(set(N0-1,1,set(0,1,new({default,0}))))),
     ?_assert([{0,1}|[{N,0}||N<-lists:seq(1,N0-1)]++[{N0,1}]]
	      =:= to_orddict(set(N0,1,set(0,1,new({default,0}))))),
     ?_assert([{0,1}|[{N,0}||N<-lists:seq(1,N0)]++[{N0+1,1}]]
	      =:= to_orddict(set(N0+1,1,set(0,1,new({default,0}))))),
     ?_assert([{0,0} | [{N,undefined}||N<-lists:seq(1,N0*2)]] ++ 
	      [{N0*2+1,1} | [{N,undefined}||N<-lists:seq(N0*2+2,N0*10)]] ++
	      [{N0*10+1,2}] =:= 
	      to_orddict(set(N0*10+1,2,set(N0*2+1,1,set(0,0,new()))))),
     ?_assertError(badarg, to_orddict(no_array))     
    ].

sparse_to_orddict_test_() ->
    N0 = ?LEAFSIZE,
    [?_assert([] =:= sparse_to_orddict(new())),
     ?_assert([] =:= sparse_to_orddict(new(1))),
     ?_assert([] =:= sparse_to_orddict(new(1,{default,0}))),
     ?_assert([] =:= sparse_to_orddict(new(2))),
     ?_assert([] =:= sparse_to_orddict(new(2,{default,0}))),
     ?_assert([] =:= sparse_to_orddict(new(N0,{default,0}))),
     ?_assert([] =:= sparse_to_orddict(new(N0+1,{default,1}))),
     ?_assert([] =:= sparse_to_orddict(new(N0+2,{default,2}))),
     ?_assert([] =:= sparse_to_orddict(new(666,{default,6}))),
     ?_assert([{0,1},{1,2},{2,3}] =:=
	      sparse_to_orddict(set(2,3,set(1,2,set(0,1,new()))))),
     ?_assert([{0,3},{1,2},{2,1}] =:=
	      sparse_to_orddict(set(0,3,set(1,2,set(2,1,new()))))),
     ?_assert([{0,1},{N0-1,1}] =:=
	      sparse_to_orddict(set(N0-1,1,set(0,1,new({default,0}))))),
     ?_assert([{0,1},{N0,1}] =:=
	      sparse_to_orddict(set(N0,1,set(0,1,new({default,0}))))),
     ?_assert([{0,1},{N0+1,1}] =:=
	      sparse_to_orddict(set(N0+1,1,set(0,1,new({default,0}))))),
     ?_assert([{0,0},{N0*2+1,1},{N0*10+1,2}] =:= 
	      sparse_to_orddict(set(N0*10+1,2,set(N0*2+1,1,set(0,0,new()))))),
     ?_assertError(badarg, sparse_to_orddict(no_array))     
    ].

from_orddict_test_() ->
    N0 = ?LEAFSIZE,
    N1 = ?NODESIZE*N0,
    N2 = ?NODESIZE*N1,
    N3 = ?NODESIZE*N2,
    N4 = ?NODESIZE*N3,
    [?_assert(array:size(from_orddict([])) =:= 0),
     ?_assert(array:is_fix(from_orddict([])) =:= false),
     ?_assert(array:size(from_orddict([{0,undefined}])) =:= 1),
     ?_assert(array:is_fix(from_orddict([{0,undefined}])) =:= false),
     ?_assert(array:size(from_orddict([{N0-1,undefined}])) =:= N0),
     ?_assert(array:size(from_orddict([{N,0}||N<-lists:seq(0,N1-1)]))
	      =:= N1),
     ?_assertError({badarg,_}, from_orddict([foo])),
     ?_assertError({badarg,_}, from_orddict([{200,foo},{1,bar}])),
     ?_assertError({badarg,_}, from_orddict([{N,0}||N<-lists:seq(0,N0-1)] ++ not_a_list)),
     ?_assertError(badarg, from_orddict(no_array)),


     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N0-1)],
		   L =:= to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N0)],
		   L =:= to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N2-1)],
		   L =:= to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N2)],
		   L =:= to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N3-1)],
		   L =:= to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N,0}||N<-lists:seq(0,N4-1)],
		   L =:= to_orddict(from_orddict(L)))),

     %% Hole in the begining
     ?_assert(?LET(L, [{0,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N0,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N3,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N4,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N0-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N1-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N3-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{N4-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),

