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test_asgi_middleware.py
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# 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.
# pylint: disable=too-many-lines
import sys
import time
import unittest
from timeit import default_timer
from unittest import mock
import opentelemetry.instrumentation.asgi as otel_asgi
from opentelemetry import trace as trace_api
from opentelemetry.instrumentation._semconv import (
OTEL_SEMCONV_STABILITY_OPT_IN,
_OpenTelemetrySemanticConventionStability,
_server_active_requests_count_attrs_new,
_server_active_requests_count_attrs_old,
_server_duration_attrs_new,
_server_duration_attrs_old,
_StabilityMode,
)
from opentelemetry.instrumentation.propagators import (
TraceResponsePropagator,
get_global_response_propagator,
set_global_response_propagator,
)
from opentelemetry.sdk import resources
from opentelemetry.sdk.metrics.export import (
HistogramDataPoint,
NumberDataPoint,
)
from opentelemetry.semconv.attributes.client_attributes import (
CLIENT_ADDRESS,
CLIENT_PORT,
)
from opentelemetry.semconv.attributes.http_attributes import (
HTTP_REQUEST_METHOD,
HTTP_RESPONSE_STATUS_CODE,
)
from opentelemetry.semconv.attributes.network_attributes import (
NETWORK_PROTOCOL_VERSION,
)
from opentelemetry.semconv.attributes.server_attributes import (
SERVER_ADDRESS,
SERVER_PORT,
)
from opentelemetry.semconv.attributes.url_attributes import (
URL_PATH,
URL_QUERY,
URL_SCHEME,
)
from opentelemetry.semconv.attributes.user_agent_attributes import (
USER_AGENT_ORIGINAL,
)
from opentelemetry.semconv.trace import SpanAttributes
from opentelemetry.test.asgitestutil import (
AsyncAsgiTestBase,
setup_testing_defaults,
)
from opentelemetry.test.test_base import TestBase
from opentelemetry.trace import SpanKind, format_span_id, format_trace_id
_expected_metric_names_old = [
"http.server.active_requests",
"http.server.duration",
"http.server.response.size",
"http.server.request.size",
]
_expected_metric_names_new = [
"http.server.active_requests",
"http.server.request.duration",
"http.server.response.body.size",
"http.server.request.body.size",
]
_expected_metric_names_both = _expected_metric_names_old
_expected_metric_names_both.extend(_expected_metric_names_new)
_recommended_attrs_old = {
"http.server.active_requests": _server_active_requests_count_attrs_old,
"http.server.duration": _server_duration_attrs_old,
"http.server.response.size": _server_duration_attrs_old,
"http.server.request.size": _server_duration_attrs_old,
}
_recommended_attrs_new = {
"http.server.active_requests": _server_active_requests_count_attrs_new,
"http.server.request.duration": _server_duration_attrs_new,
"http.server.response.body.size": _server_duration_attrs_new,
"http.server.request.body.size": _server_duration_attrs_new,
}
_recommended_attrs_both = _recommended_attrs_old.copy()
_recommended_attrs_both.update(_recommended_attrs_new)
_recommended_attrs_both["http.server.active_requests"].extend(
_server_active_requests_count_attrs_old
)
_SIMULATED_BACKGROUND_TASK_EXECUTION_TIME_S = 0.01
async def http_app(scope, receive, send):
message = await receive()
scope["headers"] = [(b"content-length", b"128")]
assert scope["type"] == "http"
if message.get("type") == "http.request":
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
],
}
)
await send({"type": "http.response.body", "body": b"*"})
async def websocket_app(scope, receive, send):
assert scope["type"] == "websocket"
while True:
message = await receive()
if message.get("type") == "websocket.connect":
await send({"type": "websocket.accept"})
if message.get("type") == "websocket.receive":
if message.get("text") == "ping":
await send({"type": "websocket.send", "text": "pong"})
if message.get("type") == "websocket.disconnect":
break
async def simple_asgi(scope, receive, send):
assert isinstance(scope, dict)
if scope["type"] == "http":
await http_app(scope, receive, send)
elif scope["type"] == "websocket":
await websocket_app(scope, receive, send)
async def long_response_asgi(scope, receive, send):
assert isinstance(scope, dict)
