.NET: Fix AzureFunctions integration tests - set FUNCTIONS_WORKER_RUNTIME by giles17 · Pull Request #6425 · microsoft/agent-framework

giles17 · 2026-06-09T20:43:13Z

Motivation and Context

Azure Functions Core Tools v4 can no longer auto-detect the dotnet-isolated worker runtime when local.settings.json is absent (it's gitignored). This caused all 12 SamplesValidation and WorkflowSamplesValidation integration tests to fail in CI with:

Can't determine project language from files.
Worker runtime cannot be 'None'. Please set a valid runtime.

Fixes: #6402

Description

Add FUNCTIONS_WORKER_RUNTIME=dotnet-isolated environment variable to both StartFunctionApp helpers in SamplesValidation.cs and WorkflowSamplesValidation.cs
Remove the temporary skip attributes that were added to unblock CI

Contribution Checklist

The code builds clean without any errors or warnings
The PR follows the Contribution Guidelines
All unit tests pass, and I have added new tests where possible

github-actions

Automated Code Review

Reviewers: 5 | Confidence: 95% | Result: All clear

Reviewed: Correctness, Security Reliability, Test Coverage, Failure Modes, Design Approach

Automated review by giles17's agents

Copilot

Pull request overview

Fixes CI failures in the .NET Azure Functions integration tests by ensuring Azure Functions Core Tools v4 can correctly determine the worker runtime when local.settings.json is not present (as in CI). This re-enables the previously skipped sample validation test suites.

Changes:

Set FUNCTIONS_WORKER_RUNTIME=dotnet-isolated in both StartFunctionApp helpers used by the integration tests.
Remove temporary [Fact(... Skip=...)] / [RetryFact(... Skip=...)] attributes so the affected tests run again.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
dotnet/tests/Microsoft.Agents.AI.Hosting.AzureFunctions.IntegrationTests/WorkflowSamplesValidation.cs	Re-enables workflow sample tests and sets `FUNCTIONS_WORKER_RUNTIME` when launching the workflow Azure Functions samples.
dotnet/tests/Microsoft.Agents.AI.Hosting.AzureFunctions.IntegrationTests/SamplesValidation.cs	Re-enables durable agent sample tests and sets `FUNCTIONS_WORKER_RUNTIME` when launching the Azure Functions samples.

Azure Functions Core Tools v4 can no longer auto-detect the worker runtime when local.settings.json is absent. Add the required FUNCTIONS_WORKER_RUNTIME=dotnet-isolated environment variable to both StartFunctionApp helpers and re-enable the skipped tests. Fixes: #6402 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot AI review requested due to automatic review settings June 9, 2026 20:43

giles17 added the .NET label Jun 9, 2026

Copilot started reviewing on behalf of giles17 June 9, 2026 20:43 View session

giles17 temporarily deployed to integration June 9, 2026 20:44 — with GitHub Actions Inactive

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giles17 had a problem deploying to integration June 9, 2026 20:46 — with GitHub Actions Failure

giles17 temporarily deployed to integration June 9, 2026 20:46 — with GitHub Actions Inactive

Copilot AI reviewed Jun 9, 2026

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giles17 temporarily deployed to integration June 10, 2026 02:53 — with GitHub Actions Inactive

giles17 enabled auto-merge June 10, 2026 03:12

SergeyMenshykh approved these changes Jun 10, 2026

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westey-m approved these changes Jun 10, 2026

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