%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2006-2013. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%% Originally based on Per Gustafsson's test suite.
%%
-module(bs_bincomp_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
byte_aligned/1,bit_aligned/1,extended_byte_aligned/1,
extended_bit_aligned/1,mixed/1,filters/1,trim_coverage/1,
nomatch/1,sizes/1]).
-include_lib("common_test/include/ct.hrl").
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
test_lib:recompile(?MODULE),
[byte_aligned, bit_aligned, extended_byte_aligned,
extended_bit_aligned, mixed, filters, trim_coverage,
nomatch, sizes].
groups() ->
[].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
byte_aligned(Config) when is_list(Config) ->
cs_init(),
<<"abcdefg">> = cs(<< <<(X+32)>> || <<X>> <= <<"ABCDEFG">> >>),
<<1:32/little,2:32/little,3:32/little,4:32/little>> =
cs(<< <<X:32/little>> || <<X:32>> <= <<1:32,2:32,3:32,4:32>> >>),
cs(<<1:32/little,2:32/little,3:32/little,4:32/little>> =
<< <<X:32/little>> || <<X:16>> <= <<1:16,2:16,3:16,4:16>> >>),
cs_end().
bit_aligned(Config) when is_list(Config) ->
cs_init(),
<<$a:7,$b:7,$c:7,$d:7,$e:7,$f:7,$g:7>> =
cs(<< <<(X+32):7>> || <<X>> <= <<"ABCDEFG">> >>),
<<"ABCDEFG">> =
cs(<< <<(X-32)>> || <<X:7>> <= <<$a:7,$b:7,$c:7,$d:7,$e:7,$f:7,$g:7>> >>),
<<1:31/little,2:31/little,3:31/little,4:31/little>> =
cs(<< <<X:31/little>> || <<X:31>> <= <<1:31,2:31,3:31,4:31>> >>),
<<1:31/little,2:31/little,3:31/little,4:31/little>> =
cs(<< <<X:31/little>> || <<X:15>> <= <<1:15,2:15,3:15,4:15>> >>),
cs_end().
extended_byte_aligned(Config) when is_list(Config) ->
cs_init(),
<<"abcdefg">> = cs(<< <<(X+32)>> || X <- "ABCDEFG" >>),
"abcdefg" = [(X+32) || <<X>> <= <<"ABCDEFG">>],
<<1:32/little,2:32/little,3:32/little,4:32/little>> =
cs(<< <<X:32/little>> || X <- [1,2,3,4] >>),
[256,512,768,1024] =
[X || <<X:16/little>> <= <<1:16,2:16,3:16,4:16>>],
cs_end().
extended_bit_aligned(Config) when is_list(Config) ->
cs_init(),
<<$a:7,$b:7,$c:7,$d:7,$e:7,$f:7,$g:7>> =
cs(<< <<(X+32):7>> || X <- "ABCDEFG" >>),
"ABCDEFG" = [(X-32) || <<X:7>> <= <<$a:7,$b:7,$c:7,$d:7,$e:7,$f:7,$g:7>>],
<<1:31/little,2:31/little,3:31/little,4:31/little>> =
cs(<< <<X:31/little>> || X <- [1,2,3,4] >>),
[256,512,768,1024] =
[X || <<X:15/little>> <= <<1:15,2:15,3:15,4:15>>],
cs_end().
mixed(Config) when is_list(Config) ->
cs_init(),
<<2,3,3,4,4,5,5,6>> =
cs(<< <<(X+Y)>> || <<X>> <= <<1,2,3,4>>, <<Y>> <= <<1,2>> >>),
<<2,3,3,4,4,5,5,6>> =
<< <<(X+Y)>> || <<X>> <= <<1,2,3,4>>, Y <- [1,2] >>,
<<2,3,3,4,4,5,5,6>> =
cs(<< <<(X+Y)>> || X <- [1,2,3,4], Y <- [1,2] >>),
One = id([1,2,3,4]),
Two = id([1,2]),
<<2,3,3,4,4,5,5,6>> =
cs(<< <<(X+Y)>> || X <- One, Y <- Two >>),
[2,3,3,4,4,5,5,6] =
[(X+Y) || <<X>> <= <<1,2,3,4>>, <<Y>> <= <<1,2>>],
[2,3,3,4,4,5,5,6] =
[(X+Y) || <<X>> <= <<1,2,3,4>>, Y <- [1,2]],
<<2:3,3:3,3:3,4:3,4:3,5:3,5:3,6:3>> =
cs(<< <<(X+Y):3>> || <<X:3>> <= <<1:3,2:3,3:3,4:3>>,
<<Y:3>> <= <<1:3,2:3>> >>),
<<2:3,3:3,3:3,4:3,4:3,5:3,5:3,6:3>> =
cs(<< <<(X+Y):3>> || <<X:3>> <= <<1:3,2:3,3:3,4:3>>, Y <- [1,2] >>),
<<2:3,3:3,3:3,4:3,4:3,5:3,5:3,6:3>> =
cs(<< <<(X+Y):3>> || X <- [1,2,3,4], Y <- [1,2] >>),
<<2:3,3:3,3:3,4:3,4:3,5:3,5:3,6:3>> =
cs_default(<< <<(X+Y):3>> || {X,Y} <- [{1,1},{1,2},{2,1},{2,2},
{3,1},{3,2},{4,1},{4,2}] >>),
[2,3,3,4,4,5,5,6] =
[(X+Y) || <<X:3>> <= <<1:3,2:3,3:3,4:3>>, <<Y:3>> <= <<1:3,2:3>>],
[2,3,3,4,4,5,5,6] =
[(X+Y) || <<X:3>> <= <<1:3,2:3,3:3,4:3>>, {_,Y} <- [{a,1},{b,2}]],
cs_end().
