bt2: Add `Const` suffix to `_Connection` class and adapt tests
[babeltrace.git] / tests / bindings / python / bt2 / test_port.py
index 93b9ab12199fe4d9563e81fe4d6e05adb29929d5..7db49fb27011d36391a3a4ac24237cd5996f07f0 100644 (file)
@@ -1,10 +1,25 @@
-from bt2 import values
+#
+# Copyright (C) 2019 EfficiOS Inc.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; only version 2
+# of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+
 import unittest
-import copy
 import bt2
 
 
-@unittest.skip("this is broken")
 class PortTestCase(unittest.TestCase):
     @staticmethod
     def _create_comp(comp_cls, name=None):
@@ -20,24 +35,21 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_output_port('out')
                 self.assertEqual(port.name, 'out')
 
         comp = self._create_comp(MySource)
         self.assertEqual(len(comp.output_ports), 1)
 
-
     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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_output_port('out')
                 self.assertEqual(port.name, 'out')
 
@@ -49,9 +61,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_input_port('in')
                 self.assertEqual(port.name, 'in')
 
@@ -60,11 +71,11 @@ class PortTestCase(unittest.TestCase):
 
     def test_sink_add_input_port(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_input_port('in')
                 self.assertEqual(port.name, 'in')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -75,9 +86,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -85,16 +95,15 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(port2.addr, comp_self._output_ports['print'].addr)
                 self.assertEqual(port1.addr, comp_self._output_ports['clear'].addr)
 
-        comp = self._create_comp(MySource)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -102,16 +111,15 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(port2.addr, comp_self._output_ports['print'].addr)
                 self.assertEqual(port1.addr, comp_self._output_ports['clear'].addr)
 
-        comp = self._create_comp(MyFilter)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -119,11 +127,11 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(port2.addr, comp_self._input_ports['print'].addr)
                 self.assertEqual(port1.addr, comp_self._input_ports['clear'].addr)
 
-        comp = self._create_comp(MyFilter)
+        self._create_comp(MyFilter)
 
     def test_user_sink_input_ports_getitem(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -131,19 +139,18 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(port2.addr, comp_self._input_ports['print'].addr)
                 self.assertEqual(port1.addr, comp_self._input_ports['clear'].addr)
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        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):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -151,16 +158,15 @@ class PortTestCase(unittest.TestCase):
                 with self.assertRaises(KeyError):
                     comp_self._output_ports['hello']
 
-        comp = self._create_comp(MySource)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -168,16 +174,15 @@ class PortTestCase(unittest.TestCase):
                 with self.assertRaises(KeyError):
                     comp_self._output_ports['hello']
 
-        comp = self._create_comp(MyFilter)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -185,11 +190,11 @@ class PortTestCase(unittest.TestCase):
                 with self.assertRaises(KeyError):
                     comp_self._input_ports['hello']
 
-        comp = self._create_comp(MyFilter)
+        self._create_comp(MyFilter)
 
     def test_user_sink_input_ports_getitem_invalid_key(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -197,77 +202,73 @@ class PortTestCase(unittest.TestCase):
                 with self.assertRaises(KeyError):
                     comp_self._input_ports['hello']
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        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):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
                 self.assertEqual(len(comp_self._output_ports), 3)
 
-        comp = self._create_comp(MySource)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
                 self.assertEqual(len(comp_self._output_ports), 3)
 
-        comp = self._create_comp(MyFilter)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
                 self.assertEqual(len(comp_self._input_ports), 3)
 
-        comp = self._create_comp(MyFilter)
+        self._create_comp(MyFilter)
 
     def test_user_sink_input_ports_len(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
                 self.assertEqual(len(comp_self._input_ports), 3)
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        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):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -283,16 +284,15 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(ports[2][0], 'insert')
                 self.assertEqual(ports[2][1].addr, port3.addr)
 
