1 files changed, 23 insertions, 0 deletions
diff --git a/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl
new file mode 100644
index 0000000000..72ac9ce078
--- /dev/null
+++ b/lib/hipe/test/maps_SUITE_data/maps_put_map_assoc.erl
@@ -0,0 +1,23 @@
+%% -*- erlang-indent-level: 2 -*-
+%%-------------------------------------------------------------------------
+-module(maps_put_map_assoc).
+
+-export([test/0]).
+
+test() ->
+  true  = assoc_guard(#{}),
+  false = assoc_guard(not_a_map),
+  #{a := true} = assoc_update(#{}),
+  {'EXIT', {badarg, [{?MODULE, assoc_update, 1, _}|_]}}
+    = (catch assoc_update(not_a_map)),
+  ok = assoc_guard_clause(#{}),
+  {'EXIT', {function_clause, [{?MODULE, assoc_guard_clause, _, _}|_]}}
+    = (catch assoc_guard_clause(not_a_map)),
+  ok.
+
+assoc_guard(M) when is_map(M#{a => b}) -> true;
+assoc_guard(_) -> false.
+
+assoc_update(M) -> M#{a => true}.
+
+assoc_guard_clause(M) when is_map(M#{a => 3}) -> ok.