filters(Config) when is_list(Config) ->
cs_init(),
<<"BDF">> =
cs_default(<< <<(X-32)>> ||
<<X:7>> <= <<$a:7,$b:7,$c:7,$d:7,$e:7,$f:7,$g:7>>,
X rem 2 == 0>>),
<<"abc">> = cs_default(<< <<(X+32)>> ||
X <- "ABCDEFG",
is_less_than(X, $D)>>),
<<"efg">> = cs_default(<< <<(X+32)>> ||
X <- "ABCDEFG",
not is_less_than(X, $E)>>),
<<"b">> = cs_default(<< <<(X+32)>> ||
X <- "ABCDEFG",
is_less_than(X, $D),
X rem 2 == 0>>),
<<"eg">> = cs_default(<< <<(X+32)>> ||
X <- "ABCDEFG",
not is_less_than(X, $E),
X rem 2 == 1>>),
%% Filtering by a non-matching pattern.
<<"abd">> = cs_default(<< <<X:8>> ||
<<0:1,X:7>> <= <<$a:8,$b:8,1:1,$c:7,$d:8,
1:1,$e:7,0:4>> >>),
<<42,42>> = cs_default(<< <<42:8>> || 42 <- [1,2,3,42,43,42] >>),
cs_end().
is_less_than(X, C) when X < C -> true;
is_less_than(_, _) -> false.
trim_coverage(Config) when is_list(Config) ->
<<0,0,0,2,0,0,5,48,0,11,219,174,0,0,0,0>> = coverage_materialiv(a, b, {1328,777134}),
<<67,40,0,0,66,152,0,0,69,66,64,0>> = coverage_trimmer([42,19,777]),
<<0,0,2,43,0,0,3,9,0,0,0,3,64,8,0,0,0,0,0,0,
64,68,0,0,0,0,0,0,192,171,198,0,0,0,0,0>> =
coverage_lightfv(555, 777, {3.0,40.0,-3555.0}),
ok.
coverage_materialiv(A, B, Params) ->
A = id(A),
B = id(B),
<<(tuple_size(Params)):32,
(<< <<C:32>> || C <- tuple_to_list(Params)>>)/binary,
0:(((1+tuple_size(Params)) rem 2)*32)>>.
coverage_lightfv(Light, Pname, Params) ->
id(<<Light:32,Pname:32,(size(Params)):32,
(<< <<C:64/float>> || C <- tuple_to_list(Params)>>)/binary,
0:(((1+size(Params)) rem 2)*32)>>).
coverage_trimmer(Params) ->
X = id(0),
Y = id(1),
id({X,Y}),
<< <<(begin {A,B,D} = id({C,C,C}), id(0),
coverage_summer(A, B, C, D) end):32/float>> ||
C <- Params >>.
coverage_summer(A, B, C, D) -> A+B+C+D.
nomatch(Config) when is_list(Config) ->
<<>> = << <<X:8>> || X = {_,_} = [_|_] <- [1,2,3] >>,
ok.
