Files
2021-06-11 09:50:06 -07:00

384 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 abc
from unittest import mock
import httpretty
import requests
import opentelemetry.instrumentation.requests
from opentelemetry import context, trace
from opentelemetry.instrumentation.requests import RequestsInstrumentor
from opentelemetry.instrumentation.utils import _SUPPRESS_INSTRUMENTATION_KEY
from opentelemetry.propagate import get_global_textmap, set_global_textmap
from opentelemetry.sdk import resources
from opentelemetry.semconv.trace import SpanAttributes
from opentelemetry.test.mock_textmap import MockTextMapPropagator
from opentelemetry.test.test_base import TestBase
from opentelemetry.trace import StatusCode
class InvalidResponseObjectException(Exception):
def __init__(self):
super().__init__()
self.response = {}
class RequestsIntegrationTestBase(abc.ABC):
# pylint: disable=no-member
URL = "http://httpbin.org/status/200"
# pylint: disable=invalid-name
def setUp(self):
super().setUp()
RequestsInstrumentor().instrument()
httpretty.enable()
httpretty.register_uri(httpretty.GET, self.URL, body="Hello!")
# pylint: disable=invalid-name
def tearDown(self):
super().tearDown()
RequestsInstrumentor().uninstrument()
httpretty.disable()
def assert_span(self, exporter=None, num_spans=1):
if exporter is None:
exporter = self.memory_exporter
span_list = exporter.get_finished_spans()
self.assertEqual(num_spans, len(span_list))
if num_spans == 0:
return None
if num_spans == 1:
return span_list[0]
return span_list
@staticmethod
@abc.abstractmethod
def perform_request(url: str, session: requests.Session = None):
pass
def test_basic(self):
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span()
self.assertIs(span.kind, trace.SpanKind.CLIENT)
self.assertEqual(span.name, "HTTP GET")
self.assertEqual(
span.attributes,
{
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_URL: self.URL,
SpanAttributes.HTTP_STATUS_CODE: 200,
},
)
self.assertIs(span.status.status_code, trace.StatusCode.UNSET)
self.check_span_instrumentation_info(
span, opentelemetry.instrumentation.requests
)
def test_name_callback(self):
def name_callback(method, url):
return "GET" + url
RequestsInstrumentor().uninstrument()
RequestsInstrumentor().instrument(name_callback=name_callback)
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span()
self.assertEqual(span.name, "GET" + self.URL)
def test_name_callback_default(self):
def name_callback(method, url):
return 123
RequestsInstrumentor().uninstrument()
RequestsInstrumentor().instrument(name_callback=name_callback)
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span()
self.assertEqual(span.name, "HTTP GET")
def test_not_foundbasic(self):
url_404 = "http://httpbin.org/status/404"
httpretty.register_uri(
httpretty.GET, url_404, status=404,
)
result = self.perform_request(url_404)
self.assertEqual(result.status_code, 404)
span = self.assert_span()
self.assertEqual(
span.attributes.get(SpanAttributes.HTTP_STATUS_CODE), 404
)
self.assertIs(
span.status.status_code, trace.StatusCode.ERROR,
)
def test_uninstrument(self):
RequestsInstrumentor().uninstrument()
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
self.assert_span(num_spans=0)
# instrument again to avoid annoying warning message
RequestsInstrumentor().instrument()
def test_uninstrument_session(self):
session1 = requests.Session()
RequestsInstrumentor().uninstrument_session(session1)
result = self.perform_request(self.URL, session1)
self.assertEqual(result.text, "Hello!")
self.assert_span(num_spans=0)
# Test that other sessions as well as global requests is still
# instrumented
session2 = requests.Session()
result = self.perform_request(self.URL, session2)
self.assertEqual(result.text, "Hello!")