-        comp = self._create_comp(MySource)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
                 port3 = comp_self._add_output_port('insert')
@@ -308,16 +308,15 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(ports[2][0], 'insert')
                 self.assertEqual(ports[2][1].addr, port3.addr)
 
-        comp = self._create_comp(MyFilter)
+        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):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -333,11 +332,11 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(ports[2][0], 'insert')
                 self.assertEqual(ports[2][1].addr, port3.addr)
 
-        comp = self._create_comp(MyFilter)
+        self._create_comp(MyFilter)
 
     def test_user_sink_input_ports_iter(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
@@ -353,10 +352,10 @@ class PortTestCase(unittest.TestCase):
                 self.assertEqual(ports[2][0], 'insert')
                 self.assertEqual(ports[2][1].addr, port3.addr)
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        self._create_comp(MySink)
 
     def test_gen_src_output_ports_getitem(self):
         class MyIter(bt2._UserMessageIterator):
@@ -367,9 +366,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -392,9 +390,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -417,9 +414,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -439,13 +435,13 @@ class PortTestCase(unittest.TestCase):
         port3 = None
 
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -461,9 +457,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -478,9 +473,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -495,9 +489,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -509,7 +502,7 @@ class PortTestCase(unittest.TestCase):
 
     def test_gen_sink_input_ports_getitem_invalid_key(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -517,7 +510,7 @@ class PortTestCase(unittest.TestCase):
                 with self.assertRaises(KeyError):
                     comp_self._input_ports['hello']
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -530,9 +523,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -545,9 +537,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_output_port('clear')
                 comp_self._add_output_port('print')
                 comp_self._add_output_port('insert')
@@ -560,9 +551,8 @@ class PortTestCase(unittest.TestCase):
             def __next__(self):
                 raise bt2.Stop
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
@@ -572,12 +562,12 @@ class PortTestCase(unittest.TestCase):
 
     def test_gen_sink_input_ports_len(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
                 comp_self._add_input_port('print')
                 comp_self._add_input_port('insert')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -592,9 +582,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MySource(bt2._UserSourceComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -625,9 +614,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_output_port('clear')
                 port2 = comp_self._add_output_port('print')
@@ -658,9 +646,8 @@ class PortTestCase(unittest.TestCase):
         port2 = None
         port3 = None
 
-        class MyFilter(bt2._UserFilterComponent,
-                       message_iterator_class=MyIter):
-            def __init__(comp_self, params):
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
@@ -688,13 +675,13 @@ class PortTestCase(unittest.TestCase):
         port3 = None
 
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 nonlocal port1, port2, port3
                 port1 = comp_self._add_input_port('clear')
                 port2 = comp_self._add_input_port('print')
                 port3 = comp_self._add_input_port('insert')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -715,32 +702,21 @@ class PortTestCase(unittest.TestCase):
 
     def test_name(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
         self.assertEqual(comp.input_ports['clear'].name, 'clear')
 
-    def test_component(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                comp_self._add_input_port('clear')
-
-            def _consume(self):
-                pass
-
-        comp = self._create_comp(MySink)
-        self.assertEqual(comp.input_ports['clear'].component.addr, comp.addr)
-
     def test_connection_none(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
@@ -748,142 +724,108 @@ class PortTestCase(unittest.TestCase):
 
     def test_is_connected_false(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 comp_self._add_input_port('clear')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
         comp = self._create_comp(MySink)
         self.assertFalse(comp.input_ports['clear'].is_connected)
 
-    def test_eq(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                comp_self._add_input_port('clear')
-
-            def _consume(self):
-                pass
-
-        comp = self._create_comp(MySink)
-        self.assertEqual(comp.input_ports['clear'],
-                         comp.input_ports['clear'])
-
-    def test_eq_invalid(self):
+    def test_self_name(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                comp_self._add_input_port('clear')
-
-            def _consume(self):
-                pass
-
-        comp = self._create_comp(MySink)
-        self.assertNotEqual(comp.input_ports['clear'], 23)
-
-    def test_disconnect_no_connection(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-
-            def _consume(self):
-                pass
-
-        comp = self._create_comp(MySink)
-        comp.input_ports['clear'].disconnect()
-
-    def test_priv_name(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertEqual(port.name, 'clear')
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        self._create_comp(MySink)
 
