| import os | 
 | import sys | 
 | import time | 
 | import stat | 
 | import socket | 
 | import email | 
 | import email.message | 
 | import re | 
 | import io | 
 | import shutil | 
 | import tempfile | 
 | from test import support | 
 | import unittest | 
 | import textwrap | 
 | import mailbox | 
 | import glob | 
 | try: | 
 |     import fcntl | 
 | except ImportError: | 
 |     pass | 
 |  | 
 |  | 
 | class TestBase: | 
 |  | 
 |     def _check_sample(self, msg): | 
 |         # Inspect a mailbox.Message representation of the sample message | 
 |         self.assertIsInstance(msg, email.message.Message) | 
 |         self.assertIsInstance(msg, mailbox.Message) | 
 |         for key, value in _sample_headers.items(): | 
 |             self.assertIn(value, msg.get_all(key)) | 
 |         self.assertTrue(msg.is_multipart()) | 
 |         self.assertEqual(len(msg.get_payload()), len(_sample_payloads)) | 
 |         for i, payload in enumerate(_sample_payloads): | 
 |             part = msg.get_payload(i) | 
 |             self.assertIsInstance(part, email.message.Message) | 
 |             self.assertNotIsInstance(part, mailbox.Message) | 
 |             self.assertEqual(part.get_payload(), payload) | 
 |  | 
 |     def _delete_recursively(self, target): | 
 |         # Delete a file or delete a directory recursively | 
 |         if os.path.isdir(target): | 
 |             shutil.rmtree(target) | 
 |         elif os.path.exists(target): | 
 |             os.remove(target) | 
 |  | 
 |  | 
 | class TestMailbox(TestBase): | 
 |  | 
 |     maxDiff = None | 
 |  | 
 |     _factory = None     # Overridden by subclasses to reuse tests | 
 |     _template = 'From: foo\n\n%s' | 
 |  | 
 |     def setUp(self): | 
 |         self._path = support.TESTFN | 
 |         self._delete_recursively(self._path) | 
 |         self._box = self._factory(self._path) | 
 |  | 
 |     def tearDown(self): | 
 |         self._box.close() | 
 |         self._delete_recursively(self._path) | 
 |  | 
 |     def test_add(self): | 
 |         # Add copies of a sample message | 
 |         keys = [] | 
 |         keys.append(self._box.add(self._template % 0)) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         keys.append(self._box.add(mailbox.Message(_sample_message))) | 
 |         self.assertEqual(len(self._box), 2) | 
 |         keys.append(self._box.add(email.message_from_string(_sample_message))) | 
 |         self.assertEqual(len(self._box), 3) | 
 |         keys.append(self._box.add(io.BytesIO(_bytes_sample_message))) | 
 |         self.assertEqual(len(self._box), 4) | 
 |         keys.append(self._box.add(_sample_message)) | 
 |         self.assertEqual(len(self._box), 5) | 
 |         keys.append(self._box.add(_bytes_sample_message)) | 
 |         self.assertEqual(len(self._box), 6) | 
 |         with self.assertWarns(DeprecationWarning): | 
 |             keys.append(self._box.add( | 
 |                 io.TextIOWrapper(io.BytesIO(_bytes_sample_message)))) | 
 |         self.assertEqual(len(self._box), 7) | 
 |         self.assertEqual(self._box.get_string(keys[0]), self._template % 0) | 
 |         for i in (1, 2, 3, 4, 5, 6): | 
 |             self._check_sample(self._box[keys[i]]) | 
 |  | 
 |     _nonascii_msg = textwrap.dedent("""\ | 
 |             From: foo | 
 |             Subject: Falinaptár házhozszállítással. Már rendeltél? | 
 |  | 
 |             0 | 
 |             """) | 
 |  | 
 |     def test_add_invalid_8bit_bytes_header(self): | 
 |         key = self._box.add(self._nonascii_msg.encode('latin1')) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         self.assertEqual(self._box.get_bytes(key), | 
 |             self._nonascii_msg.encode('latin1')) | 
 |  | 
 |     def test_invalid_nonascii_header_as_string(self): | 
 |         subj = self._nonascii_msg.splitlines()[1] | 
 |         key = self._box.add(subj.encode('latin1')) | 
 |         self.assertEqual(self._box.get_string(key), | 
 |             'Subject: =?unknown-8bit?b?RmFsaW5hcHThciBo4Xpob3pzeuFsbO104XNz' | 
 |             'YWwuIE3hciByZW5kZWx06Ww/?=\n\n') | 
 |  | 
 |     def test_add_nonascii_string_header_raises(self): | 
 |         with self.assertRaisesRegex(ValueError, "ASCII-only"): | 
 |             self._box.add(self._nonascii_msg) | 
 |         self._box.flush() | 
 |         self.assertEqual(len(self._box), 0) | 
 |         self.assertMailboxEmpty() | 
 |  | 
 |     def test_add_that_raises_leaves_mailbox_empty(self): | 
 |         def raiser(*args, **kw): | 
 |             raise Exception("a fake error") | 
 |         support.patch(self, email.generator.BytesGenerator, 'flatten', raiser) | 
 |         with self.assertRaises(Exception): | 
 |             self._box.add(email.message_from_string("From: Alphöso")) | 
 |         self.assertEqual(len(self._box), 0) | 
 |         self._box.close() | 
 |         self.assertMailboxEmpty() | 
 |  | 
 |     _non_latin_bin_msg = textwrap.dedent("""\ | 
 |         From: foo@bar.com | 
 |         To: báz | 
 |         Subject: Maintenant je vous présente mon collègue, le pouf célèbre | 
 |         \tJean de Baddie | 
 |         Mime-Version: 1.0 | 
 |         Content-Type: text/plain; charset="utf-8" | 
 |         Content-Transfer-Encoding: 8bit | 
 |  | 
 |         Да, они летят. | 
 |         """).encode('utf-8') | 
 |  | 
 |     def test_add_8bit_body(self): | 
 |         key = self._box.add(self._non_latin_bin_msg) | 
 |         self.assertEqual(self._box.get_bytes(key), | 
 |                          self._non_latin_bin_msg) | 
 |         with self._box.get_file(key) as f: | 
 |             self.assertEqual(f.read(), | 
 |                              self._non_latin_bin_msg.replace(b'\n', | 
 |                                 os.linesep.encode())) | 
 |         self.assertEqual(self._box[key].get_payload(), | 
 |                         "Да, они летят.\n") | 
 |  | 
 |     def test_add_binary_file(self): | 
 |         with tempfile.TemporaryFile('wb+') as f: | 
 |             f.write(_bytes_sample_message) | 
 |             f.seek(0) | 
 |             key = self._box.add(f) | 
 |         # See issue 11062 | 
 |         if not isinstance(self._box, mailbox.Babyl): | 
 |             self.assertEqual(self._box.get_bytes(key).split(b'\n'), | 
 |                 _bytes_sample_message.split(b'\n')) | 
 |  | 
 |     def test_add_binary_nonascii_file(self): | 
 |         with tempfile.TemporaryFile('wb+') as f: | 
 |             f.write(self._non_latin_bin_msg) | 
 |             f.seek(0) | 
 |             key = self._box.add(f) | 
 |         # See issue 11062 | 
 |         if not isinstance(self._box, mailbox.Babyl): | 
 |             self.assertEqual(self._box.get_bytes(key).split(b'\n'), | 
 |                 self._non_latin_bin_msg.split(b'\n')) | 
 |  | 
 |     def test_add_text_file_warns(self): | 
 |         with tempfile.TemporaryFile('w+') as f: | 
 |             f.write(_sample_message) | 
 |             f.seek(0) | 
 |             with self.assertWarns(DeprecationWarning): | 
 |                 key = self._box.add(f) | 
 |         # See issue 11062 | 
 |         if not isinstance(self._box, mailbox.Babyl): | 
 |             self.assertEqual(self._box.get_bytes(key).split(b'\n'), | 
 |                 _bytes_sample_message.split(b'\n')) | 
 |  | 
 |     def test_add_StringIO_warns(self): | 
 |         with self.assertWarns(DeprecationWarning): | 
 |             key = self._box.add(io.StringIO(self._template % "0")) | 
 |         self.assertEqual(self._box.get_string(key), self._template % "0") | 
 |  | 
 |     def test_add_nonascii_StringIO_raises(self): | 
 |         with self.assertWarns(DeprecationWarning): | 
 |             with self.assertRaisesRegex(ValueError, "ASCII-only"): | 
 |                 self._box.add(io.StringIO(self._nonascii_msg)) | 
 |         self.assertEqual(len(self._box), 0) | 
 |         self._box.close() | 
 |         self.assertMailboxEmpty() | 
 |  | 
 |     def test_remove(self): | 
 |         # Remove messages using remove() | 
 |         self._test_remove_or_delitem(self._box.remove) | 
 |  | 
 |     def test_delitem(self): | 
 |         # Remove messages using __delitem__() | 
 |         self._test_remove_or_delitem(self._box.__delitem__) | 
 |  | 
 |     def _test_remove_or_delitem(self, method): | 
 |         # (Used by test_remove() and test_delitem().) | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         self.assertEqual(len(self._box), 2) | 
 |         method(key0) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         self.assertRaises(KeyError, lambda: self._box[key0]) | 
 |         self.assertRaises(KeyError, lambda: method(key0)) | 
 |         self.assertEqual(self._box.get_string(key1), self._template % 1) | 
 |         key2 = self._box.add(self._template % 2) | 
 |         self.assertEqual(len(self._box), 2) | 
 |         method(key2) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         self.assertRaises(KeyError, lambda: self._box[key2]) | 
 |         self.assertRaises(KeyError, lambda: method(key2)) | 
 |         self.assertEqual(self._box.get_string(key1), self._template % 1) | 
 |         method(key1) | 
 |         self.assertEqual(len(self._box), 0) | 
 |         self.assertRaises(KeyError, lambda: self._box[key1]) | 
 |         self.assertRaises(KeyError, lambda: method(key1)) | 
 |  | 
 |     def test_discard(self, repetitions=10): | 
 |         # Discard messages | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         self.assertEqual(len(self._box), 2) | 
 |         self._box.discard(key0) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         self.assertRaises(KeyError, lambda: self._box[key0]) | 
 |         self._box.discard(key0) | 
 |         self.assertEqual(len(self._box), 1) | 
 |         self.assertRaises(KeyError, lambda: self._box[key0]) | 
 |  | 
 |     def test_get(self): | 
 |         # Retrieve messages using get() | 
 |         key0 = self._box.add(self._template % 0) | 
 |         msg = self._box.get(key0) | 
 |         self.assertEqual(msg['from'], 'foo') | 
 |         self.assertEqual(msg.get_payload(), '0') | 
 |         self.assertIs(self._box.get('foo'), None) | 
 |         self.assertIs(self._box.get('foo', False), False) | 
 |         self._box.close() | 
 |         self._box = self._factory(self._path) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         msg = self._box.get(key1) | 
 |         self.assertEqual(msg['from'], 'foo') | 
 |         self.assertEqual(msg.get_payload(), '1') | 
 |  | 
 |     def test_getitem(self): | 
 |         # Retrieve message using __getitem__() | 
 |         key0 = self._box.add(self._template % 0) | 
 |         msg = self._box[key0] | 
 |         self.assertEqual(msg['from'], 'foo') | 
 |         self.assertEqual(msg.get_payload(), '0') | 
 |         self.assertRaises(KeyError, lambda: self._box['foo']) | 
 |         self._box.discard(key0) | 
 |         self.assertRaises(KeyError, lambda: self._box[key0]) | 
 |  | 
 |     def test_get_message(self): | 
 |         # Get Message representations of messages | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(_sample_message) | 
 |         msg0 = self._box.get_message(key0) | 
 |         self.assertIsInstance(msg0, mailbox.Message) | 
 |         self.assertEqual(msg0['from'], 'foo') | 
 |         self.assertEqual(msg0.get_payload(), '0') | 
 |         self._check_sample(self._box.get_message(key1)) | 
 |  | 
 |     def test_get_bytes(self): | 
 |         # Get bytes representations of messages | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(_sample_message) | 
 |         self.assertEqual(self._box.get_bytes(key0), | 
 |             (self._template % 0).encode('ascii')) | 
 |         self.assertEqual(self._box.get_bytes(key1), _bytes_sample_message) | 
 |  | 
 |     def test_get_string(self): | 
 |         # Get string representations of messages | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(_sample_message) | 
 |         self.assertEqual(self._box.get_string(key0), self._template % 0) | 
 |         self.assertEqual(self._box.get_string(key1).split('\n'), | 
 |                          _sample_message.split('\n')) | 
 |  | 
 |     def test_get_file(self): | 
 |         # Get file representations of messages | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(_sample_message) | 
 |         with self._box.get_file(key0) as file: | 
 |             data0 = file.read() | 
 |         with self._box.get_file(key1) as file: | 
 |             data1 = file.read() | 
 |         self.assertEqual(data0.decode('ascii').replace(os.linesep, '\n'), | 
 |                          self._template % 0) | 
