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 from collections import OrderedDict
  20 import unittest
  21 from utils import run_in_component_init
  22
  23
  24 class PacketTestCase(unittest.TestCase):
  25     @staticmethod
  26     def _create_packet(with_pc):
  27         def create_tc_cc(comp_self):
  28             cc = comp_self._create_clock_class(frequency=1000, name='my_cc')
  29             tc = comp_self._create_trace_class()
  30             return cc, tc
  31
  32         clock_class, tc = run_in_component_init(create_tc_cc)
  33
  34         # stream event context
  35         sec = tc.create_structure_field_class()
  36         sec += OrderedDict((
  37             ('cpu_id', tc.create_signed_integer_field_class(8)),
  38             ('stuff', tc.create_real_field_class()),
  39         ))
  40
  41         # packet context
  42         pc = None
  43         if with_pc:
  44             pc = tc.create_structure_field_class()
  45             pc += OrderedDict((
  46                 ('something', tc.create_signed_integer_field_class(8)),
  47                 ('something_else', tc.create_real_field_class()),
  48                 ('events_discarded', tc.create_unsigned_integer_field_class(64)),
  49                 ('packet_seq_num', tc.create_unsigned_integer_field_class(64)),
  50             ))
  51
  52         # stream class
  53         sc = tc.create_stream_class(default_clock_class=clock_class,
  54                                     event_common_context_field_class=sec,
  55                                     packet_context_field_class=pc,
  56                                     supports_packets=True)
  57
  58         # event context
  59         ec = tc.create_structure_field_class()
  60         ec += OrderedDict((
  61             ('ant', tc.create_signed_integer_field_class(16)),
  62             ('msg', tc.create_string_field_class()),
  63         ))
  64
  65         # event payload
  66         ep = tc.create_structure_field_class()
  67         ep += OrderedDict((
  68             ('giraffe', tc.create_signed_integer_field_class(32)),
  69             ('gnu', tc.create_signed_integer_field_class(8)),
  70             ('mosquito', tc.create_signed_integer_field_class(8)),
  71         ))
  72
  73         # event class
  74         event_class = sc.create_event_class(name='ec', payload_field_class=ep)
  75         event_class.common_context_field_class = ec
  76
  77         # trace
  78         trace = tc()
  79
  80         # stream
  81         stream = trace.create_stream(sc)
  82
  83         # packet
  84         return stream.create_packet(), stream, pc
  85
  86     def test_attr_stream(self):
  87         packet, stream, _ = self._create_packet(with_pc=True)
  88         self.assertEqual(packet.stream.addr, stream.addr)
  89
  90     def test_context_field(self):
  91         packet, stream, pc_fc = self._create_packet(with_pc=True)
  92         self.assertEqual(packet.context_field.field_class.addr, pc_fc.addr)
  93
  94     def test_no_context_field(self):
  95         packet, _, _ = self._create_packet(with_pc=False)
  96         self.assertIsNone(packet.context_field)