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Diffstat (limited to 'lib/debugger/test/bs_construct_SUITE.erl')
| -rw-r--r-- | lib/debugger/test/bs_construct_SUITE.erl | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/lib/debugger/test/bs_construct_SUITE.erl b/lib/debugger/test/bs_construct_SUITE.erl new file mode 100644 index 0000000000..efc125c582 --- /dev/null +++ b/lib/debugger/test/bs_construct_SUITE.erl @@ -0,0 +1,432 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2000-2010. 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(bs_construct_SUITE). + +-export([all/1,init_per_testcase/2,fin_per_testcase/2,init_all/1,finish_all/1, + test1/1, test2/1, test3/1, test4/1, test5/1, testf/1, not_used/1, in_guard/1, + coerce_to_float/1]). + +-include("test_server.hrl"). + +all(suite) -> + [{conf,init_all,cases(),finish_all}]. + +cases() -> + [test1, test2, test3, test4, test5, testf, + not_used, in_guard, coerce_to_float]. + +init_per_testcase(_Case, Config) -> + test_lib:interpret(?MODULE), + Dog = test_server:timetrap(?t:minutes(1)), + [{watchdog,Dog}|Config]. + +fin_per_testcase(_Case, Config) -> + Dog = ?config(watchdog, Config), + ?t:timetrap_cancel(Dog), + ok. + +init_all(Config) when is_list(Config) -> + ?line test_lib:interpret(?MODULE), + ?line true = lists:member(?MODULE, int:interpreted()), + ok. + +finish_all(Config) when is_list(Config) -> + ok. + +big(1) -> + 57285702734876389752897683. + +i(X) -> X. + +r(L) -> + lists:reverse(L). + +-define(T(B, L), {B, ??B, L}). +-define(N(B), {B, ??B, unknown}). + +-define(FAIL(Expr), ?line {'EXIT',{badarg,_}} = (catch Expr)). + +l(I_13, I_big1) -> + [ + ?T(<<-43>>, + [256-43]), + ?T(<<56>>, + [56]), + ?T(<<1,2>>, + [1, 2]), + ?T(<<4:4, 7:4>>, + [4*16+7]), + ?T(<<777:16/big>>, + [3, 9]), + ?T(<<777:16/little>>, + [9, 3]), + ?T(<<0.0:32/float>>, + [0,0,0,0]), + ?T(<<0.125:32/float>>, + [62,0,0,0]), + ?T(<<0.125:32/little-float>>, + [0,0,0,62]), + ?T(<<I_big1:32>>, + [138, 99, 0, 147]), + ?T(<<57285702734876389752897684:32>>, + [138, 99, 0, 148]), + ?T(<<I_big1:32/little>>, + r([138, 99, 0, 147])), + ?T(<<-1:17/unit:8>>, + lists:duplicate(17, 255)), + + ?T(<<I_13>>, + [13]), + + ?T(<<4:8/unit:2,5:2/unit:8>>, + [0, 4, 0, 5]), + + ?T(<<1:1, 0:6, 1:1>>, + [129]), + ?T(<<1:1/little, 0:6/little, 1:1/little>>, + [129]), + + ?T(<<<<1,2>>/binary>>, + [1, 2]), + ?T(<<<<1,2>>:1/binary>>, + [1]), + ?T(<<4,3,<<1,2>>:1/binary>>, + [4,3,1]), + + ?T(<<(256*45+47)>>, + [47]), + + ?T(<<57:0>>, + []), + + ?T(<<"apa">>, + "apa"), + + ?T(<<1:3,"string",9:5>>, + [46,110,142,77,45,204,233]), + + ?T(<<>>, + []), + + ?T(<<37.98:64/native-float>>, + native_3798()), + + ?T(<<32978297842987249827298387697777669766334937:128/native-integer>>, + native_bignum()) + + ]. + +native_3798() -> + case <<1:16/native>> of + <<0,1>> -> [64,66,253,112,163,215,10,61]; + <<1,0>> -> [61,10,215,163,112,253,66,64] + end. + +native_bignum() -> + case <<1:16/native>> of + <<0,1>> -> [129,205,18,177,1,213,170,101,39,231,109,128,176,11,73,217]; + <<1,0>> -> [217,73,11,176,128,109,231,39,101,170,213,1,177,18,205,129] + end. + +evaluate(Str, Vars) -> + {ok,Tokens,_} = + erl_scan:string(Str ++ " . "), + {ok, [Expr]} = erl_parse:parse_exprs(Tokens), + case erl_eval:expr(Expr, Vars) of + {value, Result, _} -> + Result + end. + +eval_list([], _Vars) -> + []; +eval_list([{C_bin, Str, Bytes} | Rest], Vars) -> + case catch evaluate(Str, Vars) of + {'EXIT', Error} -> + io:format("Evaluation error: ~p, ~p, ~p~n", [Str, Vars, Error]), + exit(Error); + E_bin -> + [{C_bin, E_bin, Str, Bytes} | eval_list(Rest, Vars)] + end. + +one_test({C_bin, E_bin, Str, Bytes}) when list(Bytes) -> + io:format(" ~s, ~p~n", [Str, Bytes]), + Bin = list_to_binary(Bytes), + if + C_bin == Bin -> + ok; + true -> + io:format("ERROR: Compiled: ~p. Expected ~p. Got ~p.