 |         self.assertEqual(data1.decode('ascii').replace(os.linesep, '\n'), | 
 |                          _sample_message) | 
 |  | 
 |     def test_get_file_can_be_closed_twice(self): | 
 |         # Issue 11700 | 
 |         key = self._box.add(_sample_message) | 
 |         f = self._box.get_file(key) | 
 |         f.close() | 
 |         f.close() | 
 |  | 
 |     def test_iterkeys(self): | 
 |         # Get keys using iterkeys() | 
 |         self._check_iteration(self._box.keys, do_keys=True, do_values=False) | 
 |  | 
 |     def test_keys(self): | 
 |         # Get keys using keys() | 
 |         self._check_iteration(self._box.keys, do_keys=True, do_values=False) | 
 |  | 
 |     def test_itervalues(self): | 
 |         # Get values using itervalues() | 
 |         self._check_iteration(self._box.values, do_keys=False, | 
 |                               do_values=True) | 
 |  | 
 |     def test_iter(self): | 
 |         # Get values using __iter__() | 
 |         self._check_iteration(self._box.__iter__, do_keys=False, | 
 |                               do_values=True) | 
 |  | 
 |     def test_values(self): | 
 |         # Get values using values() | 
 |         self._check_iteration(self._box.values, do_keys=False, do_values=True) | 
 |  | 
 |     def test_iteritems(self): | 
 |         # Get keys and values using iteritems() | 
 |         self._check_iteration(self._box.items, do_keys=True, | 
 |                               do_values=True) | 
 |  | 
 |     def test_items(self): | 
 |         # Get keys and values using items() | 
 |         self._check_iteration(self._box.items, do_keys=True, do_values=True) | 
 |  | 
 |     def _check_iteration(self, method, do_keys, do_values, repetitions=10): | 
 |         for value in method(): | 
 |             self.fail("Not empty") | 
 |         keys, values = [], [] | 
 |         for i in range(repetitions): | 
 |             keys.append(self._box.add(self._template % i)) | 
 |             values.append(self._template % i) | 
 |         if do_keys and not do_values: | 
 |             returned_keys = list(method()) | 
 |         elif do_values and not do_keys: | 
 |             returned_values = list(method()) | 
 |         else: | 
 |             returned_keys, returned_values = [], [] | 
 |             for key, value in method(): | 
 |                 returned_keys.append(key) | 
 |                 returned_values.append(value) | 
 |         if do_keys: | 
 |             self.assertEqual(len(keys), len(returned_keys)) | 
 |             self.assertEqual(set(keys), set(returned_keys)) | 
 |         if do_values: | 
 |             count = 0 | 
 |             for value in returned_values: | 
 |                 self.assertEqual(value['from'], 'foo') | 
 |                 self.assertLess(int(value.get_payload()), repetitions) | 
 |                 count += 1 | 
 |             self.assertEqual(len(values), count) | 
 |  | 
 |     def test_contains(self): | 
 |         # Check existence of keys using __contains__() | 
 |         self.assertNotIn('foo', self._box) | 
 |         key0 = self._box.add(self._template % 0) | 
 |         self.assertIn(key0, self._box) | 
 |         self.assertNotIn('foo', self._box) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         self.assertIn(key1, self._box) | 
 |         self.assertIn(key0, self._box) | 
 |         self.assertNotIn('foo', self._box) | 
 |         self._box.remove(key0) | 
 |         self.assertNotIn(key0, self._box) | 
 |         self.assertIn(key1, self._box) | 
 |         self.assertNotIn('foo', self._box) | 
 |         self._box.remove(key1) | 
 |         self.assertNotIn(key1, self._box) | 
 |         self.assertNotIn(key0, self._box) | 
 |         self.assertNotIn('foo', self._box) | 
 |  | 
 |     def test_len(self, repetitions=10): | 
 |         # Get message count | 
 |         keys = [] | 
 |         for i in range(repetitions): | 
 |             self.assertEqual(len(self._box), i) | 
 |             keys.append(self._box.add(self._template % i)) | 
 |             self.assertEqual(len(self._box), i + 1) | 
 |         for i in range(repetitions): | 
 |             self.assertEqual(len(self._box), repetitions - i) | 
 |             self._box.remove(keys[i]) | 
 |             self.assertEqual(len(self._box), repetitions - i - 1) | 
 |  | 
 |     def test_set_item(self): | 
 |         # Modify messages using __setitem__() | 
 |         key0 = self._box.add(self._template % 'original 0') | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                          self._template % 'original 0') | 
 |         key1 = self._box.add(self._template % 'original 1') | 
 |         self.assertEqual(self._box.get_string(key1), | 
 |                          self._template % 'original 1') | 
 |         self._box[key0] = self._template % 'changed 0' | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                          self._template % 'changed 0') | 
 |         self._box[key1] = self._template % 'changed 1' | 
 |         self.assertEqual(self._box.get_string(key1), | 
 |                          self._template % 'changed 1') | 
 |         self._box[key0] = _sample_message | 
 |         self._check_sample(self._box[key0]) | 
 |         self._box[key1] = self._box[key0] | 
 |         self._check_sample(self._box[key1]) | 
 |         self._box[key0] = self._template % 'original 0' | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                      self._template % 'original 0') | 
 |         self._check_sample(self._box[key1]) | 
 |         self.assertRaises(KeyError, | 
 |                           lambda: self._box.__setitem__('foo', 'bar')) | 
 |         self.assertRaises(KeyError, lambda: self._box['foo']) | 
 |         self.assertEqual(len(self._box), 2) | 
 |  | 
 |     def test_clear(self, iterations=10): | 
 |         # Remove all messages using clear() | 
 |         keys = [] | 
 |         for i in range(iterations): | 
 |             self._box.add(self._template % i) | 
 |         for i, key in enumerate(keys): | 
 |             self.assertEqual(self._box.get_string(key), self._template % i) | 
 |         self._box.clear() | 
 |         self.assertEqual(len(self._box), 0) | 
 |         for i, key in enumerate(keys): | 
 |             self.assertRaises(KeyError, lambda: self._box.get_string(key)) | 
 |  | 
 |     def test_pop(self): | 
 |         # Get and remove a message using pop() | 
 |         key0 = self._box.add(self._template % 0) | 
 |         self.assertIn(key0, self._box) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         self.assertIn(key1, self._box) | 
 |         self.assertEqual(self._box.pop(key0).get_payload(), '0') | 
 |         self.assertNotIn(key0, self._box) | 
 |         self.assertIn(key1, self._box) | 
 |         key2 = self._box.add(self._template % 2) | 
 |         self.assertIn(key2, self._box) | 
 |         self.assertEqual(self._box.pop(key2).get_payload(), '2') | 
 |         self.assertNotIn(key2, self._box) | 
 |         self.assertIn(key1, self._box) | 
 |         self.assertEqual(self._box.pop(key1).get_payload(), '1') | 
 |         self.assertNotIn(key1, self._box) | 
 |         self.assertEqual(len(self._box), 0) | 
 |  | 
 |     def test_popitem(self, iterations=10): | 
 |         # Get and remove an arbitrary (key, message) using popitem() | 
 |         keys = [] | 
 |         for i in range(10): | 
 |             keys.append(self._box.add(self._template % i)) | 
 |         seen = [] | 
 |         for i in range(10): | 
 |             key, msg = self._box.popitem() | 
 |             self.assertIn(key, keys) | 
 |             self.assertNotIn(key, seen) | 
 |             seen.append(key) | 
 |             self.assertEqual(int(msg.get_payload()), keys.index(key)) | 
 |         self.assertEqual(len(self._box), 0) | 
 |         for key in keys: | 
 |             self.assertRaises(KeyError, lambda: self._box[key]) | 
 |  | 
 |     def test_update(self): | 
 |         # Modify multiple messages using update() | 
 |         key0 = self._box.add(self._template % 'original 0') | 
 |         key1 = self._box.add(self._template % 'original 1') | 
 |         key2 = self._box.add(self._template % 'original 2') | 
 |         self._box.update({key0: self._template % 'changed 0', | 
 |                           key2: _sample_message}) | 
 |         self.assertEqual(len(self._box), 3) | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                      self._template % 'changed 0') | 
 |         self.assertEqual(self._box.get_string(key1), | 
 |                      self._template % 'original 1') | 
 |         self._check_sample(self._box[key2]) | 
 |         self._box.update([(key2, self._template % 'changed 2'), | 
 |                     (key1, self._template % 'changed 1'), | 
 |                     (key0, self._template % 'original 0')]) | 
 |         self.assertEqual(len(self._box), 3) | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                      self._template % 'original 0') | 
 |         self.assertEqual(self._box.get_string(key1), | 
 |                      self._template % 'changed 1') | 
 |         self.assertEqual(self._box.get_string(key2), | 
 |                      self._template % 'changed 2') | 
 |         self.assertRaises(KeyError, | 
 |                           lambda: self._box.update({'foo': 'bar', | 
 |                                           key0: self._template % "changed 0"})) | 
 |         self.assertEqual(len(self._box), 3) | 
 |         self.assertEqual(self._box.get_string(key0), | 
 |                      self._template % "changed 0") | 
 |         self.assertEqual(self._box.get_string(key1), | 
 |                      self._template % "changed 1") | 
 |         self.assertEqual(self._box.get_string(key2), | 
 |                      self._template % "changed 2") | 
 |  | 
 |     def test_flush(self): | 
 |         # Write changes to disk | 
 |         self._test_flush_or_close(self._box.flush, True) | 
 |  | 
 |     def test_popitem_and_flush_twice(self): | 
 |         # See #15036. | 
 |         self._box.add(self._template % 0) | 
 |         self._box.add(self._template % 1) | 
 |         self._box.flush() | 
 |  | 
 |         self._box.popitem() | 
 |         self._box.flush() | 
 |         self._box.popitem() | 
 |         self._box.flush() | 
 |  | 
 |     def test_lock_unlock(self): | 
 |         # Lock and unlock the mailbox | 
 |         self.assertFalse(os.path.exists(self._get_lock_path())) | 
 |         self._box.lock() | 
 |         self.assertTrue(os.path.exists(self._get_lock_path())) | 
 |         self._box.unlock() | 
 |         self.assertFalse(os.path.exists(self._get_lock_path())) | 
 |  | 
 |     def test_close(self): | 
 |         # Close mailbox and flush changes to disk | 
 |         self._test_flush_or_close(self._box.close, False) | 
 |  | 
 |     def _test_flush_or_close(self, method, should_call_close): | 
 |         contents = [self._template % i for i in range(3)] | 
 |         self._box.add(contents[0]) | 
 |         self._box.add(contents[1]) | 
 |         self._box.add(contents[2]) | 
 |         oldbox = self._box | 
 |         method() | 
 |         if should_call_close: | 
 |             self._box.close() | 
 |         self._box = self._factory(self._path) | 
 |         keys = self._box.keys() | 
 |         self.assertEqual(len(keys), 3) | 
 |         for key in keys: | 
 |             self.assertIn(self._box.get_string(key), contents) | 
 |         oldbox.close() | 
 |  | 
 |     def test_dump_message(self): | 
 |         # Write message representations to disk | 
 |         for input in (email.message_from_string(_sample_message), | 
 |                       _sample_message, io.BytesIO(_bytes_sample_message)): | 
 |             output = io.BytesIO() | 
 |             self._box._dump_message(input, output) | 
 |             self.assertEqual(output.getvalue(), | 
 |                 _bytes_sample_message.replace(b'\n', os.linesep.encode())) | 
 |         output = io.BytesIO() | 
 |         self.assertRaises(TypeError, | 
 |                           lambda: self._box._dump_message(None, output)) | 
 |  | 
 |     def _get_lock_path(self): | 
 |         # Return the path of the dot lock file. May be overridden. | 
 |         return self._path + '.lock' | 
 |  | 
 |  | 
 | class TestMailboxSuperclass(TestBase, unittest.TestCase): | 
 |  | 
 |     def test_notimplemented(self): | 
 |         # Test that all Mailbox methods raise NotImplementedException. | 
 |         box = mailbox.Mailbox('path') | 
