litellm/tests/otel_tests/test_otel.py
Yuneng Jiang e6f524f951
[Fix] Tests: Pick chat-completion OTEL trace by content, not recency
The /otel-spans endpoint returns process-wide spans and tags
most_recent_parent by max start_time. After tightening that route to
proxy_admin (sk-1234), the GET /otel-spans request itself emits auth
spans that beat the chat-completion spans on start_time, so
most_recent_parent now points at the request's own auth trace
(['postgres', 'postgres']) and the >=5-span assertion fails.

Pick the chat-completion trace by content: it is the only trace whose
span list is a superset of {postgres, redis, raw_gen_ai_request,
batch_write_to_db}. Verified locally end-to-end against
otel_test_config.yaml + OTEL_EXPORTER=in_memory: 3/3 runs green.
2026-05-04 20:35:09 -07:00

135 lines
4.1 KiB
Python

# What this tests ?
## Tests /chat/completions by generating a key and then making a chat completions request
import pytest
import asyncio
import aiohttp, openai
from openai import OpenAI, AsyncOpenAI
from typing import Optional, List, Union
from litellm._uuid import uuid
async def generate_key(
session,
models=[
"gpt-4",
"text-embedding-ada-002",
"dall-e-2",
"fake-openai-endpoint",
"mistral-embed",
],
):
url = "http://0.0.0.0:4000/key/generate"
headers = {"Authorization": "Bearer sk-1234", "Content-Type": "application/json"}
data = {
"models": models,
"duration": None,
}
async with session.post(url, headers=headers, json=data) as response:
status = response.status
response_text = await response.text()
print(response_text)
print()
if status != 200:
raise Exception(f"Request did not return a 200 status code: {status}")
return await response.json()
async def chat_completion(session, key, model: Union[str, List] = "gpt-4"):
url = "http://0.0.0.0:4000/chat/completions"
headers = {
"Authorization": f"Bearer {key}",
"Content-Type": "application/json",
}
data = {
"model": model,
"messages": [
{"role": "user", "content": f"Hello! {str(uuid.uuid4())}"},
],
}
async with session.post(url, headers=headers, json=data) as response:
status = response.status
response_text = await response.text()
print(response_text)
print()
if status != 200:
raise Exception(f"Request did not return a 200 status code: {status}")
return await response.json()
async def get_otel_spans(session, key):
url = "http://0.0.0.0:4000/otel-spans"
headers = {
"Authorization": f"Bearer {key}",
"Content-Type": "application/json",
}
async with session.get(url, headers=headers) as response:
status = response.status
response_text = await response.text()
print(response_text)
print()
if status != 200:
raise Exception(f"Request did not return a 200 status code: {status}")
return await response.json()
@pytest.mark.asyncio
async def test_chat_completion_check_otel_spans():
"""
- Create key
Make chat completion call
- Create user
make chat completion call
"""
async with aiohttp.ClientSession() as session:
key_gen = await generate_key(session=session)
key = key_gen["key"]
await chat_completion(session=session, key=key, model="fake-openai-endpoint")
await asyncio.sleep(3)
# /otel-spans requires proxy admin; use the master key.
otel_spans = await get_otel_spans(session=session, key="sk-1234")
print("otel_spans: ", otel_spans)
all_otel_spans = otel_spans["otel_spans"]
spans_grouped_by_parent = otel_spans["spans_grouped_by_parent"]
print("\n spans grouped by parent: ", spans_grouped_by_parent)
# The GET /otel-spans request itself produces auth spans that beat
# the chat-completion spans on start_time, so `most_recent_parent`
# points at the wrong trace. Pick the chat-completion trace by
# content: it's the one carrying the full set of expected markers.
chat_completion_markers = {
"postgres",
"redis",
"raw_gen_ai_request",
"batch_write_to_db",
}
parent_trace_spans = next(
spans
for spans in spans_grouped_by_parent.values()
if chat_completion_markers.issubset(spans)
)
print("Parent trace spans: ", parent_trace_spans)
# either 5 or 6 traces depending on how many redis calls were made
assert len(parent_trace_spans) >= 5
# 'postgres', 'redis', 'raw_gen_ai_request', 'litellm_request', 'Received Proxy Server Request' in the span
assert "postgres" in parent_trace_spans
assert "redis" in parent_trace_spans
assert "raw_gen_ai_request" in parent_trace_spans
assert "batch_write_to_db" in parent_trace_spans