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-rw-r--r--lib/compiler/test/match_SUITE.erl21
1 files changed, 19 insertions, 2 deletions
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index 31402ac717..52b2da05f7 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -24,7 +24,7 @@
pmatch/1,mixed/1,aliases/1,non_matching_aliases/1,
match_in_call/1,untuplify/1,shortcut_boolean/1,letify_guard/1,
selectify/1,underscore/1,match_map/1,map_vars_used/1,
- coverage/1,grab_bag/1]).
+ coverage/1,grab_bag/1,literal_binary/1]).
-include_lib("common_test/include/ct.hrl").
@@ -40,7 +40,7 @@ groups() ->
match_in_call,untuplify,
shortcut_boolean,letify_guard,selectify,
underscore,match_map,map_vars_used,coverage,
- grab_bag]}].
+ grab_bag,literal_binary]}].
init_per_suite(Config) ->
@@ -574,6 +574,23 @@ grab_bag_remove_failure([{stretch,_,Mi}=Stretch | Specs], Unit, _MaxFailure) ->
ok
end.
+%% Regression in 19.0, reported by Alexei Sholik
+literal_binary(_Config) ->
+ 3 = literal_binary_match(bar, <<"y">>),
+
+ %% While we are at it, also test the remaining code paths
+ %% in literal_binary_match/2.
+ 1 = literal_binary_match(bar, <<"x">>),
+ 2 = literal_binary_match(foo, <<"x">>),
+ 3 = literal_binary_match(foo, <<"y">>),
+ fail = literal_binary_match(bar, <<"z">>),
+ fail = literal_binary_match(foo, <<"z">>),
+ ok.
+
+literal_binary_match(bar, <<"x">>) -> 1;
+literal_binary_match(_, <<"x">>) -> 2;
+literal_binary_match(_, <<"y">>) -> 3;
+literal_binary_match(_, _) -> fail.
id(I) -> I.