55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
# Copyright 2024-present MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests to ensure that the async API is properly concurrent with asyncio."""
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from __future__ import annotations
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import asyncio
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import time
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from test.asynchronous import AsyncIntegrationTest, async_client_context
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from test.utils_shared import delay
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_IS_SYNC = False
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class TestAsyncConcurrency(AsyncIntegrationTest):
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async def _task(self, client):
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await client.db.test.find_one({"$where": delay(0.20)})
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async def test_concurrency(self):
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tasks = []
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iterations = 5
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client = await self.async_single_client()
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await client.db.test.drop()
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await client.db.test.insert_one({"x": 1})
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start = time.time()
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for _ in range(iterations):
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await self._task(client)
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sequential_time = time.time() - start
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start = time.time()
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for i in range(iterations):
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tasks.append(self._task(client))
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await asyncio.gather(*tasks)
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concurrent_time = time.time() - start
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percent_faster = (sequential_time - concurrent_time) / concurrent_time * 100
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# We expect the concurrent tasks to be at least 75% faster on all platforms as a conservative benchmark
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self.assertGreaterEqual(percent_faster, 75)
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