 |         self.assertRaises(NotImplementedError, lambda: box.add('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.remove('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__delitem__('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.discard('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__setitem__('', '')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.keys()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.keys()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.values().__next__()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__iter__().__next__()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.values()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.items().next()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.items()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.get('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__getitem__('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.get_message('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.get_string('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.get_bytes('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.get_file('')) | 
 |         self.assertRaises(NotImplementedError, lambda: '' in box) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__contains__('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.__len__()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.clear()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.pop('')) | 
 |         self.assertRaises(NotImplementedError, lambda: box.popitem()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.update((('', ''),))) | 
 |         self.assertRaises(NotImplementedError, lambda: box.flush()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.lock()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.unlock()) | 
 |         self.assertRaises(NotImplementedError, lambda: box.close()) | 
 |  | 
 |  | 
 | class TestMaildir(TestMailbox, unittest.TestCase): | 
 |  | 
 |     _factory = lambda self, path, factory=None: mailbox.Maildir(path, factory) | 
 |  | 
 |     def setUp(self): | 
 |         TestMailbox.setUp(self) | 
 |         if os.name in ('nt', 'os2') or sys.platform == 'cygwin': | 
 |             self._box.colon = '!' | 
 |  | 
 |     def assertMailboxEmpty(self): | 
 |         self.assertEqual(os.listdir(os.path.join(self._path, 'tmp')), []) | 
 |  | 
 |     def test_add_MM(self): | 
 |         # Add a MaildirMessage instance | 
 |         msg = mailbox.MaildirMessage(self._template % 0) | 
 |         msg.set_subdir('cur') | 
 |         msg.set_info('foo') | 
 |         key = self._box.add(msg) | 
 |         self.assertTrue(os.path.exists(os.path.join(self._path, 'cur', '%s%sfoo' % | 
 |                                                  (key, self._box.colon)))) | 
 |  | 
 |     def test_get_MM(self): | 
 |         # Get a MaildirMessage instance | 
 |         msg = mailbox.MaildirMessage(self._template % 0) | 
 |         msg.set_subdir('cur') | 
 |         msg.set_flags('RF') | 
 |         key = self._box.add(msg) | 
 |         msg_returned = self._box.get_message(key) | 
 |         self.assertIsInstance(msg_returned, mailbox.MaildirMessage) | 
 |         self.assertEqual(msg_returned.get_subdir(), 'cur') | 
 |         self.assertEqual(msg_returned.get_flags(), 'FR') | 
 |  | 
 |     def test_set_MM(self): | 
 |         # Set with a MaildirMessage instance | 
 |         msg0 = mailbox.MaildirMessage(self._template % 0) | 
 |         msg0.set_flags('TP') | 
 |         key = self._box.add(msg0) | 
 |         msg_returned = self._box.get_message(key) | 
 |         self.assertEqual(msg_returned.get_subdir(), 'new') | 
 |         self.assertEqual(msg_returned.get_flags(), 'PT') | 
 |         msg1 = mailbox.MaildirMessage(self._template % 1) | 
 |         self._box[key] = msg1 | 
 |         msg_returned = self._box.get_message(key) | 
 |         self.assertEqual(msg_returned.get_subdir(), 'new') | 
 |         self.assertEqual(msg_returned.get_flags(), '') | 
 |         self.assertEqual(msg_returned.get_payload(), '1') | 
 |         msg2 = mailbox.MaildirMessage(self._template % 2) | 
 |         msg2.set_info('2,S') | 
 |         self._box[key] = msg2 | 
 |         self._box[key] = self._template % 3 | 
 |         msg_returned = self._box.get_message(key) | 
 |         self.assertEqual(msg_returned.get_subdir(), 'new') | 
 |         self.assertEqual(msg_returned.get_flags(), 'S') | 
 |         self.assertEqual(msg_returned.get_payload(), '3') | 
 |  | 
 |     def test_consistent_factory(self): | 
 |         # Add a message. | 
 |         msg = mailbox.MaildirMessage(self._template % 0) | 
 |         msg.set_subdir('cur') | 
 |         msg.set_flags('RF') | 
 |         key = self._box.add(msg) | 
 |  | 
 |         # Create new mailbox with | 
 |         class FakeMessage(mailbox.MaildirMessage): | 
 |             pass | 
 |         box = mailbox.Maildir(self._path, factory=FakeMessage) | 
 |         box.colon = self._box.colon | 
 |         msg2 = box.get_message(key) | 
 |         self.assertIsInstance(msg2, FakeMessage) | 
 |  | 
 |     def test_initialize_new(self): | 
 |         # Initialize a non-existent mailbox | 
 |         self.tearDown() | 
 |         self._box = mailbox.Maildir(self._path) | 
 |         self._check_basics() | 
 |         self._delete_recursively(self._path) | 
 |         self._box = self._factory(self._path, factory=None) | 
 |         self._check_basics() | 
 |  | 
 |     def test_initialize_existing(self): | 
 |         # Initialize an existing mailbox | 
 |         self.tearDown() | 
 |         for subdir in '', 'tmp', 'new', 'cur': | 
 |             os.mkdir(os.path.normpath(os.path.join(self._path, subdir))) | 
 |         self._box = mailbox.Maildir(self._path) | 
 |         self._check_basics() | 
 |  | 
 |     def _check_basics(self, factory=None): | 
 |         # (Used by test_open_new() and test_open_existing().) | 
 |         self.assertEqual(self._box._path, os.path.abspath(self._path)) | 
 |         self.assertEqual(self._box._factory, factory) | 
 |         for subdir in '', 'tmp', 'new', 'cur': | 
 |             path = os.path.join(self._path, subdir) | 
 |             mode = os.stat(path)[stat.ST_MODE] | 
 |             self.assertTrue(stat.S_ISDIR(mode), "Not a directory: '%s'" % path) | 
 |  | 
 |     def test_list_folders(self): | 
 |         # List folders | 
 |         self._box.add_folder('one') | 
 |         self._box.add_folder('two') | 
 |         self._box.add_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 3) | 
 |         self.assertEqual(set(self._box.list_folders()), | 
 |                      set(('one', 'two', 'three'))) | 
 |  | 
 |     def test_get_folder(self): | 
 |         # Open folders | 
 |         self._box.add_folder('foo.bar') | 
 |         folder0 = self._box.get_folder('foo.bar') | 
 |         folder0.add(self._template % 'bar') | 
 |         self.assertTrue(os.path.isdir(os.path.join(self._path, '.foo.bar'))) | 
 |         folder1 = self._box.get_folder('foo.bar') | 
 |         self.assertEqual(folder1.get_string(folder1.keys()[0]), | 
 |                          self._template % 'bar') | 
 |  | 
 |     def test_add_and_remove_folders(self): | 
 |         # Delete folders | 
 |         self._box.add_folder('one') | 
 |         self._box.add_folder('two') | 
 |         self.assertEqual(len(self._box.list_folders()), 2) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('one', 'two'))) | 
 |         self._box.remove_folder('one') | 
 |         self.assertEqual(len(self._box.list_folders()), 1) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two',))) | 
 |         self._box.add_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 2) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two', 'three'))) | 
 |         self._box.remove_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 1) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two',))) | 
 |         self._box.remove_folder('two') | 
 |         self.assertEqual(len(self._box.list_folders()), 0) | 
 |         self.assertEqual(self._box.list_folders(), []) | 
 |  | 
 |     def test_clean(self): | 
 |         # Remove old files from 'tmp' | 
 |         foo_path = os.path.join(self._path, 'tmp', 'foo') | 
 |         bar_path = os.path.join(self._path, 'tmp', 'bar') | 
 |         with open(foo_path, 'w') as f: | 
 |             f.write("@") | 
 |         with open(bar_path, 'w') as f: | 
 |             f.write("@") | 
 |         self._box.clean() | 
 |         self.assertTrue(os.path.exists(foo_path)) | 
 |         self.assertTrue(os.path.exists(bar_path)) | 
 |         foo_stat = os.stat(foo_path) | 
 |         os.utime(foo_path, (time.time() - 129600 - 2, | 
 |                             foo_stat.st_mtime)) | 
 |         self._box.clean() | 
 |         self.assertFalse(os.path.exists(foo_path)) | 
 |         self.assertTrue(os.path.exists(bar_path)) | 
 |  | 
 |     def test_create_tmp(self, repetitions=10): | 
 |         # Create files in tmp directory | 
 |         hostname = socket.gethostname() | 
 |         if '/' in hostname: | 
 |             hostname = hostname.replace('/', r'\057') | 
 |         if ':' in hostname: | 
 |             hostname = hostname.replace(':', r'\072') | 
 |         pid = os.getpid() | 
 |         pattern = re.compile(r"(?P<time>\d+)\.M(?P<M>\d{1,6})P(?P<P>\d+)" | 
 |                              r"Q(?P<Q>\d+)\.(?P<host>[^:/]+)") | 
 |         previous_groups = None | 
 |         for x in range(repetitions): | 
 |             tmp_file = self._box._create_tmp() | 
 |             head, tail = os.path.split(tmp_file.name) | 
 |             self.assertEqual(head, os.path.abspath(os.path.join(self._path, | 
 |                                                                 "tmp")), | 
 |                              "File in wrong location: '%s'" % head) | 
 |             match = pattern.match(tail) | 
 |             self.assertIsNot(match, None, "Invalid file name: '%s'" % tail) | 
 |             groups = match.groups() | 
 |             if previous_groups is not None: | 
 |                 self.assertTrue(int(groups[0] >= previous_groups[0]), | 
 |                              "Non-monotonic seconds: '%s' before '%s'" % | 
 |                              (previous_groups[0], groups[0])) | 
 |                 self.assertTrue(int(groups[1] >= previous_groups[1]) or | 
 |                              groups[0] != groups[1], | 
 |                              "Non-monotonic milliseconds: '%s' before '%s'" % | 
 |                              (previous_groups[1], groups[1])) | 
 |                 self.assertEqual(int(groups[2]), pid, | 
 |                              "Process ID mismatch: '%s' should be '%s'" % | 
 |                              (groups[2], pid)) | 
 |                 self.assertEqual(int(groups[3]), int(previous_groups[3]) + 1, | 
 |                              "Non-sequential counter: '%s' before '%s'" % | 
 |                              (previous_groups[3], groups[3])) | 
 |                 self.assertEqual(groups[4], hostname, | 
 |                              "Host name mismatch: '%s' should be '%s'" % | 
 |                              (groups[4], hostname)) | 
 |             previous_groups = groups | 
 |             tmp_file.write(_bytes_sample_message) | 
 |             tmp_file.seek(0) | 
 |             self.assertEqual(tmp_file.read(), _bytes_sample_message) | 
 |             tmp_file.close() | 
 |         file_count = len(os.listdir(os.path.join(self._path, "tmp"))) | 
 |         self.assertEqual(file_count, repetitions, | 
 |                      "Wrong file count: '%s' should be '%s'" % | 
 |                      (file_count, repetitions)) | 
 |  | 
 |     def test_refresh(self): | 
 |         # Update the table of contents | 
 |         self.assertEqual(self._box._toc, {}) | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(self._template % 1) | 
 |         self.assertEqual(self._box._toc, {}) | 
 |         self._box._refresh() | 
 |         self.assertEqual(self._box._toc, {key0: os.path.join('new', key0), | 
 |                                           key1: os.path.join('new', key1)}) | 
 |         key2 = self._box.add(self._template % 2) | 
 |         self.assertEqual(self._box._toc, {key0: os.path.join('new', key0), | 
 |                                           key1: os.path.join('new', key1)}) | 
 |         self._box._refresh() | 
 |         self.assertEqual(self._box._toc, {key0: os.path.join('new', key0), | 
 |                                           key1: os.path.join('new', key1), | 
 |                                           key2: os.path.join('new', key2)}) | 
 |  | 
