Test with recording for ai search and function tool samples

[howieleung]

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.
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Testing Guidelines

• Pull request includes test coverage for the included changes.

[Copilot]

Pull request overview

This pull request adds test recording infrastructure for AI search and function tool samples in the Azure AI Projects SDK. It introduces a new automated testing framework that executes samples dynamically, validates their output, and supports test recordings through the devtools_testutils framework.

Key changes:

• New test infrastructure with test_tools_samples method to run samples from the samples/agents/tools folder with recording support
• Added environment variable azure_ai_projects_tests_ai_search_user_input to support non-interactive testing
• Modified samples to output standardized result format (==> Result:) and include cleanup logic

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
sdk/ai/azure-ai-projects/tests/test_base.py	Added new environment variable for AI search user input to support automated testing
sdk/ai/azure-ai-projects/tests/samples/test_samples.py	Introduced test infrastructure including ArgumentPasser decorator, _get_tools_sample_paths() helper, and test_tools_samples() method for automated sample testing with recordings
sdk/ai/azure-ai-projects/samples/agents/tools/sample_agent_function_tool.py	Updated output format to use standardized marker and added agent cleanup logic
sdk/ai/azure-ai-projects/samples/agents/tools/sample_agent_ai_search.py	Added support for optional environment variable input, updated output format, and added cleanup logic
sdk/ai/azure-ai-projects/assets.json	Updated test asset tag to reference new recordings

Comments suppressed due to low confidence (1)

sdk/ai/azure-ai-projects/samples/agents/tools/sample_agent_ai_search.py:67

• The agent name was changed from "MyAgent" to "MyAgent20". This appears to be a temporary testing change that should not be committed. Consider reverting to the original name "MyAgent" or using a more descriptive name if the change is intentional.

        agent_name="MyAgent",