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"""Tests for the clear cache operation from proselint.command_line."""
import os
import unittest
from proselint import command_line as cl
try:
from unittest import mock
except ImportError:
# Py2.x
from unittest import mock
try:
from builtins import PermissionError
except ImportError:
class PermissionError(OSError):
"""Introduced in Py3.3, emulate for earlier versions."""
def __init__(self, *args, **kwargs):
"""Constructor."""
OSError.__init__(self, *args, **kwargs)
try:
from builtins import FileNotFoundError
except ImportError:
class FileNotFoundError(OSError):
"""Introduced in Py3.3, emulate for earlier versions."""
def __init__(self, *args, **kwargs):
"""Constructor."""
OSError.__init__(self, *args, **kwargs)
try:
from builtins import IsADirectoryError
except ImportError:
class IsADirectoryError(OSError):
"""Introduced in Py3.3, emulate for earlier versions."""
def __init__(self, *args, **kwargs):
"""Constructor."""
OSError.__init__(self, *args, **kwargs)
class Test__delete_compiled_python_files(unittest.TestCase):
"""proselint.command_line._delete_compiled_python_files()."""
def setUp(self):
"""init common data."""
self.base_dir = '.'
self.python_file = 'a.py'
self.pyc_file = 'a.pyc'
self.dot_pyc = '.pyc'
self.files = [
(self.base_dir, ('dummy',), (self.pyc_file,
self.python_file,
self.dot_pyc))
]
self.pyc_file_path = os.path.join(self.base_dir, self.pyc_file)
self.python_file_path = os.path.join(self.base_dir, self.python_file)
self.dot_pyc_path = os.path.join(self.base_dir, self.python_file)
@mock.patch('os.walk')
@mock.patch('os.remove')
def test_delete_pyc_file(self, mock_remove, mock_walk):
"""Ensure 'pyc' files are removed."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
mock_remove.assert_called_with(self.pyc_file_path)
@mock.patch('os.walk')
@mock.patch('os.remove')
def test_files_not_deleted(self, mock_remove, mock_walk):
"""Ensure non 'pyc' files are not removed."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
with self.assertRaises(AssertionError):
mock_remove.assert_called_with(self.python_file_path)
with self.assertRaises(AssertionError):
mock_remove.assert_called_with(self.dot_pyc_path)
@mock.patch('os.walk')
@mock.patch('os.remove', side_effect=PermissionError)
def test_no_permission(self, mock_remove, mock_walk):
"""Ignore if unable to delete files."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
@mock.patch('os.walk')
@mock.patch('os.remove', side_effect=OSError)
def test_on_oserror(self, mock_remove, mock_walk):
"""Ignore if OSError."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
@mock.patch('os.walk')
@mock.patch('os.remove', side_effect=FileNotFoundError)
def test_files_not_found(self, mock_remove, mock_walk):
"""Ignore if file not found."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
@mock.patch('os.walk')
@mock.patch('os.remove', side_effect=IsADirectoryError)
def test__remove_dir(self, mock_remove, mock_walk):
"""Ignore if attempt to delete a directory."""
mock_walk.return_value = self.files
cl._delete_compiled_python_files()
class Test__delete_cache(unittest.TestCase):
"""proselint.command_line.__delete_cache()."""
def setUp(self):
"""Init common data."""
self.cache_path = os.path.join("proselint", "cache")
@mock.patch('shutil.rmtree')
def test_rm_cache(self, mock_rmtree):
"""Correct directory is removed."""
cl._delete_cache()
mock_rmtree.assert_called_with(self.cache_path)
@mock.patch('shutil.rmtree', side_effect=PermissionError)
def test_no_permission(self, mock_rmtree):
"""Ignore if unable to delete."""
cl._delete_cache()
@mock.patch('shutil.rmtree', side_effect=OSError)
def test_on_oserror(self, mock_rmtree):
"""Ignore if general OSError."""
cl._delete_cache()
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