diff options
Diffstat (limited to 'erts/emulator/test/bs_construct_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/bs_construct_SUITE.erl | 101 |
1 files changed, 87 insertions, 14 deletions
diff --git a/erts/emulator/test/bs_construct_SUITE.erl b/erts/emulator/test/bs_construct_SUITE.erl index 7fdf36711b..123952d01d 100644 --- a/erts/emulator/test/bs_construct_SUITE.erl +++ b/erts/emulator/test/bs_construct_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2011. All Rights Reserved. +%% Copyright Ericsson AB 1999-2012. 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 @@ -28,7 +28,7 @@ mem_leak/1, coerce_to_float/1, bjorn/1, huge_float_field/1, huge_binary/1, system_limit/1, badarg/1, copy_writable_binary/1, kostis/1, dynamic/1, bs_add/1, - otp_7422/1, zero_width/1]). + otp_7422/1, zero_width/1, bad_append/1]). -include_lib("test_server/include/test_server.hrl"). @@ -38,7 +38,8 @@ all() -> [test1, test2, test3, test4, test5, testf, not_used, in_guard, mem_leak, coerce_to_float, bjorn, huge_float_field, huge_binary, system_limit, badarg, - copy_writable_binary, kostis, dynamic, bs_add, otp_7422, zero_width]. + copy_writable_binary, kostis, dynamic, bs_add, otp_7422, zero_width, + bad_append]. groups() -> []. @@ -460,7 +461,6 @@ mem_leak(0, _) -> ok; mem_leak(N, B) -> ?line big_bin(B, <<23>>), ?line {'EXIT',{badarg,_}} = (catch big_bin(B, bad)), - maybe_gc(), mem_leak(N-1, B). big_bin(B1, B2) -> @@ -473,13 +473,6 @@ big_bin(B1, B2) -> make_bin(0, Acc) -> Acc; make_bin(N, Acc) -> make_bin(N-1, <<Acc/binary,Acc/binary>>). -maybe_gc() -> - case erlang:system_info(heap_type) of - shared -> erlang:garbage_collect(); - hybrid -> erlang:garbage_collect(); - private -> ok - end. - -define(COF(Int0), ?line (fun(Int) -> true = <<Int:32/float>> =:= <<(float(Int)):32/float>>, @@ -554,11 +547,47 @@ huge_float_check({'EXIT',{badarg,_}}) -> ok. huge_binary(Config) when is_list(Config) -> ?line 16777216 = size(<<0:(id(1 bsl 26)),(-1):(id(1 bsl 26))>>), ?line garbage_collect(), - ?line id(<<0:((1 bsl 32)-1)>>), + {Shift,Return} = case free_mem() of + undefined -> {32,ok}; + Mb when Mb > 600 -> {32,ok}; + Mb when Mb > 300 -> {31,"Limit huge binaries to 256 Mb"}; + _ -> {30,"Limit huge binary to 128 Mb"} + end, ?line garbage_collect(), - ?line id(<<0:(id((1 bsl 32)-1))>>), + ?line id(<<0:((1 bsl Shift)-1)>>), ?line garbage_collect(), - ok. + ?line id(<<0:(id((1 bsl Shift)-1))>>), + ?line garbage_collect(), + case Return of + ok -> ok; + Comment -> {comment, Comment} + end. + +free_mem() -> + Cmd = "uname; free", + Output = string:tokens(os:cmd(Cmd), "\n"), + io:format("Output from command ~p\n~p\n",[Cmd,Output]), + case Output of + [OS, ColumnNames, Values | _] -> + case string:str(OS,"Linux") of + 0 -> + io:format("Unknown OS\n",[]), + undefined; + _ -> + case {string:tokens(ColumnNames, " \t"), + string:tokens(Values, " \t")} of + {[_,_,"free"|_],["Mem:",_,_,FreeKb|_]} -> + list_to_integer(FreeKb) div 1024; + _ -> + io:format("Failed to parse output from 'free':\n",[]), + undefined + end + end; + _ -> + io:format("Too few lines in output\n",[]), + undefined + end. + system_limit(Config) when is_list(Config) -> WordSize = erlang:system_info(wordsize), @@ -835,5 +864,49 @@ zero_width(Config) when is_list(Config) -> ?line {'EXIT',{badarg,_}} = (catch <<(id(not_a_number)):0>>), ok. + +bad_append(_) -> + do_bad_append(<<127:1>>, fun append_unit_3/1), + do_bad_append(<<127:2>>, fun append_unit_3/1), + do_bad_append(<<127:17>>, fun append_unit_3/1), + + do_bad_append(<<127:3>>, fun append_unit_4/1), + do_bad_append(<<127:5>>, fun append_unit_4/1), + do_bad_append(<<127:7>>, fun append_unit_4/1), + do_bad_append(<<127:199>>, fun append_unit_4/1), + + do_bad_append(<<127:7>>, fun append_unit_8/1), + do_bad_append(<<127:9>>, fun append_unit_8/1), + + do_bad_append(<<0:8>>, fun append_unit_16/1), + do_bad_append(<<0:15>>, fun append_unit_16/1), + do_bad_append(<<0:17>>, fun append_unit_16/1), + ok. + +do_bad_append(Bin0, Appender) -> + {'EXIT',{badarg,_}} = (catch Appender(Bin0)), + + Bin1 = id(<<0:3,Bin0/bitstring>>), + <<_:3,Bin2/bitstring>> = Bin1, + {'EXIT',{badarg,_}} = (catch Appender(Bin2)), + + %% Create a writable binary. + Empty = id(<<>>), + Bin3 = <<Empty/bitstring,Bin0/bitstring>>, + {'EXIT',{badarg,_}} = (catch Appender(Bin3)), + ok. + +append_unit_3(Bin) -> + <<Bin/binary-unit:3,0:1>>. + +append_unit_4(Bin) -> + <<Bin/binary-unit:4,0:1>>. + +append_unit_8(Bin) -> + <<Bin/binary,0:1>>. + +append_unit_16(Bin) -> + <<Bin/binary-unit:16,0:1>>. + id(I) -> I. |