charm-rabbitmq-server/unit_tests/test_rabbit_utils.py

237 lines
9.3 KiB
Python

import mock
import os
import unittest
import tempfile
import sys
import collections
from functools import wraps
with mock.patch('charmhelpers.core.hookenv.cached') as cached:
def passthrough(func):
@wraps(func)
def wrapper(*args, **kwargs):
return func(*args, **kwargs)
wrapper._wrapped = func
return wrapper
cached.side_effect = passthrough
import rabbit_utils
sys.modules['MySQLdb'] = mock.Mock()
class ConfigRendererTests(unittest.TestCase):
class FakeContext(object):
def __call__(self, *a, **k):
return {'foo': 'bar'}
config_map = collections.OrderedDict(
[('/this/is/a/config', {
'hook_contexts': [
FakeContext()
]
})]
)
def setUp(self):
super(ConfigRendererTests, self).setUp()
self.renderer = rabbit_utils.ConfigRenderer(
self.config_map)
def test_has_config_data(self):
self.assertTrue(
'/this/is/a/config' in self.renderer.config_data.keys())
@mock.patch("rabbit_utils.log")
@mock.patch("rabbit_utils.render")
def test_write_all(self, log, render):
self.renderer.write_all()
self.assertTrue(render.called)
self.assertTrue(log.called)
RABBITMQCTL_CLUSTERSTATUS_RUNNING = """Cluster status of node 'rabbit@juju-devel3-machine-19' ...
[{nodes,[{disc,['rabbit@juju-devel3-machine-14',
'rabbit@juju-devel3-machine-19']}]},
{running_nodes,['rabbit@juju-devel3-machine-14',
'rabbit@juju-devel3-machine-19']},
{cluster_name,<<"rabbit@juju-devel3-machine-14.openstacklocal">>},
{partitions,[]}]
"""
RABBITMQCTL_CLUSTERSTATUS_SOLO = """Cluster status of node 'rabbit@juju-devel3-machine-14' ...
[{nodes,[{disc,['rabbit@juju-devel3-machine-14']}]},
{running_nodes,['rabbit@juju-devel3-machine-14']},
{cluster_name,<<"rabbit@juju-devel3-machine-14.openstacklocal">>},
{partitions,[]}]
"""
class UtilsTests(unittest.TestCase):
def setUp(self):
super(UtilsTests, self).setUp()
@mock.patch("rabbit_utils.log")
def test_update_empty_hosts_file(self, mock_log):
map = {'1.2.3.4': 'my-host'}
with tempfile.NamedTemporaryFile(delete=False) as tmpfile:
rabbit_utils.HOSTS_FILE = tmpfile.name
rabbit_utils.HOSTS_FILE = tmpfile.name
rabbit_utils.update_hosts_file(map)
with open(tmpfile.name, 'r') as fd:
lines = fd.readlines()
os.remove(tmpfile.name)
self.assertEqual(len(lines), 1)
self.assertEqual(lines[0], "%s %s\n" % (map.items()[0]))
@mock.patch("rabbit_utils.log")
def test_update_hosts_file_w_dup(self, mock_log):
map = {'1.2.3.4': 'my-host'}
with tempfile.NamedTemporaryFile(delete=False) as tmpfile:
rabbit_utils.HOSTS_FILE = tmpfile.name
with open(tmpfile.name, 'w') as fd:
fd.write("%s %s\n" % (map.items()[0]))
rabbit_utils.update_hosts_file(map)
with open(tmpfile.name, 'r') as fd:
lines = fd.readlines()
os.remove(tmpfile.name)
self.assertEqual(len(lines), 1)
self.assertEqual(lines[0], "%s %s\n" % (map.items()[0]))
@mock.patch("rabbit_utils.log")
def test_update_hosts_file_entry(self, mock_log):
altmap = {'1.1.1.1': 'alt-host'}
map = {'1.1.1.1': 'hostA',
'2.2.2.2': 'hostB',
'3.3.3.3': 'hostC',
'4.4.4.4': 'hostD'}
with tempfile.NamedTemporaryFile(delete=False) as tmpfile:
rabbit_utils.HOSTS_FILE = tmpfile.name
with open(tmpfile.name, 'w') as fd:
fd.write("#somedata\n")
fd.write("%s %s\n" % (altmap.items()[0]))
rabbit_utils.update_hosts_file(map)
with open(rabbit_utils.HOSTS_FILE, 'r') as fd:
lines = fd.readlines()
os.remove(tmpfile.name)
self.assertEqual(len(lines), 5)
self.assertEqual(lines[0], "#somedata\n")
self.assertEqual(lines[1], "%s %s\n" % (map.items()[0]))
self.assertEqual(lines[4], "%s %s\n" % (map.items()[3]))
@mock.patch('rabbit_utils.running_nodes')
def test_not_clustered(self, mock_running_nodes):
mock_running_nodes.return_value = []
self.assertFalse(rabbit_utils.clustered())
@mock.patch('rabbit_utils.running_nodes')
def test_clustered(self, mock_running_nodes):
mock_running_nodes.return_value = ['a', 'b']
