def testRedo(self):
base_storage = FileStorage(self.storagefile)
blob_storage = BlobStorage(self.blob_dir, base_storage)
database = DB(blob_storage)
connection = database.open()
root = connection.root()
blob = Blob()
transaction.begin()
blob.open('w').write('this is state 1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
blob.open('w').write('this is state 2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), 'this is state 1')
serial = base64.encodestring(blob_storage._tid)
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), 'this is state 2')
database.close()
def testRedo(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
blob = Blob()
transaction.begin()
blob.open('w').write(b('this is state 1'))
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
blob.open('w').write(b('this is state 2'))
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), b('this is state 1'))
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), b('this is state 2'))
database.close()
def testRedo(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
blob = Blob()
transaction.begin()
with blob.open('w') as f:
f.write(b'this is state 1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
with blob.open('w') as f:
f.write(b'this is state 2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
with blob.open('r') as f:
self.assertEqual(f.read(), b'this is state 1')
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
with blob.open('r') as f:
self.assertEqual(f.read(), b'this is state 2')
database.close()
def testUndoAfterConsumption(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
with open('consume1', 'wb') as f:
f.write(b'this is state 1')
blob = Blob()
blob.consumeFile('consume1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
with open('consume2', 'wb') as f:
f.write(b'this is state 2')
blob.consumeFile('consume2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
with blob.open('r') as f:
data = f.read()
self.assertEqual(data, b'this is state 1')
database.close()
def testUndoAfterConsumption(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
with open('consume1', 'wb') as file:
file.write(b'this is state 1')
blob = Blob()
blob.consumeFile('consume1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
with open('consume2', 'wb') as file:
file.write(b'this is state 2')
blob.consumeFile('consume2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
with blob.open('r') as file:
self.assertEqual(file.read(), b'this is state 1')
database.close()
def testUndo(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
blob = Blob()
with blob.open('w') as f:
f.write(b'this is state 1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
with blob.open('w') as f:
f.write(b'this is state 2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
with blob.open('r') as f:
data = f.read()
self.assertEqual(data, b'this is state 1')
database.close()
def testUndoAfterConsumption(self):
base_storage = FileStorage(self.storagefile)
blob_storage = BlobStorage(self.blob_dir, base_storage)
database = DB(blob_storage)
connection = database.open()
root = connection.root()
transaction.begin()
open('consume1', 'w').write('this is state 1')
blob = Blob()
blob.consumeFile('consume1')
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
open('consume2', 'w').write('this is state 2')
blob.consumeFile('consume2')
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), 'this is state 1')
database.close()
def testRedoOfCreation(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
blob = Blob()
transaction.begin()
blob.open('w').write(b('this is state 1'))
root['blob'] = blob
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertRaises(KeyError, root.__getitem__, 'blob')
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), b('this is state 1'))
database.close()
def testRedoOfCreation(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
blob = Blob()
transaction.begin()
blob.open('w').write('this is state 1')
root['blob'] = blob
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertRaises(KeyError, root.__getitem__, 'blob')
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), 'this is state 1')
database.close()
def testUndoWithoutPreviousVersion(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
root['blob'] = Blob()
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
# the blob footprint object should exist no longer
self.assertRaises(KeyError, root.__getitem__, 'blob')
database.close()
def testUndoWithoutPreviousVersion(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
root['blob'] = Blob()
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
# the blob footprint object should exist no longer
self.assertRaises(KeyError, root.__getitem__, 'blob')
database.close()
def testUndo(self):
database = DB(self._storage)
connection = database.open()
root = connection.root()
transaction.begin()
blob = Blob()
blob.open('w').write(b('this is state 1'))
root['blob'] = blob
transaction.commit()
transaction.begin()
blob = root['blob']
blob.open('w').write(b('this is state 2'))
transaction.commit()
database.undo(database.undoLog(0, 1)[0]['id'])
transaction.commit()
self.assertEqual(blob.open('r').read(), b('this is state 1'))
database.close()
