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#!/usr/bin/env python
"""
Unit-Tests for moznetwork
"""
import re
import subprocess
from distutils.spawn import find_executable
from unittest import mock
import mozinfo
import moznetwork
import mozunit
import pytest
@pytest.fixture(scope="session")
def ip_addresses():
"""List of IP addresses associated with the host."""
# Regex to match IPv4 addresses.
# 0-255.0-255.0-255.0-255, note order is important here.
regexip = re.compile(
"((25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}"
"(25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)"
)
commands = (
["ip", "addr", "show"],
["ifconfig"],
["ipconfig"],
# Explicitly search '/sbin' because it doesn't always appear
# to be on the $PATH of all systems
["/sbin/ip", "addr", "show"],
["/sbin/ifconfig"],
)
cmd = None
for command in commands:
if find_executable(command[0]):
cmd = command
break
else:
raise OSError(
"No program for detecting ip address found! Ensure one of 'ip', "
"'ifconfig' or 'ipconfig' exists on your $PATH."
)
ps = subprocess.Popen(cmd, stdout=subprocess.PIPE)
standardoutput, _ = ps.communicate()
# Generate a list of IPs by parsing the output of ip/ifconfig
return [x.group() for x in re.finditer(regexip, standardoutput.decode("UTF-8"))]
def test_get_ip(ip_addresses):
"""Attempt to test the IP address returned by
moznetwork.get_ip() is valid"""
assert moznetwork.get_ip() in ip_addresses
@pytest.mark.skipif(mozinfo.isWin, reason="Test is not supported in Windows")
def test_get_ip_using_get_interface(ip_addresses):
"""Test that the control flow path for get_ip() using
_get_interface_list() is works"""
with mock.patch("socket.gethostbyname") as byname:
# Force socket.gethostbyname to return None
byname.return_value = None
assert moznetwork.get_ip() in ip_addresses
if __name__ == "__main__":
mozunit.main()
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