assert scope["type"] == "http"
message = await receive()
scope["headers"] = [(b"content-length", b"128")]
assert scope["type"] == "http"
if message.get("type") == "http.request":
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
],
}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": True}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": True}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": True}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": False}
)
async def background_execution_asgi(scope, receive, send):
assert isinstance(scope, dict)
assert scope["type"] == "http"
message = await receive()
scope["headers"] = [(b"content-length", b"128")]
assert scope["type"] == "http"
if message.get("type") == "http.request":
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
],
}
)
await send(
{
"type": "http.response.body",
"body": b"*",
}
)
time.sleep(_SIMULATED_BACKGROUND_TASK_EXECUTION_TIME_S)
async def background_execution_trailers_asgi(scope, receive, send):
assert isinstance(scope, dict)
assert scope["type"] == "http"
message = await receive()
scope["headers"] = [(b"content-length", b"128")]
assert scope["type"] == "http"
if message.get("type") == "http.request":
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
],
"trailers": True,
}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": True}
)
await send(
{"type": "http.response.body", "body": b"*", "more_body": False}
)
await send(
{
"type": "http.response.trailers",
"headers": [
[b"trailer", b"test-trailer"],
],
"more_trailers": True,
}
)
await send(
{
"type": "http.response.trailers",
"headers": [
[b"trailer", b"second-test-trailer"],
],
"more_trailers": False,
}
)
time.sleep(_SIMULATED_BACKGROUND_TASK_EXECUTION_TIME_S)
async def error_asgi(scope, receive, send):
assert isinstance(scope, dict)
assert scope["type"] == "http"
message = await receive()
scope["headers"] = [(b"content-length", b"128")]
if message.get("type") == "http.request":
try:
raise ValueError
except ValueError:
scope["hack_exc_info"] = sys.exc_info()
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
],
}
)
await send({"type": "http.response.body", "body": b"*"})
# pylint: disable=too-many-public-methods
class TestAsgiApplication(AsyncAsgiTestBase):
def setUp(self):
super().setUp()
test_name = ""
if hasattr(self, "_testMethodName"):
test_name = self._testMethodName
sem_conv_mode = "default"
if "new_semconv" in test_name:
sem_conv_mode = "http"
elif "both_semconv" in test_name:
sem_conv_mode = "http/dup"
self.env_patch = mock.patch.dict(
"os.environ",
{
OTEL_SEMCONV_STABILITY_OPT_IN: sem_conv_mode,
},
)
_OpenTelemetrySemanticConventionStability._initialized = False
self.env_patch.start()
# pylint: disable=too-many-locals
def validate_outputs(
self,
outputs,
error=None,
modifiers=None,
old_sem_conv=True,
new_sem_conv=False,
):
# Ensure modifiers is a list
modifiers = modifiers or []
# Check for expected outputs
response_start = outputs[0]
response_final_body = [
output
for output in outputs
if output["type"] == "http.response.body"
][-1]
self.assertEqual(response_start["type"], "http.response.start")
self.assertEqual(response_final_body["type"], "http.response.body")
self.assertEqual(response_final_body.get("more_body", False), False)
# Check http response body
self.assertEqual(response_final_body["body"], b"*")
# Check http response start
self.assertEqual(response_start["status"], 200)
self.assertEqual(
response_start["headers"],
[[b"Content-Type", b"text/plain"], [b"content-length", b"1024"]],
)
exc_info = self.scope.get("hack_exc_info")
if error:
self.assertIs(exc_info[0], error)
self.assertIsInstance(exc_info[1], error)
self.assertIsNotNone(exc_info[2])
else:
self.assertIsNone(exc_info)
# Check spans
span_list = self.memory_exporter.get_finished_spans()
expected_old = [
{
"name": "GET / http receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.request"},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {
SpanAttributes.HTTP_STATUS_CODE: 200,
"asgi.event.type": "http.response.start",
},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.body"},
