charm-percona-cluster/unit_tests/test_percona_hooks.py

210 lines
8.2 KiB
Python

import sys
import mock
from test_utils import CharmTestCase
sys.modules['MySQLdb'] = mock.Mock()
# python-apt is not installed as part of test-requirements but is imported by
# some charmhelpers modules so create a fake import.
sys.modules['apt'] = mock.Mock()
with mock.patch('charmhelpers.contrib.hardening.harden.harden') as mock_dec:
mock_dec.side_effect = (lambda *dargs, **dkwargs: lambda f:
lambda *args, **kwargs: f(*args, **kwargs))
import percona_hooks as hooks
TO_PATCH = ['log', 'config',
'get_db_helper',
'relation_ids',
'relation_set',
'update_nrpe_config',
'get_iface_for_address',
'get_netmask_for_address',
'is_bootstrapped',
'is_sufficient_peers',
'network_get_primary_address',
'resolve_network_cidr',
'unit_get',
'resolve_hostname_to_ip',
'is_clustered',
'get_ipv6_addr',
'get_hacluster_config',
'update_dns_ha_resource_params']
class TestHARelation(CharmTestCase):
def setUp(self):
CharmTestCase.setUp(self, hooks, TO_PATCH)
self.network_get_primary_address.side_effect = NotImplementedError
def test_resources(self):
self.relation_ids.return_value = ['ha:1']
password = 'ubuntu'
helper = mock.Mock()
attrs = {'get_mysql_password.return_value': password}
helper.configure_mock(**attrs)
self.get_db_helper.return_value = helper
self.get_netmask_for_address.return_value = None
self.get_iface_for_address.return_value = None
self.test_config.set('vip', '10.0.3.3')
self.test_config.set('sst-password', password)
self.get_hacluster_config.return_value = {
'vip': '10.0.3.3',
'ha-bindiface': 'eth0',
'ha-mcastport': 5490,
}
def f(k):
return self.test_config.get(k)
self.config.side_effect = f
hooks.ha_relation_joined()
resources = {'res_mysql_vip': 'ocf:heartbeat:IPaddr2',
'res_mysql_monitor': 'ocf:percona:mysql_monitor'}
resource_params = {'res_mysql_vip': ('params ip="10.0.3.3" '
'cidr_netmask="24" '
'nic="eth0"'),
'res_mysql_monitor':
hooks.RES_MONITOR_PARAMS % {'sstpass': 'ubuntu'}}
groups = {'grp_percona_cluster': 'res_mysql_vip'}
clones = {'cl_mysql_monitor': 'res_mysql_monitor meta interleave=true'}
colocations = {'colo_percona_cluster': 'inf: grp_percona_cluster cl_mysql_monitor'} # noqa
locations = {'loc_percona_cluster':
'grp_percona_cluster rule inf: writable eq 1'}
self.relation_set.assert_called_with(
relation_id='ha:1', corosync_bindiface=f('ha-bindiface'),
corosync_mcastport=f('ha-mcastport'), resources=resources,
resource_params=resource_params, groups=groups,
clones=clones, colocations=colocations, locations=locations)
def test_resource_params_vip_cidr_iface_autodetection(self):
"""
Auto-detected values for vip_cidr and vip_iface are used to configure
VIPs, even when explicit config options are provided.
"""
self.relation_ids.return_value = ['ha:1']
helper = mock.Mock()
self.get_db_helper.return_value = helper
self.get_netmask_for_address.return_value = '20'
self.get_iface_for_address.return_value = 'eth1'
self.test_config.set('vip', '10.0.3.3')
self.test_config.set('vip_cidr', '16')
self.test_config.set('vip_iface', 'eth0')
self.get_hacluster_config.return_value = {
'vip': '10.0.3.3',
'ha-bindiface': 'eth0',
'ha-mcastport': 5490,
}
def f(k):
return self.test_config.get(k)
self.config.side_effect = f
hooks.ha_relation_joined()
resource_params = {'res_mysql_vip': ('params ip="10.0.3.3" '
'cidr_netmask="20" '
'nic="eth1"'),
'res_mysql_monitor':
hooks.RES_MONITOR_PARAMS % {'sstpass': 'None'}}
call_args, call_kwargs = self.relation_set.call_args
self.assertEqual(resource_params, call_kwargs['resource_params'])
def test_resource_params_no_vip_cidr_iface_autodetection(self):
"""
When autodetecting vip_cidr and vip_iface fails, values from
vip_cidr and vip_iface config options are used instead.