self.assert_span()
self.memory_exporter.clear()
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
self.assert_span()
def test_suppress_instrumentation(self):
token = context.attach(
context.set_value(_SUPPRESS_INSTRUMENTATION_KEY, True)
)
try:
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
finally:
context.detach(token)
self.assert_span(num_spans=0)
def test_not_recording(self):
with mock.patch("opentelemetry.trace.INVALID_SPAN") as mock_span:
RequestsInstrumentor().uninstrument()
RequestsInstrumentor().instrument(
tracer_provider=trace._DefaultTracerProvider()
)
mock_span.is_recording.return_value = False
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
self.assert_span(None, 0)
self.assertFalse(mock_span.is_recording())
self.assertTrue(mock_span.is_recording.called)
self.assertFalse(mock_span.set_attribute.called)
self.assertFalse(mock_span.set_status.called)
def test_distributed_context(self):
previous_propagator = get_global_textmap()
try:
set_global_textmap(MockTextMapPropagator())
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span()
headers = dict(httpretty.last_request().headers)
self.assertIn(MockTextMapPropagator.TRACE_ID_KEY, headers)
self.assertEqual(
str(span.get_span_context().trace_id),
headers[MockTextMapPropagator.TRACE_ID_KEY],
)
self.assertIn(MockTextMapPropagator.SPAN_ID_KEY, headers)
self.assertEqual(
str(span.get_span_context().span_id),
headers[MockTextMapPropagator.SPAN_ID_KEY],
)
finally:
set_global_textmap(previous_propagator)
def test_span_callback(self):
RequestsInstrumentor().uninstrument()
def span_callback(span, result: requests.Response):
span.set_attribute(
"http.response.body", result.content.decode("utf-8")
)
RequestsInstrumentor().instrument(
tracer_provider=self.tracer_provider, span_callback=span_callback,
)
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span()
self.assertEqual(
span.attributes,
{
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_URL: self.URL,
SpanAttributes.HTTP_STATUS_CODE: 200,
"http.response.body": "Hello!",
},
)
def test_custom_tracer_provider(self):
resource = resources.Resource.create({})
result = self.create_tracer_provider(resource=resource)
tracer_provider, exporter = result
RequestsInstrumentor().uninstrument()
RequestsInstrumentor().instrument(tracer_provider=tracer_provider)
result = self.perform_request(self.URL)
self.assertEqual(result.text, "Hello!")
span = self.assert_span(exporter=exporter)
self.assertIs(span.resource, resource)
@mock.patch(
"requests.adapters.HTTPAdapter.send",
side_effect=requests.RequestException,
)
def test_requests_exception_without_response(self, *_, **__):
with self.assertRaises(requests.RequestException):
self.perform_request(self.URL)
span = self.assert_span()
self.assertEqual(
span.attributes,
{
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_URL: self.URL,
},
)
self.assertEqual(span.status.status_code, StatusCode.ERROR)
mocked_response = requests.Response()
mocked_response.status_code = 500
mocked_response.reason = "Internal Server Error"
@mock.patch(
"requests.adapters.HTTPAdapter.send",
side_effect=InvalidResponseObjectException,
)
def test_requests_exception_without_proper_response_type(self, *_, **__):
with self.assertRaises(InvalidResponseObjectException):
self.perform_request(self.URL)
span = self.assert_span()
self.assertEqual(
span.attributes,
{
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_URL: self.URL,
},
)
self.assertEqual(span.status.status_code, StatusCode.ERROR)
mocked_response = requests.Response()
mocked_response.status_code = 500
mocked_response.reason = "Internal Server Error"
@mock.patch(
"requests.adapters.HTTPAdapter.send",
side_effect=requests.RequestException(response=mocked_response),
)
def test_requests_exception_with_response(self, *_, **__):
with self.assertRaises(requests.RequestException):
self.perform_request(self.URL)
span = self.assert_span()
self.assertEqual(
span.attributes,
{
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_URL: self.URL,
SpanAttributes.HTTP_STATUS_CODE: 500,
},
)
self.assertEqual(span.status.status_code, StatusCode.ERROR)
@mock.patch("requests.adapters.HTTPAdapter.send", side_effect=Exception)
def test_requests_basic_exception(self, *_, **__):
with self.assertRaises(Exception):
self.perform_request(self.URL)
span = self.assert_span()
self.assertEqual(span.status.status_code, StatusCode.ERROR)
@mock.patch(
"requests.adapters.HTTPAdapter.send", side_effect=requests.Timeout
)
def test_requests_timeout_exception(self, *_, **__):
with self.assertRaises(Exception):
self.perform_request(self.URL)
span = self.assert_span()
self.assertEqual(span.status.status_code, StatusCode.ERROR)
class TestRequestsIntegration(RequestsIntegrationTestBase, TestBase):
@staticmethod
def perform_request(url: str, session: requests.Session = None):
if session is None:
return requests.get(url)
return session.get(url)
def test_invalid_url(self):
url = "http://[::1/nope"
with self.assertRaises(ValueError):
requests.post(url)
span = self.assert_span()
self.assertEqual(span.name, "HTTP POST")
self.assertEqual(
span.attributes,
{SpanAttributes.HTTP_METHOD: "POST", SpanAttributes.HTTP_URL: url},
)
self.assertEqual(span.status.status_code, StatusCode.ERROR)
def test_credential_removal(self):
new_url = "http://username:password@httpbin.org/status/200"
self.perform_request(new_url)
span = self.assert_span()
self.assertEqual(span.attributes[SpanAttributes.HTTP_URL], self.URL)
def test_if_headers_equals_none(self):
result = requests.get(self.URL, headers=None)
self.assertEqual(result.text, "Hello!")
self.assert_span()
class TestRequestsIntegrationPreparedRequest(
RequestsIntegrationTestBase, TestBase
):
@staticmethod
def perform_request(url: str, session: requests.Session = None):
if session is None:
session = requests.Session()
request = requests.Request("GET", url)
prepared_request = session.prepare_request(request)
return session.send(prepared_request)