78fd35ac55
Progress on bp:virt-driver-cleanup This series of patches converts the virt drivers to loading via importutils making it possible to add a virt driver without changing core code. It deprecates the use of connection_type in favor of a full driver name in compute_driver. Based on email thread with Vish and Jay Pipes on approaches to do this. Change-Id: I48366ec7efc7b095859988e5e6ac5a853b98b8a7
273 lines
9.8 KiB
Python
273 lines
9.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 University of Southern California
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import __builtin__
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import functools
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import mox
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import StringIO
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from nova.compute import power_state
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from nova import exception
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from nova import flags
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from nova.openstack.common import jsonutils
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from nova import test
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from nova.tests import fake_utils
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from nova.virt.baremetal import dom
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from nova.virt.baremetal import proxy
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FLAGS = flags.FLAGS
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# Same fake_domains is used by different classes,
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# but different fake_file is used by different classes for unit test.
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fake_domains = [{'status': 1, 'name': 'instance-00000001',
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'memory_kb': 16777216, 'kernel_id': '1896115634',
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'ramdisk_id': '', 'image_id': '1552326678',
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'vcpus': 1, 'node_id': 6,
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'mac_address': '02:16:3e:01:4e:c9',
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'ip_address': '10.5.1.2'}]
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class DomainReadWriteTestCase(test.TestCase):
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def setUp(self):
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super(DomainReadWriteTestCase, self).setUp()
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self.flags(baremetal_driver='fake')
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def test_read_domain_with_empty_list(self):
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"""Read a file that contains no domains"""
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self.mox.StubOutWithMock(__builtin__, 'open')
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fake_file = StringIO.StringIO('[]')
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open('/tftpboot/test_fake_dom_file', 'r').AndReturn(fake_file)
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self.mox.ReplayAll()
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domains = dom.read_domains('/tftpboot/test_fake_dom_file')
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self.assertEqual(domains, [])
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def test_read_domain(self):
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"""Read a file that contains at least one domain"""
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fake_file = StringIO.StringIO('''[{"status": 1,
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"image_id": "1552326678", "vcpus": 1, "node_id": 6,
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"name": "instance-00000001", "memory_kb": 16777216,
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"mac_address": "02:16:3e:01:4e:c9", "kernel_id": "1896115634",
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"ramdisk_id": "", "ip_address": "10.5.1.2"}]''')
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self.mox.StubOutWithMock(__builtin__, 'open')
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open('/tftpboot/test_fake_dom_file', 'r').AndReturn(fake_file)
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self.mox.ReplayAll()
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domains = dom.read_domains('/tftpboot/test_fake_dom_file')
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self.assertEqual(domains, fake_domains)
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def test_read_no_file(self):
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"""Try to read when the file does not exist
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This should through and IO exception"""
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self.mox.StubOutWithMock(__builtin__, 'open')
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open('/tftpboot/test_fake_dom_file',
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'r').AndRaise(IOError(2, 'No such file or directory',
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'/tftpboot/test_fake_dom_file'))
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self.mox.ReplayAll()
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self.assertRaises(exception.NotFound, dom.read_domains,
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'/tftpboot/test_fake_dom_file')
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def assertJSONEquals(self, x, y):
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"""Check if two json strings represent the equivalent Python object"""
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self.assertEquals(jsonutils.loads(x), jsonutils.loads(y))
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return jsonutils.loads(x) == jsonutils.loads(y)
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def test_write_domain(self):
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"""Write the domain to file"""
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self.mox.StubOutWithMock(__builtin__, 'open')
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mock_file = self.mox.CreateMock(file)
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expected_json = '''[{"status": 1,
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"image_id": "1552326678", "vcpus": 1, "node_id": 6,
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"name": "instance-00000001", "memory_kb": 16777216,
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"mac_address": "02:16:3e:01:4e:c9", "kernel_id": "1896115634",
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"ramdisk_id": "", "ip_address": "10.5.1.2"}]'''
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open('/tftpboot/test_fake_dom_file', 'w').AndReturn(mock_file)
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# Check if the argument to file.write() represents the same
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# Python object as expected_json
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# We can't do an exact string comparison
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# because of ordering and whitespace
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mock_file.write(mox.Func(functools.partial(self.assertJSONEquals,
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expected_json)))
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mock_file.close()
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self.mox.ReplayAll()
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dom.write_domains('/tftpboot/test_fake_dom_file', fake_domains)
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class BareMetalDomTestCase(test.TestCase):
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def setUp(self):
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super(BareMetalDomTestCase, self).setUp()
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self.flags(baremetal_driver='fake')
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# Stub out utils.execute
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fake_utils.stub_out_utils_execute(self.stubs)
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def tearDown(self):
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super(BareMetalDomTestCase, self).tearDown()
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# Reset the singleton state
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dom.BareMetalDom._instance = None
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dom.BareMetalDom._is_init = False
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def test_read_domain_only_once(self):
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"""Confirm that the domain is read from a file only once,
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even if the object is instantiated multiple times"""
