test(anthropic): Stop mocking response iterator

[alexander-alderman-webb]

Description

Issues

Reminders

• Please add tests to validate your changes, and lint your code using tox -e linters.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

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New Features ✨

• (crons) Add owner field to MonitorConfig by julwhitney13 in #5610
• (pydantic-ai) Add tool description to execute_tool spans by ericapisani in #5596

Bug Fixes 🐛

• (celery) Propagate user-set headers by sentrivana in #5581
• (utils) Avoid double serialization of strings in safe_serialize by ericapisani in #5587

Documentation 📚

• (openai-agents) Remove inapplicable comment by alexander-alderman-webb in #5495
• Add AGENTS.md by sentrivana in #5579
• Add set_attribute example to changelog by sentrivana in #5578

Internal Changes 🔧

Openai Agents

• Do not fail on new tool fields by alexander-alderman-webb in #5625
• Stop expecting a specific function name by alexander-alderman-webb in #5623
• Set streaming header when library uses with_streaming_response() by alexander-alderman-webb in #5583
• Replace mocks with httpx for streamed responses by alexander-alderman-webb in #5580
• Replace mocks with httpx in non-MCP tool tests by alexander-alderman-webb in #5602
• Replace mocks with httpx in MCP tool tests by alexander-alderman-webb in #5605
• Replace mocks with httpx in handoff tests by alexander-alderman-webb in #5604
• Replace mocks with httpx in API error test by alexander-alderman-webb in #5601
• Replace mocks with httpx in non-error single-response tests by alexander-alderman-webb in #5600
• Remove test for unreachable state by alexander-alderman-webb in #5584
• Expect namespace tool field for new openai versions by alexander-alderman-webb in #5599

Other

• (anthropic) Stop mocking response iterator by alexander-alderman-webb in #5573

• (httpx) Resolve type checking failures by alexander-alderman-webb in #5626
• (pyramid) Support alpha suffixes in version parsing by alexander-alderman-webb in #5618
• Normalize dots in package names in populate_tox.py by alexander-alderman-webb in #5574
• Do not run actions on potel-base by sentrivana in #5614

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[github-actions]

Codecov Results 📊

✅ 13 passed | Total: 13 | Pass Rate: 100% | Execution Time: 8.36s

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 13949 uncovered lines.

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Generated by Codecov Action

[github-actions]

Missing pytest fixture 'server_side_event_chunks' will cause test failure

The test function test_streaming_create_message declares server_side_event_chunks as a fixture parameter, but this fixture is not defined anywhere in the codebase. The only definition of server_side_event_chunks is a plain generator function in tests/integrations/openai_agents/test_openai_agents.py, which is not a pytest fixture and is not accessible from the anthropic tests. This will cause pytest to raise a fixture 'server_side_event_chunks' not found error at test collection time.

Verification

Searched for 'server_side_event_chunks' definition across all files in tests/conftest.py, tests/integrations/conftest.py, and all *.py files. Found it only defined as a plain function (not a @pytest.fixture) in tests/integrations/openai_agents/test_openai_agents.py at line 1389. Verified the function is used as a parameter in test_streaming_create_message at line 224, which pytest interprets as a fixture request.

Also found at 1 additional location

• tests/integrations/anthropic/test_anthropic.py:1316-1316

Identified by Warden code-review · XQD-K8S