tobiko/tobiko/shell/tcpdump/_assert.py

46 lines
1.4 KiB
Python

# Copyright (c) 2021 Red Hat, Inc.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from __future__ import absolute_import
from __future__ import division
import dpkt
from oslo_log import log
import tobiko
LOG = log.getLogger(__name__)
def assert_pcap_content(pcap: dpkt.pcap.Reader, expect_empty: bool):
actual_empty = True
for _ in pcap:
actual_empty = False
break
testcase = tobiko.get_test_case()
LOG.debug(f'Is the obtained pcap file empty? {actual_empty}')
testcase.assertEqual(expect_empty, actual_empty)
def assert_pcap_is_empty(pcap: dpkt.pcap.Reader):
LOG.debug('This test expects an empty pcap capture')
assert_pcap_content(pcap, True)
def assert_pcap_is_not_empty(pcap: dpkt.pcap.Reader):
LOG.debug('This test expects a non-empty pcap capture')
assert_pcap_content(pcap, False)