def test_pick_name(self):
"""Test pick_name function under normal parameters."""
expected_hostname = 'mongodb-slave-1'
fake_service = 'mongodb'
fake_service_type = 'masterful'
fake_instance_id = 'i-test'
fake_row = {
'hostname': 'mongodb-master',
'ip': '12.123.234.3',
'service': 'mongodb',
'service_type': 'masterful',
'instance_id': 'i-d23lk3kjl'}
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
# I'm cheating here by using a list instead of an iterable obj.
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, 'hostname_exists')
self.mox.StubOutWithMock(fake_registrar, 'hostname_instance_exists')
self.mox.StubOutWithMock(fake_registrar, 'check_dup')
self.mox.StubOutWithMock(fake_registrar, 'get_smallest_gap')
aerostat.hostname_exists(
fake_db, 'mongodb-master').AndReturn(True)
fake_registrar.hostname_instance_exists(
fake_db, 'mongodb-master').AndReturn(True)
fake_registrar.check_dup(fake_db, fake_instance_id).AndReturn(False)
fake_registrar.get_smallest_gap(fake_db, fake_service).AndReturn('mongodb-slave-1')
# I'm cheating here by using a list instead of an iterable obj.
fake_db.servers.find(
{'service': fake_service}).AndReturn([fake_row])
self.mox.ReplayAll()
test_hostname = fake_registrar.pick_name(fake_db, fake_service,
fake_service_type, fake_instance_id)
self.assertEqual(test_hostname, expected_hostname)
def test_pick_name(self):
"""Test pick_name function under normal parameters."""
expected_hostname = "mongodb-slave-1"
fake_service = "mongodb"
fake_service_type = "masterful"
fake_instance_id = "i-test"
fake_row = {
"hostname": "mongodb-master",
"ip": "12.123.234.3",
"service": "mongodb",
"service_type": "masterful",
"instance_id": "i-d23lk3kjl",
}
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
# I'm cheating here by using a list instead of an iterable obj.
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, "hostname_exists")
self.mox.StubOutWithMock(fake_registrar, "hostname_instance_exists")
self.mox.StubOutWithMock(fake_registrar, "check_dup")
self.mox.StubOutWithMock(fake_registrar, "get_smallest_gap")
aerostat.hostname_exists(fake_db, "mongodb-master").AndReturn(True)
fake_registrar.hostname_instance_exists(fake_db, "mongodb-master").AndReturn(True)
fake_registrar.check_dup(fake_db, fake_instance_id).AndReturn(False)
fake_registrar.get_smallest_gap(fake_db, fake_service).AndReturn("mongodb-slave-1")
# I'm cheating here by using a list instead of an iterable obj.
fake_db.servers.find({"service": fake_service}).AndReturn([fake_row])
self.mox.ReplayAll()
test_hostname = fake_registrar.pick_name(fake_db, fake_service, fake_service_type, fake_instance_id)
self.assertEqual(test_hostname, expected_hostname)
def test_register_name(self):
"""Test registration of new hostnames."""
fake_hostname = 'mongodb-slave-1'
fake_ip = '12.123.234.5'
fake_instance_id = 'i-23426'
fake_service = 'mongodb'
fake_service_type = 'masterful'
fake_aliases = []
fake_row = {
'hostname': 'mongodb-slave-1',
'ip': '12.123.234.5',
'service': 'mongodb',
'service_type': 'masterful',
'instance_id': 'i-23426',
'aliases': []}
fake_hostname_exists = False
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
fake_db.servers.insert(fake_row).AndReturn(None)
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, 'hostname_exists')
aerostat.hostname_exists(fake_db, fake_hostname).AndReturn(
fake_hostname_exists)
self.mox.ReplayAll()
test_value = fake_registrar.register_name(
fake_db, fake_hostname, fake_ip,
fake_instance_id, fake_service, fake_service_type, fake_aliases)
self.assertTrue(test_value)
def test_hostname_exists(self):
"""test hostname_exists function for negative and positive cases."""
test_hostname1 = 'cassandra-0'
test_hostname2 = 'cassandra-1'
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
fake_cursor_true = self.mox.CreateMockAnything()
fake_cursor_true.count().AndReturn(1)
fake_cursor_false = self.mox.CreateMockAnything()
fake_cursor_false.count().AndReturn(0)
fake_db.servers.find(
{'hostname': test_hostname1}).AndReturn(fake_cursor_true)
fake_db.servers.find(
{'hostname': test_hostname2}).AndReturn(fake_cursor_false)
self.mox.ReplayAll()
self.assertTrue(aerostat.hostname_exists(fake_db, test_hostname1))
self.assertFalse(aerostat.hostname_exists(
fake_db, test_hostname2))
def test_register_name(self):
"""Test registration of new hostnames."""
fake_hostname = "mongodb-slave-1"
fake_ip = "12.123.234.5"
fake_instance_id = "i-23426"
fake_service = "mongodb"
fake_service_type = "masterful"
fake_aliases = []
fake_row = {
"hostname": "mongodb-slave-1",
"ip": "12.123.234.5",
"service": "mongodb",
"service_type": "masterful",
"instance_id": "i-23426",
"aliases": [],
}
fake_hostname_exists = False
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
fake_db.servers.insert(fake_row).AndReturn(None)
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, "hostname_exists")
aerostat.hostname_exists(fake_db, fake_hostname).AndReturn(fake_hostname_exists)
self.mox.ReplayAll()
test_value = fake_registrar.register_name(
fake_db, fake_hostname, fake_ip, fake_instance_id, fake_service, fake_service_type, fake_aliases
)
self.assertTrue(test_value)
def test_pick_name_duplicate_inst_no_host(self):
"""test pick_name when there is a duplicate, but no hostname."""