-    def test_priv_component(self):
+    def test_self_connection_none(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-                self.assertEqual(port.component, comp_self)
-
-            def _consume(self):
-                pass
-
-        comp = self._create_comp(MySink)
-
-    def test_priv_connection_none(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertIsNone(port.connection)
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        self._create_comp(MySink)
 
-    def test_priv_is_connected_false(self):
+    def test_self_is_connected_false(self):
         class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
+            def __init__(comp_self, params, obj):
                 port = comp_self._add_input_port('clear')
                 self.assertFalse(port.is_connected)
 
-            def _consume(self):
+            def _user_consume(self):
                 pass
 
-        comp = self._create_comp(MySink)
+        self._create_comp(MySink)
 
-    def test_priv_eq(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-                self.assertEqual(port, port)
+    def test_source_self_port_user_data(self):
+        class MyIter(bt2._UserMessageIterator):
+            def __next__(self):
+                raise bt2.Stop
 
-            def _consume(self):
-                pass
+        class MySource(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
+                nonlocal user_datas
 
-        comp = self._create_comp(MySink)
+                p = comp_self._add_output_port('port1')
+                user_datas.append(p.user_data)
+                p = comp_self._add_output_port('port2', 2)
+                user_datas.append(p.user_data)
 
-    def test_priv_eq_invalid(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-                self.assertNotEqual(port, 23)
+        user_datas = []
 
-            def _consume(self):
-                pass
+        self._create_comp(MySource)
+        self.assertEqual(user_datas, [None, 2])
 
-        comp = self._create_comp(MySink)
+    def test_filter_self_port_user_data(self):
+        class MyIter(bt2._UserMessageIterator):
+            def __next__(self):
+                raise bt2.Stop
 
-    def test_priv_disconnect_no_connection(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-                port.disconnect()
+        class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
+                nonlocal user_datas
 
-            def _consume(self):
-                pass
+                p = comp_self._add_output_port('port1')
+                user_datas.append(p.user_data)
+                p = comp_self._add_output_port('port2', 'user data string')
+                user_datas.append(p.user_data)
 
-        comp = self._create_comp(MySink)
+                p = comp_self._add_input_port('port3')
+                user_datas.append(p.user_data)
+                p = comp_self._add_input_port('port4', user_data={'user data': 'dict'})
+                user_datas.append(p.user_data)
 
-    def test_priv_remove_from_component(self):
-        class MySink(bt2._UserSinkComponent):
-            def __init__(comp_self, params):
-                port = comp_self._add_input_port('clear')
-                self.assertEqual(len(comp_self._input_ports), 1)
+        user_datas = []
+
+        self._create_comp(MyFilter)
+        self.assertEqual(
+            user_datas, [None, 'user data string', None, {'user data': 'dict'}]
+        )
+
+    def test_sink_self_port_user_data(self):
+        class MyIter(bt2._UserMessageIterator):
+            def __next__(self):
+                raise bt2.Stop
 
-                try:
-                    port.remove_from_component()
-                except:
-                    import traceback
-                    traceback.print_exc()
+        class MySink(bt2._UserFilterComponent, message_iterator_class=MyIter):
+            def __init__(comp_self, params, obj):
+                nonlocal user_datas
 
-                self.assertEqual(len(comp_self._input_ports), 0)
-                self.assertIsNone(port.component)
+                p = comp_self._add_input_port('port1')
+                user_datas.append(p.user_data)
+                p = comp_self._add_input_port('port2', set())
+                user_datas.append(p.user_data)
 
-            def _consume(self):
-                pass
+        user_datas = []
 
-        comp = self._create_comp(MySink)
+        self._create_comp(MySink)
+        self.assertEqual(user_datas, [None, set()])
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