[Flaky Test] Microsoft.Build.UnitTests.CodeTaskFactoryTests.BuildTaskSimpleCodeFactory_NoAssemblyNameRedirect

**Flaky-test key** (automated de-duplication — do not edit):
```text
flaky-test-id: Microsoft.Build.UnitTests.CodeTaskFactoryTests.BuildTaskSimpleCodeFactory_NoAssemblyNameRedirect
```

## Evidence

- **Distinct sources:** 4 (0 PRs, 4 rolling builds on `main`)
- **Rolling build IDs:** [1514373](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1514373), [1517682](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1517682), [1527742](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1527742), [1532844](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1532844)
- **Legs:** FullOnWindows Release
- **Assembly:** `Microsoft.Build.Tasks.UnitTests`
- **First seen:** 2026-07-17 | **Last seen:** 2026-07-30
- **Error hash:** 2f59b830
- **Sample error:** `Assert.True() Failure — Expected: True, Actual: False`

## Action

This test will be quarantined via `[ActiveIssue("")]` (from `Microsoft.DotNet.XUnitV3Extensions`, namespace `Xunit`) until the underlying nondeterminism is fixed. The quarantine pipeline (def 344) will continue gathering pass/fail signal.

**Assembly:** `Microsoft.Build.Tasks.UnitTests`
**Class:** `Microsoft.Build.UnitTests.CodeTaskFactoryTests`
**Method:** `BuildTaskSimpleCodeFactory_NoAssemblyNameRedirect`
**Source:** `src/Tasks.UnitTests/CodeTaskFactoryTests.cs`

> [!WARNING]
>
> Firewall blocked 2 domains
>
> The following domains were blocked by the firewall during workflow execution:
>
> - `awmgmcpg`
> - `southcentralus0.in.applicationinsights.azure.com`
>> To allow these domains, add them to the `network.allowed` list in your workflow frontmatter:
>
> ```yaml
> network:
> allowed:
> - defaults
> - "awmgmcpg"
> - "southcentralus0.in.applicationinsights.azure.com"
> ```
>
> See [Network Configuration](https://github.github.com/gh-aw/reference/network/) for more information.
>
>

> Generated by [Flaky Test Triage](https://github.com/dotnet/msbuild/actions/runs/30541891245) · sonnet46 · 155.1 AIC · ⌖ 5.48 AIC · ⊞ 14.7K · [◷](https://github.com/search?q=repo%3Adotnet%2Fmsbuild+is%3Aissue+%22gh-aw-workflow-call-id%3A+dotnet%2Fmsbuild%2Fflaky-test-detector.agent%22&type=issues)

Start in src/Tasks.UnitTests/CodeTaskFactoryTests.cs at CodeTaskFactoryTests.BuildTaskSimpleCodeFactory_NoAssemblyNameRedirect and review the Assert.True() failure reported on FullOnWindows Release. Use the listed rolling builds and the quarantine signal to investigate the nondeterminism. Done means the test reliably passes without the ActiveIssue quarantine.

Written by the indexing model from the issue text.