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from miro import database
from miro import app
from miro import iconcache
from miro import item
from miro import feed
from miro import guide
from miro.test.framework import EventLoopTest
class IconCacheTest(EventLoopTest):
def setUp(self):
EventLoopTest.setUp(self)
self.feed = feed.Feed(u'http://example.com/')
self.item = item.Item(item.FeedParserValues({}), feed_id=self.feed.id)
self.guide = guide.ChannelGuide(u'http://example.com/guide/')
def test_ddbobject_removed(self):
"""Test that we remove our IconCache DDBObject when it's
container is removed.
"""
feed_icon_cache = self.feed.icon_cache
item_icon_cache = self.item.icon_cache
guide_icon_cache = self.guide.icon_cache
self.item.remove()
self.feed.remove()
self.guide.remove()
self.assert_(not feed_icon_cache.id_exists())
self.assert_(not item_icon_cache.id_exists())
self.assert_(not guide_icon_cache.id_exists())
def test_remove_before_icon_cache_referenced(self):
# Items create the icon_cache attribute lazily when restored
# from db. Make sure that removing an item before it's
# created is okay.
# trick LiveStorage into restoring our feed, item and guide
self.feed = self.reload_object(self.feed)
self.item = self.reload_object(self.item)
self.guide = self.reload_object(self.guide)
feed_icon_cache_id = self.feed.icon_cache_id
item_icon_cache_id = self.item.icon_cache_id
guide_icon_cache_id = self.guide.icon_cache_id
self.item.remove()
self.feed.remove()
self.guide.remove()
self.assertRaises(database.ObjectNotFoundError,
iconcache.IconCache.get_by_id, feed_icon_cache_id)
self.assertRaises(database.ObjectNotFoundError,
iconcache.IconCache.get_by_id, item_icon_cache_id)
self.assertRaises(database.ObjectNotFoundError,
iconcache.IconCache.get_by_id, guide_icon_cache_id)
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