},
{
"name": "GET /",
"kind": trace_api.SpanKind.SERVER,
"attributes": {
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_SCHEME: "http",
SpanAttributes.NET_HOST_PORT: 80,
SpanAttributes.HTTP_HOST: "127.0.0.1",
SpanAttributes.HTTP_FLAVOR: "1.0",
SpanAttributes.HTTP_TARGET: "/",
SpanAttributes.HTTP_URL: "http://127.0.0.1/",
SpanAttributes.NET_PEER_IP: "127.0.0.1",
SpanAttributes.NET_PEER_PORT: 32767,
SpanAttributes.HTTP_STATUS_CODE: 200,
},
},
]
expected_new = [
{
"name": "GET / http receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.request"},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {
HTTP_RESPONSE_STATUS_CODE: 200,
"asgi.event.type": "http.response.start",
},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.body"},
},
{
"name": "GET /",
"kind": trace_api.SpanKind.SERVER,
"attributes": {
HTTP_REQUEST_METHOD: "GET",
URL_SCHEME: "http",
SERVER_ADDRESS: "127.0.0.1",
SERVER_PORT: 80,
NETWORK_PROTOCOL_VERSION: "1.0",
URL_PATH: "/",
CLIENT_ADDRESS: "127.0.0.1",
CLIENT_PORT: 32767,
HTTP_RESPONSE_STATUS_CODE: 200,
},
},
]
expected_both = [
{
"name": "GET / http receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.request"},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {
SpanAttributes.HTTP_STATUS_CODE: 200,
HTTP_RESPONSE_STATUS_CODE: 200,
"asgi.event.type": "http.response.start",
},
},
{
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.body"},
},
{
"name": "GET /",
"kind": trace_api.SpanKind.SERVER,
"attributes": {
HTTP_REQUEST_METHOD: "GET",
URL_SCHEME: "http",
SERVER_ADDRESS: "127.0.0.1",
SERVER_PORT: 80,
NETWORK_PROTOCOL_VERSION: "1.0",
URL_PATH: "/",
CLIENT_ADDRESS: "127.0.0.1",
CLIENT_PORT: 32767,
HTTP_RESPONSE_STATUS_CODE: 200,
SpanAttributes.HTTP_METHOD: "GET",
SpanAttributes.HTTP_SCHEME: "http",
SpanAttributes.NET_HOST_PORT: 80,
SpanAttributes.HTTP_HOST: "127.0.0.1",
SpanAttributes.HTTP_FLAVOR: "1.0",
SpanAttributes.HTTP_TARGET: "/",
SpanAttributes.HTTP_URL: "http://127.0.0.1/",
SpanAttributes.NET_PEER_IP: "127.0.0.1",
SpanAttributes.NET_PEER_PORT: 32767,
SpanAttributes.HTTP_STATUS_CODE: 200,
},
},
]
expected = expected_old
if new_sem_conv:
if old_sem_conv:
expected = expected_both
else:
expected = expected_new
# Run our expected modifiers
for modifier in modifiers:
expected = modifier(expected)
# Check that output matches
self.assertEqual(len(span_list), len(expected))
for span, expected in zip(span_list, expected):
self.assertEqual(span.name, expected["name"])
self.assertEqual(span.kind, expected["kind"])
self.assertDictEqual(dict(span.attributes), expected["attributes"])
self.assertEqual(
span.instrumentation_scope.name,
"opentelemetry.instrumentation.asgi",
)
async def test_basic_asgi_call(self):
"""Test that spans are emitted as expected."""
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs)
async def test_basic_asgi_call_new_semconv(self):
"""Test that spans are emitted as expected."""
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, old_sem_conv=False, new_sem_conv=True)
async def test_basic_asgi_call_both_semconv(self):
"""Test that spans are emitted as expected."""
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, old_sem_conv=True, new_sem_conv=True)
async def test_asgi_not_recording(self):
mock_tracer = mock.Mock()
mock_span = mock.Mock()
mock_span.is_recording.return_value = False
mock_tracer.start_as_current_span.return_value = mock_span
mock_tracer.start_as_current_span.return_value.__enter__ = mock.Mock(
return_value=mock_span
)
mock_tracer.start_as_current_span.return_value.__exit__ = mock_span
with mock.patch("opentelemetry.trace.get_tracer") as tracer:
tracer.return_value = mock_tracer
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
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)
async def test_asgi_exc_info(self):
"""Test that exception information is emitted as expected."""
app = otel_asgi.OpenTelemetryMiddleware(error_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, error=ValueError)
async def test_long_response(self):
"""Test that the server span is ended on the final response body message.
