core: Use parametrized test in test_correct_get_tracer_project

[cbornet]

No description provided.

[vercel]

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
langchain	⬜️ Ignored (Inspect)	Visit Preview		Jun 10, 2025 8:53am

[codspeed-hq]

CodSpeed Walltime Performance Report

Merging #31513 will degrade performances by 10.84%

_{Comparing cbornet:use-pytest-in-test_langchain (ba49b0a) with master (e455fab)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

❌ 3 regressions
✅ 10 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	test_import_time[InMemoryVectorStore]	236.6 ms	263.3 ms	-10.14%
❌	test_import_time[PydanticOutputParser]	362.1 ms	402.4 ms	-10.02%
❌	test_import_time[tool]	466.8 ms	523.6 ms	-10.84%

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #31513 will not alter performance

_{Comparing cbornet:use-pytest-in-test_langchain (ba49b0a) with master (e455fab)}

Summary

✅ 13 untouched benchmarks