tests/bindings/python/bt2/test_packet.py

   1 #
   2 # Copyright (C) 2019 EfficiOS Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU General Public License
   6 # as published by the Free Software Foundation; only version 2
   7 # of the License.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17 #
  18
  19 import unittest
  20 from utils import run_in_component_init
  21
  22
  23 class PacketTestCase(unittest.TestCase):
  24     @staticmethod
  25     def _create_packet(with_pc):
  26         def create_tc_cc(comp_self):
  27             cc = comp_self._create_clock_class(frequency=1000, name='my_cc')
  28             tc = comp_self._create_trace_class()
  29             return cc, tc
  30
  31         clock_class, tc = run_in_component_init(create_tc_cc)
  32
  33         # stream event context
  34         sec = tc.create_structure_field_class()
  35         sec += [
  36             ('cpu_id', tc.create_signed_integer_field_class(8)),
  37             ('stuff', tc.create_real_field_class()),
  38         ]
  39
  40         # packet context
  41         pc = None
  42         if with_pc:
  43             pc = tc.create_structure_field_class()
  44             pc += [
  45                 ('something', tc.create_signed_integer_field_class(8)),
  46                 ('something_else', tc.create_real_field_class()),
  47                 ('events_discarded', tc.create_unsigned_integer_field_class(64)),
  48                 ('packet_seq_num', tc.create_unsigned_integer_field_class(64)),
  49             ]
  50
  51         # stream class
  52         sc = tc.create_stream_class(
  53             default_clock_class=clock_class,
  54             event_common_context_field_class=sec,
  55             packet_context_field_class=pc,
  56             supports_packets=True,
  57         )
  58
  59         # event context
  60         ec = tc.create_structure_field_class()
  61         ec += [
  62             ('ant', tc.create_signed_integer_field_class(16)),
  63             ('msg', tc.create_string_field_class()),
  64         ]
  65
  66         # event payload
  67         ep = tc.create_structure_field_class()
  68         ep += [
  69             ('giraffe', tc.create_signed_integer_field_class(32)),
  70             ('gnu', tc.create_signed_integer_field_class(8)),
  71             ('mosquito', tc.create_signed_integer_field_class(8)),
  72         ]
  73
  74         # event class
  75         event_class = sc.create_event_class(name='ec', payload_field_class=ep)
  76         event_class.common_context_field_class = ec
  77
  78         # trace
  79         trace = tc()
  80
  81         # stream
  82         stream = trace.create_stream(sc)
  83
  84         # packet
  85         return stream.create_packet(), stream, pc
  86
  87     def test_attr_stream(self):
  88         packet, stream, _ = self._create_packet(with_pc=True)
  89         self.assertEqual(packet.stream.addr, stream.addr)
  90
  91     def test_context_field(self):
  92         packet, stream, pc_fc = self._create_packet(with_pc=True)
  93         self.assertEqual(packet.context_field.cls.addr, pc_fc.addr)
  94
  95     def test_no_context_field(self):
  96         packet, _, _ = self._create_packet(with_pc=False)
  97         self.assertIsNone(packet.context_field)