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self.mox.StubOutWithMock(dom, 'read_domains')
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self.mox.StubOutWithMock(dom, 'write_domains')
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dom.read_domains('/tftpboot/test_fake_dom_file').AndReturn([])
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dom.write_domains('/tftpboot/test_fake_dom_file', [])
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self.mox.ReplayAll()
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# Instantiate multiple instances
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x = dom.BareMetalDom()
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x = dom.BareMetalDom()
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x = dom.BareMetalDom()
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def test_init_no_domains(self):
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# Create the mock objects
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self.mox.StubOutWithMock(dom, 'read_domains')
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self.mox.StubOutWithMock(dom, 'write_domains')
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dom.read_domains('/tftpboot/test_fake_dom_file').AndReturn([])
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dom.write_domains('/tftpboot/test_fake_dom_file', [])
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self.mox.ReplayAll()
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# Code under test
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bmdom = dom.BareMetalDom()
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# Expectd values
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self.assertEqual(bmdom.fake_dom_nums, 0)
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def test_init_remove_non_running_domain(self):
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"""Check to see that all entries in the domain list are removed
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except for the one that is in the running state"""
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fake_file = StringIO.StringIO()
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domains = [dict(node_id=1, name='i-00000001',
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status=power_state.NOSTATE),
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dict(node_id=2, name='i-00000002', status=power_state.RUNNING),
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dict(node_id=3, name='i-00000003', status=power_state.BLOCKED),
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dict(node_id=4, name='i-00000004', status=power_state.PAUSED),
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dict(node_id=5, name='i-00000005', status=power_state.SHUTDOWN),
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dict(node_id=6, name='i-00000006', status=power_state.SHUTOFF),
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dict(node_id=7, name='i-00000007', status=power_state.CRASHED),
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dict(node_id=8, name='i-00000008', status=power_state.SUSPENDED),
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dict(node_id=9, name='i-00000009', status=power_state.FAILED)]
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# Create the mock objects
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self.mox.StubOutWithMock(dom, 'read_domains')
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self.mox.StubOutWithMock(dom, 'write_domains')
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dom.read_domains('/tftpboot/test_fake_dom_file').AndReturn(domains)
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dom.write_domains('/tftpboot/test_fake_dom_file', domains)
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self.mox.ReplayAll()
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# Code under test
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bmdom = dom.BareMetalDom()
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self.assertEqual(bmdom.domains, [{'node_id': 2,
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'name': 'i-00000002',
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'status': power_state.RUNNING}])
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self.assertEqual(bmdom.fake_dom_nums, 1)
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def test_find_domain(self):
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domain = {'status': 1, 'name': 'instance-00000001',
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'memory_kb': 16777216, 'kernel_id': '1896115634',
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'ramdisk_id': '', 'image_id': '1552326678',
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'vcpus': 1, 'node_id': 6,
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'mac_address': '02:16:3e:01:4e:c9',
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'ip_address': '10.5.1.2'}
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# Create the mock objects
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self.mox.StubOutWithMock(dom, 'read_domains')
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self.mox.StubOutWithMock(dom, 'write_domains')
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# Expected calls
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dom.read_domains('/tftpboot/'
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'test_fake_dom_file').AndReturn(fake_domains)
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dom.write_domains('/tftpboot/test_fake_dom_file', fake_domains)
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self.mox.ReplayAll()
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# Code under test
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bmdom = dom.BareMetalDom()
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# Expected values
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self.assertEquals(bmdom.find_domain('instance-00000001'), domain)
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class ProxyBareMetalTestCase(test.TestCase):
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test_ip = '10.11.12.13'
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test_instance = {'memory_kb': '1024000',
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'basepath': '/some/path',
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'bridge_name': 'br100',
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'mac_address': '02:12:34:46:56:67',
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'vcpus': 2,
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'project_id': 'fake',
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'bridge': 'br101',
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'image_ref': '123456',
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'instance_type_id': '5'} # m1.small
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def setUp(self):
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super(ProxyBareMetalTestCase, self).setUp()
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self.flags(baremetal_driver='fake')
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fake_utils.stub_out_utils_execute(self.stubs)
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def test_get_info(self):
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# Create the mock objects
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self.mox.StubOutWithMock(dom, 'read_domains')
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self.mox.StubOutWithMock(dom, 'write_domains')
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# Expected calls
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dom.read_domains('/tftpboot/'
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'test_fake_dom_file').AndReturn(fake_domains)
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dom.write_domains('/tftpboot/test_fake_dom_file', fake_domains)
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self.mox.ReplayAll()
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# Code under test
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conn = proxy.ProxyConnection(True)
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# TODO(mikalstill): this is not a very good fake instance
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info = conn.get_info({'name': 'instance-00000001'})
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# Expected values
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self.assertEquals(info['mem'], 16777216)
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self.assertEquals(info['state'], 1)
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self.assertEquals(info['num_cpu'], 1)
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self.assertEquals(info['cpu_time'], 100)
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self.assertEquals(info['max_mem'], 16777216)
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