171 lines
6.5 KiB
Python
171 lines
6.5 KiB
Python
# Copyright 2016 Red Hat, Inc
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# Copyright 2017 Rackspace Australia
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# Copyright 2019 Aptira Pty Ltd
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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 mock
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import os
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import six
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import tempfile
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from nova import exception
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import nova.privsep.path
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from nova import test
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from nova.tests import fixtures
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class FileTestCase(test.NoDBTestCase):
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"""Test file related utility methods."""
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def setUp(self):
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super(FileTestCase, self).setUp()
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self.useFixture(fixtures.PrivsepFixture())
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@mock.patch('os.path.exists', return_value=True)
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def test_readfile(self, mock_exists):
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mock_open = mock.mock_open(read_data='hello world')
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with mock.patch.object(six.moves.builtins, 'open',
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new=mock_open):
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self.assertEqual('hello world',
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nova.privsep.path.readfile('/fake/path'))
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@mock.patch('os.path.exists', return_value=False)
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def test_readfile_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.readfile,
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'/fake/path')
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@mock.patch('os.path.exists', return_value=True)
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def test_write(self, mock_exists):
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mock_open = mock.mock_open()
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with mock.patch.object(six.moves.builtins, 'open',
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new=mock_open):
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nova.privsep.path.writefile('/fake/path/file', 'w', 'foo')
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handle = mock_open()
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mock_exists.assert_called_with('/fake/path')
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self.assertTrue(mock.call('/fake/path/file', 'w') in
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mock_open.mock_calls)
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handle.write.assert_called_with('foo')
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@mock.patch('os.path.exists', return_value=False)
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def test_write_dir_missing(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.writefile,
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'/fake/path', 'w', 'foo')
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('os.readlink')
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def test_readlink(self, mock_readlink, mock_exists):
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nova.privsep.path.readlink('/fake/path')
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mock_exists.assert_called_with('/fake/path')
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mock_readlink.assert_called_with('/fake/path')
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@mock.patch('os.path.exists', return_value=False)
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def test_readlink_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.readlink,
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'/fake/path')
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('os.chown')
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def test_chown(self, mock_chown, mock_exists):
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nova.privsep.path.chown('/fake/path', uid=42, gid=43)
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mock_exists.assert_called_with('/fake/path')
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mock_chown.assert_called_with('/fake/path', 42, 43)
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@mock.patch('os.path.exists', return_value=False)
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def test_chown_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.chown,
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'/fake/path')
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@mock.patch('oslo_utils.fileutils.ensure_tree')
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def test_makedirs(self, mock_ensure_tree):
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nova.privsep.path.makedirs('/fake/path')
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mock_ensure_tree.assert_called_with('/fake/path')
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('os.chmod')
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def test_chmod(self, mock_chmod, mock_exists):
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nova.privsep.path.chmod('/fake/path', 0x666)
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mock_exists.assert_called_with('/fake/path')
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mock_chmod.assert_called_with('/fake/path', 0x666)
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@mock.patch('os.path.exists', return_value=False)
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def test_chmod_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.chmod,
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'/fake/path', 0x666)
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('os.utime')
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def test_utime(self, mock_utime, mock_exists):
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nova.privsep.path.utime('/fake/path')
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mock_exists.assert_called_with('/fake/path')
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mock_utime.assert_called_with('/fake/path', None)
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@mock.patch('os.path.exists', return_value=False)
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def test_utime_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.utime,
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'/fake/path')
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@mock.patch('os.path.exists', return_value=True)
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@mock.patch('os.rmdir')
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def test_rmdir(self, mock_rmdir, mock_exists):
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nova.privsep.path.rmdir('/fake/path')
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mock_exists.assert_called_with('/fake/path')
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mock_rmdir.assert_called_with('/fake/path')
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@mock.patch('os.path.exists', return_value=False)
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def test_rmdir_file_not_found(self, mock_exists):
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self.assertRaises(exception.FileNotFound,
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nova.privsep.path.rmdir,
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'/fake/path')
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@mock.patch('os.path.exists', return_value=True)
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def test_exists(self, mock_exists):
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nova.privsep.path.path.exists('/fake/path')
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mock_exists.assert_called_with('/fake/path')
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class LastBytesTestCase(test.NoDBTestCase):
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"""Test the last_bytes() utility method."""
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def setUp(self):
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super(LastBytesTestCase, self).setUp()
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self.f = six.BytesIO(b'1234567890')
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def test_truncated(self):
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self.f.seek(0, os.SEEK_SET)
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out, remaining = nova.privsep.path._last_bytes_inner(self.f, 5)
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self.assertEqual(out, b'67890')
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self.assertGreater(remaining, 0)
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def test_read_all(self):
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self.f.seek(0, os.SEEK_SET)
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out, remaining = nova.privsep.path._last_bytes_inner(self.f, 1000)
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self.assertEqual(out, b'1234567890')
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self.assertFalse(remaining > 0)
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def test_seek_too_far_real_file(self):
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# StringIO doesn't raise IOError if you see past the start of the file.
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with tempfile.TemporaryFile() as flo:
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content = b'1234567890'
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flo.write(content)
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self.assertEqual(
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(content, 0),
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nova.privsep.path._last_bytes_inner(flo, 1000))
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