~n", + [Str, Bytes, binary_to_list(C_bin)]), + test_server:fail(comp) + end, + if + E_bin == Bin -> + ok; + true -> + io:format("ERROR: Interpreted: ~p. Expected ~p. Got ~p.~n", + [Str, Bytes, binary_to_list(E_bin)]), + test_server:fail(comp) + end; +one_test({C_bin, E_bin, Str, Result}) -> + io:format(" ~s ~p~n", [Str, C_bin]), + if + C_bin == E_bin -> + ok; + true -> + Arbitrary = case Result of + unknown -> + size(C_bin); + _ -> + Result + end, + case equal_lists(binary_to_list(C_bin), + binary_to_list(E_bin), + Arbitrary) of + false -> + io:format("ERROR: Compiled not equal to interpreted:" + "~n ~p, ~p.~n", + [binary_to_list(C_bin), binary_to_list(E_bin)]), + test_server:fail(comp); + 0 -> + ok; + %% For situations where the final bits may not matter, like + %% for floats: + N when integer(N) -> + io:format("Info: compiled and interpreted differ in the" + " last bytes:~n ~p, ~p.~n", + [binary_to_list(C_bin), binary_to_list(E_bin)]), + ok + end + end. + +equal_lists([], [], _) -> + 0; +equal_lists([], _, _) -> + false; +equal_lists(_, [], _) -> + false; +equal_lists([A|AR], [A|BR], R) -> + equal_lists(AR, BR, R); +equal_lists(A, B, R) -> + if + length(A) /= length(B) -> + false; + length(A) =< R -> + R; + true -> + false + end. + +%%% Simple working cases +test1(suite) -> []; +test1(Config) when list(Config) -> + ?line I_13 = i(13), + ?line I_big1 = big(1), + ?line Vars = [{'I_13', I_13}, + {'I_big1', I_big1}], + ?line lists:foreach(fun one_test/1, eval_list(l(I_13, I_big1), Vars)). + +%%% Misc + +%%% <<A:S, A:(N-S)>> +comp(N, A, S) -> + M1 = (1 bsl S) - 1, + M2 = (1 bsl (N-S)) - 1, + [((A band M1) bsl (N-S)) bor (A band M2)]. + +gen(N, S, A) -> + [?T(<<A:S, A:(N-S)>>, comp(N, A, S))]. + +gen_l(N, S, A) -> + [?T(<<A:S/little, A:(N-S)/little>>, comp(N, A, S))]. + +test2(suite) -> []; +test2(Config) when list(Config) -> + ?line test2(0, 8, 2#10101010101010101), + ?line test2(0, 8, 2#1111111111). + +test2(End, End, _) -> + ok; +test2(I, End, A) -> + test2(I, A), + test2(I+1, End, A). + +test2(S, A) -> + N = 8, + Vars = [{'A',A}, {'N',N}, {'S',S}], + io:format("Vars: ~p\n", [Vars]), + lists:foreach(fun one_test/1, eval_list(gen(N, S, A), Vars)), + lists:foreach(fun one_test/1, eval_list(gen_l(N, S, A), Vars)). + +%%% Tests without facit + +t3() -> + [?N(<<4711:13, 9876:13, 3:6>>), + ?N(<<4.57:64/float>>), + ?N(<<4.57:32/float>>), + + ?N(<<>>) + ]. + +test3(suite) -> []; +test3(Config) when list(Config) -> + ?line Vars = [], + ?line lists:foreach(fun one_test/1, eval_list(t3(), Vars)). + +gen_u(N, S, A) -> + [?N(<<A:S, A:(N-S)>>)]. + +gen_u_l(N, S, A) -> + [?N(<<A:S/little, A:(N-S)/little>>)]. + +test4(suite) -> []; +test4(Config) when list(Config) -> + ?line test4(0, 16, 2#10101010101010101), + ?line test4(0, 16, 2#1111111111). + +test4(End, End, _) -> + ok; +test4(I, End, A) -> + test4(I, A), + test4(I+1, End, A). + +test4(S, A) -> + N = 