def test_query_num_queries_is_independent_of_num_nodes_and_events(self):
# 1 query for all the select_related's.
expected_queries = 1
events_per_node = 5
num_nodes_per_group = 5
events_per_group = num_nodes_per_group * events_per_node
self.make_nodes_in_group_with_events(
num_nodes_per_group, events_per_node)
handler = events_module.EventsHandler()
query_1_count, query_1_result = (
count_queries(handler.query, RequestFixture(
{'op': 'query', 'level': 'DEBUG'}, ['op', 'level'])))
self.make_nodes_in_group_with_events(
num_nodes_per_group, events_per_node)
query_2_count, query_2_result = (
count_queries(handler.query, RequestFixture(
{'op': 'query', 'level': 'DEBUG'}, ['op', 'level'])))
# This check is to notify the developer that a change was made that
# affects the number of queries performed when doing an event listing.
# If this happens, consider your prefetching and adjust accordingly.
self.assertEqual(events_per_group, int(query_1_result['count']))
self.assertEqual(
expected_queries, query_1_count,
"Number of queries has changed; make sure this is expected.")
self.assertEqual(events_per_group * 2, int(query_2_result['count']))
self.assertEqual(
expected_queries, query_2_count,
"Number of queries is not independent of the number of nodes.")
def test_query_num_queries_is_independent_of_num_nodes_and_events(self):
# Prevent RBAC from making a query.
self.useFixture(RBACForceOffFixture())
expected_queries = 1
events_per_node = 5
num_nodes_per_group = 5
events_per_group = num_nodes_per_group * events_per_node
self.make_nodes_in_group_with_events(num_nodes_per_group,
events_per_node)
handler = events_module.EventsHandler()
query_1_count, query_1_result = count_queries(
handler.query,
RequestFixture({
"op": "query",
"level": "DEBUG"
}, ["op", "level"]),
)
self.make_nodes_in_group_with_events(num_nodes_per_group,
events_per_node)
query_2_count, query_2_result = count_queries(
handler.query,
RequestFixture({
"op": "query",
"level": "DEBUG"
}, ["op", "level"]),
)
# This check is to notify the developer that a change was made that
# affects the number of queries performed when doing an event listing.
# If this happens, consider your prefetching and adjust accordingly.
self.assertEqual(events_per_group, int(query_1_result["count"]))
self.assertEqual(
expected_queries,
query_1_count,
"Number of queries has changed; make sure this is expected.",
)
self.assertEqual(events_per_group * 2, int(query_2_result["count"]))
self.assertEqual(
query_1_count,
query_2_count,
"Number of queries is not independent of the number of nodes.",
)