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test_nova.py
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import itertools
import json
import treq
from twisted.trial.unittest import SynchronousTestCase
from mimic.canned_responses.nova import server_template
from mimic.test.helpers import json_request, request
from mimic.rest.nova_api import NovaApi
from mimic.test.fixtures import APIMockHelper
class ResponseGenerationTests(SynchronousTestCase):
"""
Tests for Nova response generation.
"""
def test_server_template(self):
"""
:obj:`server_template` generates a JSON object representing an
individual Nova server. This includes a dictionary for the ``image``
parameter that contains the ID and some links, if ``imageRef`` is
provided in the server info
"""
input_server_info = {
"flavorRef": "some_flavor",
"imageRef": "some_image",
"name": "some_server_name",
"metadata": {
"some_key": "some_value",
"some_other_key": "some_other_value",
}
}
counter = itertools.count(1)
compute_service_uri_prefix = (
"http://mimic.example.com/services/region/compute/"
)
actual = server_template("some_tenant", input_server_info,
"some_server_id", "some_status",
"the_current_time",
lambda: next(counter),
compute_service_uri_prefix)
expectation = {
"OS-DCF:diskConfig": "AUTO",
"OS-EXT-STS:power_state": 1,
"OS-EXT-STS:task_state": None,
"OS-EXT-STS:vm_state": "active",
"accessIPv4": "198.101.241.238",
"accessIPv6": "2001:4800:780e:0510:d87b:9cbc:ff04:513a",
"key_name": None,
"addresses": {
"private": [
{
"addr": "10.180.1.2",
"version": 4
}
],
"public": [
{
"addr": "198.101.241.3",
"version": 4
},
{
"addr": "2001:4800:780e:0510:d87b:9cbc:ff04:513a",
"version": 6
}
]
},
"created": "the_current_time",
"flavor": {
"id": "some_flavor",
"links": [
{
"href": ("http://mimic.example.com/services/region/"
"compute/some_tenant/flavors/some_flavor"),
"rel": "bookmark"
}
]
},
"hostId": ("33ccb6c82f3625748b6f2338f54d8e9df07cc583251e001355569"
"056"),
"id": "some_server_id",
"image": {
"id": "some_image",
"links": [
{
"href": "http://mimic.example.com/services/region/"
"compute/some_tenant/images/some_image",
"rel": "bookmark"
}
]
},
"links": [
{
"href": ("http://mimic.example.com/services/region/"
"compute/v2/some_tenant/servers/some_server_id"),
"rel": "self"
},
{
"href": "http://mimic.example.com/services/region/compute/"
"some_tenant/servers/some_server_id",
"rel": "bookmark"
}
],
"metadata": {"some_key": "some_value",
"some_other_key": "some_other_value"},
"name": "some_server_name",
"progress": 100,
"status": "some_status",
"tenant_id": "some_tenant",
"updated": "the_current_time",
"user_id": "170454"
}
self.assertEquals(json.dumps(expectation, indent=2),
json.dumps(actual, indent=2))
def _test_server_template_without_image(self, input_server_info):
"""
Helper function to test generation of a server template with an empty
image.
"""
counter = itertools.count(1)
compute_service_uri_prefix = (
"http://mimic.example.com/services/region/compute/"
)
actual = server_template("some_tenant", input_server_info,
"some_server_id", "some_status",
"the_current_time",
lambda: next(counter),
compute_service_uri_prefix)
self.assertEquals("", actual['image'])
def test_server_template_with_blank_imageRef(self):
"""
:obj:`server_template` generates a JSON object representing an
individual Nova server, but the ``image`` parameter is empty if
``imageRef`` in the server info is blank.
"""
self._test_server_template_without_image({
"flavorRef": "some_flavor",
"imageRef": "",
"name": "some_server_name",
"metadata": {
"some_key": "some_value",
"some_other_key": "some_other_value",
}
})
def test_server_template_with_null_imageRef(self):
"""
:obj:`server_template` generates a JSON object representing an
individual Nova server, but the ``image`` parameter is empty if
``imageRef`` in the server info is null.
