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66 lines
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Python

# Copyright The OpenTelemetry Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import asyncio
import sys
from unittest import skipIf
from unittest.mock import patch
# pylint: disable=no-name-in-module
from opentelemetry.instrumentation.asyncio import AsyncioInstrumentor
from opentelemetry.instrumentation.asyncio.environment_variables import (
OTEL_PYTHON_ASYNCIO_COROUTINE_NAMES_TO_TRACE,
)
from opentelemetry.test.test_base import TestBase
from opentelemetry.trace import get_tracer
class TestAsyncioAnext(TestBase):
@patch.dict(
"os.environ",
{OTEL_PYTHON_ASYNCIO_COROUTINE_NAMES_TO_TRACE: "async_func"},
)
def setUp(self):
super().setUp()
AsyncioInstrumentor().instrument()
self._tracer = get_tracer(
__name__,
)
def tearDown(self):
super().tearDown()
AsyncioInstrumentor().uninstrument()
# Asyncio anext() does not have __name__ attribute, which is used to determine if the coroutine should be traced.
# This test is to ensure that the instrumentation does not break when the coroutine does not have __name__ attribute.
# Additionally, ensure the coroutine is actually awaited.
@skipIf(
sys.version_info < (3, 10), "anext is only available in Python 3.10+"
)
def test_asyncio_anext(self):
async def main():
async def async_gen():
# nothing special about this range other than to avoid returning a zero
# from a function named 'main' (which might cause confusion about intent)
for it in range(2, 4):
yield it
async_gen_instance = async_gen()
agen = anext(async_gen_instance) # noqa: F821
return await asyncio.create_task(agen)
ret = asyncio.run(main())
self.assertEqual(ret, 2) # first iteration from range()
spans = self.memory_exporter.get_finished_spans()
self.assertEqual(len(spans), 0)