 |     def test_refresh_after_safety_period(self): | 
 |         # Issue #13254: Call _refresh after the "file system safety | 
 |         # period" of 2 seconds has passed; _toc should still be | 
 |         # updated because this is the first call to _refresh. | 
 |         key0 = self._box.add(self._template % 0) | 
 |         key1 = self._box.add(self._template % 1) | 
 |  | 
 |         self._box = self._factory(self._path) | 
 |         self.assertEqual(self._box._toc, {}) | 
 |  | 
 |         # Emulate sleeping. Instead of sleeping for 2 seconds, use the | 
 |         # skew factor to make _refresh think that the filesystem | 
 |         # safety period has passed and re-reading the _toc is only | 
 |         # required if mtimes differ. | 
 |         self._box._skewfactor = -3 | 
 |  | 
 |         self._box._refresh() | 
 |         self.assertEqual(sorted(self._box._toc.keys()), sorted([key0, key1])) | 
 |  | 
 |     def test_lookup(self): | 
 |         # Look up message subpaths in the TOC | 
 |         self.assertRaises(KeyError, lambda: self._box._lookup('foo')) | 
 |         key0 = self._box.add(self._template % 0) | 
 |         self.assertEqual(self._box._lookup(key0), os.path.join('new', key0)) | 
 |         os.remove(os.path.join(self._path, 'new', key0)) | 
 |         self.assertEqual(self._box._toc, {key0: os.path.join('new', key0)}) | 
 |         # Be sure that the TOC is read back from disk (see issue #6896 | 
 |         # about bad mtime behaviour on some systems). | 
 |         self._box.flush() | 
 |         self.assertRaises(KeyError, lambda: self._box._lookup(key0)) | 
 |         self.assertEqual(self._box._toc, {}) | 
 |  | 
 |     def test_lock_unlock(self): | 
 |         # Lock and unlock the mailbox. For Maildir, this does nothing. | 
 |         self._box.lock() | 
 |         self._box.unlock() | 
 |  | 
 |     def test_folder (self): | 
 |         # Test for bug #1569790: verify that folders returned by .get_folder() | 
 |         # use the same factory function. | 
 |         def dummy_factory (s): | 
 |             return None | 
 |         box = self._factory(self._path, factory=dummy_factory) | 
 |         folder = box.add_folder('folder1') | 
 |         self.assertIs(folder._factory, dummy_factory) | 
 |  | 
 |         folder1_alias = box.get_folder('folder1') | 
 |         self.assertIs(folder1_alias._factory, dummy_factory) | 
 |  | 
 |     def test_directory_in_folder (self): | 
 |         # Test that mailboxes still work if there's a stray extra directory | 
 |         # in a folder. | 
 |         for i in range(10): | 
 |             self._box.add(mailbox.Message(_sample_message)) | 
 |  | 
 |         # Create a stray directory | 
 |         os.mkdir(os.path.join(self._path, 'cur', 'stray-dir')) | 
 |  | 
 |         # Check that looping still works with the directory present. | 
 |         for msg in self._box: | 
 |             pass | 
 |  | 
 |     def test_file_permissions(self): | 
 |         # Verify that message files are created without execute permissions | 
 |         if not hasattr(os, "stat") or not hasattr(os, "umask"): | 
 |             return | 
 |         msg = mailbox.MaildirMessage(self._template % 0) | 
 |         orig_umask = os.umask(0) | 
 |         try: | 
 |             key = self._box.add(msg) | 
 |         finally: | 
 |             os.umask(orig_umask) | 
 |         path = os.path.join(self._path, self._box._lookup(key)) | 
 |         mode = os.stat(path).st_mode | 
 |         self.assertFalse(mode & 0o111) | 
 |  | 
 |     def test_folder_file_perms(self): | 
 |         # From bug #3228, we want to verify that the file created inside a Maildir | 
 |         # subfolder isn't marked as executable. | 
 |         if not hasattr(os, "stat") or not hasattr(os, "umask"): | 
 |             return | 
 |  | 
 |         orig_umask = os.umask(0) | 
 |         try: | 
 |             subfolder = self._box.add_folder('subfolder') | 
 |         finally: | 
 |             os.umask(orig_umask) | 
 |  | 
 |         path = os.path.join(subfolder._path, 'maildirfolder') | 
 |         st = os.stat(path) | 
 |         perms = st.st_mode | 
 |         self.assertFalse((perms & 0o111)) # Execute bits should all be off. | 
 |  | 
 |     def test_reread(self): | 
 |         # Do an initial unconditional refresh | 
 |         self._box._refresh() | 
 |  | 
 |         # Put the last modified times more than two seconds into the past | 
 |         # (because mtime may have a two second granularity) | 
 |         for subdir in ('cur', 'new'): | 
 |             os.utime(os.path.join(self._box._path, subdir), | 
 |                      (time.time()-5,)*2) | 
 |  | 
 |         # Because mtime has a two second granularity in worst case (FAT), a | 
 |         # refresh is done unconditionally if called for within | 
 |         # two-second-plus-a-bit of the last one, just in case the mbox has | 
 |         # changed; so now we have to wait for that interval to expire. | 
 |         # | 
 |         # Because this is a test, emulate sleeping. Instead of | 
 |         # sleeping for 2 seconds, use the skew factor to make _refresh | 
 |         # think that 2 seconds have passed and re-reading the _toc is | 
 |         # only required if mtimes differ. | 
 |         self._box._skewfactor = -3 | 
 |  | 
 |         # Re-reading causes the ._toc attribute to be assigned a new dictionary | 
 |         # object, so we'll check that the ._toc attribute isn't a different | 
 |         # object. | 
 |         orig_toc = self._box._toc | 
 |         def refreshed(): | 
 |             return self._box._toc is not orig_toc | 
 |  | 
 |         self._box._refresh() | 
 |         self.assertFalse(refreshed()) | 
 |  | 
 |         # Now, write something into cur and remove it.  This changes | 
 |         # the mtime and should cause a re-read. Note that "sleep | 
 |         # emulation" is still in effect, as skewfactor is -3. | 
 |         filename = os.path.join(self._path, 'cur', 'stray-file') | 
 |         f = open(filename, 'w') | 
 |         f.close() | 
 |         os.unlink(filename) | 
 |         self._box._refresh() | 
 |         self.assertTrue(refreshed()) | 
 |  | 
 | class _TestMboxMMDF(TestMailbox): | 
 |  | 
 |     def tearDown(self): | 
 |         super().tearDown() | 
 |         self._box.close() | 
 |         self._delete_recursively(self._path) | 
 |         for lock_remnant in glob.glob(self._path + '.*'): | 
 |             support.unlink(lock_remnant) | 
 |  | 
 |     def assertMailboxEmpty(self): | 
 |         with open(self._path) as f: | 
 |             self.assertEqual(f.readlines(), []) | 
 |  | 
 |     def test_add_from_string(self): | 
 |         # Add a string starting with 'From ' to the mailbox | 
 |         key = self._box.add('From foo@bar blah\nFrom: foo\n\n0') | 
 |         self.assertEqual(self._box[key].get_from(), 'foo@bar blah') | 
 |         self.assertEqual(self._box[key].get_payload(), '0') | 
 |  | 
 |     def test_add_from_bytes(self): | 
 |         # Add a byte string starting with 'From ' to the mailbox | 
 |         key = self._box.add(b'From foo@bar blah\nFrom: foo\n\n0') | 
 |         self.assertEqual(self._box[key].get_from(), 'foo@bar blah') | 
 |         self.assertEqual(self._box[key].get_payload(), '0') | 
 |  | 
 |     def test_add_mbox_or_mmdf_message(self): | 
 |         # Add an mboxMessage or MMDFMessage | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg = class_('From foo@bar blah\nFrom: foo\n\n0') | 
 |             key = self._box.add(msg) | 
 |  | 
 |     def test_open_close_open(self): | 
 |         # Open and inspect previously-created mailbox | 
 |         values = [self._template % i for i in range(3)] | 
 |         for value in values: | 
 |             self._box.add(value) | 
 |         self._box.close() | 
 |         mtime = os.path.getmtime(self._path) | 
 |         self._box = self._factory(self._path) | 
 |         self.assertEqual(len(self._box), 3) | 
 |         for key in self._box.keys(): | 
 |             self.assertIn(self._box.get_string(key), values) | 
 |         self._box.close() | 
 |         self.assertEqual(mtime, os.path.getmtime(self._path)) | 
 |  | 
 |     def test_add_and_close(self): | 
 |         # Verifying that closing a mailbox doesn't change added items | 
 |         self._box.add(_sample_message) | 
 |         for i in range(3): | 
 |             self._box.add(self._template % i) | 
 |         self._box.add(_sample_message) | 
 |         self._box._file.flush() | 
 |         self._box._file.seek(0) | 
 |         contents = self._box._file.read() | 
 |         self._box.close() | 
 |         with open(self._path, 'rb') as f: | 
 |             self.assertEqual(contents, f.read()) | 
 |         self._box = self._factory(self._path) | 
 |  | 
 |     @unittest.skipUnless(hasattr(os, 'fork'), "Test needs fork().") | 
 |     @unittest.skipUnless(hasattr(socket, 'socketpair'), "Test needs socketpair().") | 
 |     def test_lock_conflict(self): | 
 |         # Fork off a child process that will lock the mailbox temporarily, | 
 |         # unlock it and exit. | 
 |         c, p = socket.socketpair() | 
 |         self.addCleanup(c.close) | 
 |         self.addCleanup(p.close) | 
 |  | 
 |         pid = os.fork() | 
 |         if pid == 0: | 
 |             # child | 
 |             try: | 
 |                 # lock the mailbox, and signal the parent it can proceed | 
 |                 self._box.lock() | 
 |                 c.send(b'c') | 
 |  | 
 |                 # wait until the parent is done, and unlock the mailbox | 
 |                 c.recv(1) | 
 |                 self._box.unlock() | 
 |             finally: | 
 |                 os._exit(0) | 
 |  | 
 |         # In the parent, wait until the child signals it locked the mailbox. | 
 |         p.recv(1) | 
 |         try: | 
 |             self.assertRaises(mailbox.ExternalClashError, | 
 |                               self._box.lock) | 
 |         finally: | 
 |             # Signal the child it can now release the lock and exit. | 
 |             p.send(b'p') | 
 |             # Wait for child to exit.  Locking should now succeed. | 
 |             exited_pid, status = os.waitpid(pid, 0) | 
 |  | 
 |         self._box.lock() | 
 |         self._box.unlock() | 
 |  | 
 |     def test_relock(self): | 
 |         # Test case for bug #1575506: the mailbox class was locking the | 
 |         # wrong file object in its flush() method. | 
 |         msg = "Subject: sub\n\nbody\n" | 
 |         key1 = self._box.add(msg) | 
 |         self._box.flush() | 
 |         self._box.close() | 
 |  | 
 |         self._box = self._factory(self._path) | 
 |         self._box.lock() | 
 |         key2 = self._box.add(msg) | 
 |         self._box.flush() | 
 |         self.assertTrue(self._box._locked) | 
 |         self._box.close() | 
 |  | 
 |  | 
 | class TestMbox(_TestMboxMMDF, unittest.TestCase): | 
 |  | 
 |     _factory = lambda self, path, factory=None: mailbox.mbox(path, factory) | 
 |  | 
 |     def test_file_perms(self): | 
 |         # From bug #3228, we want to verify that the mailbox file isn't executable, | 
 |         # even if the umask is set to something that would leave executable bits set. | 
 |         # We only run this test on platforms that support umask. | 
 |         if hasattr(os, 'umask') and hasattr(os, 'stat'): | 
 |             try: | 
 |                 old_umask = os.umask(0o077) | 
 |                 self._box.close() | 
 |                 os.unlink(self._path) | 
 |                 self._box = mailbox.mbox(self._path, create=True) | 
 |                 self._box.add('') | 
 |                 self._box.close() | 
 |             finally: | 
 |                 os.umask(old_umask) | 
 |  | 
 |             st = os.stat(self._path) | 
 |             perms = st.st_mode | 
 |             self.assertFalse((perms & 0o111)) # Execute bits should all be off. | 
 |  | 
 | class TestMMDF(_TestMboxMMDF, unittest.TestCase): | 
 |  | 
 |     _factory = lambda self, path, factory=None: mailbox.MMDF(path, factory) | 
 |  | 
 |  | 
 | class TestMH(TestMailbox, unittest.TestCase): | 
 |  | 
 |     _factory = lambda self, path, factory=None: mailbox.MH(path, factory) | 
 |  | 
 |     def assertMailboxEmpty(self): | 
 |         self.assertEqual(os.listdir(self._path), ['.mh_sequences']) | 
 |  | 
 |     def test_list_folders(self): | 
 |         # List folders | 
 |         self._box.add_folder('one') | 
 |         self._box.add_folder('two') | 
 |         self._box.add_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 3) | 
 |         self.assertEqual(set(self._box.list_folders()), | 
