chainsyncer/chainsyncer/unittest/store.py

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# standard imports
import os
import stat
import unittest
import shutil
import tempfile
import logging
# local imports
from chainsyncer.session import SyncSession
from chainsyncer.error import (
LockError,
FilterDone,
IncompleteFilterError,
SyncDone,
)
from chainsyncer.unittest import (
MockFilter,
MockItem,
)
logging.STATETRACE = 5
logg = logging.getLogger(__name__)
logg.setLevel(logging.STATETRACE)
def state_change_callback(k, old_state, new_state):
logg.log(logging.STATETRACE, 'state change: {} {} -> {}'.format(k, old_state, new_state))
def filter_change_callback(k, old_state, new_state):
logg.log(logging.STATETRACE, 'filter change: {} {} -> {}'.format(k, old_state, new_state))
class TestStoreBase(unittest.TestCase):
def setUp(self):
self.path = tempfile.mkdtemp()
self.store_factory = None
self.persist = True
@classmethod
def link(cls, target):
for v in [
"default",
"store_start",
"store_resume",
"sync_process_nofilter",
"sync_process_onefilter",
"sync_process_outoforder",
"sync_process_interrupt",
"sync_process_reset",
"sync_process_done",
"sync_head_future",
"sync_history_interrupted",
"sync_history_complete",
]:
setattr(target, 'test_' + v, getattr(cls, 't_' + v))
def tearDown(self):
shutil.rmtree(self.path)
def t_default(self):
bogus_item = MockItem(0, 0, 0, 0)
store = self.store_factory()
fp = os.path.join(self.path, store.session_id)
session_id = store.session_id
st = None
try:
st = os.stat(fp)
except FileNotFoundError as e:
logg.warning('error {} persist {}'.format(e, self.persist))
if self.persist:
raise e
if st != None:
self.assertTrue(stat.S_ISDIR(st.st_mode))
self.assertTrue(store.is_default)
fpd = os.path.join(self.path, 'default')
try:
st = os.stat(fpd)
except FileNotFoundError as e:
logg.warning('error {} persist {}'.format(e, self.persist))
if self.persist:
raise e
if st != None:
self.assertTrue(stat.S_ISDIR(st.st_mode))
self.assertTrue(store.is_default)
fpd = os.path.realpath(fpd)
self.assertEqual(fpd, fp)
store.stop(bogus_item)
store = self.store_factory()
fpr = os.path.join(self.path, session_id)
self.assertEqual(fp, fpr)
self.assertTrue(store.is_default)
store.stop(bogus_item)
store = self.store_factory('default')
fpr = os.path.join(self.path, session_id)
self.assertEqual(fp, fpr)
self.assertTrue(store.is_default)
store.stop(bogus_item)
store = self.store_factory('foo')
fpf = os.path.join(self.path, 'foo')
try:
st = os.stat(fpf)
except FileNotFoundError as e:
logg.warning('error {} persist {}'.format(e, self.persist))
if self.persist:
raise e
if st != None:
self.assertTrue(stat.S_ISDIR(st.st_mode))
self.assertFalse(store.is_default)
def t_store_start(self):
bogus_item = MockItem(0, 0, 0, 0)
store = self.store_factory()
store.start(42)
self.assertTrue(store.first)
store.stop(bogus_item)
if self.persist:
store = self.store_factory()
store.start()
self.assertFalse(store.first)
def t_store_resume(self):
store = self.store_factory()
store.start(13)
self.assertTrue(store.first)
# todo not done
def t_sync_process_nofilter(self):
store = self.store_factory()
session = SyncSession(store)
session.start()
o = session.get(0)
with self.assertRaises(FilterDone):
o.advance()
def t_sync_process_onefilter(self):
store = self.store_factory()
session = SyncSession(store)
fltr_one = MockFilter('foo')
store.register(fltr_one)
session.start()
o = session.get(0)
o.advance()
o.release()
def t_sync_process_outoforder(self):
store = self.store_factory()
session = SyncSession(store)
fltr_one = MockFilter('foo')
store.register(fltr_one)
fltr_two = MockFilter('two')
store.register(fltr_two)
session.start()
o = session.get(0)
o.advance()
with self.assertRaises(LockError):
o.advance()
o.release()
with self.assertRaises(LockError):
o.release()
o.advance()
o.release()
def t_sync_process_interrupt(self):
store = self.store_factory()
session = SyncSession(store)
fltr_one = MockFilter('foo')
store.register(fltr_one)
fltr_two = MockFilter('bar')
store.register(fltr_two)
session.start()
o = session.get(0)
o.advance()
o.release(interrupt=True)
with self.assertRaises(FilterDone):
o.advance()
def t_sync_process_reset(self):
store = self.store_factory()
session = SyncSession(store)
fltr_one = MockFilter('foo')
store.register(fltr_one)
fltr_two = MockFilter('bar')
store.register(fltr_two)
session.start()
o = session.get(0)
o.advance()
with self.assertRaises(LockError):
o.reset()
o.release()
with self.assertRaises(IncompleteFilterError):
o.reset()
o.advance()
o.release()
with self.assertRaises(FilterDone):
o.advance()
o.reset()
def t_sync_process_done(self):
store = self.store_factory()
session = SyncSession(store)
fltr_one = MockFilter('foo')
store.register(fltr_one)
session.start(target=0)
o = session.get(0)
o.advance()
o.release()
with self.assertRaises(FilterDone):
o.advance()
o.reset()
with self.assertRaises(SyncDone):
o.next(advance_block=True)
def t_sync_head_future(self):
store = self.store_factory('foo')
session = SyncSession(store)
session.start()
o = session.get(0)
o.next(advance_block=True)
o.next(advance_block=True)
session.stop(o)
if self.persist:
store = self.store_factory('foo')
store.start()
o = store.get(2)
def t_sync_history_interrupted(self):
if not self.persist:
return
bogus_item = MockItem(0, 0, 0, 0)
store = self.store_factory('foo')
session = SyncSession(store)
session.start(target=13)
o = session.get(0)
o.next(advance_block=True)
o.next(advance_block=True)
session.stop(o)
store.stop(bogus_item)
store = self.store_factory('foo')
store.start()
o = store.get(0)
self.assertEqual(o.cursor, 2)
self.assertEqual(o.target, 13)
o.next(advance_block=True)
o.next(advance_block=True)
store.stop(bogus_item)
store = self.store_factory('foo')
store.start()
self.assertEqual(o.cursor, 4)
self.assertEqual(o.target, 13)
def t_sync_history_complete(self):
store = self.store_factory('foo')
session = SyncSession(store)
session.start(target=3)
o = session.get(0)
o.next(advance_block=True)
o.next(advance_block=True)
o.next(advance_block=True)
with self.assertRaises(SyncDone):
o.next(advance_block=True)