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# The MIT License (MIT)
# Copyright (c) Microsoft Corporation. All rights reserved.
import unittest
import uuid
import pytest
import azure.cosmos._base as base
import azure.cosmos.cosmos_client as cosmos_client
import test_config
from azure.cosmos._execution_context import base_execution_context as base_execution_context
from azure.cosmos.exceptions import CosmosHttpResponseError
from azure.cosmos.partition_key import PartitionKey
def get_database_link(database):
return 'dbs/' + database.id
def get_document_collection_link(database, document_collection):
return get_database_link(database) + '/colls/' + document_collection.id
@pytest.mark.cosmosEmulator
class TestQueryExecutionContextEndToEnd(unittest.TestCase):
"""Routing Map Functionalities end-to-end Tests.
"""
created_collection = None
document_definitions = None
created_db = None
client: cosmos_client.CosmosClient = None
config = test_config.TestConfig
host = test_config.TestConfig.host
masterKey = test_config.TestConfig.masterKey
connectionPolicy = test_config.TestConfig.connectionPolicy
TEST_DATABASE_ID = config.TEST_DATABASE_ID
@classmethod
def setUpClass(cls):
if (cls.masterKey == '[YOUR_KEY_HERE]' or
cls.host == '[YOUR_ENDPOINT_HERE]'):
raise Exception(
"You must specify your Azure Cosmos account values for "
"'masterKey' and 'host' at the top of this class to run the "
"tests.")
cls.client = cosmos_client.CosmosClient(cls.host, cls.masterKey)
cls.created_db = cls.client.get_database_client(cls.TEST_DATABASE_ID)
cls.created_collection = cls.created_db.create_container(
id='query_execution_context_tests_' + str(uuid.uuid4()),
partition_key=PartitionKey(path='/id', kind='Hash')
)
cls.document_definitions = []
# create a document using the document definition
for i in range(20):
d = {'id': str(i),
'name': 'sample document',
'spam': 'eggs' + str(i),
'key': 'value'}
cls.document_definitions.append(d)
cls.insert_doc(cls.document_definitions)
@classmethod
def tearDownClass(cls):
try:
cls.created_db.delete_container(cls.created_collection.id)
except CosmosHttpResponseError:
pass
def setUp(self):
# sanity check:
partition_key_ranges = list(self.client.client_connection._ReadPartitionKeyRanges(
get_document_collection_link(self.created_db, self.created_collection)))
self.assertGreaterEqual(len(partition_key_ranges), 1)
# sanity check: read documents after creation
queried_docs = list(self.created_collection.read_all_items())
self.assertEqual(
len(queried_docs),
len(self.document_definitions),
'create should increase the number of documents')
def test_no_query_default_execution_context(self):
options = {'maxItemCount': 2}
self._test_default_execution_context(options, None, 20)
def test_no_query_default_execution_context_with_small_last_page(self):
options = {'maxItemCount': 3}
self._test_default_execution_context(options, None, 20)
def test_simple_query_default_execution_context(self):
query = {
'query': 'SELECT * FROM root r WHERE r.id != @id',
'parameters': [
{'name': '@id', 'value': '5'}
]
}
options = {'enableCrossPartitionQuery': True, 'maxItemCount': 2}
res = self.created_collection.query_items(
query=query,
enable_cross_partition_query=True,
max_item_count=2
)
self.assertEqual(len(list(res)), 19)
self._test_default_execution_context(options, query, 19)
def test_simple_query_default_execution_context_with_small_last_page(self):
query = {
'query': 'SELECT * FROM root r WHERE r.id != @id',
'parameters': [
{'name': '@id', 'value': '5'}
]
}
options = {}
options['enableCrossPartitionQuery'] = True
options['maxItemCount'] = 3
self._test_default_execution_context(options, query, 19)
def _test_default_execution_context(self, options, query, expected_number_of_results):
page_size = options['maxItemCount']
collection_link = get_document_collection_link(self.created_db, self.created_collection)
path = base.GetPathFromLink(collection_link, 'docs')
collection_id = base.GetResourceIdOrFullNameFromLink(collection_link)
def fetch_fn(options):
return self.client.client_connection.QueryFeed(path,
collection_id,
query,
options)
######################################
# test next() behavior
######################################
ex = base_execution_context._DefaultQueryExecutionContext(self.client.client_connection, options, fetch_fn)
it = ex.__iter__()
def invokeNext():
return next(it)
results = {}
# validate that invocations of next() produces the same results as expected
for _ in range(expected_number_of_results):
item = invokeNext()
results[item['id']] = item
self.assertEqual(len(results), expected_number_of_results)
# after the result set is exhausted, invoking next must raise a StopIteration exception
self.assertRaises(StopIteration, invokeNext)
######################################
# test fetch_next_block() behavior
######################################
ex = base_execution_context._DefaultQueryExecutionContext(self.client.client_connection, options, fetch_fn)
results = {}
cnt = 0
fetched_res = ex.fetch_next_block()
fetched_size = 0
while fetched_res is not None and len(fetched_res) > 0:
fetched_size = len(fetched_res)
for item in fetched_res:
results[item['id']] = item
cnt += fetched_size
fetched_res = ex.fetch_next_block()
# validate the number of collected results
self.assertEqual(len(results), expected_number_of_results)
self.assertTrue(fetched_size > 0, "fetched size is 0")
self.assertTrue(fetched_size <= page_size, "fetched page size greater than page size")
# no more results will be returned
self.assertEqual(ex.fetch_next_block(), [])
@classmethod
def insert_doc(cls, document_definitions):
# create a document using the document definition
created_docs = []
for d in document_definitions:
created_doc = cls.created_collection.create_item(body=d)
created_docs.append(created_doc)
return created_docs
if __name__ == "__main__":
unittest.main()
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