1 files changed, 12 insertions, 0 deletions
diff --git a/t/unit/utils/test_json.py b/t/unit/utils/test_json.py
index 6af1c13b..d6a9c0b0 100644
--- a/t/unit/utils/test_json.py
+++ b/t/unit/utils/test_json.py
@@ -6,6 +6,8 @@ from uuid import uuid4
 
 import pytest
 import pytz
+from hypothesis import given, settings
+from hypothesis import strategies as st
 
 from kombu.utils.encoding import str_to_bytes
 from kombu.utils.json import _DecodeError, dumps, loads
@@ -39,6 +41,16 @@ class test_JSONEncoder:
             'date': stripped.isoformat(),
         }
 
+    @given(message=st.binary())
+    @settings(print_blob=True)
+    def test_binary(self, message):
+        serialized = loads(dumps({
+            'args': (message,),
+        }))
+        assert serialized == {
+            'args': [message],
+        }
+
     def test_Decimal(self):
         d = Decimal('3314132.13363235235324234123213213214134')
         assert loads(dumps({'d': d})), {'d': str(d)}