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author | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
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committer | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
commit | 84adefa331c4159d432d22840663c38f155cd4c1 (patch) | |
tree | bff9a9c66adda4df2106dfd0e5c053ab182a12bd /erts/emulator/test/nofrag_SUITE.erl | |
download | otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.gz otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.bz2 otp-84adefa331c4159d432d22840663c38f155cd4c1.zip |
The R13B03 release.OTP_R13B03
Diffstat (limited to 'erts/emulator/test/nofrag_SUITE.erl')
-rw-r--r-- | erts/emulator/test/nofrag_SUITE.erl | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/erts/emulator/test/nofrag_SUITE.erl b/erts/emulator/test/nofrag_SUITE.erl new file mode 100644 index 0000000000..ece55f433c --- /dev/null +++ b/erts/emulator/test/nofrag_SUITE.erl @@ -0,0 +1,208 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2007-2009. 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(nofrag_SUITE). + +-include("test_server.hrl"). + +-export([all/1,init_per_testcase/2,end_per_testcase/2, + error_handler/1,error_handler_apply/1, + error_handler_fixed_apply/1,error_handler_fun/1, + error_handler_tuple_fun/1, + debug_breakpoint/1]). + +%% Exported functions for an error_handler module. +-export([undefined_function/3,undefined_lambda/3,breakpoint/3]). + +all(suite) -> + [error_handler,error_handler_apply,error_handler_fixed_apply, + error_handler_fun,error_handler_tuple_fun,debug_breakpoint]. + +init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) -> + Dog = ?t:timetrap(?t:minutes(3)), + [{watchdog,Dog}|Config]. + +end_per_testcase(_Func, Config) -> + Dog = ?config(watchdog, Config), + ?t:timetrap_cancel(Dog). + +error_handler(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + %% The term_to_binary/1 - binary_to_term/1 roundtrip is a good way + %% to traverse the entire term. + ?line Term = collect(1024), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[a,b,c,d,[e,f,g]]] = lists:usort(Term), + ok. + +collect(0) -> + []; +collect(N) -> + %% The next line calls the error handle function, which is + %% ?MODULE:undefined_function/3 (it simply returns the list + %% of args, i.e. [a,b,c,d,[e,f,g]]). + C = fooblurf:x(a, b, c, d, [e,f,id(g)]), + + %% The variable C will be saved onto the stack frame; if C + %% points into a heap fragment the garbage collector will reach + %% it and the emulator will crash sooner or later (sooner if + %% the emulator is debug-compiled). + Res = collect(N-1), + [C|Res]. + +collect_apply(0, _) -> + []; +collect_apply(N, Mod) -> + %% The next line calls the error handle function, which is + %% ?MODULE:undefined_function/3 (it simply returns the list + %% of args). + + C = apply(Mod, xyz, id([{a,id(42)},b,c,d,[e,f,id(g)]])), + + %% The variable C will be saved onto the stack frame; if C + %% points into a heap fragment the garbage collector will reach + %% it and the emulator will crash sooner or later (sooner if + %% the emulator is debug-compiled). + Res = collect_apply(N-1, Mod), + [C|Res]. + +error_handler_apply(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + + %% The term_to_binary/1 - binary_to_term/1 roundtrip is a good way + %% to traverse the entire term. + ?line Term = collect_apply(1024, fooblurfbar), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[{a,42},b,c,d,[e,f,g]]] = lists:usort(Term), + ok. + +error_handler_fixed_apply(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + + %% The term_to_binary/1 - binary_to_term/1 roundtrip is a good way + %% to traverse the entire term. + ?line Term = collect_fixed_apply(1024, fooblurfbar), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[{a,2},b,c,d,[e,f,g]]] = lists:usort(Term), + ok. + +collect_fixed_apply(0, _) -> + []; +collect_fixed_apply(N, Mod) -> + %% The next line calls the error handle function, which is + %% ?MODULE:undefined_function/3 (it simply returns the list + %% of args). + C = Mod:x({a,id(2)}, b, c, d, [e,f,id(g)]), + + %% The variable C will be saved onto the stack frame; if C + %% points into a heap fragment the garbage collector will reach + %% it and the emulator will crash sooner or later (sooner if + %% the emulator is debug-compiled). + Res = collect_fixed_apply(N-1, Mod), + [C|Res]. + +undefined_function(_Mod, _Name, Args) -> + Args. + +error_handler_fun(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + + %% fun(A, B, C) -> {A,B,C,X} end in module foobarblurf. + B = <<131,112,0,0,0,84,3,109,96,69,208,5,175,207,75,36,93,112,218,232,222,22,251,0, + 0,0,0,0,0,0,1,100,0,11,102,111,111,98,97,114,98,108,117,114,102,97,0,98,5, + 244,197,144,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116, + 0,0,0,46,0,0,0,0,0,104,3,97,1,97,2,97,3>>, + ?line Fun = binary_to_term(B), + ?line Term = collect_fun(1024, Fun), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[{foo,bar},{99,1.0},[e,f,g]]] = lists:usort(Term), + ?line {env,[{1,2,3}]} = erlang:fun_info(Fun, env), + ok. + +collect_fun(0, _) -> + []; +collect_fun(N, Fun) -> + %% The next line calls the error handle function, which is + %% ?MODULE:undefined_lambda/3 (it simply returns the list + %% of args). + C = Fun({foo,id(bar)}, {99,id(1.0)}, [e,f,id(g)]), + + %% The variable C will be saved onto the stack frame; if C + %% points into a heap fragment the garbage collector will reach + %% it and the emulator will crash sooner or later (sooner if + %% the emulator is debug-compiled). + Res = collect_fun(N-1, Fun), + [C|Res]. + +undefined_lambda(foobarblurf, Fun, Args) when is_function(Fun) -> + Args. + +error_handler_tuple_fun(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + ?line Term = collect_tuple_fun(1024, {?MODULE,very_undefined_function}), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[{foo,bar},42.0,[e,f,g]]] = lists:usort(Term), + ok. + +collect_tuple_fun(0, _) -> + []; +collect_tuple_fun(N, Fun) -> + %% The next line calls the error handle function, which is + %% ?MODULE:undefined_function/3 (it simply returns the list + %% of args). + C = Fun({foo,id(bar)}, 42.0, [e,f,id(g)]), + + %% The variable C will be saved onto the stack frame; if C + %% points into a heap fragment the garbage collector will reach + %% it and the emulator will crash sooner or later (sooner if + %% the emulator is debug-compiled). + Res = collect_tuple_fun(N-1, Fun), + [C|Res]. + +debug_breakpoint(Config) when is_list(Config) -> + ?line process_flag(error_handler, ?MODULE), + ?line erts_debug:breakpoint({?MODULE,foobar,5}, true), + ?line Term = break_collect(1024), + ?line Term = binary_to_term(term_to_binary(Term)), + ?line 1024 = length(Term), + ?line [[a,b,c,{d,e},[f,g,h]]] = lists:usort(Term), + ?line erts_debug:breakpoint({?MODULE,foobar,5}, false), + ok. + +break_collect(0) -> + []; +break_collect(N) -> + C = foobar(a, b, c, {id(d),e}, [f,g,id(h)]), + Res = break_collect(N-1), + [C|Res]. + +breakpoint(?MODULE, foobar, Args) -> + Args. + +foobar(_, _, _, _, _) -> + exit(dont_execute_me). + +id(I) -> I. + + |