def test_should_return_true_if_there_is_no_backups(self, _):
# given
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertTrue(result, "OnDemandShouldBackupPredicate should return TRUE "
"if there is no backups")
def test_should_return_false_if_table_is_external_or_view_type(self, _):
# given
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertFalse(
result, "OnDemandShouldBackupPredicate should return FALSE "
"if object is table or external type")
def test_should_return_false_if_table_not_exist_anymore(self, _):
# given
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertFalse(
result, "OnDemandShouldBackupPredicate should return FALSE "
"if table not exists")
def test_should_return_false_if_schema_is_not_defined(self, _):
# given
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertFalse(
result, "OnDemandShouldBackupPredicate should return FALSE "
"if table has no schema")
def test_should_return_true_if_table_was_changed_after_last_backup(self, _):
# given
backup = Backup(
parent=self.table.key,
last_modified=datetime(2016, 11, 13, 15, 00)
)
backup.put()
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertTrue(result, "OnDemandShouldBackupPredicate should return TRUE "
"if table was changed after last backup")
def test_should_return_true_if_table_was_changed_before_last_backup(self, _): # nopep8 pylint: disable=C0301
# given
backup = Backup(
parent=self.table.key,
last_modified=datetime(2016, 11, 13, 15, 00)
)
backup.put()
predicate = OnDemandBackupPredicate()
# when
result = predicate.test(self.big_query_table_metadata, self.table)
# then
self.assertTrue(result, "OnDemandShouldBackupPredicate should return FALSE "
"if table was changed before "
"last backup was made")
def start(table_reference):
big_query_table_metadata = BigQueryTableMetadata.get_table_by_reference(
table_reference)
BackupProcess(
table_reference=table_reference,
big_query=BigQuery(),
big_query_table_metadata=big_query_table_metadata,
should_backup_predicate=OnDemandBackupPredicate()).start()
def start(table_reference):
big_query_table_metadata = BigQueryTableMetadata.get_table_by_reference(
table_reference)
if big_query_table_metadata.is_daily_partitioned(
) and not big_query_table_metadata.is_partition():
raise ParameterValidationException(
"Partition id is required for partitioned table in on-demand mode"
)
BackupProcess(
table_reference=table_reference,
big_query=BigQuery(),
big_query_table_metadata=big_query_table_metadata,
should_backup_predicate=OnDemandBackupPredicate()).start()
def test_should_raise_ParameterValidationException_if_table_is_external_or_view_type(self, _):
# given
predicate = OnDemandBackupPredicate()
# when-then
with self.assertRaises(ParameterValidationException):
predicate.test(self.big_query_table_metadata, self.table)
def test_should_raise_NotFoundException_if_table_not_exist_anymore(self, _):
# given
predicate = OnDemandBackupPredicate()
# when-then
with self.assertRaises(NotFoundException):
predicate.test(self.big_query_table_metadata, self.table)
def test_should_raise_ParameterValidationException_if_schema_is_not_defined(self, _):
# given
predicate = OnDemandBackupPredicate()
# when-then
with self.assertRaises(ParameterValidationException):
predicate.test(self.big_query_table_metadata, self.table)
