Use direct URLs for test resources#7663
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Temporarily bypass deleted aka.ms aliases for test datasets and centralize resilient direct downloads in the shared test framework. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 57cca22a-bb40-4b25-b169-1c9e46ae88e1
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Pull request overview
This PR updates ML.NET test infrastructure to bypass broken/deleted aka.ms/mlnet-resources aliases by switching tests/benchmarks to direct public URLs, and centralizes downloading logic into a shared helper to improve reliability.
Changes:
- Added
TestDownloadUtilsto perform bounded, retrying downloads via a temp-file + atomic move pattern. - Updated TensorFlow and AutoML test datasets to download from direct
mlpublicassetsblob URLs. - Updated performance benchmarks to fetch datasets from either raw GitHub (repo
test/data) ormlpublicassetsbenchmark blobs.
Show a summary per file
| File | Description |
|---|---|
| test/Microsoft.ML.TestFrameworkCommon/TestDownloadUtils.cs | New shared download helper with retry + temp-file move semantics. |
| test/Microsoft.ML.TestFrameworkCommon/Microsoft.ML.TestFrameworkCommon.csproj | Enables nullable annotations and links in RetryHelper for retries. |
| test/Microsoft.ML.TensorFlow.Tests/TensorflowTests.cs | Replaces ResourceManagerUtils downloads with direct blob URLs + TestDownloadUtils. |
| test/Microsoft.ML.PerformanceTests/ImageClassificationBench.cs | Switches dataset URL from aka.ms to direct blob URL. |
| test/Microsoft.ML.PerformanceTests/BenchmarkBase.cs | Replaces resource manager downloads with direct URL downloads via TestDownloadUtils. |
| test/Microsoft.ML.AutoML.Tests/DatasetUtil.cs | Switches dataset URL from aka.ms to direct blob URL. |
Copilot's findings
- Files reviewed: 6/6 changed files
- Comments generated: 2
Validate response content length and remove the unused benchmark path local. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 57cca22a-bb40-4b25-b169-1c9e46ae88e1
ericstj
enabled auto-merge (squash)
July 16, 2026 21:11
auto-merge was automatically disabled
July 17, 2026 02:03
Pull request was closed
matouskozak
approved these changes
Jul 17, 2026
matouskozak
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matouskozak
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Thanks a lot for fixing this
| string url; | ||
| if (path == "") | ||
| { | ||
| url = $"https://raw.githubusercontent.com/dotnet/machinelearning/main/test/data/{name.Replace('\\', '/')}"; |
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Looking forward, do you think we might need to handle servicing release branches or is that not a concern in ML.NET? Just wondering if by taking data from main branch we might hit an issue later. Note, I haven't onboarded into the full release process so maybe this is not an issue at all.
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Summary
aka.ms/mlnet-resourcesaliases in testsTestDownloadUtilsFixes #7662
Validation
TensorFlowGettingSchemaMultipleTimesandAutoFeaturizer_image_teston net8.0