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https://github.com/open-telemetry/opentelemetry-python-contrib.git
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357 lines
12 KiB
Python
357 lines
12 KiB
Python
# Copyright The OpenTelemetry Authors
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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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from sys import modules
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from unittest.mock import Mock, patch
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from django import VERSION
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from django.conf import settings
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from django.conf.urls import url
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from django.http import HttpRequest, HttpResponse
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from django.test import Client
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from django.test.utils import setup_test_environment, teardown_test_environment
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from opentelemetry.instrumentation.django import (
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DjangoInstrumentor,
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_DjangoMiddleware,
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)
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from opentelemetry.instrumentation.propagators import (
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TraceResponsePropagator,
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set_global_response_propagator,
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)
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from opentelemetry.sdk.trace import Span
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from opentelemetry.semconv.trace import SpanAttributes
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from opentelemetry.test.test_base import TestBase
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from opentelemetry.test.wsgitestutil import WsgiTestBase
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from opentelemetry.trace import (
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SpanKind,
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StatusCode,
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format_span_id,
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format_trace_id,
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)
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from opentelemetry.util.http import get_excluded_urls, get_traced_request_attrs
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# pylint: disable=import-error
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from .views import (
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error,
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excluded,
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excluded_noarg,
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excluded_noarg2,
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route_span_name,
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traced,
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traced_template,
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)
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DJANGO_2_2 = VERSION >= (2, 2)
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urlpatterns = [
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url(r"^traced/", traced),
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url(r"^route/(?P<year>[0-9]{4})/template/$", traced_template),
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url(r"^error/", error),
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url(r"^excluded_arg/", excluded),
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url(r"^excluded_noarg/", excluded_noarg),
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url(r"^excluded_noarg2/", excluded_noarg2),
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url(r"^span_name/([0-9]{4})/$", route_span_name),
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]
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_django_instrumentor = DjangoInstrumentor()
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class TestMiddleware(TestBase, WsgiTestBase):
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@classmethod
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def setUpClass(cls):
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super().setUpClass()
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settings.configure(ROOT_URLCONF=modules[__name__])
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def setUp(self):
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super().setUp()
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setup_test_environment()
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_django_instrumentor.instrument()
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self.env_patch = patch.dict(
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"os.environ",
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{
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"OTEL_PYTHON_DJANGO_EXCLUDED_URLS": "http://testserver/excluded_arg/123,excluded_noarg",
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"OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS": "path_info,content_type,non_existing_variable",
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},
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)
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self.env_patch.start()
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self.exclude_patch = patch(
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"opentelemetry.instrumentation.django.middleware._DjangoMiddleware._excluded_urls",
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get_excluded_urls("DJANGO"),
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)
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self.traced_patch = patch(
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"opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
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get_traced_request_attrs("DJANGO"),
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)
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self.exclude_patch.start()
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self.traced_patch.start()
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def tearDown(self):
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super().tearDown()
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self.env_patch.stop()
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self.exclude_patch.stop()
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self.traced_patch.stop()
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teardown_test_environment()
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_django_instrumentor.uninstrument()
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def test_templated_route_get(self):
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Client().get("/route/2020/template/")
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spans = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(spans), 1)
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span = spans[0]
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self.assertEqual(
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span.name,
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"^route/(?P<year>[0-9]{4})/template/$"
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if DJANGO_2_2
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else "tests.views.traced",
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)
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self.assertEqual(span.kind, SpanKind.SERVER)
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self.assertEqual(span.status.status_code, StatusCode.UNSET)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_METHOD], "GET")
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_URL],
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"http://testserver/route/2020/template/",
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)
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_ROUTE],
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"^route/(?P<year>[0-9]{4})/template/$",
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)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_SCHEME], "http")
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self.assertEqual(span.attributes[SpanAttributes.HTTP_STATUS_CODE], 200)
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def test_traced_get(self):
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Client().get("/traced/")
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spans = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(spans), 1)
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span = spans[0]
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self.assertEqual(
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span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced"
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)
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self.assertEqual(span.kind, SpanKind.SERVER)
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self.assertEqual(span.status.status_code, StatusCode.UNSET)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_METHOD], "GET")
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_URL],
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"http://testserver/traced/",
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)
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_ROUTE], "^traced/"
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)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_SCHEME], "http")
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self.assertEqual(span.attributes[SpanAttributes.HTTP_STATUS_CODE], 200)
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def test_not_recording(self):
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mock_tracer = Mock()
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mock_span = Mock()
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mock_span.is_recording.return_value = False
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mock_tracer.start_span.return_value = mock_span
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with patch("opentelemetry.trace.get_tracer") as tracer:
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tracer.return_value = mock_tracer
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Client().get("/traced/")
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self.assertFalse(mock_span.is_recording())
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self.assertTrue(mock_span.is_recording.called)
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self.assertFalse(mock_span.set_attribute.called)
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self.assertFalse(mock_span.set_status.called)
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def test_traced_post(self):
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Client().post("/traced/")
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spans = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(spans), 1)
