target mar preview test

[kristapratico]

Description

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All SDK Contribution checklist:

• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.

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• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[kristapratico]

/azp run python - openai - tests

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Azure Pipelines successfully started running 1 pipeline(s).

[kristapratico]

/azp run python - openai - tests

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

Pull Request Overview

This pull request updates the test suite for the SDK to use a new preview API version and adds inline assertions to validate the properties of newly created vector stores, while also updating the file deletion reference to use the correct variable.

• Updated the PREVIEW version string in tests.
• Added direct validation of vector store properties in both synchronous and asynchronous tests.
• Changed file deletion references from file.id to vector_store_file.id in tests.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
sdk/openai/azure-openai/tests/conftest.py	Updated the preview API version string for tests
sdk/openai/azure-openai/tests/test_vector_stores.py	Added inline assertions for vector store properties and updated file deletion reference
sdk/openai/azure-openai/tests/test_vector_stores_async.py	Synchronized the changes with the synchronous tests regarding assertions and file deletion