def __estimate_dumpsize(self):
"""
Makes a guess on the dump size using internal database metrics
:return: A value in bytes, or None (unknown)
"""
statement = query_factory.get_dumpsize_estimate(self.db_name)
process_output = self.__runner.get_single_result(statement)
try:
return int(process_output)
except ValueError:
# Value unparsable, likely NULL
return None
def test_get_dumpsize_estimate():
assert query_factory.get_dumpsize_estimate("test") == "SELECT 1;"