 |                      set(('one', 'two', 'three'))) | 
 |  | 
 |     def test_get_folder(self): | 
 |         # Open folders | 
 |         def dummy_factory (s): | 
 |             return None | 
 |         self._box = self._factory(self._path, dummy_factory) | 
 |  | 
 |         new_folder = self._box.add_folder('foo.bar') | 
 |         folder0 = self._box.get_folder('foo.bar') | 
 |         folder0.add(self._template % 'bar') | 
 |         self.assertTrue(os.path.isdir(os.path.join(self._path, 'foo.bar'))) | 
 |         folder1 = self._box.get_folder('foo.bar') | 
 |         self.assertEqual(folder1.get_string(folder1.keys()[0]), | 
 |                          self._template % 'bar') | 
 |  | 
 |         # Test for bug #1569790: verify that folders returned by .get_folder() | 
 |         # use the same factory function. | 
 |         self.assertIs(new_folder._factory, self._box._factory) | 
 |         self.assertIs(folder0._factory, self._box._factory) | 
 |  | 
 |     def test_add_and_remove_folders(self): | 
 |         # Delete folders | 
 |         self._box.add_folder('one') | 
 |         self._box.add_folder('two') | 
 |         self.assertEqual(len(self._box.list_folders()), 2) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('one', 'two'))) | 
 |         self._box.remove_folder('one') | 
 |         self.assertEqual(len(self._box.list_folders()), 1) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two',))) | 
 |         self._box.add_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 2) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two', 'three'))) | 
 |         self._box.remove_folder('three') | 
 |         self.assertEqual(len(self._box.list_folders()), 1) | 
 |         self.assertEqual(set(self._box.list_folders()), set(('two',))) | 
 |         self._box.remove_folder('two') | 
 |         self.assertEqual(len(self._box.list_folders()), 0) | 
 |         self.assertEqual(self._box.list_folders(), []) | 
 |  | 
 |     def test_sequences(self): | 
 |         # Get and set sequences | 
 |         self.assertEqual(self._box.get_sequences(), {}) | 
 |         msg0 = mailbox.MHMessage(self._template % 0) | 
 |         msg0.add_sequence('foo') | 
 |         key0 = self._box.add(msg0) | 
 |         self.assertEqual(self._box.get_sequences(), {'foo':[key0]}) | 
 |         msg1 = mailbox.MHMessage(self._template % 1) | 
 |         msg1.set_sequences(['bar', 'replied', 'foo']) | 
 |         key1 = self._box.add(msg1) | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[key0, key1], 'bar':[key1], 'replied':[key1]}) | 
 |         msg0.set_sequences(['flagged']) | 
 |         self._box[key0] = msg0 | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[key1], 'bar':[key1], 'replied':[key1], | 
 |                       'flagged':[key0]}) | 
 |         self._box.remove(key1) | 
 |         self.assertEqual(self._box.get_sequences(), {'flagged':[key0]}) | 
 |  | 
 |     def test_issue2625(self): | 
 |         msg0 = mailbox.MHMessage(self._template % 0) | 
 |         msg0.add_sequence('foo') | 
 |         key0 = self._box.add(msg0) | 
 |         refmsg0 = self._box.get_message(key0) | 
 |  | 
 |     def test_issue7627(self): | 
 |         msg0 = mailbox.MHMessage(self._template % 0) | 
 |         key0 = self._box.add(msg0) | 
 |         self._box.lock() | 
 |         self._box.remove(key0) | 
 |         self._box.unlock() | 
 |  | 
 |     def test_pack(self): | 
 |         # Pack the contents of the mailbox | 
 |         msg0 = mailbox.MHMessage(self._template % 0) | 
 |         msg1 = mailbox.MHMessage(self._template % 1) | 
 |         msg2 = mailbox.MHMessage(self._template % 2) | 
 |         msg3 = mailbox.MHMessage(self._template % 3) | 
 |         msg0.set_sequences(['foo', 'unseen']) | 
 |         msg1.set_sequences(['foo']) | 
 |         msg2.set_sequences(['foo', 'flagged']) | 
 |         msg3.set_sequences(['foo', 'bar', 'replied']) | 
 |         key0 = self._box.add(msg0) | 
 |         key1 = self._box.add(msg1) | 
 |         key2 = self._box.add(msg2) | 
 |         key3 = self._box.add(msg3) | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[key0,key1,key2,key3], 'unseen':[key0], | 
 |                       'flagged':[key2], 'bar':[key3], 'replied':[key3]}) | 
 |         self._box.remove(key2) | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[key0,key1,key3], 'unseen':[key0], 'bar':[key3], | 
 |                       'replied':[key3]}) | 
 |         self._box.pack() | 
 |         self.assertEqual(self._box.keys(), [1, 2, 3]) | 
 |         key0 = key0 | 
 |         key1 = key0 + 1 | 
 |         key2 = key1 + 1 | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[1, 2, 3], 'unseen':[1], 'bar':[3], 'replied':[3]}) | 
 |  | 
 |         # Test case for packing while holding the mailbox locked. | 
 |         key0 = self._box.add(msg1) | 
 |         key1 = self._box.add(msg1) | 
 |         key2 = self._box.add(msg1) | 
 |         key3 = self._box.add(msg1) | 
 |  | 
 |         self._box.remove(key0) | 
 |         self._box.remove(key2) | 
 |         self._box.lock() | 
 |         self._box.pack() | 
 |         self._box.unlock() | 
 |         self.assertEqual(self._box.get_sequences(), | 
 |                      {'foo':[1, 2, 3, 4, 5], | 
 |                       'unseen':[1], 'bar':[3], 'replied':[3]}) | 
 |  | 
 |     def _get_lock_path(self): | 
 |         return os.path.join(self._path, '.mh_sequences.lock') | 
 |  | 
 |  | 
 | class TestBabyl(TestMailbox, unittest.TestCase): | 
 |  | 
 |     _factory = lambda self, path, factory=None: mailbox.Babyl(path, factory) | 
 |  | 
 |     def assertMailboxEmpty(self): | 
 |         with open(self._path) as f: | 
 |             self.assertEqual(f.readlines(), []) | 
 |  | 
 |     def tearDown(self): | 
 |         super().tearDown() | 
 |         self._box.close() | 
 |         self._delete_recursively(self._path) | 
 |         for lock_remnant in glob.glob(self._path + '.*'): | 
 |             support.unlink(lock_remnant) | 
 |  | 
 |     def test_labels(self): | 
 |         # Get labels from the mailbox | 
 |         self.assertEqual(self._box.get_labels(), []) | 
 |         msg0 = mailbox.BabylMessage(self._template % 0) | 
 |         msg0.add_label('foo') | 
 |         key0 = self._box.add(msg0) | 
 |         self.assertEqual(self._box.get_labels(), ['foo']) | 
 |         msg1 = mailbox.BabylMessage(self._template % 1) | 
 |         msg1.set_labels(['bar', 'answered', 'foo']) | 
 |         key1 = self._box.add(msg1) | 
 |         self.assertEqual(set(self._box.get_labels()), set(['foo', 'bar'])) | 
 |         msg0.set_labels(['blah', 'filed']) | 
 |         self._box[key0] = msg0 | 
 |         self.assertEqual(set(self._box.get_labels()), | 
 |                      set(['foo', 'bar', 'blah'])) | 
 |         self._box.remove(key1) | 
 |         self.assertEqual(set(self._box.get_labels()), set(['blah'])) | 
 |  | 
 |  | 
 | class FakeFileLikeObject: | 
 |  | 
 |     def __init__(self): | 
 |         self.closed = False | 
 |  | 
 |     def close(self): | 
 |         self.closed = True | 
 |  | 
 |  | 
 | class FakeMailBox(mailbox.Mailbox): | 
 |  | 
 |     def __init__(self): | 
 |         mailbox.Mailbox.__init__(self, '', lambda file: None) | 
 |         self.files = [FakeFileLikeObject() for i in range(10)] | 
 |  | 
 |     def get_file(self, key): | 
 |         return self.files[key] | 
 |  | 
 |  | 
 | class TestFakeMailBox(unittest.TestCase): | 
 |  | 
 |     def test_closing_fd(self): | 
 |         box = FakeMailBox() | 
 |         for i in range(10): | 
 |             self.assertFalse(box.files[i].closed) | 
 |         for i in range(10): | 
 |             box[i] | 
 |         for i in range(10): | 
 |             self.assertTrue(box.files[i].closed) | 
 |  | 
 |  | 
 | class TestMessage(TestBase, unittest.TestCase): | 
 |  | 
 |     _factory = mailbox.Message      # Overridden by subclasses to reuse tests | 
 |  | 
 |     def setUp(self): | 
 |         self._path = support.TESTFN | 
 |  | 
 |     def tearDown(self): | 
 |         self._delete_recursively(self._path) | 
 |  | 
 |     def test_initialize_with_eMM(self): | 
 |         # Initialize based on email.message.Message instance | 
 |         eMM = email.message_from_string(_sample_message) | 
 |         msg = self._factory(eMM) | 
 |         self._post_initialize_hook(msg) | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_initialize_with_string(self): | 
 |         # Initialize based on string | 
 |         msg = self._factory(_sample_message) | 
 |         self._post_initialize_hook(msg) | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_initialize_with_file(self): | 
 |         # Initialize based on contents of file | 
 |         with open(self._path, 'w+') as f: | 
 |             f.write(_sample_message) | 
 |             f.seek(0) | 
 |             msg = self._factory(f) | 
 |             self._post_initialize_hook(msg) | 
 |             self._check_sample(msg) | 
 |  | 
 |     def test_initialize_with_binary_file(self): | 
 |         # Initialize based on contents of binary file | 
 |         with open(self._path, 'wb+') as f: | 
 |             f.write(_bytes_sample_message) | 
 |             f.seek(0) | 
 |             msg = self._factory(f) | 
 |             self._post_initialize_hook(msg) | 
 |             self._check_sample(msg) | 
 |  | 
 |     def test_initialize_with_nothing(self): | 
 |         # Initialize without arguments | 
 |         msg = self._factory() | 
 |         self._post_initialize_hook(msg) | 
 |         self.assertIsInstance(msg, email.message.Message) | 
 |         self.assertIsInstance(msg, mailbox.Message) | 
 |         self.assertIsInstance(msg, self._factory) | 
 |         self.assertEqual(msg.keys(), []) | 
 |         self.assertFalse(msg.is_multipart()) | 
 |         self.assertEqual(msg.get_payload(), None) | 
 |  | 
 |     def test_initialize_incorrectly(self): | 
 |         # Initialize with invalid argument | 
 |         self.assertRaises(TypeError, lambda: self._factory(object())) | 
 |  | 
 |     def test_become_message(self): | 
 |         # Take on the state of another message | 
 |         eMM = email.message_from_string(_sample_message) | 
 |         msg = self._factory() | 
 |         msg._become_message(eMM) | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_explain_to(self): | 
 |         # Copy self's format-specific data to other message formats. | 
 |         # This test is superficial; better ones are in TestMessageConversion. | 
 |         msg = self._factory() | 
 |         for class_ in (mailbox.Message, mailbox.MaildirMessage, | 
 |                        mailbox.mboxMessage, mailbox.MHMessage, | 
 |                        mailbox.BabylMessage, mailbox.MMDFMessage): | 
 |             other_msg = class_() | 
 |             msg._explain_to(other_msg) | 
 |         other_msg = email.message.Message() | 
 |         self.assertRaises(TypeError, lambda: msg._explain_to(other_msg)) | 
 |  | 
 |     def _post_initialize_hook(self, msg): | 
 |         # Overridden by subclasses to check extra things after initialization | 
 |         pass | 
 |  | 
 |  | 
 | class TestMaildirMessage(TestMessage, unittest.TestCase): | 
 |  | 
 |     _factory = mailbox.MaildirMessage | 
 |  | 
 |     def _post_initialize_hook(self, msg): | 
 |         self.assertEqual(msg._subdir, 'new') | 
 |         self.assertEqual(msg._info, '') | 
 |  | 
 |     def test_subdir(self): | 
 |         # Use get_subdir() and set_subdir() | 
 |         msg = mailbox.MaildirMessage(_sample_message) | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         msg.set_subdir('cur') | 
 |         self.assertEqual(msg.get_subdir(), 'cur') | 
 |         msg.set_subdir('new') | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         self.assertRaises(ValueError, lambda: msg.set_subdir('tmp')) | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         msg.set_subdir('new') | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_flags(self): | 
 |         # Use get_flags(), set_flags(), add_flag(), remove_flag() | 
 |         msg = mailbox.MaildirMessage(_sample_message) | 
 |         self.assertEqual(msg.get_flags(), '') | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         msg.set_flags('F') | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         self.assertEqual(msg.get_flags(), 'F') | 
 |         msg.set_flags('SDTP') | 
 |         self.assertEqual(msg.get_flags(), 'DPST') | 
 |         msg.add_flag('FT') | 
 |         self.assertEqual(msg.get_flags(), 'DFPST') | 
 |         msg.remove_flag('TDRP') | 
