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import mock
import pytest
import yaml
import inspect
import collections
from ansible.modules.cloud.openstack import os_server
class AnsibleFail(Exception):
pass
class AnsibleExit(Exception):
pass
def params_from_doc(func):
'''This function extracts the docstring from the specified function,
parses it as a YAML document, and returns parameters for the os_server
module.'''
doc = inspect.getdoc(func)
cfg = yaml.load(doc)
for task in cfg:
for module, params in task.items():
for k, v in params.items():
if k in ['nics'] and type(v) == str:
params[k] = [v]
task[module] = collections.defaultdict(str,
params)
return cfg[0]['os_server']
class FakeCloud (object):
ports = [
{'name': 'port1', 'id': '1234'},
{'name': 'port2', 'id': '4321'},
]
networks = [
{'name': 'network1', 'id': '5678'},
{'name': 'network2', 'id': '8765'},
]
images = [
{'name': 'cirros', 'id': '1'},
{'name': 'fedora', 'id': '2'},
]
flavors = [
{'name': 'm1.small', 'id': '1', 'flavor_ram': 1024},
{'name': 'm1.tiny', 'id': '2', 'flavor_ram': 512},
]
def _find(self, source, name):
for item in source:
if item['name'] == name or item['id'] == name:
return item
def get_image_id(self, name, exclude=None):
image = self._find(self.images, name)
if image:
return image['id']
def get_flavor(self, name):
return self._find(self.flavors, name)
def get_flavor_by_ram(self, ram, include=None):
for flavor in self.flavors:
if flavor['ram'] >= ram and (include is None or include in
flavor['name']):
return flavor
def get_port(self, name):
return self._find(self.ports, name)
def get_network(self, name):
return self._find(self.networks, name)
create_server = mock.MagicMock()
class TestNetworkArgs(object):
'''This class exercises the _network_args function of the
os_server module. For each test, we parse the YAML document
contained in the docstring to retrieve the module parameters for the
test.'''
def setup_method(self, method):
self.cloud = FakeCloud()
self.module = mock.MagicMock()
self.module.params = params_from_doc(method)
def test_nics_string_net_id(self):
'''
- os_server:
nics: net-id=1234
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['net-id'] == '1234')
def test_nics_string_net_id_list(self):
'''
- os_server:
nics: net-id=1234,net-id=4321
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['net-id'] == '1234')
assert(args[1]['net-id'] == '4321')
def test_nics_string_port_id(self):
'''
- os_server:
nics: port-id=1234
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['port-id'] == '1234')
def test_nics_string_net_name(self):
'''
- os_server:
nics: net-name=network1
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['net-id'] == '5678')
def test_nics_string_port_name(self):
'''
- os_server:
nics: port-name=port1
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['port-id'] == '1234')
def test_nics_structured_net_id(self):
'''
- os_server:
nics:
- net-id: '1234'
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['net-id'] == '1234')
def test_nics_structured_mixed(self):
'''
- os_server:
nics:
- net-id: '1234'
- port-name: port1
- 'net-name=network1,port-id=4321'
'''
args = os_server._network_args(self.module, self.cloud)
assert(args[0]['net-id'] == '1234')
assert(args[1]['port-id'] == '1234')
assert(args[2]['net-id'] == '5678')
assert(args[3]['port-id'] == '4321')
class TestCreateServer(object):
def setup_method(self, method):
self.cloud = FakeCloud()
self.module = mock.MagicMock()
self.module.params = params_from_doc(method)
self.module.fail_json.side_effect = AnsibleFail()
self.module.exit_json.side_effect = AnsibleExit()
self.meta = mock.MagicMock()
self.meta.gett_hostvars_from_server.return_value = {
'id': '1234'
}
os_server.meta = self.meta
def test_create_server(self):
'''
- os_server:
image: cirros
flavor: m1.tiny
nics:
- net-name: network1
meta:
- key: value
'''
with pytest.raises(AnsibleExit):
os_server._create_server(self.module, self.cloud)
assert(self.cloud.create_server.call_count == 1)
assert(self.cloud.create_server.call_args[1]['image']
== self.cloud.get_image_id('cirros'))
assert(self.cloud.create_server.call_args[1]['flavor']
== self.cloud.get_flavor('m1.tiny')['id'])
assert(self.cloud.create_server.call_args[1]['nics'][0]['net-id']
== self.cloud.get_network('network1')['id'])
def test_create_server_bad_flavor(self):
'''
- os_server:
image: cirros
flavor: missing_flavor
nics:
- net-name: network1
'''
with pytest.raises(AnsibleFail):
os_server._create_server(self.module, self.cloud)
assert('missing_flavor' in
self.module.fail_json.call_args[1]['msg'])
def test_create_server_bad_nic(self):
'''
- os_server:
image: cirros
flavor: m1.tiny
nics:
- net-name: missing_network
'''
with pytest.raises(AnsibleFail):
os_server._create_server(self.module, self.cloud)
assert('missing_network' in
self.module.fail_json.call_args[1]['msg'])
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