If the server span is ended early then this test will fail due
to discrepancies in the expected list of spans and the emitted list of spans.
"""
app = otel_asgi.OpenTelemetryMiddleware(long_response_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
def add_more_body_spans(expected: list):
more_body_span = {
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.body"},
}
extra_spans = [more_body_span] * 3
expected[2:2] = extra_spans
return expected
self.validate_outputs(outputs, modifiers=[add_more_body_spans])
async def test_background_execution(self):
"""Test that the server span is ended BEFORE the background task is finished."""
app = otel_asgi.OpenTelemetryMiddleware(background_execution_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs)
span_list = self.memory_exporter.get_finished_spans()
server_span = span_list[-1]
assert server_span.kind == SpanKind.SERVER
span_duration_nanos = server_span.end_time - server_span.start_time
self.assertLessEqual(
span_duration_nanos,
_SIMULATED_BACKGROUND_TASK_EXECUTION_TIME_S * 10**9,
)
async def test_exclude_internal_spans(self):
"""Test that internal spans are excluded from the emitted spans when
the `exclude_receive_span` or `exclude_send_span` attributes are set.
"""
cases = [
(["receive", "send"], ["GET / http receive", "GET / http send"]),
(["send"], ["GET / http send"]),
(["receive"], ["GET / http receive"]),
([], []),
]
for exclude_spans, excluded_spans in cases:
self.memory_exporter.clear()
app = otel_asgi.OpenTelemetryMiddleware(
simple_asgi, exclude_spans=exclude_spans
)
self.seed_app(app)
await self.send_default_request()
await self.get_all_output()
span_list = self.memory_exporter.get_finished_spans()
self.assertTrue(span_list)
for span in span_list:
for excluded_span in excluded_spans:
self.assertNotEqual(span.name, excluded_span)
async def test_trailers(self):
"""Test that trailers are emitted as expected and that the server span is ended
BEFORE the background task is finished."""
app = otel_asgi.OpenTelemetryMiddleware(
background_execution_trailers_asgi
)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
def add_body_and_trailer_span(expected: list):
body_span = {
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.body"},
}
trailer_span = {
"name": "GET / http send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "http.response.trailers"},
}
expected[2:2] = [body_span]
expected[4:4] = [trailer_span] * 2
return expected
self.validate_outputs(outputs, modifiers=[add_body_and_trailer_span])
span_list = self.memory_exporter.get_finished_spans()
server_span = span_list[-1]
assert server_span.kind == SpanKind.SERVER
span_duration_nanos = server_span.end_time - server_span.start_time
self.assertLessEqual(
span_duration_nanos,
_SIMULATED_BACKGROUND_TASK_EXECUTION_TIME_S * 10**9,
)
async def test_override_span_name(self):
"""Test that default span_names can be overwritten by our callback function."""
span_name = "Dymaxion"
def get_predefined_span_details(_):
return span_name, {}
def update_expected_span_name(expected):
for entry in expected:
if entry["kind"] == trace_api.SpanKind.SERVER:
entry["name"] = span_name
else:
entry["name"] = " ".join(
[span_name] + entry["name"].split(" ")[2:]
)
return expected
app = otel_asgi.OpenTelemetryMiddleware(
simple_asgi, default_span_details=get_predefined_span_details
)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, modifiers=[update_expected_span_name])
async def test_custom_tracer_provider_otel_asgi(self):
resource = resources.Resource.create({"service-test-key": "value"})
result = TestBase.create_tracer_provider(resource=resource)
tracer_provider, exporter = result
app = otel_asgi.OpenTelemetryMiddleware(
simple_asgi, tracer_provider=tracer_provider
)
self.seed_app(app)
await self.send_default_request()
span_list = exporter.get_finished_spans()
for span in span_list:
self.assertEqual(
span.resource.attributes["service-test-key"], "value"
)
async def test_no_op_tracer_provider_otel_asgi(self):
app = otel_asgi.OpenTelemetryMiddleware(
simple_asgi, tracer_provider=trace_api.NoOpTracerProvider()
)
self.seed_app(app)
await self.send_default_request()
response_start, response_body, *_ = await self.get_all_output()
self.assertEqual(response_body["body"], b"*")
self.assertEqual(response_start["status"], 200)
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 0)
async def test_behavior_with_scope_server_as_none(self):
"""Test that middleware is ok when server is none in scope."""
