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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Tests for mail boxes."""
__metaclass__ = type
import os
from shutil import rmtree
import tempfile
from unittest import TestLoader
from canonical.launchpad.interfaces.mailbox import IMailBox
from canonical.launchpad.webapp.testing import verifyObject
from lp.services.mail.mailbox import DirectoryMailBox
from lp.testing import TestCase
class TestDirectoryMailBox(TestCase):
def setUp(self):
super(TestDirectoryMailBox, self).setUp()
# Create a temp directory.
self.email_dir = tempfile.mkdtemp()
self.addCleanup(rmtree, self.email_dir)
def test_verify_interface(self):
# Make sure that the object actually implements the interface.
box = DirectoryMailBox(self.email_dir)
verifyObject(IMailBox, box)
def test_initially_empty(self):
# Since the new directory has no files, the box is empty.
box = DirectoryMailBox(self.email_dir)
self.assertEqual(0, len(list(box.items())))
def _add_mailfile(self, filename, contents=None):
# Create a file in the email_dir with the specified contents.
f = open(os.path.join(self.email_dir, filename), 'w')
if contents:
f.write(contents)
f.close()
def test_items(self):
# The items generator provides the filename and content.
self._add_mailfile('foo', 'This is the content')
box = DirectoryMailBox(self.email_dir)
[mail] = list(box.items())
self.assertEqual('foo', os.path.basename(mail[0]))
self.assertEqual('This is the content', mail[1])
def test_delete(self):
# Deleting the item removes the file from the mail dir.
self._add_mailfile('foo', 'This is the content')
self._add_mailfile('bar', 'More content')
box = DirectoryMailBox(self.email_dir)
box.delete(os.path.join(self.email_dir, 'foo'))
items = list(box.items())
self.assertEqual(1, len(items))
def test_deleting_while_iterating(self):
# Deleting while iterating through should be fine.
self._add_mailfile('foo', 'This is the content')
self._add_mailfile('bar', 'More content')
self._add_mailfile('baz', 'More content')
box = DirectoryMailBox(self.email_dir)
for id, content in box.items():
box.delete(id)
self.assertEqual(0, len(list(box.items())))
def test_suite():
return TestLoader().loadTestsFromName(__name__)
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