1d2c677641
(Well, except for starting privsep daemons, oh and of course os-brick wants to know what our root helper is for some reason that is a bit beyond me.) Yes that's right, we now live in the future and no longer need the run_as_root infrastructure in nova.utils. I'm sure this breaks some out of tree drivers, but they've had several releases to notice that we're moving in this direction and its pretty easy for them to fix themselves these days. Change-Id: I99c66558938db9beb0bda33d27a8e36b26b8fcac
95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
# Copyright 2012 Michael Still
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# All Rights Reserved.
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#
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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 fixtures
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import mock
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from nova import test
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from nova.virt.disk.mount import loop
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from nova.virt.image import model as imgmodel
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def _fake_noop(*args, **kwargs):
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return
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class LoopTestCase(test.NoDBTestCase):
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def setUp(self):
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super(LoopTestCase, self).setUp()
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self.file = imgmodel.LocalFileImage("/some/file.qcow2",
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imgmodel.FORMAT_QCOW2)
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@mock.patch('nova.privsep.fs.loopsetup', return_value=('/dev/loop0', ''))
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@mock.patch('nova.privsep.fs.loopremove')
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def test_get_dev(self, mock_loopremove, mock_loopsetup):
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tempdir = self.useFixture(fixtures.TempDir()).path
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mount = loop.LoopMount(self.file, tempdir)
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# No error logged, device consumed
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self.assertTrue(mount.get_dev())
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self.assertTrue(mount.linked)
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self.assertEqual('', mount.error)
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self.assertEqual('/dev/loop0', mount.device)
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# Free
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mount.unget_dev()
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self.assertFalse(mount.linked)
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self.assertEqual('', mount.error)
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self.assertIsNone(mount.device)
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@mock.patch('nova.privsep.fs.loopsetup', return_value=('', 'doh'))
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def test_inner_get_dev_fails(self, mock_loopsetup):
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tempdir = self.useFixture(fixtures.TempDir()).path
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mount = loop.LoopMount(self.file, tempdir)
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# No error logged, device consumed
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self.assertFalse(mount._inner_get_dev())
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self.assertFalse(mount.linked)
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self.assertNotEqual('', mount.error)
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self.assertIsNone(mount.device)
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# Free
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mount.unget_dev()
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self.assertFalse(mount.linked)
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self.assertIsNone(mount.device)
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@mock.patch('nova.privsep.fs.loopsetup', return_value=('', 'doh'))
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def test_get_dev_timeout(self, mock_loopsetup):
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tempdir = self.useFixture(fixtures.TempDir()).path
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mount = loop.LoopMount(self.file, tempdir)
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self.useFixture(fixtures.MonkeyPatch('time.sleep', _fake_noop))
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self.useFixture(fixtures.MonkeyPatch(('nova.virt.disk.mount.api.'
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'MAX_DEVICE_WAIT'), -10))
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# Always fail to get a device
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def fake_get_dev_fails():
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return False
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mount._inner_get_dev = fake_get_dev_fails
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# Fail to get a device
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self.assertFalse(mount.get_dev())
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@mock.patch('nova.privsep.fs.loopremove')
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def test_unget_dev(self, mock_loopremove):
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tempdir = self.useFixture(fixtures.TempDir()).path
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mount = loop.LoopMount(self.file, tempdir)
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# This just checks that a free of something we don't have doesn't
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# throw an exception
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mount.unget_dev()
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