"""
self.relation_ids.return_value = ['ha:1']
helper = mock.Mock()
self.get_db_helper.return_value = helper
self.get_netmask_for_address.return_value = None
self.get_iface_for_address.return_value = None
self.test_config.set('vip', '10.0.3.3')
self.test_config.set('vip_cidr', '16')
self.test_config.set('vip_iface', 'eth1')
self.get_hacluster_config.return_value = {
'vip': '10.0.3.3',
'ha-bindiface': 'eth1',
'ha-mcastport': 5490,
}
def f(k):
return self.test_config.get(k)
self.config.side_effect = f
hooks.ha_relation_joined()
resource_params = {'res_mysql_vip': ('params ip="10.0.3.3" '
'cidr_netmask="16" '
'nic="eth1"'),
'res_mysql_monitor':
hooks.RES_MONITOR_PARAMS % {'sstpass': 'None'}}
call_args, call_kwargs = self.relation_set.call_args
self.assertEqual(resource_params, call_kwargs['resource_params'])
class TestHostResolution(CharmTestCase):
def setUp(self):
CharmTestCase.setUp(self, hooks, TO_PATCH)
self.network_get_primary_address.side_effect = NotImplementedError
self.is_clustered.return_value = False
self.config.side_effect = self.test_config.get
self.test_config.set('prefer-ipv6', False)
def test_get_db_host_defaults(self):
'''
Ensure that with nothing other than defaults private-address is used
'''
self.unit_get.return_value = 'mydbhost'
self.resolve_hostname_to_ip.return_value = '10.0.0.2'
self.assertEqual(hooks.get_db_host('myclient'), 'mydbhost')
def test_get_db_host_network_spaces(self):
'''
Ensure that if the shared-db relation is bound, its bound address
is used
'''
self.resolve_hostname_to_ip.return_value = '10.0.0.2'
self.network_get_primary_address.side_effect = None
self.network_get_primary_address.return_value = '192.168.20.2'
self.assertEqual(hooks.get_db_host('myclient'), '192.168.20.2')
self.network_get_primary_address.assert_called_with('shared-db')
def test_get_db_host_network_spaces_clustered(self):
'''
Ensure that if the shared-db relation is bound and the unit is
clustered, that the correct VIP is chosen
'''
self.resolve_hostname_to_ip.return_value = '10.0.0.2'
self.is_clustered.return_value = True
self.test_config.set('vip', '10.0.0.100 192.168.20.200')
self.network_get_primary_address.side_effect = None
self.network_get_primary_address.return_value = '192.168.20.2'
self.resolve_network_cidr.return_value = '192.168.20.2/24'
self.assertEqual(hooks.get_db_host('myclient'), '192.168.20.200')
self.network_get_primary_address.assert_called_with('shared-db')
class TestNRPERelation(CharmTestCase):
def setUp(self):
patch_targets_nrpe = TO_PATCH[:]
patch_targets_nrpe.remove("update_nrpe_config")
patch_targets_nrpe.append("nrpe")
patch_targets_nrpe.append("apt_install")
CharmTestCase.setUp(self, hooks, patch_targets_nrpe)
def test_mysql_monitored(self):
"""The mysql service is monitored by Nagios."""
hooks.update_nrpe_config()
self.nrpe.add_init_service_checks.assert_called_once_with(
mock.ANY, ["mysql"], mock.ANY)