import unittest
from unittest.mock import MagicMock, patch

# Import the function to be tested
from your_notebook import my_function

class TestMyFunction(unittest.TestCase):
@patch('your_notebook.dbutils')
def test_my_function(self, mock_dbutils):
# Create a mock for dbutils.fs
mock_fs = MagicMock()
mock_dbutils.fs = mock_fs

# Define the behavior of the mock methods
mock_fs.mkdirs.return_value = None
mock_fs.ls.return_value = ["file1", "file2"]

# Call the function to be tested
result = my_function()

# Assertions

if __name__ == '__main__':
unittest.main()