fetches test models from azure storage blob

[prathikr]

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Project	Deployment	Actions	Updated (UTC)
foundry-local	Ready	Preview, Comment	Jun 30, 2026 11:19pm

[Copilot]

Pull request overview

This PR migrates the sdk_v2 test infrastructure away from cloning the test-data-shared Azure DevOps Git repo (LFS) and instead downloads the shared test model cache from Azure Blob Storage. Across all sdk_v2 languages (C++, C#, JS, Python), model-dependent tests are now gated on a required FOUNDRY_TEST_DATA_DIR environment variable, and the CI pipelines populate that directory via a new azcopy-based template. This unifies how the model cache is provided and removes the per-platform git-lfs bootstrapping that the repo checkout required.

Changes:

• Adds .pipelines/templates/fetch-test-data-from-blob.yml, which uses AzureCLI@2 + azcopy (AZCLI auto-login) to download model data into a destination path, replacing checkout-steps.yml usage in v2 build/test stages (and dropping the macOS git-lfs install steps).
• Makes FOUNDRY_TEST_DATA_DIR the single required source of the model cache: C++ GetTestModelCacheDir now throws if unset (removing the repo-root fallback), Python conftest.py skips when it's unset/missing, and C# Utils.cs drops the appsettings.Test.json fallback (and its config package references).
• Updates developer docs (sdk_v2/DEVELOPMENT.md, LOCAL_MODEL_TESTING.md) to describe the new env-var workflow.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.pipelines/templates/fetch-test-data-from-blob.yml	New template that azcopy-downloads test model data from blob storage
.pipelines/v2/templates/steps-build-{linux,macos,windows}.yml	Replace test-data-shared checkout with blob fetch into $(Agent.BuildDirectory)/test-data-shared
.pipelines/v2/templates/stages-{cs,js,python}.yml	Replace checkout + macOS git-lfs install with blob fetch in test stages
sdk_v2/cpp/test/internal_api/test_model_cache.h	Require FOUNDRY_TEST_DATA_DIR; remove repo-root default fallback and FindRepoRoot
sdk_v2/cs/test/FoundryLocal.Tests/Utils.cs	Require env var; remove appsettings-based fallback logic
sdk_v2/cs/test/FoundryLocal.Tests/Microsoft.AI.Foundry.Local.Tests.csproj	Remove appsettings.Test.json copy and Microsoft.Extensions.Configuration packages
sdk_v2/cs/test/FoundryLocal.Tests/appsettings.Test.json	Deleted (no longer used)
sdk_v2/cs/test/FoundryLocal.Tests/LOCAL_MODEL_TESTING.md	Document env-var-based workflow
sdk_v2/python/test/conftest.py	Skip model tests unless FOUNDRY_TEST_DATA_DIR is set and exists
sdk_v2/DEVELOPMENT.md	Document the model cache requirement for tests