def test_backup(self): # {{{
'Test the automatic backup of changed metadata'
cl = self.cloned_library
cache = self.init_cache(cl)
ae, af, sf, ff = self.assertEqual, self.assertFalse, cache.set_field, cache.field_for
# First empty dirtied
cache.dump_metadata()
af(cache.dirtied_cache)
from calibre.db.backup import MetadataBackup
interval = 0.01
mb = MetadataBackup(cache, interval=interval, scheduling_interval=0)
mb.start()
try:
ae(sf('title', {1:'title1', 2:'title2', 3:'title3'}), {1,2,3})
ae(sf('authors', {1:'author1 & author2', 2:'author1 & author2', 3:'author1 & author2'}), {1,2,3})
count = 6
while cache.dirty_queue_length() and count > 0:
mb.join(2)
count -= 1
af(cache.dirty_queue_length())
finally:
mb.stop()
mb.join(2)
af(mb.is_alive())
from calibre.ebooks.metadata.opf2 import OPF
for book_id in (1, 2, 3):
raw = cache.read_backup(book_id)
opf = OPF(BytesIO(raw))
ae(opf.title, 'title%d'%book_id)
ae(opf.authors, ['author1', 'author2'])
def test_backup(self): # {{{
'Test the automatic backup of changed metadata'
cl = self.cloned_library
cache = self.init_cache(cl)
ae, af, sf, ff = self.assertEqual, self.assertFalse, cache.set_field, cache.field_for
# First empty dirtied
cache.dump_metadata()
af(cache.dirtied_cache)
from calibre.db.backup import MetadataBackup
interval = 0.01
mb = MetadataBackup(cache, interval=interval, scheduling_interval=0)
mb.start()
try:
ae(sf('title', {1:'title1', 2:'title2', 3:'title3'}), {1,2,3})
ae(sf('authors', {1:'author1 & author2', 2:'author1 & author2', 3:'author1 & author2'}), {1,2,3})
count = 6
while cache.dirty_queue_length() and count > 0:
mb.join(interval)
count -= 1
af(cache.dirty_queue_length())
finally:
mb.stop()
mb.join(interval)
af(mb.is_alive())
from calibre.ebooks.metadata.opf2 import OPF
for book_id in (1, 2, 3):
raw = cache.read_backup(book_id)
opf = OPF(BytesIO(raw))
ae(opf.title, 'title%d'%book_id)
ae(opf.authors, ['author1', 'author2'])