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-rw-r--r--lib/debugger/test/bs_construct_SUITE.erl260
1 files changed, 126 insertions, 134 deletions
diff --git a/lib/debugger/test/bs_construct_SUITE.erl b/lib/debugger/test/bs_construct_SUITE.erl
index bd604929c0..6c6435c61a 100644
--- a/lib/debugger/test/bs_construct_SUITE.erl
+++ b/lib/debugger/test/bs_construct_SUITE.erl
@@ -38,7 +38,9 @@
-include_lib("common_test/include/ct.hrl").
-suite() -> [{ct_hooks,[ts_install_cth]}].
+suite() ->
+ [{ct_hooks,[ts_install_cth]},
+ {timetrap,{minutes,15}}].
all() ->
[test1, test2, test3, test4, test5, testf, not_used,
@@ -57,17 +59,14 @@ end_per_group(_GroupName, Config) ->
init_per_testcase(_Case, Config) ->
test_lib:interpret(?MODULE),
- Dog = test_server:timetrap(?t:minutes(15)),
- [{watchdog,Dog}|Config].
+ Config.
-end_per_testcase(_Case, Config) ->
- Dog = ?config(watchdog, Config),
- ?t:timetrap_cancel(Dog),
+end_per_testcase(_Case, _Config) ->
ok.
init_per_suite(Config) when is_list(Config) ->
- ?line test_lib:interpret(?MODULE),
- ?line true = lists:member(?MODULE, int:interpreted()),
+ test_lib:interpret(?MODULE),
+ true = lists:member(?MODULE, int:interpreted()),
Config.
end_per_suite(Config) when is_list(Config) ->
@@ -84,9 +83,9 @@ r(L) ->
-define(T(B, L), {B, ??B, L}).
-define(N(B), {B, ??B, unknown}).
--define(FAIL(Expr), ?line fail_check(catch Expr, ??Expr, [])).
+-define(FAIL(Expr), fail_check(catch Expr, ??Expr, [])).
--define(FAIL_VARS(Expr, Vars), ?line fail_check(catch Expr, ??Expr, Vars)).
+-define(FAIL_VARS(Expr, Vars), fail_check(catch Expr, ??Expr, Vars)).
l(I_13, I_big1) ->
[
@@ -162,7 +161,7 @@ l(I_13, I_big1) ->
?T(<<<<344:17>>/binary-unit:17>>, <<344:17>>),
?T(<<<<42,3,7656:16>>/binary-unit:16>>, <<42,3,7656:16>>)
- ].
+ ].
native_3798() ->
case <<1:16/native>> of
@@ -205,7 +204,7 @@ one_test({C_bin, E_bin, Str, Bytes}) when is_list(Bytes) ->
true ->
io:format("ERROR: Compiled: ~p. Expected ~p. Got ~p.~n",
[Str, Bytes, binary_to_list(C_bin)]),
- test_server:fail(comp)
+ ct:fail(comp)
end,
if
E_bin == Bin ->
@@ -213,7 +212,7 @@ one_test({C_bin, E_bin, Str, Bytes}) when is_list(Bytes) ->
true ->
io:format("ERROR: Interpreted: ~p. Expected ~p. Got ~p.~n",
[Str, Bytes, binary_to_list(E_bin)]),
- test_server:fail(comp)
+ ct:fail(comp)
end;
one_test({C_bin, E_bin, Str, Result}) ->
io:format(" ~s ~p~n", [Str, C_bin]),
@@ -234,7 +233,7 @@ one_test({C_bin, E_bin, Str, Result}) ->
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);
+ ct:fail(comp);
0 ->
ok;
%% For situations where the final bits may not matter, like
@@ -269,23 +268,22 @@ fail_check({'EXIT',{badarg,_}}, Str, Vars) ->
try evaluate(Str, Vars) of
Res ->
io:format("Interpreted result: ~p", [Res]),
- ?t:fail(did_not_fail_in_intepreted_code)
+ ct:fail(did_not_fail_in_intepreted_code)
catch
error:badarg ->
ok
end;
fail_check(Res, _, _) ->
io:format("Compiled result: ~p", [Res]),
- ?t:fail(did_not_fail_in_compiled_code).
+ ct:fail(did_not_fail_in_compiled_code).
%%% Simple working cases
-test1(suite) -> [];
test1(Config) when is_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)).
+ I_13 = i(13),
+ I_big1 = big(1),
+ Vars = [{'I_13', I_13},
+ {'I_big1', I_big1}],
+ lists:foreach(fun one_test/1, eval_list(l(I_13, I_big1), Vars)).