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span = spans[0]
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self.assertEqual(
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span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced"
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)
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self.assertEqual(span.kind, SpanKind.SERVER)
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self.assertEqual(span.status.status_code, StatusCode.UNSET)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_METHOD], "POST")
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_URL],
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"http://testserver/traced/",
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)
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_ROUTE], "^traced/"
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)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_SCHEME], "http")
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self.assertEqual(span.attributes[SpanAttributes.HTTP_STATUS_CODE], 200)
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def test_error(self):
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with self.assertRaises(ValueError):
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Client().get("/error/")
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spans = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(spans), 1)
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span = spans[0]
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self.assertEqual(
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span.name, "^error/" if DJANGO_2_2 else "tests.views.error"
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)
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self.assertEqual(span.kind, SpanKind.SERVER)
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self.assertEqual(span.status.status_code, StatusCode.ERROR)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_METHOD], "GET")
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self.assertEqual(
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span.attributes[SpanAttributes.HTTP_URL],
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"http://testserver/error/",
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)
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self.assertEqual(span.attributes[SpanAttributes.HTTP_ROUTE], "^error/")
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self.assertEqual(span.attributes[SpanAttributes.HTTP_SCHEME], "http")
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self.assertEqual(span.attributes[SpanAttributes.HTTP_STATUS_CODE], 500)
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self.assertEqual(len(span.events), 1)
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event = span.events[0]
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self.assertEqual(event.name, "exception")
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self.assertEqual(
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event.attributes[SpanAttributes.EXCEPTION_TYPE], "ValueError"
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)
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self.assertEqual(
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event.attributes[SpanAttributes.EXCEPTION_MESSAGE], "error"
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)
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def test_exclude_lists(self):
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client = Client()
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client.get("/excluded_arg/123")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 0)
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client.get("/excluded_arg/125")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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client.get("/excluded_noarg/")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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client.get("/excluded_noarg2/")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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def test_span_name(self):
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# test no query_string
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Client().get("/span_name/1234/")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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span = span_list[0]
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self.assertEqual(
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span.name,
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"^span_name/([0-9]{4})/$"
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if DJANGO_2_2
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else "tests.views.route_span_name",
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)
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def test_span_name_for_query_string(self):
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"""
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request not have query string
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"""
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Client().get("/span_name/1234/?query=test")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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span = span_list[0]
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self.assertEqual(
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span.name,
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"^span_name/([0-9]{4})/$"
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if DJANGO_2_2
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else "tests.views.route_span_name",
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)
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def test_span_name_404(self):
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Client().get("/span_name/1234567890/")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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span = span_list[0]
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self.assertEqual(span.name, "HTTP GET")
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def test_traced_request_attrs(self):
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Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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span = span_list[0]
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self.assertEqual(span.attributes["path_info"], "/span_name/1234/")
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self.assertEqual(span.attributes["content_type"], "test/ct")
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self.assertNotIn("non_existing_variable", span.attributes)
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def test_hooks(self):
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request_hook_args = ()
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response_hook_args = ()
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def request_hook(span, request):
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nonlocal request_hook_args
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request_hook_args = (span, request)
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def response_hook(span, request, response):
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nonlocal response_hook_args
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response_hook_args = (span, request, response)
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response["hook-header"] = "set by hook"
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_DjangoMiddleware._otel_request_hook = request_hook
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_DjangoMiddleware._otel_response_hook = response_hook
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response = Client().get("/span_name/1234/")
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_DjangoMiddleware._otel_request_hook = (
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_DjangoMiddleware._otel_response_hook
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) = None
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self.assertEqual(response["hook-header"], "set by hook")
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span_list = self.memory_exporter.get_finished_spans()
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self.assertEqual(len(span_list), 1)
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span = span_list[0]
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self.assertEqual(span.attributes["path_info"], "/span_name/1234/")
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self.assertEqual(len(request_hook_args), 2)
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self.assertEqual(request_hook_args[0].name, span.name)
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self.assertIsInstance(request_hook_args[0], Span)
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self.assertIsInstance(request_hook_args[1], HttpRequest)
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self.assertEqual(len(response_hook_args), 3)
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self.assertEqual(request_hook_args[0], response_hook_args[0])
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self.assertIsInstance(response_hook_args[1], HttpRequest)
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self.assertIsInstance(response_hook_args[2], HttpResponse)
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self.assertEqual(response_hook_args[2], response)
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def test_trace_response_headers(self):
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response = Client().get("/span_name/1234/")
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self.assertNotIn("Server-Timing", response.headers)
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self.memory_exporter.clear()
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set_global_response_propagator(TraceResponsePropagator())
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response = Client().get("/span_name/1234/")
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span = self.memory_exporter.get_finished_spans()[0]
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self.assertIn("traceresponse", response.headers)
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self.assertEqual(
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response.headers["Access-Control-Expose-Headers"], "traceresponse",
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)
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self.assertEqual(
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response.headers["traceresponse"],
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"00-{0}-{1}-01".format(
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format_trace_id(span.get_span_context().trace_id),
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format_span_id(span.get_span_context().span_id),
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),
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)
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self.memory_exporter.clear()
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