ssh-audit/test/test_resolve.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import socket
import pytest


# pylint: disable=attribute-defined-outside-init,protected-access
class TestResolve(object):
	@pytest.fixture(autouse=True)
	def init(self, ssh_audit):
		self.AuditConf = ssh_audit.AuditConf
		self.audit = ssh_audit.audit
		self.ssh = ssh_audit.SSH

	def _conf(self):
		conf = self.AuditConf('localhost', 22)
		conf.colors = False
		conf.batch = True
		return conf

	def test_resolve_error(self, output_spy, virtual_socket):
		vsocket = virtual_socket
		vsocket.gsock.addrinfodata['localhost#22'] = socket.gaierror(8, 'hostname nor servname provided, or not known')
		s = self.ssh.Socket('localhost', 22)
		conf = self._conf()
		output_spy.begin()
		with pytest.raises(SystemExit):
			list(s._resolve(conf.ipvo))
		lines = output_spy.flush()
		assert len(lines) == 1
		assert 'hostname nor servname provided' in lines[-1]

	def test_resolve_hostname_without_records(self, output_spy, virtual_socket):
		vsocket = virtual_socket
		vsocket.gsock.addrinfodata['localhost#22'] = []
		s = self.ssh.Socket('localhost', 22)
		conf = self._conf()
		output_spy.begin()
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 0

	def test_resolve_ipv4(self, virtual_socket):
		conf = self._conf()
		conf.ipv4 = True
		s = self.ssh.Socket('localhost', 22)
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 1
		assert r[0] == (socket.AF_INET, ('127.0.0.1', 22))

	def test_resolve_ipv6(self, virtual_socket):
		s = self.ssh.Socket('localhost', 22)
		conf = self._conf()
		conf.ipv6 = True
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 1
		assert r[0] == (socket.AF_INET6, ('::1', 22))

	def test_resolve_ipv46_both(self, virtual_socket):
		s = self.ssh.Socket('localhost', 22)
		conf = self._conf()
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 2
		assert r[0] == (socket.AF_INET, ('127.0.0.1', 22))
		assert r[1] == (socket.AF_INET6, ('::1', 22))

	def test_resolve_ipv46_order(self, virtual_socket):
		s = self.ssh.Socket('localhost', 22)
		conf = self._conf()
		conf.ipv4 = True
		conf.ipv6 = True
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 2
		assert r[0] == (socket.AF_INET, ('127.0.0.1', 22))
		assert r[1] == (socket.AF_INET6, ('::1', 22))
		conf = self._conf()
		conf.ipv6 = True
		conf.ipv4 = True
		r = list(s._resolve(conf.ipvo))
		assert len(r) == 2
		assert r[0] == (socket.AF_INET6, ('::1', 22))
		assert r[1] == (socket.AF_INET, ('127.0.0.1', 22))