"""
self._test_server_template_without_image({
"flavorRef": "some_flavor",
"imageRef": None,
"name": "some_server_name",
"metadata": {
"some_key": "some_value",
"some_other_key": "some_other_value",
}
})
def test_server_template_with_no_imageRef(self):
"""
:obj:`server_template` generates a JSON object representing an
individual Nova server, but the ``image`` parameter is empty if
no ``imageRef`` is provided in the server info.
"""
self._test_server_template_without_image({
"flavorRef": "some_flavor",
"name": "some_server_name",
"metadata": {
"some_key": "some_value",
"some_other_key": "some_other_value",
}
})
class NovaAPITests(SynchronousTestCase):
"""
Tests for the Nova plugin api
"""
def setUp(self):
"""
Create a :obj:`MimicCore` with :obj:`NovaApi` as the only plugin,
and create a server
"""
helper = APIMockHelper(self, [NovaApi(["ORD", "MIMIC"])])
self.root = helper.root
self.uri = helper.uri
self.server_name = 'test_server'
create_server = request(
self, self.root, "POST", self.uri + '/servers',
json.dumps({
"server": {
"name": self.server_name,
"imageRef": "test-image",
"flavorRef": "test-flavor"
}
}))
self.create_server_response = self.successResultOf(create_server)
create_server_response_body = self.successResultOf(
treq.json_content(self.create_server_response))
self.server_id = create_server_response_body['server']['id']
self.nth_endpoint_public = helper.nth_endpoint_public
def test_create_server(self):
"""
Test to verify :func:`create_server` on ``POST /v2.0/<tenant_id>/servers``
"""
self.assertEqual(self.create_server_response.code, 202)
self.assertTrue(type(self.server_id), unicode)
def test_list_servers(self):
"""
Test to verify :func:`list_servers` on ``GET /v2.0/<tenant_id>/servers``
"""
list_servers = request(self, self.root, "GET", self.uri + '/servers')
list_servers_response = self.successResultOf(list_servers)
list_servers_response_body = self.successResultOf(
treq.json_content(list_servers_response))
self.assertEqual(list_servers_response.code, 200)
self.assertEqual(list_servers_response_body['servers'][0]['id'],
self.server_id)
self.assertEqual(len(list_servers_response_body['servers']), 1)
def test_list_servers_with_args(self):
"""
Test to verify :func:`list_servers` on ``GET /v2.0/<tenant_id>/servers?name<name>``,
when a server with that name exists
"""
list_servers = request(self, self.root, "GET", self.uri + '/servers?name=' + self.server_name)
list_servers_response = self.successResultOf(list_servers)
list_servers_response_body = self.successResultOf(
treq.json_content(list_servers_response))
self.assertEqual(list_servers_response.code, 200)
self.assertEqual(list_servers_response_body['servers'][0]['id'],
self.server_id)
self.assertEqual(len(list_servers_response_body['servers']), 1)
def test_list_servers_with_args_negative(self):
"""
Test to verify :func:`list_servers` on ``GET /v2.0/<tenant_id>/servers?name<name>``
when a server with that name does not exist
"""
list_servers = request(self, self.root, "GET", self.uri + '/servers?name=no_server')
list_servers_response = self.successResultOf(list_servers)
list_servers_response_body = self.successResultOf(
treq.json_content(list_servers_response))
self.assertEqual(list_servers_response.code, 200)
self.assertEqual(len(list_servers_response_body['servers']), 0)
def test_get_server(self):
"""
Test to verify :func:`get_server` on ``GET /v2.0/<tenant_id>/servers/<server_id>``,
when the server_id exists
"""
get_server = request(self, self.root, "GET", self.uri + '/servers/' + self.server_id)
get_server_response = self.successResultOf(get_server)
get_server_response_body = self.successResultOf(
treq.json_content(get_server_response))
self.assertEqual(get_server_response.code, 200)
self.assertEqual(get_server_response_body['server']['id'],
self.server_id)
self.assertEqual(get_server_response_body['server']['status'], 'ACTIVE')
def test_get_server_negative(self):
