cc57067355
Add a fixture for creating real files on the filesystem with contents, to replace the implementation inside the test base class. Blueprint oslotest-refactor-test-base-class Change-Id: Ibca716d1054da973583e5bb4694ef1d64750d50a
71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
# 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 os
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import tempfile
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import fixtures
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import six
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class CreateFileWithContent(fixtures.Fixture):
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"""Create a temporary file with the given content.
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Creates a file using a predictable name, to be used by tests for
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code that need a filename to load data or otherwise interact with
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the real filesystem.
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.. warning::
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It is the responsibility of the caller to ensure that the file
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is removed.
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Users of this fixture may also want to use
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:class:`fixtures.NestedTempfile` to set the temporary directory
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somewhere safe and to ensure the files are cleaned up.
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.. py:attribute:: path
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The canonical name of the file created.
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:param filename: Base file name or full literal path to the file
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to be created.
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:param contents: The data to write to the file. Unicode data will
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be encoded before being written.
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:param ext: An extension to add to filename.
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:param encoding: An encoding to use for unicode data (ignored for
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byte strings).
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"""
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def __init__(self, filename, contents, ext='.conf', encoding='utf-8'):
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self._filename = filename
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self._contents = contents
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self._ext = ext
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self._encoding = encoding
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def setUp(self):
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super(CreateFileWithContent, self).setUp()
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contents = self._contents
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if isinstance(contents, six.text_type):
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contents = contents.encode(self._encoding)
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if not os.path.isabs(self._filename):
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(fd, self.path) = tempfile.mkstemp(prefix=self._filename,
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suffix=self._ext)
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else:
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self.path = self._filename + self._ext
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fd = os.open(self.path, os.O_CREAT | os.O_WRONLY)
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try:
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os.write(fd, contents)
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finally:
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os.close(fd)
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