Port Agent365 integration tests using real distro pipeline

[nikhilNava]

Summary

Port integration tests from the Agent365SDK repo into tests/a365/integration/ exercising the full distro pipeline via use_microsoft_opentelemetry().

Changes

Integration Tests (15 tests across 3 frameworks)

AgentFramework (tests/a365/integration/agentframework/)

• test_agentframework_trace_processor.py - basic trace + tool calls
• test_message_format.py - A365 versioned message format verification
• test_observability_pipeline.py - full pipeline with InvokeAgentScope

OpenAI Agents (tests/a365/integration/openai/)

• test_openai_trace_processor.py - basic trace, tool calls, invoke_agent span attributes
• test_message_format.py - simple chat + tool call message format

LangChain (tests/a365/integration/langchain/)

• test_message_format.py - simple chat + tool call message format
• test_observability_pipeline.py - full pipeline with InvokeAgentScope

Shared Test Infrastructure

• tests/a365/integration/conftest.py - session-scoped distro_exporter fixture using use_microsoft_opentelemetry and SpanCapturingExporter

Bug Fixes

• AF enable_sensitive_data preservation - _trace_instrumentor.py no longer overwrites enable_sensitive_data when AF SDK already instrumented
• LangChain span_utils shim - local _span_utils.py for missing opentelemetry.util.genai.span_utils

Workaround

• LangChain conftest uninstruments openai-v2 instrumentor to avoid KeyError on Azure deployment-based routing

Testing

• All 15 integration tests pass against real Azure OpenAI endpoints
• All 950 existing unit tests pass (no regressions)

[Copilot]

Pull request overview

Ports Agent365 integration coverage into this repository so tests exercise the real Microsoft OpenTelemetry distro pipeline via use_microsoft_opentelemetry().

Changes:

• Adds shared A365 integration fixtures and span-capturing exporter.
• Adds Azure OpenAI-backed integration tests for AgentFramework, OpenAI Agents, and LangChain.
• Updates AgentFramework sensitive-data handling and adds a LangChain GenAI span utility shim.

Reviewed changes

Copilot reviewed 17 out of 19 changed files in this pull request and generated 14 comments.

Show a summary per file

File	Description
src/microsoft/opentelemetry/_agent_framework/_trace_instrumentor.py	Adjusts AgentFramework enablement to preserve existing observability settings.
src/microsoft/opentelemetry/_genai/_langchain/_span_utils.py	Adds local GenAI span utility shim for LangChain tracing.
src/microsoft/opentelemetry/_genai/_langchain/_tracer.py	Switches LangChain tracer to use the local shim.
src/microsoft/opentelemetry/_genai/_langchain/_tracer_instrumentor.py	Adds debug logging when LangChain is unavailable.
src/microsoft/opentelemetry/_genai/_langchain/_utils.py	Adds prompt fallback extraction for LangChain LLM input messages.
tests/agent_framework/test_trace_instrumentor.py	Updates and extends AgentFramework instrumentor tests.
tests/a365/integration/conftest.py	Adds shared A365 integration fixtures and capturing exporter.
tests/a365/integration/__init__.py	Package marker for integration tests.
tests/a365/integration/agentframework/__init__.py	Adds package docstring.
tests/a365/integration/agentframework/test_agentframework_trace_processor.py	Adds AgentFramework trace processor integration tests.
tests/a365/integration/agentframework/test_message_format.py	Adds AgentFramework message-format integration tests.
tests/a365/integration/agentframework/test_observability_pipeline.py	Adds AgentFramework end-to-end pipeline integration tests.
tests/a365/integration/langchain/__init__.py	Adds license header.
tests/a365/integration/langchain/conftest.py	Adds LangChain-specific OpenAI v2 uninstrumentation workaround.
tests/a365/integration/langchain/test_message_format.py	Adds LangChain message-format integration tests.
tests/a365/integration/langchain/test_observability_pipeline.py	Adds LangChain end-to-end pipeline integration tests.
tests/a365/integration/openai/__init__.py	Adds OpenAI integration test package marker.
tests/a365/integration/openai/test_message_format.py	Adds OpenAI Agents message-format integration tests.
tests/a365/integration/openai/test_openai_trace_processor.py	Adds OpenAI Agents trace processor integration tests.

Comments suppressed due to low confidence (2)

tests/a365/integration/openai/test_openai_trace_processor.py:334

• The helper records how many LLM, agent, and tool spans were found but only asserts that some span exists. A regression that drops all tool or LLM spans would still pass this tool-call integration test.

        # Ensure we found the expected span types
        assert len(distro_exporter.spans) > 0, "No spans were captured"
        print(f"✓ Captured {len(distro_exporter.spans)} spans total")
        print(
            f"✓ Found {llm_spans_found} LLM spans, {agent_spans_found} agent spans, and {tool_spans_found} tool spans"
        )

tests/a365/integration/agentframework/test_agentframework_trace_processor.py:225

• The helper records how many LLM, agent, and tool spans were found but only asserts that some span exists. A regression that drops all tool or LLM spans would still pass this tool-call integration test.

        # Ensure we found the expected span types
        assert len(distro_exporter.spans) > 0, "No spans were captured"
        print(f"✓ Captured {len(distro_exporter.spans)} spans total")
        print(
            f"✓ Found {llm_spans_found} LLM spans, {agent_spans_found} agent spans, and {tool_spans_found} tool spans"
        )

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[rads-1996]

LGTM