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86 lines
3.2 KiB
Python
86 lines
3.2 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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"""Telemetry test configuration using OpenTelemetry SDK exporters.
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This conftest provides in-memory telemetry collection for library_client mode only.
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Tests using these fixtures should skip in server mode since the in-memory collector
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cannot access spans from a separate server process.
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"""
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from typing import Any
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import opentelemetry.metrics as otel_metrics
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import opentelemetry.trace as otel_trace
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import pytest
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from opentelemetry import metrics, trace
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from opentelemetry.sdk.metrics import MeterProvider
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from opentelemetry.sdk.metrics.export import InMemoryMetricReader
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from opentelemetry.sdk.trace import ReadableSpan, TracerProvider
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from opentelemetry.sdk.trace.export import SimpleSpanProcessor
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from opentelemetry.sdk.trace.export.in_memory_span_exporter import InMemorySpanExporter
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import llama_stack.providers.inline.telemetry.meta_reference.telemetry as telemetry_module
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@pytest.fixture(scope="session")
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def _setup_test_telemetry():
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"""Session-scoped: Set up test telemetry providers before client initialization."""
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# Reset OpenTelemetry's internal locks to allow test fixtures to override providers
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if hasattr(otel_trace, "_TRACER_PROVIDER_SET_ONCE"):
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otel_trace._TRACER_PROVIDER_SET_ONCE._done = False # type: ignore
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if hasattr(otel_metrics, "_METER_PROVIDER_SET_ONCE"):
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otel_metrics._METER_PROVIDER_SET_ONCE._done = False # type: ignore
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# Create and set up providers before client initialization
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span_exporter = InMemorySpanExporter()
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tracer_provider = TracerProvider()
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tracer_provider.add_span_processor(SimpleSpanProcessor(span_exporter))
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trace.set_tracer_provider(tracer_provider)
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metric_reader = InMemoryMetricReader()
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meter_provider = MeterProvider(metric_readers=[metric_reader])
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metrics.set_meter_provider(meter_provider)
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# Set module-level providers so TelemetryAdapter uses them
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telemetry_module._TRACER_PROVIDER = tracer_provider
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yield tracer_provider, meter_provider, span_exporter, metric_reader
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# Cleanup
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telemetry_module._TRACER_PROVIDER = None
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tracer_provider.shutdown()
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meter_provider.shutdown()
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class TestCollector:
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def __init__(self, span_exp, metric_read):
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assert span_exp and metric_read
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self.span_exporter = span_exp
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self.metric_reader = metric_read
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def get_spans(self) -> tuple[ReadableSpan, ...]:
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return self.span_exporter.get_finished_spans()
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def get_metrics(self) -> Any | None:
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metrics = self.metric_reader.get_metrics_data()
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if metrics and metrics.resource_metrics:
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return metrics.resource_metrics[0].scope_metrics[0].metrics
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return None
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@pytest.fixture
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def mock_otlp_collector(_setup_test_telemetry):
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"""Function-scoped: Access to telemetry data for each test."""
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# Unpack the providers from the session fixture
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tracer_provider, meter_provider, span_exporter, metric_reader = _setup_test_telemetry
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collector = TestCollector(span_exporter, metric_reader)
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# Clear spans between tests
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span_exporter.clear()
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yield collector
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