"""
Test to verify :func:`get_server` on ``GET /v2.0/<tenant_id>/servers/<server_id>``,
when the server_id does not exist
"""
get_server = request(self, self.root, "GET", self.uri + '/servers/test-server-id')
get_server_response = self.successResultOf(get_server)
self.assertEqual(get_server_response.code, 404)
def test_list_servers_with_details(self):
"""
Test to verify :func:`list_servers_with_details` on ``GET /v2.0/<tenant_id>/servers/detail``
"""
list_servers_detail = request(self, self.root, "GET", self.uri + '/servers/detail')
list_servers_detail_response = self.successResultOf(list_servers_detail)
list_servers_detail_response_body = self.successResultOf(
treq.json_content(list_servers_detail_response))
self.assertEqual(list_servers_detail_response.code, 200)
self.assertEqual(list_servers_detail_response_body['servers'][0]['id'],
self.server_id)
self.assertEqual(len(list_servers_detail_response_body['servers']), 1)
self.assertEqual(list_servers_detail_response_body['servers'][0]['status'], 'ACTIVE')
def test_list_servers_with_details_with_args(self):
"""
:func:`list_servers_with_details`, used by
``GET /v2.0/<tenant_id>/servers/detail``, returns the server details
for only the servers of a given name
"""
request(
self, self.root, "POST", self.uri + '/servers',
json.dumps({
"server": {
"name": 'non-matching-name',
"imageRef": "test-image",
"flavorRef": "test-flavor"
}
}))
response, body = self.successResultOf(json_request(
self, self.root, "GET",
"{0}/servers/detail?name={1}".format(self.uri, self.server_name)))
self.assertEqual(response.code, 200)
self.assertEqual(body['servers'][0]['id'], self.server_id)
self.assertEqual(len(body['servers']), 1)
self.assertEqual(body['servers'][0]['status'], 'ACTIVE')
def test_list_servers_with_details_with_args_negative(self):
"""
:func:`list_servers_with_details`, used by
``GET /v2.0/<tenant_id>/servers/detail``, returns no servers when
there aren't any that match the given name
"""
response, body = self.successResultOf(json_request(
self, self.root, "GET",
'{0}/servers/detail?name=no_server'.format(self.uri)))
self.assertEqual(response.code, 200)
self.assertEqual(len(body['servers']), 0)
def test_delete_server(self):
"""
Test to verify :func:`delete_server` on ``DELETE /v2.0/<tenant_id>/servers/<server_id>``
"""
delete_server = request(self, self.root, "DELETE", self.uri + '/servers/' + self.server_id)
delete_server_response = self.successResultOf(delete_server)
self.assertEqual(delete_server_response.code, 204)
self.assertEqual(self.successResultOf(treq.content(delete_server_response)),
b"")
def test_delete_server_negative(self):
"""
Test to verify :func:`delete_server` on ``DELETE /v2.0/<tenant_id>/servers/<server_id>``,
when the server_id does not exist
"""
delete_server = request(self, self.root, "DELETE", self.uri + '/servers/test-server-id')
delete_server_response = self.successResultOf(delete_server)
self.assertEqual(delete_server_response.code, 404)
def test_get_server_image(self):
"""
Test to verify :func:`get_image` on ``GET /v2.0/<tenant_id>/images/<image_id>``
"""
get_server_image = request(self, self.root, "GET", self.uri + '/images/test-image-id')
get_server_image_response = self.successResultOf(get_server_image)
get_server_image_response_body = self.successResultOf(
treq.json_content(get_server_image_response))
self.assertEqual(get_server_image_response.code, 200)
self.assertEqual(get_server_image_response_body['image']['id'], 'test-image-id')
self.assertEqual(get_server_image_response_body['image']['status'], 'ACTIVE')
def test_get_server_flavor(self):
"""
Test to verify :func:`get_image` on ``GET /v2.0/<tenant_id>/flavors/<flavor_id>``
"""
get_server_flavor = request(self, self.root, "GET", self.uri + '/flavors/test-flavor-id')
get_server_flavor_response = self.successResultOf(get_server_flavor)
get_server_flavor_response_body = self.successResultOf(
