test(openai): Replace mocks with httpx types for streaming Responses

[alexander-alderman-webb]

Description

Replace mocks with httpx types to avoid test failures when library internals change.

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 ✨

Langchain

• Set gen_ai.operation.name and gen_ai.pipeline.name on LLM spans by ericapisani in #5849
• Broaden AI provider detection beyond OpenAI and Anthropic by ericapisani in #5707
• Update LLM span operation to gen_ai.generate_text by ericapisani in #5796

Bug Fixes 🐛

Ci

• Use gh CLI to convert PR to draft by stephanie-anderson in #5874
• Use GitHub App token for draft PR enforcement by stephanie-anderson in #5871

Openai

• Always set gen_ai.response.streaming for Responses by alexander-alderman-webb in #5697
• Simplify Responses input handling by alexander-alderman-webb in #5695
• Use max_output_tokens for Responses API by alexander-alderman-webb in #5693
• Always set gen_ai.response.streaming for Completions by alexander-alderman-webb in #5692
• Simplify Completions input handling by alexander-alderman-webb in #5690
• Simplify embeddings input handling by alexander-alderman-webb in #5688

Other

• (google-genai) Guard response extraction by alexander-alderman-webb in #5869

Internal Changes 🔧

Langchain

• Add text completion test by alexander-alderman-webb in #5740
• Add tool execution test by alexander-alderman-webb in #5739
• Add basic agent test with Responses call by alexander-alderman-webb in #5726
• Replace mocks with httpx types by alexander-alderman-webb in #5724
• Consolidate span origin assertion by alexander-alderman-webb in #5723
• Consolidate available tools assertion by alexander-alderman-webb in #5721

Openai

• Replace mocks with httpx types for streaming Responses by alexander-alderman-webb in #5882

• Move input handling code into API-specific functions by alexander-alderman-webb in #5687

Other

• (asyncpg) Normalize query whitespace in integration by ericapisani in #5855
• Exclude compromised litellm versions by alexander-alderman-webb in #5876
• Reactivate litellm tests by alexander-alderman-webb in #5853
• Add note to coordinate with assignee before PR submission by sentrivana in #5868
• Temporarily stop running litellm tests by alexander-alderman-webb in #5851

Other

• ci+docs: Add draft PR enforcement by stephanie-anderson in #5867

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[github-actions]

Codecov Results 📊

✅ 85 passed | ⏭️ 12 skipped | Total: 97 | Pass Rate: 87.63% | Execution Time: 26.28s

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 15181 uncovered lines.
✅ Project coverage is 26.48%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    26.48%    26.48%        —%
==========================================
  Files          189       189         —
  Lines        20648     20648         —
  Branches      6760      6760         —
==========================================
+ Hits          5467      5467         —
- Misses       15181     15181         —
- Partials       479       479         —

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Generated by Codecov Action

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Cursor Bugbot has reviewed your changes and found 2 potential issues.

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[ericapisani]

One cleanup thing, but otherwise LGTM