diff --git a/tests/test_durable_functions.py b/tests/test_durable_functions.py
index 1739cdcd..353492d8 100644
--- a/tests/test_durable_functions.py
+++ b/tests/test_durable_functions.py
@@ -212,3 +212,31 @@ def test_activity_trigger_has_implicit_return(self):
         self.assertTrue(
             ActivityTriggerConverter.has_implicit_output()
         )
+
+    def test_enitity_trigger_check_output_type_annotation(self):
+        self.assertTrue(
+            EnitityTriggerConverter.check_output_type_annotation(pytype=None)
+        )
+
+    def test_activity_trigger_converter_decode_no_implementation_exception(
+            self):
+        is_exception_raised = False
+        datum = Datum(value=b"dummy", type="bytes")
+        # when
+        try:
+            ActivityTriggerConverter.decode(data=datum, trigger_metadata=None)
+        except NotImplementedError:
+            is_exception_raised = True
+
+        # then
+        self.assertTrue(is_exception_raised)
+
+    def test_enitity_trigger_converter_encode(self):
+
+        data = '{"dummy_key": "dummy_value"}'
+
+        result = EnitityTriggerConverter.encode(
+            obj=data, expected_type=None)
+
+        self.assertEqual(result.type, "json")
+        self.assertEqual(result.python_value, {'dummy_key': 'dummy_value'})
diff --git a/tests/test_kafka.py b/tests/test_kafka.py
index 7c90e314..6121d7e7 100644
--- a/tests/test_kafka.py
+++ b/tests/test_kafka.py
@@ -197,6 +197,38 @@ def test_multiple_kafka_triggers_metadata_field(self):
         sys_dict = json.loads(sys)
         self.assertEqual(sys_dict['MethodName'], 'KafkaTriggerMany')
 
+    def test_kafka_convert_single_event_str(self):
+        datum = meta.Datum("dummy_body", "string")
+        result = azf_ka.KafkaConverter.decode(
+            data=datum, trigger_metadata=None)
+
+        self.assertEqual(result.get_body(), b"dummy_body")
+
+    def test_kafka_convert_single_event_bytes(self):
+        datum = meta.Datum(b"dummy_body", "bytes")
+        result = azf_ka.KafkaConverter.decode(
+            data=datum, trigger_metadata=None)
+
+        self.assertEqual(result.get_body(), b"dummy_body")
+
+    def test_kafka_convert_multiple_event_collection_string(self):
+        datum = meta.Datum(CollectionString(["dummy_body1", "dummy_body2"]),
+                           "collection_string")
+        result = azf_ka.KafkaConverter.decode(
+            data=datum, trigger_metadata=None)
+
+        self.assertEqual([result[0].get_body(), result[1].get_body()],
+                         [b"dummy_body1", b"dummy_body2"])
+
+    def test_kafka_convert_multiple_event_collection_bytes(self):
+        datum = meta.Datum(CollectionBytes([b"dummy_body1", b"dummy_body2"]),
+                           "collection_bytes")
+        result = azf_ka.KafkaConverter.decode(
+            data=datum, trigger_metadata=None)
+
+        self.assertEqual([result[0].get_body(), result[1].get_body()],
+                         [b"dummy_body1", b"dummy_body2"])
+
     def _generate_single_kafka_datum(self, datum_type='string'):
         datum = self.SINGLE_KAFKA_DATAUM
         if datum_type == 'bytes':
diff --git a/tests/test_servicebus.py b/tests/test_servicebus.py
index 4f5c2508..258779cd 100644
--- a/tests/test_servicebus.py
+++ b/tests/test_servicebus.py
@@ -296,6 +296,26 @@ def test_multiple_servicebus_trigger_properties(self):
                 'x-opt-enqueue-sequence-number': 0
             })
 
+    def test_servicebus_message_out_converter_encode_str(self):
+
+        data = "dummy_string"
+
+        result = azf_sb.ServiceBusMessageOutConverter.encode(
+            obj=data, expected_type=None)
+
+        self.assertEqual(result.type, "string")
+        self.assertEqual(result.python_value, data)
+
+    def test_servicebus_message_out_converter_encode_bytes(self):
+
+        data = b"dummy_bytes"
+
+        result = azf_sb.ServiceBusMessageOutConverter.encode(
+            obj=data, expected_type=None)
+
+        self.assertEqual(result.type, "bytes")
+        self.assertEqual(result.python_value, data)
+
     def _generate_single_servicebus_data(self) -> meta.Datum:
         return meta.Datum(value=json.dumps({
             'lucky_number': 23