treq.json_content(get_server_flavor_response))
self.assertEqual(get_server_flavor_response.code, 200)
self.assertEqual(get_server_flavor_response_body['flavor']['id'], 'test-flavor-id')
def test_get_server_limits(self):
"""
Test to verify :func:`get_limit` on ``GET /v2.0/<tenant_id>/limits``
"""
get_server_limits = request(self, self.root, "GET", self.uri + '/limits')
get_server_limits_response = self.successResultOf(get_server_limits)
self.assertEqual(get_server_limits_response.code, 200)
self.assertTrue(self.successResultOf(treq.json_content(get_server_limits_response)))
def test_get_server_ips(self):
"""
Test to verify :func:`get_ips` on ``GET /v2.0/<tenant_id>/servers/<server_id>/ips``
"""
get_server_ips = request(self, self.root, "GET",
self.uri + '/servers/' + self.server_id + '/ips')
get_server_ips_response = self.successResultOf(get_server_ips)
get_server_ips_response_body = self.successResultOf(
treq.json_content(get_server_ips_response))
self.assertEqual(get_server_ips_response.code, 200)
list_servers_detail = request(self, self.root, "GET", self.uri + '/servers/detail')
list_servers_detail_response = self.successResultOf(list_servers_detail)
list_servers_detail_response_body = self.successResultOf(
treq.json_content(list_servers_detail_response))
self.assertEqual(get_server_ips_response_body['addresses'],
list_servers_detail_response_body['servers'][0]['addresses'])
def test_get_server_ips_negative(self):
"""
Test to verify :func:`get_ips` on ``GET /v2.0/<tenant_id>/servers/<server_id>/ips``,
when the server_id does not exist
"""
get_server_ips = request(self, self.root, "GET",
self.uri + '/servers/non-existant-server/ips')
get_server_ips_response = self.successResultOf(get_server_ips)
self.assertEqual(get_server_ips_response.code, 404)
def test_different_region_same_server(self):
"""
Creating a server in one nova region should not create it in other nova
regions.
"""
other_region_servers = self.successResultOf(
treq.json_content(
self.successResultOf(request(self, self.root, "GET",
self.nth_endpoint_public(1)
+ "/servers/")))
)["servers"]
self.assertEqual(other_region_servers, [])
class NovaAPINegativeTests(SynchronousTestCase):
"""
Tests for the Nova plugin api for error injections
"""
def setUp(self):
"""
Create a :obj:`MimicCore` with :obj:`NovaApi` as the only plugin,
and create a server
"""
helper = APIMockHelper(self, [NovaApi(["ORD", "MIMIC"])])
self.root = helper.root
self.uri = helper.uri
self.helper = helper
def create_server(self, name=None, imageRef=None, flavorRef=None,
metadata=None):
"""
Creates a server with the given specifications and returns the response
object
:param name: Name of the server
:param imageRef: Image of the server
:param flavorRef: Flavor size of the server
:param metadat: Metadata of the server
"""
create_server = request(
self, self.root, "POST", self.uri + '/servers',
json.dumps({
"server": {
"name": name or 'test_server',
"imageRef": imageRef or "test-image",
"flavorRef": flavorRef or "test-flavor",
"metadata": metadata or {}
}
}))
create_server_response = self.successResultOf(create_server)
return create_server_response
def test_create_server_faiure(self):
"""
Test to verify :func:`create_server` fails with given error message
and response code in the metadata.
"""
serverfail = {"message": "Create server failure", "code": 500}
metadata = {"create_server_failure": json.dumps(serverfail)}
create_server_response = self.create_server(metadata=metadata)
self.assertEquals(create_server_response.code, 500)
create_server_response_body = self.successResultOf(
treq.json_content(create_server_response))
self.assertEquals(create_server_response_body['message'],
"Create server failure")
self.assertEquals(create_server_response_body['code'], 500)
def test_server_in_building_state_for_specified_time(self):
"""
Test to verify :func:`create_server` creates a server in BUILD
status for the time specified in the metadata.