     %% Hole in middle 
     
     ?_assert(?LET(L, [{0,0},{N0,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N3,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N4,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N0-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N1-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N3-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L)))),
     ?_assert(?LET(L, [{0,0},{N4-1,0}],
		   L =:= sparse_to_orddict(from_orddict(L))))
     
    ].

map_test_() ->
    N0 = ?LEAFSIZE,
    Id = fun (_,X) -> X end,
    Plus = fun(N) -> fun (_,X) -> X+N end end,
    Default = fun(_K,undefined) ->  no_value;
		 (K,V) -> K+V
	      end,
    [?_assertError(badarg, map([], new())),
     ?_assertError(badarg, map([], new(10))),
     ?_assert(to_list(map(Id, new())) =:= []),
     ?_assert(to_list(map(Id, new(1))) =:= [undefined]),
     ?_assert(to_list(map(Id, new(5,{default,0}))) =:= [0,0,0,0,0]),
     ?_assert(to_list(map(Id, from_list([1,2,3,4]))) =:= [1,2,3,4]),
     ?_assert(to_list(map(Plus(1), from_list([0,1,2,3]))) =:= [1,2,3,4]),
     ?_assert(to_list(map(Plus(-1), from_list(lists:seq(1,11))))
	      =:= lists:seq(0,10)),
     ?_assert(to_list(map(Plus(11), from_list(lists:seq(0,99999))))
	      =:= lists:seq(11,100010)),
     ?_assert([{0,0},{N0*2+1,N0*2+1+1},{N0*100+1,N0*100+1+2}] =:= 
	      sparse_to_orddict((map(Default, 
				     set(N0*100+1,2,
					 set(N0*2+1,1,
					     set(0,0,new())))))#array{default = no_value}))
    ].

sparse_map_test_() ->
    N0 = ?LEAFSIZE,
    Id = fun (_,X) -> X end,
    Plus = fun(N) -> fun (_,X) -> X+N end end,
    KeyPlus = fun (K,X) -> K+X end,
    [?_assertError(badarg, sparse_map([], new())),
     ?_assertError(badarg, sparse_map([], new(10))),
     ?_assert(to_list(sparse_map(Id, new())) =:= []),
     ?_assert(to_list(sparse_map(Id, new(1))) =:= [undefined]),
     ?_assert(to_list(sparse_map(Id, new(5,{default,0}))) =:= [0,0,0,0,0]),
     ?_assert(to_list(sparse_map(Id, from_list([1,2,3,4]))) =:= [1,2,3,4]),
     ?_assert(to_list(sparse_map(Plus(1), from_list([0,1,2,3])))
	      =:= [1,2,3,4]),
     ?_assert(to_list(sparse_map(Plus(-1), from_list(lists:seq(1,11))))
	      =:= lists:seq(0,10)),
     ?_assert(to_list(sparse_map(Plus(11), from_list(lists:seq(0,99999))))
	      =:= lists:seq(11,100010)),
     ?_assert(to_list(sparse_map(Plus(1), set(1,1,new({default,0}))))
	      =:= [0,2]),
     ?_assert(to_list(sparse_map(Plus(1),
				 set(3,4,set(0,1,new({default,0})))))
	      =:= [2,0,0,5]),
     ?_assert(to_list(sparse_map(Plus(1),
				 set(9,9,set(1,1,new({default,0})))))
	      =:= [0,2,0,0,0,0,0,0,0,10]),
     ?_assert([{0,0},{N0*2+1,N0*2+1+1},{N0*100+1,N0*100+1+2}] =:= 
	      sparse_to_orddict(sparse_map(KeyPlus, 
					   set(N0*100+1,2,
					       set(N0*2+1,1,
						   set(0,0,new()))))))

    ].

foldl_test_() ->
    N0 = ?LEAFSIZE,
    Count = fun (_,_,N) -> N+1 end,
    Sum = fun (_,X,N) -> N+X end,
    Reverse = fun (_,X,L) -> [X|L] end,
    Vals = fun(_K,undefined,{C,L}) -> {C+1,L};
	      (K,X,{C,L}) -> {C,[K+X|L]} 
	   end,
    [?_assertError(badarg, foldl([], 0, new())),
     ?_assertError(badarg, foldl([], 0, new(10))),
     ?_assert(foldl(Count, 0, new()) =:= 0),
     ?_assert(foldl(Count, 0, new(1)) =:= 1),
     ?_assert(foldl(Count, 0, new(10)) =:= 10),
     ?_assert(foldl(Count, 0, from_list([1,2,3,4])) =:= 4),
     ?_assert(foldl(Count, 10, from_list([0,1,2,3,4,5,6,7,8,9])) =:= 20),
     ?_assert(foldl(Count, 1000, from_list(lists:seq(0,999))) =:= 2000),
     ?_assert(foldl(Sum, 0, from_list(lists:seq(0,10))) =:= 55),
     ?_assert(foldl(Reverse, [], from_list(lists:seq(0,1000)))
	      =:= lists:reverse(lists:seq(0,1000))),
     ?_assert({999,[N0*100+1+2,N0*2+1+1,0]} =:= 
	      foldl(Vals, {0,[]}, 
		    set(N0*100+1,2,
			set(N0*2+1,1,
			    set(0,0,new())))))
     
