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-rw-r--r--lib/compiler/test/bs_match_SUITE.erl19
1 files changed, 17 insertions, 2 deletions
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 2fe8cd0cff..ad48d4c0b7 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -39,7 +39,7 @@
match_string_opt/1,select_on_integer/1,
map_and_binary/1,unsafe_branch_caching/1,
bad_literals/1,good_literals/1,constant_propagation/1,
- parse_xml/1,get_payload/1,num_slots_different/1]).
+ parse_xml/1,get_payload/1,escape/1,num_slots_different/1]).
-export([coverage_id/1,coverage_external_ignore/2]).
@@ -71,7 +71,7 @@ groups() ->
match_string_opt,select_on_integer,
map_and_binary,unsafe_branch_caching,
bad_literals,good_literals,constant_propagation,parse_xml,
- get_payload,num_slots_different]}].
+ get_payload,escape,num_slots_different]}].
init_per_suite(Config) ->
@@ -1524,6 +1524,21 @@ do_get_payload(ExtHdr) ->
<<_:13,_:35>> = ExtHdr#ext_header.ext_hdr_opts,
ExtHdrOptions.
+escape(_Config) ->
+ 0 = escape(<<>>, 0),
+ 1 = escape(<<128>>, 0),
+ 2 = escape(<<128,255>>, 0),
+ 42 = escape(<<42>>, 0),
+ 50 = escape(<<42,8>>, 0),
+ ok.
+
+escape(<<Byte, Rest/bits>>, Pos) when Byte >= 127 ->
+ escape(Rest, Pos + 1);
+escape(<<Byte, Rest/bits>>, Pos) ->
+ escape(Rest, Pos + Byte);
+escape(<<_Rest/bits>>, Pos) ->
+ Pos.
+
%% ERL-490
num_slots_different(_Config) ->
Ts = [{<<"de">>, <<"default">>, <<"Remove">>, <<"a">>},