sizes(Config) when is_list(Config) ->
cs_init(),
Fun0 = fun(List) ->
cs(<< <<E:8>> || E <- List >>)
end,
<<>> = Fun0([]),
<<1>> = Fun0([1]),
<<1,2>> = Fun0([1,2]),
<<1,2,3>> = Fun0([1,2,3]),
Fun1 = fun(List) ->
cs(<< <<E:16>> || E <- List >>)
end,
<<>> = Fun1([]),
<<1:16>> = Fun1([1]),
<<1:16,2:16>> = Fun1([1,2]),
<<1:16,2:16,3:16>> = Fun1([1,2,3]),
Fun2 = fun(List) ->
cs(<< <<E:4>> || E <- List >>)
end,
<<>> = Fun2([]),
<<1:4>> = Fun2([1]),
<<1:4,13:4>> = Fun2([1,13]),
<<1:4,13:4,7:4>> = Fun2([1,13,7]),
<<0:1000/unit:8>> = Fun2(lists:duplicate(2000, 0)),
Fun3 = fun(List) ->
cs(<< <<E:3>> || E <- List >>)
end,
<<>> = Fun3([]),
<<40,177,29:5>> = Fun3([1,2,1,3,0,7,5]),
<<0:512/unit:3>> = Fun3(lists:duplicate(512, 0)),
Fun4 = fun(List, Size) ->
cs(<< <<E:Size>> || E <- List >>)
end,
<<>> = Fun4([], 8),
<<42:6>> = Fun4([42], 6),
<<42:16>> = Fun4([42], 16),
Fun5 = fun(List, Sz1, Sz2, Sz3) ->
cs(<< <<E:Sz1,(E+1):Sz2/unit:8,(E+2):Sz3/unit:8>> || E <- List >>)
end,
<<>> = Fun5([], 1, 1, 1),
<<7:3,8:40,9:56>> = Fun5([7], 3, 5, 7),
Fun6 = fun(List, Size) ->
cs(<< <<E:8,(E+1):Size>> || E <- List >>)
end,
<<>> = Fun6([], 42),
<<42,43:20>> = Fun6([42], 20),
%% Binary generators.
Fun10 = fun(Bin) ->
cs(<< <<E:16>> || <<E:8>> <= Bin >>)
end,
<<>> = Fun10(<<>>),
<<1:16>> = Fun10(<<1>>),
<<1:16,2:16>> = Fun10(<<1,2>>),
Fun11 = fun(Bin) ->
cs(<< <<E:8>> || <<E:16>> <= Bin >>)
end,
<<>> = Fun11(<<>>),
<<1>> = Fun11(<<1:16>>),
<<1,2>> = Fun11(<<1:16,2:16>>),
<<1,2>> = Fun11(<<1:16,2:16,0:1>>),
<<1,2>> = Fun11(<<1:16,2:16,0:7>>),
<<1,2>> = Fun11(<<1:16,2:16,42:8>>),
<<1,2>> = Fun11(<<1:16,2:16,42:9>>),
<<1,2>> = Fun11(<<1:16,2:16,255:15>>),
Fun12 = fun(Bin, Sz1, Sz2) ->
cs(<< <<E:Sz1>> || <<E:Sz2>> <= Bin >>)
end,
<<>> = Fun12(<<>>, 1, 1),
Binary = list_to_binary(lists:seq(0, 255)),
Binary = Fun12(Binary, 1, 1),
Binary = Fun12(Binary, 4, 4),
Binary = Fun12(Binary, 8, 8),
<<17:9,19:9>> = Fun12(<<17:6,19:6>>, 9, 6),
Fun13 = fun(Sz) ->
cs_default(<< <<C:8>> || <<C:4>> <= <<1:4,2:4,3:4,0:Sz>> >>)
end,
<<1,2,3>> = Fun13(0),
<<1,2,3,0>> = Fun13(4),
<<1,2,3,0>> = Fun13(5),
<<1,2,3,0>> = Fun13(6),
<<1,2,3,0>> = Fun13(7),
<<1,2,3,0,0>> = Fun13(8),
<<0:3>> = cs_default(<< <<0:S>> || S <- [0,1,2] >>),
<<0:3>> = cs_default(<< <<0:S>> || <<S>> <= <<0,1,2>> >>),
{'EXIT',_} = (catch << <<C:4>> || <<C:8>> <= {1,2,3} >>),
cs_end(),
ok.
cs_init() ->
erts_debug:set_internal_state(available_internal_state, true),
ok.
cs_end() ->
erts_debug:set_internal_state(available_internal_state, false),
ok.
%% Verify that the allocated size is exact (rounded up to the nearest byte).
cs(Bin) ->
ByteSize = byte_size(Bin),
{refc_binary,ByteSize,{binary,ByteSize},_} =
erts_debug:get_internal_state({binary_info,Bin}),
Bin.
%% Verify that the allocated size of the binary is the default size.
cs_default(Bin) ->
ByteSize = byte_size(Bin),
{refc_binary,ByteSize,{binary,256},_} =
erts_debug:get_internal_state({binary_info,Bin}),
Bin.
id(I) -> I.