    ].

sparse_foldl_test_() ->
    N0 = ?LEAFSIZE,
    Count = fun (_,_,N) -> N+1 end,
    Sum = fun (_,X,N) -> N+X end,
    Reverse = fun (_,X,L) -> [X|L] end,
    Vals = fun(_K,undefined,{C,L}) -> {C+1,L};
	      (K,X,{C,L}) -> {C,[K+X|L]} 
	   end,
    [?_assertError(badarg, sparse_foldl([], 0, new())),
     ?_assertError(badarg, sparse_foldl([], 0, new(10))),
     ?_assert(sparse_foldl(Count, 0, new()) =:= 0),
     ?_assert(sparse_foldl(Count, 0, new(1)) =:= 0),
     ?_assert(sparse_foldl(Count, 0, new(10,{default,1})) =:= 0),
     ?_assert(sparse_foldl(Count, 0, from_list([0,1,2,3,4],0)) =:= 4),
     ?_assert(sparse_foldl(Count, 0, from_list([0,1,2,3,4,5,6,7,8,9,0],0))
	      =:= 9),
     ?_assert(sparse_foldl(Count, 0, from_list(lists:seq(0,999),0))
	      =:= 999),
     ?_assert(sparse_foldl(Sum, 0, from_list(lists:seq(0,10), 5)) =:= 50),
     ?_assert(sparse_foldl(Reverse, [], from_list(lists:seq(0,1000), 0))
	      =:= lists:reverse(lists:seq(1,1000))),
     ?_assert({0,[N0*100+1+2,N0*2+1+1,0]} =:= 
	      sparse_foldl(Vals, {0,[]}, 
			   set(N0*100+1,2,
			       set(N0*2+1,1,
				   set(0,0,new())))))
    ].

foldr_test_() ->
    N0 = ?LEAFSIZE,
    Count = fun (_,_,N) -> N+1 end,
    Sum = fun (_,X,N) -> N+X end,
    List = fun (_,X,L) -> [X|L] end,
    Vals = fun(_K,undefined,{C,L}) -> {C+1,L};
	      (K,X,{C,L}) -> {C,[K+X|L]} 
	   end,
    [?_assertError(badarg, foldr([], 0, new())),
     ?_assertError(badarg, foldr([], 0, new(10))),
     ?_assert(foldr(Count, 0, new()) =:= 0),
     ?_assert(foldr(Count, 0, new(1)) =:= 1),
     ?_assert(foldr(Count, 0, new(10)) =:= 10),
     ?_assert(foldr(Count, 0, from_list([1,2,3,4])) =:= 4),
     ?_assert(foldr(Count, 10, from_list([0,1,2,3,4,5,6,7,8,9])) =:= 20),
     ?_assert(foldr(Count, 1000, from_list(lists:seq(0,999))) =:= 2000),
     ?_assert(foldr(Sum, 0, from_list(lists:seq(0,10))) =:= 55),
     ?_assert(foldr(List, [], from_list(lists:seq(0,1000)))
 	      =:= lists:seq(0,1000)),
     ?_assert({999,[0,N0*2+1+1,N0*100+1+2]} =:= 
	      foldr(Vals, {0,[]}, 
		    set(N0*100+1,2,
			set(N0*2+1,1,
			    set(0,0,new())))))
     
    ].