# This tests the case where a master name swap is underway.
# the <service>-master hostname is removed from the former instance.
# then added to the new master. Meanwhile, the old master needs
# to have a name picked. So we ignore the fact that its instance_id
# is already in the database as long as it has no hostname.
# Replace fallen master.
expected_hostname1 = 'mongodb-master'
# You were master, replace gap in slave names.
expected_hostname2 = 'mongodb-slave-1'
fake_service = 'mongodb'
fake_service_type = 'masterful'
fake_instance_id1 = 'i-test'
fake_instance_id2 = 'i-test2'
# Missing Master
fake_row1 = {'hostname': '', 'ip': '12.123.234.3',
'service': 'mongodb', 'service_type': 'masterful',
'instance_id': 'i-test'}
# Missing Slave
fake_row2 = [
fake_row1,
{'hostname': 'mongodb-master', 'ip': '12.1.1.2',
'service': 'mongodb', 'service_type': 'masterful',
'instance_id': 'i-test2'}]
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
fake_db.servers.find(
{'service': fake_service}).AndReturn([fake_row1])
fake_db.servers.find(
{'service': fake_service}).AndReturn(fake_row2)
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, 'get_hostname')
aerostat.get_hostname(fake_db, fake_instance_id1).AndReturn(
'')
aerostat.get_hostname(fake_db, fake_instance_id2).AndReturn(
'')
self.mox.StubOutWithMock(fake_registrar, 'check_dup')
fake_registrar.check_dup(fake_db, fake_instance_id1).AndReturn(True)
fake_registrar.check_dup(fake_db, fake_instance_id2).AndReturn(True)
# Called for Slave.
self.mox.StubOutWithMock(aerostat, 'hostname_exists')
aerostat.hostname_exists(
fake_db, 'mongodb-master').AndReturn(True)
self.mox.StubOutWithMock(fake_registrar, 'hostname_instance_exists')
fake_registrar.hostname_instance_exists(
fake_db, 'mongodb-master').AndReturn(True)
self.mox.StubOutWithMock(fake_registrar, 'get_smallest_gap')
fake_registrar.get_smallest_gap(fake_db, fake_service).AndReturn(expected_hostname2)
self.mox.ReplayAll()
test_hostname1 = fake_registrar.pick_name(
fake_db, fake_service,
fake_service_type, fake_instance_id1)
test_hostname2 = fake_registrar.pick_name(
fake_db, fake_service,
fake_service_type, fake_instance_id2)
self.assertEqual(test_hostname1, expected_hostname1)
self.assertEqual(test_hostname2, expected_hostname2)
def test_pick_name_duplicate_inst_no_host(self):
"""test pick_name when there is a duplicate, but no hostname."""
# This tests the case where a master name swap is underway.
# the <service>-master hostname is removed from the former instance.
# then added to the new master. Meanwhile, the old master needs
# to have a name picked. So we ignore the fact that its instance_id
# is already in the database as long as it has no hostname.
# Replace fallen master.
expected_hostname1 = "mongodb-master"
# You were master, replace gap in slave names.
expected_hostname2 = "mongodb-slave-1"
fake_service = "mongodb"
fake_service_type = "masterful"
fake_instance_id1 = "i-test"
fake_instance_id2 = "i-test2"
# Missing Master
fake_row1 = {
"hostname": "",
"ip": "12.123.234.3",
"service": "mongodb",
"service_type": "masterful",
"instance_id": "i-test",
}
# Missing Slave
fake_row2 = [
fake_row1,
{
"hostname": "mongodb-master",
"ip": "12.1.1.2",
"service": "mongodb",
"service_type": "masterful",
"instance_id": "i-test2",
},
]
fake_db = self.mox.CreateMockAnything()
fake_db.servers = self.mox.CreateMockAnything()
fake_db.servers.find({"service": fake_service}).AndReturn([fake_row1])
fake_db.servers.find({"service": fake_service}).AndReturn(fake_row2)
fake_registrar = registrar.Registrar()
self.mox.StubOutWithMock(aerostat, "get_hostname")
aerostat.get_hostname(fake_db, fake_instance_id1).AndReturn("")
aerostat.get_hostname(fake_db, fake_instance_id2).AndReturn("")
self.mox.StubOutWithMock(fake_registrar, "check_dup")
fake_registrar.check_dup(fake_db, fake_instance_id1).AndReturn(True)
fake_registrar.check_dup(fake_db, fake_instance_id2).AndReturn(True)
# Called for Slave.
self.mox.StubOutWithMock(aerostat, "hostname_exists")
aerostat.hostname_exists(fake_db, "mongodb-master").AndReturn(True)
self.mox.StubOutWithMock(fake_registrar, "hostname_instance_exists")
fake_registrar.hostname_instance_exists(fake_db, "mongodb-master").AndReturn(True)
self.mox.StubOutWithMock(fake_registrar, "get_smallest_gap")
fake_registrar.get_smallest_gap(fake_db, fake_service).AndReturn(expected_hostname2)
self.mox.ReplayAll()
test_hostname1 = fake_registrar.pick_name(fake_db, fake_service, fake_service_type, fake_instance_id1)
test_hostname2 = fake_registrar.pick_name(fake_db, fake_service, fake_service_type, fake_instance_id2)
self.assertEqual(test_hostname1, expected_hostname1)
self.assertEqual(test_hostname2, expected_hostname2)
