charm-swift-storage/unit_tests/test_misc_utils.py

27 lines
774 B
Python

import os
import tempfile
import unittest
import shutil
from mock import patch
from lib.misc_utils import ensure_block_device
class EnsureBlockDeviceTestCase(unittest.TestCase):
@patch("lib.misc_utils.is_block_device")
def test_symlinks_are_resolved(self, mock_function):
"""
Ensure symlinks pointing to block devices are resolved when passed to
ensure_block_device.
"""
# Create a temporary symlink pointing to /dev/null
temp_dir = tempfile.mkdtemp()
link_path = os.path.join(temp_dir, "null_link")
os.symlink("/dev/null", link_path)
result = ensure_block_device(link_path)
assert mock_function.called
self.assertEqual("/dev/null", result)
shutil.rmtree(temp_dir)