def update_expected_server(expected):
expected[3]["attributes"].update(
{
SpanAttributes.HTTP_HOST: "0.0.0.0",
SpanAttributes.NET_HOST_PORT: 80,
SpanAttributes.HTTP_URL: "http://0.0.0.0/",
}
)
return expected
self.scope["server"] = None
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, modifiers=[update_expected_server])
async def test_behavior_with_scope_server_as_none_new_semconv(self):
"""Test that middleware is ok when server is none in scope."""
def update_expected_server(expected):
expected[3]["attributes"].update(
{
SERVER_ADDRESS: "0.0.0.0",
SERVER_PORT: 80,
}
)
return expected
self.scope["server"] = None
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(
outputs,
modifiers=[update_expected_server],
old_sem_conv=False,
new_sem_conv=True,
)
async def test_behavior_with_scope_server_as_none_both_semconv(self):
"""Test that middleware is ok when server is none in scope."""
def update_expected_server(expected):
expected[3]["attributes"].update(
{
SpanAttributes.HTTP_HOST: "0.0.0.0",
SpanAttributes.NET_HOST_PORT: 80,
SpanAttributes.HTTP_URL: "http://0.0.0.0/",
SERVER_ADDRESS: "0.0.0.0",
SERVER_PORT: 80,
}
)
return expected
self.scope["server"] = None
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(
outputs,
modifiers=[update_expected_server],
old_sem_conv=True,
new_sem_conv=True,
)
async def test_host_header(self):
"""Test that host header is converted to http.server_name."""
hostname = b"server_name_1"
def update_expected_server(expected):
expected[3]["attributes"].update(
{SpanAttributes.HTTP_SERVER_NAME: hostname.decode("utf8")}
)
return expected
self.scope["headers"].append([b"host", hostname])
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, modifiers=[update_expected_server])
async def test_host_header_both_semconv(self):
"""Test that host header is converted to http.server_name."""
hostname = b"server_name_1"
def update_expected_server(expected):
expected[3]["attributes"].update(
{SpanAttributes.HTTP_SERVER_NAME: hostname.decode("utf8")}
)
return expected
self.scope["headers"].append([b"host", hostname])
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(
outputs,
modifiers=[update_expected_server],
old_sem_conv=True,
new_sem_conv=True,
)
async def test_user_agent(self):
"""Test that host header is converted to http.server_name."""
user_agent = b"test-agent"
def update_expected_user_agent(expected):
expected[3]["attributes"].update(
{SpanAttributes.HTTP_USER_AGENT: user_agent.decode("utf8")}
)
return expected
self.scope["headers"].append([b"user-agent", user_agent])
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(outputs, modifiers=[update_expected_user_agent])
async def test_user_agent_new_semconv(self):
"""Test that host header is converted to http.server_name."""
user_agent = b"test-agent"
def update_expected_user_agent(expected):
expected[3]["attributes"].update(
{USER_AGENT_ORIGINAL: user_agent.decode("utf8")}
)
return expected
self.scope["headers"].append([b"user-agent", user_agent])
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(
outputs,
modifiers=[update_expected_user_agent],
old_sem_conv=False,
new_sem_conv=True,
)
async def test_user_agent_both_semconv(self):
"""Test that host header is converted to http.server_name."""
user_agent = b"test-agent"
def update_expected_user_agent(expected):
expected[3]["attributes"].update(
{
SpanAttributes.HTTP_USER_AGENT: user_agent.decode("utf8"),
USER_AGENT_ORIGINAL: user_agent.decode("utf8"),
}
)
return expected
self.scope["headers"].append([b"user-agent", user_agent])
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
outputs = await self.get_all_output()
self.validate_outputs(
outputs,
modifiers=[update_expected_user_agent],
old_sem_conv=True,
new_sem_conv=True,
)
async def test_traceresponse_header(self):
"""Test a traceresponse header is sent when a global propagator is set."""