"""
metadata = {"server_building": 1}
# create server with metadata to keep the server in building state for
# 3 seconds
create_server_response = self.create_server(metadata=metadata)
# verify the create server was successful
self.assertEquals(create_server_response.code, 202)
create_server_response_body = self.successResultOf(
treq.json_content(create_server_response))
# get server and verify status is BUILD
get_server = request(self, self.root, "GET", self.uri + '/servers/' +
create_server_response_body["server"]["id"])
get_server_response = self.successResultOf(get_server)
get_server_response_body = self.successResultOf(
treq.json_content(get_server_response))
self.assertEquals(get_server_response_body['server']['status'], "BUILD")
# Time Passes...
self.helper.clock.advance(2.0)
# get server and verify status changed to active
get_server = request(self, self.root, "GET", self.uri + '/servers/' +
create_server_response_body["server"]["id"])
get_server_response = self.successResultOf(get_server)
get_server_response_body = self.successResultOf(
treq.json_content(get_server_response))
self.assertEquals(get_server_response_body['server']['status'], "ACTIVE")
def test_server_in_error_state(self):
"""
Test to verify :func:`create_server` creates a server in ERROR state.
"""
metadata = {"server_error": 1}
# create server with metadata to set status in ERROR
create_server_response = self.create_server(metadata=metadata)
# verify the create server was successful
self.assertEquals(create_server_response.code, 202)
create_server_response_body = self.successResultOf(
treq.json_content(create_server_response))
# get server and verify status is ERROR
get_server = request(self, self.root, "GET", self.uri + '/servers/' +
create_server_response_body["server"]["id"])
get_server_response = self.successResultOf(get_server)
get_server_response_body = self.successResultOf(
treq.json_content(get_server_response))
self.assertEquals(get_server_response_body['server']['status'], "ERROR")
def test_delete_server_fails_specified_number_of_times(self):
"""
Test to verify :func: `delete_server` does not delete the server,
and returns the given response code, the number of times specified
in the metadata
"""
deletefail = {"times": 1, "code": 500}
metadata = {"delete_server_failure": json.dumps(deletefail)}
# create server and verify it was successful
create_server_response = self.create_server(metadata=metadata)
self.assertEquals(create_server_response.code, 202)
create_server_response_body = self.successResultOf(
treq.json_content(create_server_response))
# delete server and verify the response
delete_server = request(self, self.root, "DELETE", self.uri + '/servers/'
+ create_server_response_body["server"]["id"])
delete_server_response = self.successResultOf(delete_server)
self.assertEqual(delete_server_response.code, 500)
# get server and verify the server was not deleted
get_server = request(self, self.root, "GET", self.uri + '/servers/' +
create_server_response_body["server"]["id"])
get_server_response = self.successResultOf(get_server)
self.assertEquals(get_server_response.code, 200)
# delete server again and verify the response
delete_server = request(self, self.root, "DELETE", self.uri + '/servers/'
+ create_server_response_body["server"]["id"])
delete_server_response = self.successResultOf(delete_server)
self.assertEqual(delete_server_response.code, 204)
self.assertEqual(self.successResultOf(treq.content(delete_server_response)),
b"")
# get server and verify the server was deleted this time
get_server = request(self, self.root, "GET", self.uri + '/servers/' +
create_server_response_body["server"]["id"])
get_server_response = self.successResultOf(get_server)
self.assertEquals(get_server_response.code, 404)
def test_get_invalid_image(self):
"""
Test to verify :func:`get_image` when invalid image from the
:obj: `mimic_presets` is provided or if image id ends with Z.
"""
get_server_image = request(self, self.root, "GET", self.uri +
'/images/test-image-idZ')
get_server_image_response = self.successResultOf(get_server_image)
self.assertEqual(get_server_image_response.code, 400)
def test_get_server_flavor(self):
"""
Test to verify :func:`get_flavor` when invalid flavor from the
:obj: `mimic_presets` is provided.
"""
get_server_flavor = request(self, self.root, "GET", self.uri +
'/flavors/1')
get_server_flavor_response = self.successResultOf(get_server_flavor)
self.assertEqual(get_server_flavor_response.code, 400)