%%% Misc
@@ -301,10 +299,9 @@ gen(N, S, A) ->
gen_l(N, S, A) ->
[?T(<<A:S/little, A:(N-S)/little>>, comp(N, A, S))].
-test2(suite) -> [];
test2(Config) when is_list(Config) ->
- ?line test2(0, 8, 2#10101010101010101),
- ?line test2(0, 8, 2#1111111111).
+ test2(0, 8, 2#10101010101010101),
+ test2(0, 8, 2#1111111111).
test2(End, End, _) ->
ok;
@@ -329,10 +326,9 @@ t3() ->
?N(<<>>)
].
-test3(suite) -> [];
test3(Config) when is_list(Config) ->
- ?line Vars = [],
- ?line lists:foreach(fun one_test/1, eval_list(t3(), Vars)).
+ Vars = [],
+ lists:foreach(fun one_test/1, eval_list(t3(), Vars)).
gen_u(N, S, A) ->
[?N(<<A:S, A:(N-S)>>)].
@@ -340,10 +336,9 @@ gen_u(N, S, A) ->
gen_u_l(N, S, A) ->
[?N(<<A:S/little, A:(N-S)/little>>)].
-test4(suite) -> [];
test4(Config) when is_list(Config) ->
- ?line test4(0, 16, 2#10101010101010101),
- ?line test4(0, 16, 2#1111111111).
+ test4(0, 16, 2#10101010101010101),
+ test4(0, 16, 2#1111111111).
test4(End, End, _) ->
ok;
@@ -361,11 +356,10 @@ 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"];
+%% OTP-3995.
test5(Config) when is_list(Config) ->
- ?line test5(0, 8, <<73>>),
- ?line test5(0, 8, <<68>>).
+ test5(0, 8, <<73>>),
+ test5(0, 8, <<68>>).
test5(End, End, _) ->
ok;
@@ -379,47 +373,46 @@ test5(S, A) ->
lists:foreach(fun one_test/1, eval_list(gen_b(N, S, A), Vars)).
%%% Failure cases
-testf(suite) -> [];
testf(Config) when is_list(Config) ->
- ?line ?FAIL(<<3.14>>),
- ?line ?FAIL(<<<<1,2>>>>),
+ ?FAIL(<<3.14>>),
+ ?FAIL(<<<<1,2>>>>),
- ?line ?FAIL(<<2.71/binary>>),
- ?line ?FAIL(<<24334/binary>>),
- ?line ?FAIL(<<24334344294788947129487129487219847/binary>>),
+ ?FAIL(<<2.71/binary>>),
+ ?FAIL(<<24334/binary>>),
+ ?FAIL(<<24334344294788947129487129487219847/binary>>),
BigInt = id(24334344294788947129487129487219847),
- ?line ?FAIL_VARS(<<BigInt/binary>>, [{'BigInt',BigInt}]),
- ?line ?FAIL_VARS(<<42,BigInt/binary>>, [{'BigInt',BigInt}]),
- ?line ?FAIL_VARS(<<BigInt:2/binary>>, [{'BigInt',BigInt}]),
+ ?FAIL_VARS(<<BigInt/binary>>, [{'BigInt',BigInt}]),
+ ?FAIL_VARS(<<42,BigInt/binary>>, [{'BigInt',BigInt}]),
+ ?FAIL_VARS(<<BigInt:2/binary>>, [{'BigInt',BigInt}]),
%% One negative field size, but the sum of field sizes will be 1 byte.
%% Make sure that we reject that properly.
I_minus_777 = id(-777),
I_minus_2047 = id(-2047),
- ?line ?FAIL_VARS(<<I_minus_777:2048/unit:8,57:I_minus_2047/unit:8>>,
- ordsets:from_list([{'I_minus_777',I_minus_777},
- {'I_minus_2047',I_minus_2047}])),
- ?line ?FAIL(<<<<1,2,3>>/float>>),
+ ?FAIL_VARS(<<I_minus_777:2048/unit:8,57:I_minus_2047/unit:8>>,
+ ordsets:from_list([{'I_minus_777',I_minus_777},
+ {'I_minus_2047',I_minus_2047}])),
+ ?FAIL(<<<<1,2,3>>/float>>),
%% Negative field widths.
