41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import tempfile
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import unittest
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import shutil
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from mock import patch
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from lib.misc_utils import ensure_block_device
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class EnsureBlockDeviceTestCase(unittest.TestCase):
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@patch("lib.misc_utils.is_block_device")
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def test_symlinks_are_resolved(self, mock_function):
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"""
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Ensure symlinks pointing to block devices are resolved when passed to
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ensure_block_device.
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"""
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# Create a temporary symlink pointing to /dev/null
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temp_dir = tempfile.mkdtemp()
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link_path = os.path.join(temp_dir, "null_link")
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os.symlink("/dev/null", link_path)
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result = ensure_block_device(link_path)
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assert mock_function.called
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self.assertEqual("/dev/null", result)
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shutil.rmtree(temp_dir)
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