tests: remove unnecessary message iterator classes

[babeltrace.git] / tests / bindings / python / bt2 / test_port.py

diff --git a/tests/bindings/python/bt2/test_port.py b/tests/bindings/python/bt2/test_port.py
index dab6c536b4e524716e43dcfe2a70964f4d3d0ec6..68640a78fe8bb5ced6341130b43c14ff91ea9cc2 100644 (file)
--- a/tests/bindings/python/bt2/test_port.py
+++ b/tests/bindings/python/bt2/test_port.py
@@ -32,12 +32,10 @@ class PortTestCase(unittest.TestCase):
         return graph.add_component(comp_cls, name)
 
     def test_src_add_output_port(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_output_port('out')
                 self.assertEqual(port.name, 'out')
 
@@ -46,12 +44,10 @@ class PortTestCase(unittest.TestCase):
         self.assertIs(type(comp.output_ports['out']), bt2_port._OutputPortConst)
 
     def test_flt_add_output_port(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_output_port('out')
                 self.assertEqual(port.name, 'out')
 
@@ -59,12 +55,10 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(len(comp.output_ports), 1)
 
     def test_flt_add_input_port(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_input_port('in')
                 self.assertEqual(port.name, 'in')
 
@@ -74,7 +68,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_sink_add_input_port(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_input_port('in')
                 self.assertEqual(port.name, 'in')
 
@@ -85,12 +79,10 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(len(comp.input_ports), 1)
 
     def test_user_src_output_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -101,12 +93,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySource)
 
     def test_user_flt_output_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -117,12 +107,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MyFilter)
 
     def test_user_flt_input_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -134,7 +122,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_user_sink_input_ports_getitem(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -148,12 +136,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySink)
 
     def test_user_src_output_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -164,12 +150,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySource)
 
     def test_user_flt_output_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -180,12 +164,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MyFilter)
 
     def test_user_flt_input_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -197,7 +179,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_user_sink_input_ports_getitem_invalid_key(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -211,12 +193,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySink)
 
     def test_user_src_output_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -225,12 +205,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySource)
 
     def test_user_flt_output_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -239,12 +217,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MyFilter)
 
     def test_user_flt_input_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -254,7 +230,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_user_sink_input_ports_len(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -266,12 +242,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySink)
 
     def test_user_src_output_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -290,12 +264,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySource)
 
     def test_user_flt_output_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -314,12 +286,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MyFilter)
 
     def test_user_flt_input_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -339,7 +309,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_user_sink_input_ports_iter(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -361,16 +331,14 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySink)
 
     def test_gen_src_output_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -385,16 +353,14 @@ class PortTestCase(unittest.TestCase):
         del port3
 
     def test_gen_flt_output_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -409,16 +375,14 @@ class PortTestCase(unittest.TestCase):
         del port3
 
     def test_gen_flt_input_ports_getitem(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -438,7 +402,7 @@ class PortTestCase(unittest.TestCase):
         port3 = None
 
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -456,12 +420,10 @@ class PortTestCase(unittest.TestCase):
         del port3
 
     def test_gen_src_output_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -472,12 +434,10 @@ class PortTestCase(unittest.TestCase):
             comp.output_ports['hello']
 
     def test_gen_flt_output_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -488,12 +448,10 @@ class PortTestCase(unittest.TestCase):
             comp.output_ports['hello']
 
     def test_gen_flt_input_ports_getitem_invalid_key(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -505,7 +463,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_gen_sink_input_ports_getitem_invalid_key(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -522,12 +480,10 @@ class PortTestCase(unittest.TestCase):
             comp.input_ports['hello']
 
     def test_gen_src_output_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -536,12 +492,10 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(len(comp.output_ports), 3)
 
     def test_gen_flt_output_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -550,12 +504,10 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(len(comp.output_ports), 3)
 
     def test_gen_flt_input_ports_len(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -565,7 +517,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_gen_sink_input_ports_len(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -577,16 +529,14 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(len(comp.input_ports), 3)
 
     def test_gen_src_output_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -609,16 +559,14 @@ class PortTestCase(unittest.TestCase):
         del port3
 
     def test_gen_flt_output_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -641,16 +589,14 @@ class PortTestCase(unittest.TestCase):
         del port3
 
     def test_gen_flt_input_ports_iter(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
         port1 = None
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -678,7 +624,7 @@ class PortTestCase(unittest.TestCase):
         port3 = None
 
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -705,7 +651,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_name(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
 
             def _user_consume(self):
@@ -716,7 +662,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_connection_none(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
 
             def _user_consume(self):
@@ -727,7 +673,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_is_connected_false(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 comp_self._add_input_port('clear')
 
             def _user_consume(self):
@@ -738,7 +684,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_self_name(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertEqual(port.name, 'clear')
 
@@ -749,7 +695,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_self_connection_none(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertIsNone(port.connection)
 
@@ -760,7 +706,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_self_is_connected_false(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params, obj):
+            def __init__(comp_self, config, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertFalse(port.is_connected)
 
@@ -770,12 +716,10 @@ class PortTestCase(unittest.TestCase):
         self._create_comp(MySink)
 
     def test_source_self_port_user_data(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySource(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySource(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal user_datas
 
                 p = comp_self._add_output_port('port1')
@@ -789,12 +733,10 @@ class PortTestCase(unittest.TestCase):
         self.assertEqual(user_datas, [None, 2])
 
     def test_filter_self_port_user_data(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MyFilter(
+            bt2._UserFilterComponent, message_iterator_class=bt2._UserMessageIterator
+        ):
+            def __init__(comp_self, config, params, obj):
                 nonlocal user_datas
 
                 p = comp_self._add_output_port('port1')
@@ -815,12 +757,8 @@ class PortTestCase(unittest.TestCase):
         )
 
     def test_sink_self_port_user_data(self):
-        class MyIter(bt2._UserMessageIterator):
-            def __next__(self):
-                raise bt2.Stop
-
-        class MySink(bt2._UserFilterComponent, message_iterator_class=MyIter):
-            def __init__(comp_self, params, obj):
+        class MySink(bt2._UserSinkComponent):
+            def __init__(comp_self, config, params, obj):
                 nonlocal user_datas
 
                 p = comp_self._add_input_port('port1')
@@ -828,6 +766,9 @@ class PortTestCase(unittest.TestCase):
                 p = comp_self._add_input_port('port2', set())
                 user_datas.append(p.user_data)
 
+            def _user_consume(self):
+                pass
+
         user_datas = []
 
         self._create_comp(MySink)