- ?line testf_1(-8, <<1,2,3,4,5>>),
- ?line ?FAIL(<<0:(-(1 bsl 100))>>),
+ testf_1(-8, <<1,2,3,4,5>>),
+ ?FAIL(<<0:(-(1 bsl 100))>>),
- ?line ?FAIL(<<42:(-16)>>),
- ?line ?FAIL(<<3.14:(-8)/float>>),
- ?line ?FAIL(<<<<23,56,0,2>>:(-16)/binary>>),
- ?line ?FAIL(<<<<23,56,0,2>>:(2.5)/binary>>),
- ?line ?FAIL(<<<<23,56,0,2>>:(anka)>>),
- ?line ?FAIL(<<<<23,56,0,2>>:(anka)>>),
+ ?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)>>),
+ ?FAIL(<<<<23,56,0,2>>:(anka)>>),
%% Unit failures.
- ?line ?FAIL(<<<<1:1>>/binary>>),
+ ?FAIL(<<<<1:1>>/binary>>),
Sz = id(1),
- ?line ?FAIL_VARS(<<<<1:Sz>>/binary>>, [{'Sz',Sz}]),
- ?line {'EXIT',{badarg,_}} = (catch <<<<1:(id(1))>>/binary>>),
- ?line ?FAIL(<<<<7,8,9>>/binary-unit:16>>),
- ?line ?FAIL(<<<<7,8,9,3:7>>/binary-unit:16>>),
- ?line ?FAIL(<<<<7,8,9,3:7>>/binary-unit:17>>),
+ ?FAIL_VARS(<<<<1:Sz>>/binary>>, [{'Sz',Sz}]),
+ {'EXIT',{badarg,_}} = (catch <<<<1:(id(1))>>/binary>>),
+ ?FAIL(<<<<7,8,9>>/binary-unit:16>>),
+ ?FAIL(<<<<7,8,9,3:7>>/binary-unit:16>>),
+ ?FAIL(<<<<7,8,9,3:7>>/binary-unit:17>>),
ok.
@@ -429,14 +422,13 @@ testf_1(W, B) ->
?FAIL_VARS(<<3.14:W/float>>, Vars),
?FAIL_VARS(<<B:W/binary>>, [{'B',B}|Vars]).
-not_used(doc) ->
- "Test that constructed binaries that are not used will still give an exception.";
+%% 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 {'EXIT',{badarg,_}} = (catch not_used1(3, "dum")),
- ?line {'EXIT',{badarg,_}} = (catch not_used2(444, -2)),
- ?line {'EXIT',{badarg,_}} = (catch not_used2(444, anka)),
- ?line {'EXIT',{badarg,_}} = (catch not_used3(444)),
+ ok = not_used1(3, <<"dum">>),
+ {'EXIT',{badarg,_}} = (catch not_used1(3, "dum")),
+ {'EXIT',{badarg,_}} = (catch not_used2(444, -2)),
+ {'EXIT',{badarg,_}} = (catch not_used2(444, anka)),
+ {'EXIT',{badarg,_}} = (catch not_used3(444)),
ok.
not_used1(I, BinString) ->
@@ -452,11 +444,11 @@ not_used3(I) ->
ok.
in_guard(Config) when is_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),
- ?line 3 = in_guard(<<16#FBCD:14,3/float,3:2>>, 16#FBCD, 3),
- ?line 3 = in_guard(<<16#FBCD:14,(2 bsl 226)/float,3:2>>, 16#FBCD, 2 bsl 226),
+ 1 = in_guard(<<16#74ad:16>>, 16#e95, 5),
+ 2 = in_guard(<<16#3A,16#F7,"hello">>, 16#3AF7, <<"hello">>),
+ 3 = in_guard(<<16#FBCD:14,3.1415/float,3:2>>, 16#FBCD, 3.1415),
+ 3 = in_guard(<<16#FBCD:14,3/float,3:2>>, 16#FBCD, 3),
+ 3 = in_guard(<<16#FBCD:14,(2 bsl 226)/float,3:2>>, 16#FBCD, 2 bsl 226),
nope = in_guard(<<1>>, 42, b),
nope = in_guard(<<1>>, a, b),
nope = in_guard(<<1,2>>, 1, 1),
@@ -470,16 +462,16 @@ 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.
-mem_leak(doc) -> "Make sure that construction has no memory leak";
+%% Make sure that construction has no memory leak.
mem_leak(Config) when is_list(Config) ->
- ?line B = make_bin(16, <<0>>),
- ?line mem_leak(1024, B),
+ B = make_bin(16, <<0>>),
+ mem_leak(1024, B),
ok.
mem_leak(0, _) -> ok;
mem_leak(N, B) ->
- ?line big_bin(B, <<23>>),
- ?line {'EXIT',{badarg,_}} = (catch big_bin(B, bad)),
+ big_bin(B, <<23>>),
+ {'EXIT',{badarg,_}} = (catch big_bin(B, bad)),
mem_leak(N-1, B).
big_bin(B1, B2) ->
@@ -493,18 +485,18 @@ make_bin(0, Acc) -> Acc;
make_bin(N, Acc) -> make_bin(N-1, <<Acc/binary,Acc/binary>>).
