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[ci-scan] Test failure: CryptoStreamTests.ReadWrite_Success MemberData not found on maccatalyst #128451
Description
Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1429323
Build error leg or test failing: maccatalyst-arm64 Release AllSubsets_CoreCLR - System.Security.Cryptography.Tests
Error Details
CryptoStreamTests.ReadWrite_Success fails on maccatalyst-arm64 (AllSubsets_CoreCLR) because xUnit cannot locate the [MemberData] property ReadWrite_Success_MemberData. This is a known pattern on mobile CoreCLR where xUnit MemberData lookup fails for inherited static members due to aggressive trimming or reflection metadata differences.
[FAIL] System.Security.Cryptography.Tests.CryptoStreamTests.ReadWrite_Success
System.ArgumentException : Could not find public static member (property, field, or method) named 'ReadWrite_Success_MemberData' on System.Security.Cryptography.Tests.CryptoStreamTests
Affected legs:
- runtime-extra-platforms (def 154): maccatalyst-arm64 Release AllSubsets_CoreCLR
First build it occurred: 1425947 (2026-05-19). 3 occurrences in scanned window.
In-flight fix: #128409
Error Message
{
"ErrorMessage": ["CryptoStreamTests.ReadWrite_Success", "Could not find public static member (property, field, or method) named 'ReadWrite_Success_MemberData' on System.Security.Cryptography.Tests.CryptoStreamTests"],
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Note
🔒 Integrity filter blocked 1 item
The following item was blocked because it doesn't meet the GitHub integrity level.
- #125825
search_issues: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
To allow these resources, lower min-integrity in your GitHub frontmatter:
tools:
github:
min-integrity: approved # merged | approved | unapproved | noneGenerated by CI Outer-Loop Failure Scanner · ● 44.4M · ◷
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 23 |
Activity
dotnet-policy-service commentedon May 21, 2026
Tagging subscribers to this area: @bartonjs, @vcsjones, @dotnet/area-system-security
See info in area-owners.md if you want to be subscribed.
vcsjones commentedon Jun 11, 2026
This seems to be the same problem as #127226. Something in the test infrastructure is trimming out the test data member on Catalyst.
dotnet-policy-service commentedon Jun 11, 2026
Tagging subscribers to 'os-maccatalyst': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.
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BrzVlad commentedon Jun 29, 2026
Should be fixed by #128409
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