[opentelemetry-util-genai] Add tests for tool invocation context property and explicit context

[lmolkova]

What does this change do?

Adds unit tests validating ToolInvocation.context, handler.tool(..., context=...), and handler.start_tool(..., context=...).

Why?

Ensures explicit parent context propagation and the active span context property are covered by unit tests, in preparation for codegen (#702).

[Copilot]

Copilot review overview

🟡 Changes recommended

Assertions should verify the exact invocation span and full trace context, not only recording status and span ID.

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Review effort: Lite
Findings: 2

Open (2)

• Assert extracted recording span belongs to this invocation · New
• Assert propagated child retains the explicit trace ID · New

What changed in this PR

Adds unit coverage for ToolInvocation.context and explicit parent-context propagation, supporting the utility codegen work in #702.

Changes:

• Tests the invocation context property.
• Tests explicit context for tool() and start_tool().

File	Description
util/​opentelemetry-util-genai/​tests/​test_toolcall.py	Adds context and parent-span propagation tests.

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Pull request dashboard status

Merged · refreshed 2026-09-20 05:05 UTC

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