-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>>).
+ (fun(Int) ->
+ true = <<Int:32/float>> =:= <<(float(Int)):32/float>>,
+ true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
+ end)(nonliteral(Int0)),
+ true = <<Int0:32/float>> =:= <<(float(Int0)):32/float>>,
+ 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>>).
+ (fun(Int) ->
+ true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
+ end)(nonliteral(Int0)),
+ true = <<Int0:64/float>> =:= <<(float(Int0)):64/float>>).
nonliteral(X) -> X.
@@ -523,7 +515,7 @@ coerce_to_float(Config) when is_list(Config) ->
ok.
bjorn(Config) when is_list(Config) ->
- ?line error = bjorn_1(),
+ error = bjorn_1(),
ok.
bjorn_1() ->
@@ -551,30 +543,30 @@ do_something() ->
throw(blurf).
huge_float_field(Config) when is_list(Config) ->
- ?line {'EXIT',{badarg,_}} = (catch <<0.0:9/float-unit:8>>),
- ?line huge_float_check(catch <<0.0:67108865/float-unit:64>>),
- ?line huge_float_check(catch <<0.0:((1 bsl 26)+1)/float-unit:64>>),
- ?line huge_float_check(catch <<0.0:(id(67108865))/float-unit:64>>),
-%% ?line huge_float_check(catch <<0.0:((1 bsl 60)+1)/float-unit:64>>),
- ?line huge_float_check(catch <<3839739387439387383739387987347983:((1 bsl 26)+1)/float-unit:64>>),
-%% ?line huge_float_check(catch <<3839739387439387383739387987347983:((1 bsl 60)+1)/float-unit:64>>),
+ {'EXIT',{badarg,_}} = (catch <<0.0:9/float-unit:8>>),
+ huge_float_check(catch <<0.0:67108865/float-unit:64>>),
+ huge_float_check(catch <<0.0:((1 bsl 26)+1)/float-unit:64>>),
+ huge_float_check(catch <<0.0:(id(67108865))/float-unit:64>>),
+ %% huge_float_check(catch <<0.0:((1 bsl 60)+1)/float-unit:64>>),
+ huge_float_check(catch <<3839739387439387383739387987347983:((1 bsl 26)+1)/float-unit:64>>),
+ %% huge_float_check(catch <<3839739387439387383739387987347983:((1 bsl 60)+1)/float-unit:64>>),
ok.
huge_float_check({'EXIT',{system_limit,_}}) -> ok;
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))>>),
+ 16777216 = size(<<0:(id(1 bsl 26)),(-1):(id(1 bsl 26))>>),
ok.
system_limit(Config) when is_list(Config) ->
WordSize = erlang:system_info(wordsize),
BitsPerWord = WordSize * 8,
- ?line {'EXIT',{system_limit,_}} =
+ {'EXIT',{system_limit,_}} =
(catch <<0:(id(0)),42:(id(1 bsl BitsPerWord))>>),
- ?line {'EXIT',{system_limit,_}} =
+ {'EXIT',{system_limit,_}} =
(catch <<42:(id(1 bsl BitsPerWord)),0:(id(0))>>),
- ?line {'EXIT',{system_limit,_}} =
+ {'EXIT',{system_limit,_}} =
(catch <<(id(<<>>))/binary,0:(id(1 bsl 100))>>),
case WordSize of
@@ -585,13 +577,13 @@ system_limit(Config) when is_list(Config) ->
end.
system_limit_32() ->
- ?line {'EXIT',{badarg,_}} = (catch <<42:(-1)>>),
- ?line {'EXIT',{badarg,_}} = (catch <<42:(id(-1))>>),
- ?line {'EXIT',{badarg,_}} = (catch <<42:(id(-389739873536870912))/unit:8>>),
- ?line {'EXIT',{system_limit,_}} = (catch <<42:536870912/unit:8>>),
- ?line {'EXIT',{system_limit,_}} = (catch <<42:(id(536870912))/unit:8>>),
- ?line {'EXIT',{system_limit,_}} = (catch <<0:(id(8)),42:536870912/unit:8>>),
- ?line {'EXIT',{system_limit,_}} =
+ {'EXIT',{badarg,_}} = (catch <<42:(-1)>>),
+ {'EXIT',{badarg,_}} = (catch <<42:(id(-1))>>),
+ {'EXIT',{badarg,_}} = (catch <<42:(id(-389739873536870912))/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<42:536870912/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<42:(id(536870912))/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:(id(8)),42:536870912/unit:8>>),
+ {'EXIT',{system_limit,_}} =
(catch <<0:(id(8)),42:(id(536870912))/unit:8>>),
ok.