 |         self.assertEqual(msg.get_flags(), 'FS') | 
 |         self.assertEqual(msg.get_subdir(), 'new') | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_date(self): | 
 |         # Use get_date() and set_date() | 
 |         msg = mailbox.MaildirMessage(_sample_message) | 
 |         self.assertLess(abs(msg.get_date() - time.time()), 60) | 
 |         msg.set_date(0.0) | 
 |         self.assertEqual(msg.get_date(), 0.0) | 
 |  | 
 |     def test_info(self): | 
 |         # Use get_info() and set_info() | 
 |         msg = mailbox.MaildirMessage(_sample_message) | 
 |         self.assertEqual(msg.get_info(), '') | 
 |         msg.set_info('1,foo=bar') | 
 |         self.assertEqual(msg.get_info(), '1,foo=bar') | 
 |         self.assertRaises(TypeError, lambda: msg.set_info(None)) | 
 |         self._check_sample(msg) | 
 |  | 
 |     def test_info_and_flags(self): | 
 |         # Test interaction of info and flag methods | 
 |         msg = mailbox.MaildirMessage(_sample_message) | 
 |         self.assertEqual(msg.get_info(), '') | 
 |         msg.set_flags('SF') | 
 |         self.assertEqual(msg.get_flags(), 'FS') | 
 |         self.assertEqual(msg.get_info(), '2,FS') | 
 |         msg.set_info('1,') | 
 |         self.assertEqual(msg.get_flags(), '') | 
 |         self.assertEqual(msg.get_info(), '1,') | 
 |         msg.remove_flag('RPT') | 
 |         self.assertEqual(msg.get_flags(), '') | 
 |         self.assertEqual(msg.get_info(), '1,') | 
 |         msg.add_flag('D') | 
 |         self.assertEqual(msg.get_flags(), 'D') | 
 |         self.assertEqual(msg.get_info(), '2,D') | 
 |         self._check_sample(msg) | 
 |  | 
 |  | 
 | class _TestMboxMMDFMessage: | 
 |  | 
 |     _factory = mailbox._mboxMMDFMessage | 
 |  | 
 |     def _post_initialize_hook(self, msg): | 
 |         self._check_from(msg) | 
 |  | 
 |     def test_initialize_with_unixfrom(self): | 
 |         # Initialize with a message that already has a _unixfrom attribute | 
 |         msg = mailbox.Message(_sample_message) | 
 |         msg.set_unixfrom('From foo@bar blah') | 
 |         msg = mailbox.mboxMessage(msg) | 
 |         self.assertEqual(msg.get_from(), 'foo@bar blah', msg.get_from()) | 
 |  | 
 |     def test_from(self): | 
 |         # Get and set "From " line | 
 |         msg = mailbox.mboxMessage(_sample_message) | 
 |         self._check_from(msg) | 
 |         msg.set_from('foo bar') | 
 |         self.assertEqual(msg.get_from(), 'foo bar') | 
 |         msg.set_from('foo@bar', True) | 
 |         self._check_from(msg, 'foo@bar') | 
 |         msg.set_from('blah@temp', time.localtime()) | 
 |         self._check_from(msg, 'blah@temp') | 
 |  | 
 |     def test_flags(self): | 
 |         # Use get_flags(), set_flags(), add_flag(), remove_flag() | 
 |         msg = mailbox.mboxMessage(_sample_message) | 
 |         self.assertEqual(msg.get_flags(), '') | 
 |         msg.set_flags('F') | 
 |         self.assertEqual(msg.get_flags(), 'F') | 
 |         msg.set_flags('XODR') | 
 |         self.assertEqual(msg.get_flags(), 'RODX') | 
 |         msg.add_flag('FA') | 
 |         self.assertEqual(msg.get_flags(), 'RODFAX') | 
 |         msg.remove_flag('FDXA') | 
 |         self.assertEqual(msg.get_flags(), 'RO') | 
 |         self._check_sample(msg) | 
 |  | 
 |     def _check_from(self, msg, sender=None): | 
 |         # Check contents of "From " line | 
 |         if sender is None: | 
 |             sender = "MAILER-DAEMON" | 
 |         self.assertTrue(re.match(sender + r" \w{3} \w{3} [\d ]\d [\d ]\d:\d{2}:" | 
 |                               r"\d{2} \d{4}", msg.get_from()) is not None) | 
 |  | 
 |  | 
 | class TestMboxMessage(_TestMboxMMDFMessage, TestMessage): | 
 |  | 
 |     _factory = mailbox.mboxMessage | 
 |  | 
 |  | 
 | class TestMHMessage(TestMessage, unittest.TestCase): | 
 |  | 
 |     _factory = mailbox.MHMessage | 
 |  | 
 |     def _post_initialize_hook(self, msg): | 
 |         self.assertEqual(msg._sequences, []) | 
 |  | 
 |     def test_sequences(self): | 
 |         # Get, set, join, and leave sequences | 
 |         msg = mailbox.MHMessage(_sample_message) | 
 |         self.assertEqual(msg.get_sequences(), []) | 
 |         msg.set_sequences(['foobar']) | 
 |         self.assertEqual(msg.get_sequences(), ['foobar']) | 
 |         msg.set_sequences([]) | 
 |         self.assertEqual(msg.get_sequences(), []) | 
 |         msg.add_sequence('unseen') | 
 |         self.assertEqual(msg.get_sequences(), ['unseen']) | 
 |         msg.add_sequence('flagged') | 
 |         self.assertEqual(msg.get_sequences(), ['unseen', 'flagged']) | 
 |         msg.add_sequence('flagged') | 
 |         self.assertEqual(msg.get_sequences(), ['unseen', 'flagged']) | 
 |         msg.remove_sequence('unseen') | 
 |         self.assertEqual(msg.get_sequences(), ['flagged']) | 
 |         msg.add_sequence('foobar') | 
 |         self.assertEqual(msg.get_sequences(), ['flagged', 'foobar']) | 
 |         msg.remove_sequence('replied') | 
 |         self.assertEqual(msg.get_sequences(), ['flagged', 'foobar']) | 
 |         msg.set_sequences(['foobar', 'replied']) | 
 |         self.assertEqual(msg.get_sequences(), ['foobar', 'replied']) | 
 |  | 
 |  | 
 | class TestBabylMessage(TestMessage, unittest.TestCase): | 
 |  | 
 |     _factory = mailbox.BabylMessage | 
 |  | 
 |     def _post_initialize_hook(self, msg): | 
 |         self.assertEqual(msg._labels, []) | 
 |  | 
 |     def test_labels(self): | 
 |         # Get, set, join, and leave labels | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         self.assertEqual(msg.get_labels(), []) | 
 |         msg.set_labels(['foobar']) | 
 |         self.assertEqual(msg.get_labels(), ['foobar']) | 
 |         msg.set_labels([]) | 
 |         self.assertEqual(msg.get_labels(), []) | 
 |         msg.add_label('filed') | 
 |         self.assertEqual(msg.get_labels(), ['filed']) | 
 |         msg.add_label('resent') | 
 |         self.assertEqual(msg.get_labels(), ['filed', 'resent']) | 
 |         msg.add_label('resent') | 
 |         self.assertEqual(msg.get_labels(), ['filed', 'resent']) | 
 |         msg.remove_label('filed') | 
 |         self.assertEqual(msg.get_labels(), ['resent']) | 
 |         msg.add_label('foobar') | 
 |         self.assertEqual(msg.get_labels(), ['resent', 'foobar']) | 
 |         msg.remove_label('unseen') | 
 |         self.assertEqual(msg.get_labels(), ['resent', 'foobar']) | 
 |         msg.set_labels(['foobar', 'answered']) | 
 |         self.assertEqual(msg.get_labels(), ['foobar', 'answered']) | 
 |  | 
 |     def test_visible(self): | 
 |         # Get, set, and update visible headers | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         visible = msg.get_visible() | 
 |         self.assertEqual(visible.keys(), []) | 
 |         self.assertIs(visible.get_payload(), None) | 
 |         visible['User-Agent'] = 'FooBar 1.0' | 
 |         visible['X-Whatever'] = 'Blah' | 
 |         self.assertEqual(msg.get_visible().keys(), []) | 
 |         msg.set_visible(visible) | 
 |         visible = msg.get_visible() | 
 |         self.assertTrue(visible.keys() == ['User-Agent', 'X-Whatever']) | 
 |         self.assertTrue(visible['User-Agent'] == 'FooBar 1.0') | 
 |         self.assertEqual(visible['X-Whatever'], 'Blah') | 
 |         self.assertIs(visible.get_payload(), None) | 
 |         msg.update_visible() | 
 |         self.assertEqual(visible.keys(), ['User-Agent', 'X-Whatever']) | 
 |         self.assertIs(visible.get_payload(), None) | 
 |         visible = msg.get_visible() | 
 |         self.assertEqual(visible.keys(), ['User-Agent', 'Date', 'From', 'To', | 
 |                                           'Subject']) | 
 |         for header in ('User-Agent', 'Date', 'From', 'To', 'Subject'): | 
 |             self.assertEqual(visible[header], msg[header]) | 
 |  | 
 |  | 
 | class TestMMDFMessage(_TestMboxMMDFMessage, TestMessage): | 
 |  | 
 |     _factory = mailbox.MMDFMessage | 
 |  | 
 |  | 
 | class TestMessageConversion(TestBase, unittest.TestCase): | 
 |  | 
 |     def test_plain_to_x(self): | 
 |         # Convert Message to all formats | 
 |         for class_ in (mailbox.Message, mailbox.MaildirMessage, | 
 |                        mailbox.mboxMessage, mailbox.MHMessage, | 
 |                        mailbox.BabylMessage, mailbox.MMDFMessage): | 
 |             msg_plain = mailbox.Message(_sample_message) | 
 |             msg = class_(msg_plain) | 
 |             self._check_sample(msg) | 
 |  | 
 |     def test_x_to_plain(self): | 
 |         # Convert all formats to Message | 
 |         for class_ in (mailbox.Message, mailbox.MaildirMessage, | 
 |                        mailbox.mboxMessage, mailbox.MHMessage, | 
 |                        mailbox.BabylMessage, mailbox.MMDFMessage): | 
 |             msg = class_(_sample_message) | 
 |             msg_plain = mailbox.Message(msg) | 
 |             self._check_sample(msg_plain) | 
 |  | 
 |     def test_x_from_bytes(self): | 
 |         # Convert all formats to Message | 
 |         for class_ in (mailbox.Message, mailbox.MaildirMessage, | 
 |                        mailbox.mboxMessage, mailbox.MHMessage, | 
 |                        mailbox.BabylMessage, mailbox.MMDFMessage): | 
 |             msg = class_(_bytes_sample_message) | 
 |             self._check_sample(msg) | 
 |  | 
 |     def test_x_to_invalid(self): | 
 |         # Convert all formats to an invalid format | 
 |         for class_ in (mailbox.Message, mailbox.MaildirMessage, | 
 |                        mailbox.mboxMessage, mailbox.MHMessage, | 
 |                        mailbox.BabylMessage, mailbox.MMDFMessage): | 
 |             self.assertRaises(TypeError, lambda: class_(False)) | 
 |  | 
 |     def test_maildir_to_maildir(self): | 
 |         # Convert MaildirMessage to MaildirMessage | 
 |         msg_maildir = mailbox.MaildirMessage(_sample_message) | 
 |         msg_maildir.set_flags('DFPRST') | 
 |         msg_maildir.set_subdir('cur') | 
 |         date = msg_maildir.get_date() | 
 |         msg = mailbox.MaildirMessage(msg_maildir) | 
 |         self._check_sample(msg) | 
 |         self.assertEqual(msg.get_flags(), 'DFPRST') | 
 |         self.assertEqual(msg.get_subdir(), 'cur') | 
 |         self.assertEqual(msg.get_date(), date) | 
 |  | 
 |     def test_maildir_to_mboxmmdf(self): | 
 |         # Convert MaildirMessage to mboxmessage and MMDFMessage | 
 |         pairs = (('D', ''), ('F', 'F'), ('P', ''), ('R', 'A'), ('S', 'R'), | 
 |                  ('T', 'D'), ('DFPRST', 'RDFA')) | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg_maildir = mailbox.MaildirMessage(_sample_message) | 
 |             msg_maildir.set_date(0.0) | 
 |             for setting, result in pairs: | 
 |                 msg_maildir.set_flags(setting) | 
 |                 msg = class_(msg_maildir) | 
 |                 self.assertEqual(msg.get_flags(), result) | 
 |                 self.assertEqual(msg.get_from(), 'MAILER-DAEMON %s' % | 
 |                              time.asctime(time.gmtime(0.0))) | 
 |             msg_maildir.set_subdir('cur') | 
 |             self.assertEqual(class_(msg_maildir).get_flags(), 'RODFA') | 
 |  | 
 |     def test_maildir_to_mh(self): | 
 |         # Convert MaildirMessage to MHMessage | 
 |         msg_maildir = mailbox.MaildirMessage(_sample_message) | 
 |         pairs = (('D', ['unseen']), ('F', ['unseen', 'flagged']), | 
 |                  ('P', ['unseen']), ('R', ['unseen', 'replied']), ('S', []), | 
 |                  ('T', ['unseen']), ('DFPRST', ['replied', 'flagged'])) | 
 |         for setting, result in pairs: | 
 |             msg_maildir.set_flags(setting) | 
 |             self.assertEqual(mailbox.MHMessage(msg_maildir).get_sequences(), | 
 |                              result) | 
 |  | 
 |     def test_maildir_to_babyl(self): | 
 |         # Convert MaildirMessage to Babyl | 
 |         msg_maildir = mailbox.MaildirMessage(_sample_message) | 
 |         pairs = (('D', ['unseen']), ('F', ['unseen']), | 
 |                  ('P', ['unseen', 'forwarded']), ('R', ['unseen', 'answered']), | 
 |                  ('S', []), ('T', ['unseen', 'deleted']), | 
 |                  ('DFPRST', ['deleted', 'answered', 'forwarded'])) | 
 |         for setting, result in pairs: | 
 |             msg_maildir.set_flags(setting) | 
 |             self.assertEqual(mailbox.BabylMessage(msg_maildir).get_labels(), | 
 |                              result) | 
 |  | 
 |     def test_mboxmmdf_to_maildir(self): | 
 |         # Convert mboxMessage and MMDFMessage to MaildirMessage | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg_mboxMMDF = class_(_sample_message) | 