sparse_foldr_test_() ->
    N0 = ?LEAFSIZE,
    Count = fun (_,_,N) -> N+1 end,
    Sum = fun (_,X,N) -> N+X end,
    List = fun (_,X,L) -> [X|L] end,
    Vals = fun(_K,undefined,{C,L}) -> {C+1,L};
	      (K,X,{C,L}) -> {C,[K+X|L]} 
	   end,
    [?_assertError(badarg, sparse_foldr([], 0, new())),
     ?_assertError(badarg, sparse_foldr([], 0, new(10))),
     ?_assert(sparse_foldr(Count, 0, new()) =:= 0),
     ?_assert(sparse_foldr(Count, 0, new(1)) =:= 0),
     ?_assert(sparse_foldr(Count, 0, new(10,{default,1})) =:= 0),
     ?_assert(sparse_foldr(Count, 0, from_list([0,1,2,3,4],0)) =:= 4),
     ?_assert(sparse_foldr(Count, 0, from_list([0,1,2,3,4,5,6,7,8,9,0],0))
	      =:= 9),
     ?_assert(sparse_foldr(Count, 0, from_list(lists:seq(0,999),0))
	      =:= 999),
     ?_assert(sparse_foldr(Sum, 0, from_list(lists:seq(0,10),5)) =:= 50),
     ?_assert(sparse_foldr(List, [], from_list(lists:seq(0,1000),0))
 	      =:= lists:seq(1,1000)),

     ?_assert(sparse_size(new()) =:= 0),
     ?_assert(sparse_size(new(8)) =:= 0),
     ?_assert(sparse_size(array:set(7, 0, new())) =:= 8),
     ?_assert(sparse_size(array:set(7, 0, new(10))) =:= 8),
     ?_assert(sparse_size(array:set(99, 0, new(10,{fixed,false})))
	      =:= 100),
     ?_assert(sparse_size(array:set(7, undefined, new())) =:= 0),
     ?_assert(sparse_size(array:from_list([1,2,3,undefined])) =:= 3),
     ?_assert(sparse_size(array:from_orddict([{3,0},{17,0},{99,undefined}]))
			  =:= 18),
     ?_assert({0,[0,N0*2+1+1,N0*100+1+2]} =:= 
	      sparse_foldr(Vals, {0,[]}, 
			   set(N0*100+1,2,
			       set(N0*2+1,1,
				   set(0,0,new())))))     
    ].

new_test(doc) -> [];
new_test(suite) -> [];
new_test(Config) when is_list(Config) -> new_test_(), ok.
fix_test(doc) -> [];
fix_test(suite) -> [];
fix_test(Config) when is_list(Config) -> fix_test_(), ok.
relax_test(doc) -> [];
relax_test(suite) -> [];
relax_test(Config) when is_list(Config) -> relax_test_(), ok.
resize_test(doc) -> [];
resize_test(suite) -> [];
resize_test(Config) when is_list(Config) -> resize_test_(), ok.
set_get_test(doc) -> [];
set_get_test(suite) -> [];
set_get_test(Config) when is_list(Config) -> set_get_test_(), ok.
to_list_test(doc) -> [];
to_list_test(suite) -> [];
to_list_test(Config) when is_list(Config) -> to_list_test_(), ok.
sparse_to_list_test(doc) -> [];
sparse_to_list_test(suite) -> [];
sparse_to_list_test(Config) when is_list(Config) -> sparse_to_list_test_(), ok.
from_list_test(doc) -> [];
from_list_test(suite) -> [];
from_list_test(Config) when is_list(Config) -> from_list_test_(), ok.
to_orddict_test(doc) -> [];
to_orddict_test(suite) -> [];
to_orddict_test(Config) when is_list(Config) -> to_orddict_test_(), ok.
sparse_to_orddict_test(doc) -> [];
sparse_to_orddict_test(suite) -> [];
sparse_to_orddict_test(Config) when is_list(Config) -> sparse_to_orddict_test_(), ok.
from_orddict_test(doc) -> [];
from_orddict_test(suite) -> [];
from_orddict_test(Config) when is_list(Config) -> from_orddict_test_(), ok.
map_test(doc) -> [];
map_test(suite) -> [];
map_test(Config) when is_list(Config) -> map_test_(), ok.
sparse_map_test(doc) -> [];
sparse_map_test(suite) -> [];
sparse_map_test(Config) when is_list(Config) -> sparse_map_test_(), ok.
foldl_test(doc) -> [];
foldl_test(suite) -> [];
foldl_test(Config) when is_list(Config) -> foldl_test_(), ok.
sparse_foldl_test(doc) -> [];
sparse_foldl_test(suite) -> [];
sparse_foldl_test(Config) when is_list(Config) -> sparse_foldl_test_(), ok.
foldr_test(doc) -> [];
foldr_test(suite) -> [];
foldr_test(Config) when is_list(Config) -> foldr_test_(), ok.
sparse_foldr_test(doc) -> [];
sparse_foldr_test(suite) -> [];
sparse_foldr_test(Config) when is_list(Config) -> sparse_foldr_test_(), ok.