@@ -601,34 +593,34 @@ badarg(Config) when is_list(Config) ->
%% but the debugger will generate a system_limit exception.
%% It does not seems worthwhile to fix the debugger.
- ?line {'EXIT',{badarg,_}} =
+ {'EXIT',{badarg,_}} =
(catch <<(id(<<>>))/binary,0:(id(-(1 bsl 100)))>>),
ok.
copy_writable_binary(Config) when is_list(Config) ->
- ?line [copy_writable_binary_1(I) || I <- lists:seq(0, 256)],
+ [copy_writable_binary_1(I) || I <- lists:seq(0, 256)],
ok.
copy_writable_binary_1(_) ->
- ?line Bin0 = <<(id(<<>>))/binary,0,1,2,3,4,5,6,7>>,
- ?line SubBin = make_sub_bin(Bin0),
- ?line id(<<42,34,55,Bin0/binary>>), %Make reallocation likelier.
- ?line Pid = spawn(fun() ->
- copy_writable_binary_holder(Bin0, SubBin)
- end),
- ?line Tab = ets:new(holder, []),
- ?line ets:insert(Tab, {17,Bin0}),
- ?line ets:insert(Tab, {42,SubBin}),
- ?line id(<<Bin0/binary,0:(64*1024*8)>>),
- ?line Pid ! self(),
- ?line [{17,Bin0}] = ets:lookup(Tab, 17),
- ?line [{42,Bin0}] = ets:lookup(Tab, 42),
+ Bin0 = <<(id(<<>>))/binary,0,1,2,3,4,5,6,7>>,
+ SubBin = make_sub_bin(Bin0),
+ id(<<42,34,55,Bin0/binary>>), %Make reallocation likelier.
+ Pid = spawn(fun() ->
+ copy_writable_binary_holder(Bin0, SubBin)
+ end),
+ Tab = ets:new(holder, []),
+ ets:insert(Tab, {17,Bin0}),
+ ets:insert(Tab, {42,SubBin}),
+ id(<<Bin0/binary,0:(64*1024*8)>>),
+ Pid ! self(),
+ [{17,Bin0}] = ets:lookup(Tab, 17),
+ [{42,Bin0}] = ets:lookup(Tab, 42),
receive
{Pid,Bin0,Bin0} -> ok;
Other ->
io:format("Unexpected message: ~p", [Other]),
- ?line ?t:fail()
+ ct:fail(failed)
end,
ok.
@@ -656,7 +648,7 @@ dynamic(Config) when is_list(Config) ->
{'DOWN',Ref,process,Pid,normal} ->
ok;
{'DOWN',Ref,process,Pid,Exit} ->
- ?t:fail({Pid,Exit})
+ ct:fail({Pid,Exit})
end || {Pid,Ref} <- Ps],
ok.
@@ -743,17 +735,17 @@ otp_7422_bin(N) when N < 512 ->
otp_7422_bin(_) -> ok.
zero_width(Config) when is_list(Config) ->
- ?line Z = id(0),
+ Z = id(0),
Small = id(42),
Big = id(1 bsl 128),
- ?line <<>> = <<Small:Z>>,
- ?line <<>> = <<Small:0>>,
- ?line <<>> = <<Big:Z>>,
- ?line <<>> = <<Big:0>>,
-
- ?line {'EXIT',{badarg,_}} = (catch <<not_a_number:0>>),
- ?line {'EXIT',{badarg,_}} = (catch <<(id(not_a_number)):Z>>),
- ?line {'EXIT',{badarg,_}} = (catch <<(id(not_a_number)):0>>),
+ <<>> = <<Small:Z>>,
+ <<>> = <<Small:0>>,
+ <<>> = <<Big:Z>>,
+ <<>> = <<Big:0>>,
+
+ {'EXIT',{badarg,_}} = (catch <<not_a_number:0>>),
+ {'EXIT',{badarg,_}} = (catch <<(id(not_a_number)):Z>>),
+ {'EXIT',{badarg,_}} = (catch <<(id(not_a_number)):0>>),
ok.