16, + Vars = [{'A', A}, {'N', 16}, {'S', S}], + lists:foreach(fun one_test/1, eval_list(gen_u(N, S, A), Vars)), + lists:foreach(fun one_test/1, eval_list(gen_u_l(N, S, A), Vars)). + +gen_b(N, S, A) -> + [?T(<<A:S/binary-unit:1, A:(N-S)/binary-unit:1>>, + binary_to_list(<<A:S/binary-unit:1, A:(N-S)/binary-unit:1>>))]. + +test5(suite) -> []; +test5(doc) -> ["OTP-3995"]; +test5(Config) when list(Config) -> + ?line test5(0, 8, <<73>>), + ?line test5(0, 8, <<68>>). + +test5(End, End, _) -> + ok; +test5(I, End, A) -> + test5(I, A), + test5(I+1, End, A). + +test5(S, A) -> + N = 8, + Vars = [{'A', A}, {'N', 8}, {'S', S}], + lists:foreach(fun one_test/1, eval_list(gen_b(N, S, A), Vars)). + +%%% Failure cases +testf(suite) -> []; +testf(Config) when list(Config) -> + ?FAIL(<<3.14>>), + ?FAIL(<<<<1,2>>>>), + + ?FAIL(<<2.71/binary>>), + ?FAIL(<<24334/binary>>), + ?FAIL(<<24334344294788947129487129487219847/binary>>), + + ?FAIL(<<<<1,2,3>>/float>>), + + %% Negative field widths. + testf_1(-8, <<1,2,3,4,5>>), + + ?FAIL(<<42:(-16)>>), + ?FAIL(<<3.14:(-8)/float>>), + ?FAIL(<<<<23,56,0,2>>:(-16)/binary>>), + ?FAIL(<<<<23,56,0,2>>:(2.5)/binary>>), + ?FAIL(<<<<23,56,0,2>>:(anka)>>), + + ok. + +testf_1(W, B) -> + ?FAIL(<<42:W>>), + ?FAIL(<<3.14:W/float>>), + ?FAIL(<<B:W/binary>>). + +not_used(doc) -> + "Test that constructed binaries that are not used will still give an exception."; +not_used(Config) when is_list(Config) -> + ?line ok = not_used1(3, <<"dum">>), + ?line ?FAIL(not_used1(3, "dum")), + ?line ?FAIL(not_used2(444, -2)), + ?line ?FAIL(not_used2(444, anka)), + ?line ?FAIL(not_used3(444)), + ok. + +not_used1(I, BinString) -> + <<I:32,BinString/binary>>, + ok. + +not_used2(I, Sz) -> + <<I:Sz>>, + ok. + +not_used3(I) -> + <<I:(-8)>>, + ok. + +in_guard(Config) when list(Config) -> + ?line 1 = in_guard(<<16#74ad:16>>, 16#e95, 5), + ?line 2 = in_guard(<<16#3A,16#F7,"hello">>, 16#3AF7, <<"hello">>), + ?line 3 = in_guard(<<16#FBCD:14,3.1415/float,3:2>>, 16#FBCD, 3.1415), + nope = in_guard(<<1>>, 42, b), + nope = in_guard(<<1>>, a, b), + nope = in_guard(<<1,2>>, 1, 1), + nope = in_guard(<<4,5>>, 1, 2.71), + nope = in_guard(<<4,5>>, 1, <<12,13>>), + ok. + +in_guard(Bin, A, B) when <<A:13,B:3>> == Bin -> 1; +in_guard(Bin, A, B) when <<A:16,B/binary>> == Bin -> 2; +in_guard(Bin, A, B) when <<A:14,B/float,3:2>> == Bin -> 3; +in_guard(Bin, A, B) when {a,b,<<A:14,B/float,3:2>>} == Bin -> cant_happen; +in_guard(_, _, _) -> nope. + +-define(COF(Int0), + ?line (fun(Int) -> + true = <<Int:32/float>> =:= <<(float(Int)):32/float>>, + true = <<Int:64/float>> =:= <<(float(Int)):64/float>> + end)(nonliteral(Int0)), + ?line true = <<Int0:32/float>> =:= <<(float(Int0)):32/float>>, + ?line true = <<Int0:64/float>> =:= <<(float(Int0)):64/float>>). + +-define(COF64(Int0), + ?line (fun(Int) -> + true = <<Int:64/float>> =:= <<(float(Int)):64/float>> + end)(nonliteral(Int0)), + ?line true = <<Int0:64/float>> =:= <<(float(Int0)):64/float>>). + +nonliteral(X) -> X. + +coerce_to_float(Config) when list(Config) -> + ?COF(0), + ?COF(-1), + ?COF(1), + ?COF(42), + ?COF(255), + ?COF(-255), + ?COF(38474), + ?COF(387498738948729893849444444443), + ?COF(-37489378937773899999999999999993), + ?COF64(298748888888888888888888888883478264866528467367364766666666666666663), + ?COF64(-367546729879999999999947826486652846736736476555566666663), + ok. |