 |             msg_mboxMMDF.set_from('foo@bar', time.gmtime(0.0)) | 
 |             pairs = (('R', 'S'), ('O', ''), ('D', 'T'), ('F', 'F'), ('A', 'R'), | 
 |                      ('RODFA', 'FRST')) | 
 |             for setting, result in pairs: | 
 |                 msg_mboxMMDF.set_flags(setting) | 
 |                 msg = mailbox.MaildirMessage(msg_mboxMMDF) | 
 |                 self.assertEqual(msg.get_flags(), result) | 
 |                 self.assertEqual(msg.get_date(), 0.0) | 
 |             msg_mboxMMDF.set_flags('O') | 
 |             self.assertEqual(mailbox.MaildirMessage(msg_mboxMMDF).get_subdir(), | 
 |                              'cur') | 
 |  | 
 |     def test_mboxmmdf_to_mboxmmdf(self): | 
 |         # Convert mboxMessage and MMDFMessage to mboxMessage and MMDFMessage | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg_mboxMMDF = class_(_sample_message) | 
 |             msg_mboxMMDF.set_flags('RODFA') | 
 |             msg_mboxMMDF.set_from('foo@bar') | 
 |             for class2_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |                 msg2 = class2_(msg_mboxMMDF) | 
 |                 self.assertEqual(msg2.get_flags(), 'RODFA') | 
 |                 self.assertEqual(msg2.get_from(), 'foo@bar') | 
 |  | 
 |     def test_mboxmmdf_to_mh(self): | 
 |         # Convert mboxMessage and MMDFMessage to MHMessage | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg_mboxMMDF = class_(_sample_message) | 
 |             pairs = (('R', []), ('O', ['unseen']), ('D', ['unseen']), | 
 |                      ('F', ['unseen', 'flagged']), | 
 |                      ('A', ['unseen', 'replied']), | 
 |                      ('RODFA', ['replied', 'flagged'])) | 
 |             for setting, result in pairs: | 
 |                 msg_mboxMMDF.set_flags(setting) | 
 |                 self.assertEqual(mailbox.MHMessage(msg_mboxMMDF).get_sequences(), | 
 |                                  result) | 
 |  | 
 |     def test_mboxmmdf_to_babyl(self): | 
 |         # Convert mboxMessage and MMDFMessage to BabylMessage | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             msg = class_(_sample_message) | 
 |             pairs = (('R', []), ('O', ['unseen']), | 
 |                      ('D', ['unseen', 'deleted']), ('F', ['unseen']), | 
 |                      ('A', ['unseen', 'answered']), | 
 |                      ('RODFA', ['deleted', 'answered'])) | 
 |             for setting, result in pairs: | 
 |                 msg.set_flags(setting) | 
 |                 self.assertEqual(mailbox.BabylMessage(msg).get_labels(), result) | 
 |  | 
 |     def test_mh_to_maildir(self): | 
 |         # Convert MHMessage to MaildirMessage | 
 |         pairs = (('unseen', ''), ('replied', 'RS'), ('flagged', 'FS')) | 
 |         for setting, result in pairs: | 
 |             msg = mailbox.MHMessage(_sample_message) | 
 |             msg.add_sequence(setting) | 
 |             self.assertEqual(mailbox.MaildirMessage(msg).get_flags(), result) | 
 |             self.assertEqual(mailbox.MaildirMessage(msg).get_subdir(), 'cur') | 
 |         msg = mailbox.MHMessage(_sample_message) | 
 |         msg.add_sequence('unseen') | 
 |         msg.add_sequence('replied') | 
 |         msg.add_sequence('flagged') | 
 |         self.assertEqual(mailbox.MaildirMessage(msg).get_flags(), 'FR') | 
 |         self.assertEqual(mailbox.MaildirMessage(msg).get_subdir(), 'cur') | 
 |  | 
 |     def test_mh_to_mboxmmdf(self): | 
 |         # Convert MHMessage to mboxMessage and MMDFMessage | 
 |         pairs = (('unseen', 'O'), ('replied', 'ROA'), ('flagged', 'ROF')) | 
 |         for setting, result in pairs: | 
 |             msg = mailbox.MHMessage(_sample_message) | 
 |             msg.add_sequence(setting) | 
 |             for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |                 self.assertEqual(class_(msg).get_flags(), result) | 
 |         msg = mailbox.MHMessage(_sample_message) | 
 |         msg.add_sequence('unseen') | 
 |         msg.add_sequence('replied') | 
 |         msg.add_sequence('flagged') | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             self.assertEqual(class_(msg).get_flags(), 'OFA') | 
 |  | 
 |     def test_mh_to_mh(self): | 
 |         # Convert MHMessage to MHMessage | 
 |         msg = mailbox.MHMessage(_sample_message) | 
 |         msg.add_sequence('unseen') | 
 |         msg.add_sequence('replied') | 
 |         msg.add_sequence('flagged') | 
 |         self.assertEqual(mailbox.MHMessage(msg).get_sequences(), | 
 |                          ['unseen', 'replied', 'flagged']) | 
 |  | 
 |     def test_mh_to_babyl(self): | 
 |         # Convert MHMessage to BabylMessage | 
 |         pairs = (('unseen', ['unseen']), ('replied', ['answered']), | 
 |                  ('flagged', [])) | 
 |         for setting, result in pairs: | 
 |             msg = mailbox.MHMessage(_sample_message) | 
 |             msg.add_sequence(setting) | 
 |             self.assertEqual(mailbox.BabylMessage(msg).get_labels(), result) | 
 |         msg = mailbox.MHMessage(_sample_message) | 
 |         msg.add_sequence('unseen') | 
 |         msg.add_sequence('replied') | 
 |         msg.add_sequence('flagged') | 
 |         self.assertEqual(mailbox.BabylMessage(msg).get_labels(), | 
 |                          ['unseen', 'answered']) | 
 |  | 
 |     def test_babyl_to_maildir(self): | 
 |         # Convert BabylMessage to MaildirMessage | 
 |         pairs = (('unseen', ''), ('deleted', 'ST'), ('filed', 'S'), | 
 |                  ('answered', 'RS'), ('forwarded', 'PS'), ('edited', 'S'), | 
 |                  ('resent', 'PS')) | 
 |         for setting, result in pairs: | 
 |             msg = mailbox.BabylMessage(_sample_message) | 
 |             msg.add_label(setting) | 
 |             self.assertEqual(mailbox.MaildirMessage(msg).get_flags(), result) | 
 |             self.assertEqual(mailbox.MaildirMessage(msg).get_subdir(), 'cur') | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         for label in ('unseen', 'deleted', 'filed', 'answered', 'forwarded', | 
 |                       'edited', 'resent'): | 
 |             msg.add_label(label) | 
 |         self.assertEqual(mailbox.MaildirMessage(msg).get_flags(), 'PRT') | 
 |         self.assertEqual(mailbox.MaildirMessage(msg).get_subdir(), 'cur') | 
 |  | 
 |     def test_babyl_to_mboxmmdf(self): | 
 |         # Convert BabylMessage to mboxMessage and MMDFMessage | 
 |         pairs = (('unseen', 'O'), ('deleted', 'ROD'), ('filed', 'RO'), | 
 |                  ('answered', 'ROA'), ('forwarded', 'RO'), ('edited', 'RO'), | 
 |                  ('resent', 'RO')) | 
 |         for setting, result in pairs: | 
 |             for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |                 msg = mailbox.BabylMessage(_sample_message) | 
 |                 msg.add_label(setting) | 
 |                 self.assertEqual(class_(msg).get_flags(), result) | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         for label in ('unseen', 'deleted', 'filed', 'answered', 'forwarded', | 
 |                       'edited', 'resent'): | 
 |             msg.add_label(label) | 
 |         for class_ in (mailbox.mboxMessage, mailbox.MMDFMessage): | 
 |             self.assertEqual(class_(msg).get_flags(), 'ODA') | 
 |  | 
 |     def test_babyl_to_mh(self): | 
 |         # Convert BabylMessage to MHMessage | 
 |         pairs = (('unseen', ['unseen']), ('deleted', []), ('filed', []), | 
 |                  ('answered', ['replied']), ('forwarded', []), ('edited', []), | 
 |                  ('resent', [])) | 
 |         for setting, result in pairs: | 
 |             msg = mailbox.BabylMessage(_sample_message) | 
 |             msg.add_label(setting) | 
 |             self.assertEqual(mailbox.MHMessage(msg).get_sequences(), result) | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         for label in ('unseen', 'deleted', 'filed', 'answered', 'forwarded', | 
 |                       'edited', 'resent'): | 
 |             msg.add_label(label) | 
 |         self.assertEqual(mailbox.MHMessage(msg).get_sequences(), | 
 |                          ['unseen', 'replied']) | 
 |  | 
 |     def test_babyl_to_babyl(self): | 
 |         # Convert BabylMessage to BabylMessage | 
 |         msg = mailbox.BabylMessage(_sample_message) | 
 |         msg.update_visible() | 
 |         for label in ('unseen', 'deleted', 'filed', 'answered', 'forwarded', | 
 |                       'edited', 'resent'): | 
 |             msg.add_label(label) | 
 |         msg2 = mailbox.BabylMessage(msg) | 
 |         self.assertEqual(msg2.get_labels(), ['unseen', 'deleted', 'filed', | 
 |                                              'answered', 'forwarded', 'edited', | 
 |                                              'resent']) | 
 |         self.assertEqual(msg.get_visible().keys(), msg2.get_visible().keys()) | 
 |         for key in msg.get_visible().keys(): | 
 |             self.assertEqual(msg.get_visible()[key], msg2.get_visible()[key]) | 
 |  | 
 |  | 
 | class TestProxyFileBase(TestBase): | 
 |  | 
 |     def _test_read(self, proxy): | 
 |         # Read by byte | 
 |         proxy.seek(0) | 
 |         self.assertEqual(proxy.read(), b'bar') | 
 |         proxy.seek(1) | 
 |         self.assertEqual(proxy.read(), b'ar') | 
 |         proxy.seek(0) | 
 |         self.assertEqual(proxy.read(2), b'ba') | 
 |         proxy.seek(1) | 
 |         self.assertEqual(proxy.read(-1), b'ar') | 
 |         proxy.seek(2) | 
 |         self.assertEqual(proxy.read(1000), b'r') | 
 |  | 
 |     def _test_readline(self, proxy): | 
 |         # Read by line | 
 |         linesep = os.linesep.encode() | 
 |         proxy.seek(0) | 
 |         self.assertEqual(proxy.readline(), b'foo' + linesep) | 
 |         self.assertEqual(proxy.readline(), b'bar' + linesep) | 
 |         self.assertEqual(proxy.readline(), b'fred' + linesep) | 
 |         self.assertEqual(proxy.readline(), b'bob') | 
 |         proxy.seek(2) | 
 |         self.assertEqual(proxy.readline(), b'o' + linesep) | 
 |         proxy.seek(6 + 2 * len(os.linesep)) | 
 |         self.assertEqual(proxy.readline(), b'fred' + linesep) | 
 |         proxy.seek(6 + 2 * len(os.linesep)) | 
 |         self.assertEqual(proxy.readline(2), b'fr') | 
 |         self.assertEqual(proxy.readline(-10), b'ed' + linesep) | 
 |  | 
 |     def _test_readlines(self, proxy): | 
 |         # Read multiple lines | 
 |         linesep = os.linesep.encode() | 
 |         proxy.seek(0) | 
 |         self.assertEqual(proxy.readlines(), [b'foo' + linesep, | 
 |                                            b'bar' + linesep, | 
 |                                            b'fred' + linesep, b'bob']) | 
 |         proxy.seek(0) | 
 |         self.assertEqual(proxy.readlines(2), [b'foo' + linesep]) | 
 |         proxy.seek(3 + len(linesep)) | 
 |         self.assertEqual(proxy.readlines(4 + len(linesep)), | 
 |                      [b'bar' + linesep, b'fred' + linesep]) | 
 |         proxy.seek(3) | 
 |         self.assertEqual(proxy.readlines(1000), [linesep, b'bar' + linesep, | 
 |                                                b'fred' + linesep, b'bob']) | 
 |  | 
 |     def _test_iteration(self, proxy): | 
 |         # Iterate by line | 
 |         linesep = os.linesep.encode() | 
 |         proxy.seek(0) | 
 |         iterator = iter(proxy) | 
 |         self.assertEqual(next(iterator), b'foo' + linesep) | 
 |         self.assertEqual(next(iterator), b'bar' + linesep) | 
 |         self.assertEqual(next(iterator), b'fred' + linesep) | 
 |         self.assertEqual(next(iterator), b'bob') | 
 |         self.assertRaises(StopIteration, next, iterator) | 
 |  | 
 |     def _test_seek_and_tell(self, proxy): | 
 |         # Seek and use tell to check position | 
 |         linesep = os.linesep.encode() | 
 |         proxy.seek(3) | 
 |         self.assertEqual(proxy.tell(), 3) | 
 |         self.assertEqual(proxy.read(len(linesep)), linesep) | 
 |         proxy.seek(2, 1) | 
 |         self.assertEqual(proxy.read(1 + len(linesep)), b'r' + linesep) | 
 |         proxy.seek(-3 - len(linesep), 2) | 
 |         self.assertEqual(proxy.read(3), b'bar') | 
 |         proxy.seek(2, 0) | 
 |         self.assertEqual(proxy.read(), b'o' + linesep + b'bar' + linesep) | 
 |         proxy.seek(100) | 
 |         self.assertFalse(proxy.read()) | 
 |  | 
 |     def _test_close(self, proxy): | 
 |         # Close a file | 
 |         self.assertFalse(proxy.closed) | 
 |         proxy.close() | 
 |         self.assertTrue(proxy.closed) | 