self.assertTrue(rabbit_utils.clustered())
@mock.patch('rabbit_utils.subprocess')
def test_running_nodes(self, mock_subprocess):
'''Ensure cluster_status can be parsed for a clustered deployment'''
mock_subprocess.check_output.return_value = \
RABBITMQCTL_CLUSTERSTATUS_RUNNING
self.assertEqual(rabbit_utils.running_nodes(),
['rabbit@juju-devel3-machine-14',
'rabbit@juju-devel3-machine-19'])
@mock.patch('rabbit_utils.subprocess')
def test_running_nodes_solo(self, mock_subprocess):
'''Ensure cluster_status can be parsed for a single unit deployment'''
mock_subprocess.check_output.return_value = \
RABBITMQCTL_CLUSTERSTATUS_SOLO
self.assertEqual(rabbit_utils.running_nodes(),
['rabbit@juju-devel3-machine-14'])
@mock.patch('rabbit_utils.get_hostname')
def test_get_node_hostname(self, mock_get_hostname):
mock_get_hostname.return_value = 'juju-devel3-machine-13'
self.assertEqual(rabbit_utils.get_node_hostname('192.168.20.50'),
'juju-devel3-machine-13')
mock_get_hostname.assert_called_with('192.168.20.50', fqdn=False)
@mock.patch('rabbit_utils.get_node_hostname')
@mock.patch('rabbit_utils.peer_retrieve')
def test_leader_node(self, mock_peer_retrieve, mock_get_node_hostname):
mock_peer_retrieve.return_value = '192.168.20.50'
mock_get_node_hostname.return_value = 'juju-devel3-machine-15'
self.assertEqual(rabbit_utils.leader_node(),
'rabbit@juju-devel3-machine-15')
@mock.patch('rabbit_utils.relation_set')
@mock.patch('rabbit_utils.get_local_nodename')
@mock.patch('rabbit_utils.wait_app')
@mock.patch('rabbit_utils.subprocess.check_call')
@mock.patch('rabbit_utils.subprocess.check_output')
@mock.patch('rabbit_utils.time')
@mock.patch('rabbit_utils.running_nodes')
@mock.patch('rabbit_utils.leader_node')
@mock.patch('rabbit_utils.clustered')
@mock.patch('rabbit_utils.cmp_pkgrevno')
def test_cluster_with_not_clustered(self, mock_cmp_pkgrevno,
mock_clustered, mock_leader_node,
mock_running_nodes, mock_time,
mock_check_output, mock_check_call,
mock_wait_app, mock_get_local_nodename,
mock_relation_set):
mock_cmp_pkgrevno.return_value = True
mock_clustered.return_value = False
mock_leader_node.return_value = 'rabbit@juju-devel7-machine-11'
mock_running_nodes.return_value = ['rabbit@juju-devel5-machine-19']
rabbit_utils.cluster_with()
mock_check_output.assert_called_with([rabbit_utils.RABBITMQ_CTL,
'join_cluster',
'rabbit@juju-devel7-machine-11'],
stderr=-2)
@mock.patch('rabbit_utils.subprocess.check_call')
@mock.patch('rabbit_utils.subprocess.check_output')
@mock.patch('rabbit_utils.time')
@mock.patch('rabbit_utils.running_nodes')
@mock.patch('rabbit_utils.leader_node')
@mock.patch('rabbit_utils.clustered')
@mock.patch('rabbit_utils.cmp_pkgrevno')
def test_cluster_with_clustered(self, mock_cmp_pkgrevno, mock_clustered,
mock_leader_node, mock_running_nodes,
mock_time, mock_check_output,
mock_check_call):
mock_clustered.return_value = True
mock_leader_node.return_value = 'rabbit@juju-devel7-machine-11'
mock_running_nodes.return_value = ['rabbit@juju-devel5-machine-19',
'rabbit@juju-devel7-machine-11']
rabbit_utils.cluster_with()
self.assertEqual(0, mock_check_output.call_count)
@mock.patch('rabbit_utils.wait_app')
@mock.patch('rabbit_utils.subprocess.check_call')
@mock.patch('rabbit_utils.subprocess.check_output')
@mock.patch('rabbit_utils.time')
@mock.patch('rabbit_utils.running_nodes')
@mock.patch('rabbit_utils.leader_node')
@mock.patch('rabbit_utils.clustered')
@mock.patch('rabbit_utils.cmp_pkgrevno')
def test_cluster_with_no_leader(self, mock_cmp_pkgrevno, mock_clustered,
mock_leader_node, mock_running_nodes,
mock_time, mock_check_output,
mock_check_call, mock_wait_app):
mock_clustered.return_value = False
mock_leader_node.return_value = None
mock_running_nodes.return_value = ['rabbit@juju-devel5-machine-19']
rabbit_utils.cluster_with()
self.assertEqual(0, mock_check_output.call_count)