orig = get_global_response_propagator()
set_global_response_propagator(TraceResponsePropagator())
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_default_request()
response_start, response_body, *_ = await self.get_all_output()
span = self.memory_exporter.get_finished_spans()[-1]
self.assertEqual(trace_api.SpanKind.SERVER, span.kind)
self.assertEqual(response_body["body"], b"*")
self.assertEqual(response_start["status"], 200)
trace_id = format_trace_id(span.get_span_context().trace_id)
span_id = format_span_id(span.get_span_context().span_id)
traceresponse = f"00-{trace_id}-{span_id}-01"
self.assertListEqual(
response_start["headers"],
[
[b"Content-Type", b"text/plain"],
[b"content-length", b"1024"],
[b"traceresponse", f"{traceresponse}".encode()],
[b"access-control-expose-headers", b"traceresponse"],
],
)
set_global_response_propagator(orig)
async def test_websocket(self):
self.scope = {
"method": "GET",
"type": "websocket",
"http_version": "1.1",
"scheme": "ws",
"path": "/",
"query_string": b"",
"headers": [],
"client": ("127.0.0.1", 32767),
"server": ("127.0.0.1", 80),
}
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_input({"type": "websocket.connect"})
await self.send_input({"type": "websocket.receive", "text": "ping"})
await self.send_input({"type": "websocket.disconnect"})
await self.get_all_output()
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 6)
expected = [
{
"name": "GET / websocket receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "websocket.connect"},
},
{
"name": "GET / websocket send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "websocket.accept"},
},
{
"name": "GET / websocket receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {
"asgi.event.type": "websocket.receive",
SpanAttributes.HTTP_STATUS_CODE: 200,
},
},
{
"name": "GET / websocket send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {
"asgi.event.type": "websocket.send",
SpanAttributes.HTTP_STATUS_CODE: 200,
},
},
{
"name": "GET / websocket receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "websocket.disconnect"},
},
{
"name": "GET /",
"kind": trace_api.SpanKind.SERVER,
"attributes": {
SpanAttributes.HTTP_SCHEME: self.scope["scheme"],
SpanAttributes.NET_HOST_PORT: self.scope["server"][1],
SpanAttributes.HTTP_HOST: self.scope["server"][0],
SpanAttributes.HTTP_FLAVOR: self.scope["http_version"],
SpanAttributes.HTTP_TARGET: self.scope["path"],
SpanAttributes.HTTP_URL: f"{self.scope['scheme']}://{self.scope['server'][0]}{self.scope['path']}",
SpanAttributes.NET_PEER_IP: self.scope["client"][0],
SpanAttributes.NET_PEER_PORT: self.scope["client"][1],
SpanAttributes.HTTP_STATUS_CODE: 200,
SpanAttributes.HTTP_METHOD: self.scope["method"],
},
},
]
for span, expected in zip(span_list, expected):
self.assertEqual(span.name, expected["name"])
self.assertEqual(span.kind, expected["kind"])
self.assertDictEqual(dict(span.attributes), expected["attributes"])
async def test_websocket_new_semconv(self):
self.scope = {
"method": "GET",
"type": "websocket",
"http_version": "1.1",
"scheme": "ws",
"path": "/",
"query_string": b"",
"headers": [],
"client": ("127.0.0.1", 32767),
"server": ("127.0.0.1", 80),
}
app = otel_asgi.OpenTelemetryMiddleware(simple_asgi)
self.seed_app(app)
await self.send_input({"type": "websocket.connect"})
await self.send_input({"type": "websocket.receive", "text": "ping"})
await self.send_input({"type": "websocket.disconnect"})
await self.get_all_output()
span_list = self.memory_exporter.get_finished_spans()
self.assertEqual(len(span_list), 6)
expected = [
{
"name": "GET / websocket receive",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "websocket.connect"},
},
{
"name": "GET / websocket send",
"kind": trace_api.SpanKind.INTERNAL,
"attributes": {"asgi.event.type": "websocket.accept"},
},
{