 |         # Issue 11700 subsequent closes should be a no-op. | 
 |         proxy.close() | 
 |         self.assertTrue(proxy.closed) | 
 |  | 
 |  | 
 | class TestProxyFile(TestProxyFileBase, unittest.TestCase): | 
 |  | 
 |     def setUp(self): | 
 |         self._path = support.TESTFN | 
 |         self._file = open(self._path, 'wb+') | 
 |  | 
 |     def tearDown(self): | 
 |         self._file.close() | 
 |         self._delete_recursively(self._path) | 
 |  | 
 |     def test_initialize(self): | 
 |         # Initialize and check position | 
 |         self._file.write(b'foo') | 
 |         pos = self._file.tell() | 
 |         proxy0 = mailbox._ProxyFile(self._file) | 
 |         self.assertEqual(proxy0.tell(), pos) | 
 |         self.assertEqual(self._file.tell(), pos) | 
 |         proxy1 = mailbox._ProxyFile(self._file, 0) | 
 |         self.assertEqual(proxy1.tell(), 0) | 
 |         self.assertEqual(self._file.tell(), pos) | 
 |  | 
 |     def test_read(self): | 
 |         self._file.write(b'bar') | 
 |         self._test_read(mailbox._ProxyFile(self._file)) | 
 |  | 
 |     def test_readline(self): | 
 |         self._file.write(bytes('foo%sbar%sfred%sbob' % (os.linesep, os.linesep, | 
 |                                                   os.linesep), 'ascii')) | 
 |         self._test_readline(mailbox._ProxyFile(self._file)) | 
 |  | 
 |     def test_readlines(self): | 
 |         self._file.write(bytes('foo%sbar%sfred%sbob' % (os.linesep, os.linesep, | 
 |                                                   os.linesep), 'ascii')) | 
 |         self._test_readlines(mailbox._ProxyFile(self._file)) | 
 |  | 
 |     def test_iteration(self): | 
 |         self._file.write(bytes('foo%sbar%sfred%sbob' % (os.linesep, os.linesep, | 
 |                                                   os.linesep), 'ascii')) | 
 |         self._test_iteration(mailbox._ProxyFile(self._file)) | 
 |  | 
 |     def test_seek_and_tell(self): | 
 |         self._file.write(bytes('foo%sbar%s' % (os.linesep, os.linesep), 'ascii')) | 
 |         self._test_seek_and_tell(mailbox._ProxyFile(self._file)) | 
 |  | 
 |     def test_close(self): | 
 |         self._file.write(bytes('foo%sbar%s' % (os.linesep, os.linesep), 'ascii')) | 
 |         self._test_close(mailbox._ProxyFile(self._file)) | 
 |  | 
 |  | 
 | class TestPartialFile(TestProxyFileBase, unittest.TestCase): | 
 |  | 
 |     def setUp(self): | 
 |         self._path = support.TESTFN | 
 |         self._file = open(self._path, 'wb+') | 
 |  | 
 |     def tearDown(self): | 
 |         self._file.close() | 
 |         self._delete_recursively(self._path) | 
 |  | 
 |     def test_initialize(self): | 
 |         # Initialize and check position | 
 |         self._file.write(bytes('foo' + os.linesep + 'bar', 'ascii')) | 
 |         pos = self._file.tell() | 
 |         proxy = mailbox._PartialFile(self._file, 2, 5) | 
 |         self.assertEqual(proxy.tell(), 0) | 
 |         self.assertEqual(self._file.tell(), pos) | 
 |  | 
 |     def test_read(self): | 
 |         self._file.write(bytes('***bar***', 'ascii')) | 
 |         self._test_read(mailbox._PartialFile(self._file, 3, 6)) | 
 |  | 
 |     def test_readline(self): | 
 |         self._file.write(bytes('!!!!!foo%sbar%sfred%sbob!!!!!' % | 
 |                          (os.linesep, os.linesep, os.linesep), 'ascii')) | 
 |         self._test_readline(mailbox._PartialFile(self._file, 5, | 
 |                                                  18 + 3 * len(os.linesep))) | 
 |  | 
 |     def test_readlines(self): | 
 |         self._file.write(bytes('foo%sbar%sfred%sbob?????' % | 
 |                          (os.linesep, os.linesep, os.linesep), 'ascii')) | 
 |         self._test_readlines(mailbox._PartialFile(self._file, 0, | 
 |                                                   13 + 3 * len(os.linesep))) | 
 |  | 
 |     def test_iteration(self): | 
 |         self._file.write(bytes('____foo%sbar%sfred%sbob####' % | 
 |                          (os.linesep, os.linesep, os.linesep), 'ascii')) | 
 |         self._test_iteration(mailbox._PartialFile(self._file, 4, | 
 |                                                   17 + 3 * len(os.linesep))) | 
 |  | 
 |     def test_seek_and_tell(self): | 
 |         self._file.write(bytes('(((foo%sbar%s$$$' % (os.linesep, os.linesep), 'ascii')) | 
 |         self._test_seek_and_tell(mailbox._PartialFile(self._file, 3, | 
 |                                                       9 + 2 * len(os.linesep))) | 
 |  | 
 |     def test_close(self): | 
 |         self._file.write(bytes('&foo%sbar%s^' % (os.linesep, os.linesep), 'ascii')) | 
 |         self._test_close(mailbox._PartialFile(self._file, 1, | 
 |                                               6 + 3 * len(os.linesep))) | 
 |  | 
 |  | 
 | ## Start: tests from the original module (for backward compatibility). | 
 |  | 
 | FROM_ = "From some.body@dummy.domain  Sat Jul 24 13:43:35 2004\n" | 
 | DUMMY_MESSAGE = """\ | 
 | From: some.body@dummy.domain | 
 | To: me@my.domain | 
 | Subject: Simple Test | 
 |  | 
 | This is a dummy message. | 
 | """ | 
 |  | 
 | class MaildirTestCase(unittest.TestCase): | 
 |  | 
 |     def setUp(self): | 
 |         # create a new maildir mailbox to work with: | 
 |         self._dir = support.TESTFN | 
 |         if os.path.isdir(self._dir): | 
 |             shutil.rmtree(self._dir) | 
 |         elif os.path.isfile(self._dir): | 
 |             os.unlink(self._dir) | 
 |         os.mkdir(self._dir) | 
 |         os.mkdir(os.path.join(self._dir, "cur")) | 
 |         os.mkdir(os.path.join(self._dir, "tmp")) | 
 |         os.mkdir(os.path.join(self._dir, "new")) | 
 |         self._counter = 1 | 
 |         self._msgfiles = [] | 
 |  | 
 |     def tearDown(self): | 
 |         list(map(os.unlink, self._msgfiles)) | 
 |         os.rmdir(os.path.join(self._dir, "cur")) | 
 |         os.rmdir(os.path.join(self._dir, "tmp")) | 
 |         os.rmdir(os.path.join(self._dir, "new")) | 
 |         os.rmdir(self._dir) | 
 |  | 
 |     def createMessage(self, dir, mbox=False): | 
 |         t = int(time.time() % 1000000) | 
 |         pid = self._counter | 
 |         self._counter += 1 | 
 |         filename = ".".join((str(t), str(pid), "myhostname", "mydomain")) | 
 |         tmpname = os.path.join(self._dir, "tmp", filename) | 
 |         newname = os.path.join(self._dir, dir, filename) | 
 |         with open(tmpname, "w") as fp: | 
 |             self._msgfiles.append(tmpname) | 
 |             if mbox: | 
 |                 fp.write(FROM_) | 
 |             fp.write(DUMMY_MESSAGE) | 
 |         if hasattr(os, "link"): | 
 |             os.link(tmpname, newname) | 
 |         else: | 
 |             with open(newname, "w") as fp: | 
 |                 fp.write(DUMMY_MESSAGE) | 
 |         self._msgfiles.append(newname) | 
 |         return tmpname | 
 |  | 
 |     def test_empty_maildir(self): | 
 |         """Test an empty maildir mailbox""" | 
 |         # Test for regression on bug #117490: | 
 |         # Make sure the boxes attribute actually gets set. | 
 |         self.mbox = mailbox.Maildir(support.TESTFN) | 
 |         #self.assertTrue(hasattr(self.mbox, "boxes")) | 
 |         #self.assertEqual(len(self.mbox.boxes), 0) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |  | 
 |     def test_nonempty_maildir_cur(self): | 
 |         self.createMessage("cur") | 
 |         self.mbox = mailbox.Maildir(support.TESTFN) | 
 |         #self.assertEqual(len(self.mbox.boxes), 1) | 
 |         self.assertIsNot(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |  | 
 |     def test_nonempty_maildir_new(self): | 
 |         self.createMessage("new") | 
 |         self.mbox = mailbox.Maildir(support.TESTFN) | 
 |         #self.assertEqual(len(self.mbox.boxes), 1) | 
 |         self.assertIsNot(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |  | 
 |     def test_nonempty_maildir_both(self): | 
 |         self.createMessage("cur") | 
 |         self.createMessage("new") | 
 |         self.mbox = mailbox.Maildir(support.TESTFN) | 
 |         #self.assertEqual(len(self.mbox.boxes), 2) | 
 |         self.assertIsNot(self.mbox.next(), None) | 
 |         self.assertIsNot(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |         self.assertIs(self.mbox.next(), None) | 
 |  | 
 | ## End: tests from the original module (for backward compatibility). | 
 |  | 
 |  | 
 | _sample_message = """\ | 
 | Return-Path: <gkj@gregorykjohnson.com> | 
 | X-Original-To: gkj+person@localhost | 
 | Delivered-To: gkj+person@localhost | 
 | Received: from localhost (localhost [127.0.0.1]) | 
 |         by andy.gregorykjohnson.com (Postfix) with ESMTP id 356ED9DD17 | 
 |         for <gkj+person@localhost>; Wed, 13 Jul 2005 17:23:16 -0400 (EDT) | 
 | Delivered-To: gkj@sundance.gregorykjohnson.com | 
 | Received: from localhost [127.0.0.1] | 
 |         by localhost with POP3 (fetchmail-6.2.5) | 
 |         for gkj+person@localhost (single-drop); Wed, 13 Jul 2005 17:23:16 -0400 (EDT) | 
 | Received: from andy.gregorykjohnson.com (andy.gregorykjohnson.com [64.32.235.228]) | 
 |         by sundance.gregorykjohnson.com (Postfix) with ESMTP id 5B056316746 | 
 |         for <gkj@gregorykjohnson.com>; Wed, 13 Jul 2005 17:23:11 -0400 (EDT) | 
 | Received: by andy.gregorykjohnson.com (Postfix, from userid 1000) | 
 |         id 490CD9DD17; Wed, 13 Jul 2005 17:23:11 -0400 (EDT) | 
 | Date: Wed, 13 Jul 2005 17:23:11 -0400 | 
 | From: "Gregory K. Johnson" <gkj@gregorykjohnson.com> | 
 | To: gkj@gregorykjohnson.com | 
 | Subject: Sample message | 
 | Message-ID: <20050713212311.GC4701@andy.gregorykjohnson.com> | 
 | Mime-Version: 1.0 | 
 | Content-Type: multipart/mixed; boundary="NMuMz9nt05w80d4+" | 
 | Content-Disposition: inline | 
 | User-Agent: Mutt/1.5.9i | 
 |  | 
 |  | 
 | --NMuMz9nt05w80d4+ | 
 | Content-Type: text/plain; charset=us-ascii | 
 | Content-Disposition: inline | 
 |  | 
 | This is a sample message. | 
 |  | 
 | -- | 
 | Gregory K. Johnson | 
 |  | 
 | --NMuMz9nt05w80d4+ | 
 | Content-Type: application/octet-stream | 
 | Content-Disposition: attachment; filename="text.gz" | 
 | Content-Transfer-Encoding: base64 | 
 |  | 
 | H4sICM2D1UIAA3RleHQAC8nILFYAokSFktSKEoW0zJxUPa7wzJIMhZLyfIWczLzUYj0uAHTs | 
 | 3FYlAAAA | 
 |  | 
 | --NMuMz9nt05w80d4+-- | 
 | """ | 
 |  | 
 | _bytes_sample_message = _sample_message.encode('ascii') | 
 |  | 
 | _sample_headers = { | 
 |     "Return-Path":"<gkj@gregorykjohnson.com>", | 
 |     "X-Original-To":"gkj+person@localhost", | 
 |     "Delivered-To":"gkj+person@localhost", | 
 |     "Received":"""from localhost (localhost [127.0.0.1]) | 
 |         by andy.gregorykjohnson.com (Postfix) with ESMTP id 356ED9DD17 | 
 |         for <gkj+person@localhost>; Wed, 13 Jul 2005 17:23:16 -0400 (EDT)""", | 
 |     "Delivered-To":"gkj@sundance.gregorykjohnson.com", | 
 |     "Received":"""from localhost [127.0.0.1] | 
 |         by localhost with POP3 (fetchmail-6.2.5) | 
 |         for gkj+person@localhost (single-drop); Wed, 13 Jul 2005 17:23:16 -0400 (EDT)""", | 
 |     "Received":"""from andy.gregorykjohnson.com (andy.gregorykjohnson.com [64.32.235.228]) | 
 |         by sundance.gregorykjohnson.com (Postfix) with ESMTP id 5B056316746 | 
 |         for <gkj@gregorykjohnson.com>; Wed, 13 Jul 2005 17:23:11 -0400 (EDT)""", | 
 |     "Received":"""by andy.gregorykjohnson.com (Postfix, from userid 1000) | 
 |         id 490CD9DD17; Wed, 13 Jul 2005 17:23:11 -0400 (EDT)""", | 
 |     "Date":"Wed, 13 Jul 2005 17:23:11 -0400", | 
 |     "From":""""Gregory K. Johnson" <gkj@gregorykjohnson.com>""", | 
 |     "To":"gkj@gregorykjohnson.com", | 
 |     "Subject":"Sample message", | 
 |     "Mime-Version":"1.0", | 
 |     "Content-Type":"""multipart/mixed; boundary="NMuMz9nt05w80d4+\"""", | 
 |     "Content-Disposition":"inline", | 
 |     "User-Agent": "Mutt/1.5.9i" } | 
 |  | 
 | _sample_payloads = ("""This is a sample message. | 
 |  | 
 | -- | 
 | Gregory K. Johnson | 
 | """, | 
 | """H4sICM2D1UIAA3RleHQAC8nILFYAokSFktSKEoW0zJxUPa7wzJIMhZLyfIWczLzUYj0uAHTs | 
 | 3FYlAAAA | 
 | """) | 
 |  | 
 |  | 
 | def test_main(): | 
 |     tests = (TestMailboxSuperclass, TestMaildir, TestMbox, TestMMDF, TestMH, | 
 |              TestBabyl, TestMessage, TestMaildirMessage, TestMboxMessage, | 
 |              TestMHMessage, TestBabylMessage, TestMMDFMessage, | 
 |              TestMessageConversion, TestProxyFile, TestPartialFile, | 
 |              MaildirTestCase, TestFakeMailBox) | 
 |     support.run_unittest(*tests) | 
 |     support.reap_children() | 
 |  | 
 |  | 
 | if __name__ == '__main__': | 
 |     test_main() |