diff options
Diffstat (limited to 'erts/emulator/test/bs_match_misc_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/bs_match_misc_SUITE.erl | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/erts/emulator/test/bs_match_misc_SUITE.erl b/erts/emulator/test/bs_match_misc_SUITE.erl index 65256dae35..83f4873dbe 100644 --- a/erts/emulator/test/bs_match_misc_SUITE.erl +++ b/erts/emulator/test/bs_match_misc_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2021. All Rights Reserved. +%% Copyright Ericsson AB 2000-2023. 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. @@ -24,7 +24,8 @@ kenneth/1,encode_binary/1,native/1,happi/1, size_var/1,wiger/1,x0_context/1,huge_float_field/1, writable_binary_matched/1,otp_7198/1,unordered_bindings/1, - float_middle_endian/1,unsafe_get_binary_reuse/1, fp16/1]). + float_middle_endian/1,unsafe_get_binary_reuse/1, fp16/1, + bad_bs_match/1]). -include_lib("common_test/include/ct.hrl"). @@ -37,7 +38,8 @@ all() -> kenneth, encode_binary, native, happi, size_var, wiger, x0_context, huge_float_field, writable_binary_matched, otp_7198, unordered_bindings, float_middle_endian, - unsafe_get_binary_reuse, fp16]. + unsafe_get_binary_reuse, fp16, + bad_bs_match]. %% Test matching of bound variables. @@ -579,8 +581,6 @@ unsafe_get_binary_reuse(Config) when is_list(Config) -> ubgr_1(<<_CP/utf8, Rest/binary>>) -> id(Rest); ubgr_1(_) -> false. -id(I) -> I. - -define(FP16(EncodedInt, Float), (fun(NlInt, NlFloat) -> <<F1:16/float>> = <<NlInt:16>>, @@ -638,3 +638,30 @@ fp16(_Config) -> ?FP16(16#4000, 2), ?FP16(16#4000, 2.0), ok. + +bad_bs_match(_Config) -> + Lines = ["-module(bad_bs_match).", + "-export([f/1]).", + "f(<<X:16,_/binary>>) -> X."], + {Forms,_} = + lists:mapfoldl(fun(Line, L0) -> + {ok,Tokens,L} = erl_scan:string(Line ++ "\n", L0), + {ok,Form} = erl_parse:parse_form(Tokens), + {Form,L} + end, 1, Lines), + {ok,Mod,Beam0} = compile:forms(Forms, [binary]), + + %% Introduce a non-existing sub command of the bs_match instruction. + Beam = binary:replace(Beam0, <<"ensure_at_least">>, <<"future_cool_cmd">>), + true = Beam0 =/= Beam, + + %% There should be an error when attempting to load this BEAM + %% file, not a runtime crash. + {error,badfile} = code:load_binary(Mod, "", Beam), + + ok. + + +%%% Common utilities. +id(I) -> I. + |