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import mock
import subprocess
import testtools
from probert import multipath
from probert.tests.helpers import random_string
class TestMultipath(testtools.TestCase):
@mock.patch('probert.multipath.subprocess.run')
def test_multipath_show_paths(self, m_run):
mp_out = " ".join([random_string() for x in range(0, 8)])
cp = subprocess.CompletedProcess(args=['foo'], returncode=0,
stdout=mp_out.encode('utf-8'),
stderr="")
m_run.return_value = cp
expected_result = [multipath.MPath(*mp_out.split())._asdict()]
result = multipath.multipath_show_paths()
self.assertEqual(expected_result, result)
@mock.patch('probert.multipath.subprocess.run')
def test_multipath_show_paths_skips_unparsable_output(self, m_run):
lines = ["1 2 3 4 5 6 7 8", "", "a b c d e f g h"]
mp_out = "\n".join(lines)
cp = subprocess.CompletedProcess(args=['foo'], returncode=0,
stdout=mp_out.encode('utf-8'),
stderr="")
m_run.return_value = cp
expected_result = [multipath.MPath(*lines[0].split())._asdict(),
multipath.MPath(*lines[2].split())._asdict()]
result = multipath.multipath_show_paths()
self.assertEqual(expected_result, result)
@mock.patch('probert.multipath.subprocess.run')
def test_multipath_show_maps(self, m_run):
mp_out = " ".join([random_string() for x in range(0, 3)])
cp = subprocess.CompletedProcess(args=['foo'], returncode=0,
stdout=mp_out.encode('utf-8'),
stderr="")
m_run.return_value = cp
expected_result = [multipath.MMap(*mp_out.split())._asdict()]
result = multipath.multipath_show_maps()
self.assertEqual(expected_result, result)
@mock.patch('probert.multipath.subprocess.run')
def test_multipath_show_maps_skips_unparsable_output(self, m_run):
lines = ["1 2 3", "", "a b c"]
mp_out = "\n".join(lines)
cp = subprocess.CompletedProcess(args=['foo'], returncode=0,
stdout=mp_out.encode('utf-8'),
stderr="")
m_run.return_value = cp
expected_result = [multipath.MMap(*lines[0].split())._asdict(),
multipath.MMap(*lines[2].split())._asdict()]
result = multipath.multipath_show_maps()
self.assertEqual(expected_result, result)
@mock.patch('probert.multipath.subprocess.run')
def test_multipath_extract_returns_empty_list_on_err(self, m_run):
m_run.side_effect = subprocess.CalledProcessError(cmd=["my cmd"],
returncode=1)
result = multipath.multipath_show_paths()
self.assertEqual([], result)
@mock.patch('probert.multipath.multipath_show_paths')
@mock.patch('probert.multipath.multipath_show_maps')
def test_multipath_probe_collects_maps_and_paths(self, m_maps, m_paths):
path_string = " ".join([random_string() for x in range(0, 8)])
paths = multipath.MPath(*path_string.split())._asdict()
maps_string = " ".join([random_string() for x in range(0, 3)])
maps = multipath.MMap(*maps_string.split())._asdict()
m_maps.return_value = [maps]
m_paths.return_value = [paths]
result = multipath.probe()
self.assertDictEqual({'maps': [maps], 'paths': [paths]}, result)