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[test-quarantine] Quarantine ServerVirtualizationTest.DynamicContent_PrependItemsWhileScrolledToMiddle_VisibleItemsStayInPlace#66312

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ilonatommy merged 2 commits intomainfrom
quarantine/server-virtualization-dynamic-content-prepend-140c6fc65d0f3538
Apr 14, 2026
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[test-quarantine] Quarantine ServerVirtualizationTest.DynamicContent_PrependItemsWhileScrolledToMiddle_VisibleItemsStayInPlace#66312
ilonatommy merged 2 commits intomainfrom
quarantine/server-virtualization-dynamic-content-prepend-140c6fc65d0f3538

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Quarantines ServerVirtualizationTest.DynamicContent_PrependItemsWhileScrolledToMiddle_VisibleItemsStayInPlace which is flaky in server-execution mode.

Changes

  1. Makes DynamicContent_PrependItemsWhileScrolledToMiddle_VisibleItemsStayInPlace virtual in VirtualizationTest.cs (base class — WASM/static variant passes fine and is unaffected)
  2. Adds a quarantined override in ServerVirtualizationTest in TestSubclasses.cs following the same pattern as other quarantined server-only test overrides

Failure summary

  • 4 failures in the components-e2e pipeline (definition 87)
  • Assert.True() Failure — timing race in server-side Blazor when prepending items

Tracking issue: https://github.com/dotnet/aspnetcore/issues/#66308

Note

🔒 Integrity filter blocked 22 items

The following items were blocked because they don't meet the GitHub integrity level.

  • #66271 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66251 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66239 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66228 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66172 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66168 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66159 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66137 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66135 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66092 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66084 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66061 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #66060 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #65893 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #65891 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • #65880 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".
  • ... and 6 more items

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by Daily Test Quarantine Management · ● 11.7M ·

…crolledToMiddle_VisibleItemsStayInPlace

Test has failed 4 times in pipeline 87. Server-only flakiness (base
VirtualizationTest passes). Add virtual modifier to base class and quarantine
override in ServerVirtualizationTest.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@github-actions github-actions bot requested a review from a team as a code owner April 14, 2026 11:02
@ilonatommy ilonatommy self-assigned this Apr 14, 2026
@github-actions github-actions bot added the needs-area-label Used by the dotnet-issue-labeler to label those issues which couldn't be triaged automatically label Apr 14, 2026
@ilonatommy ilonatommy added area-blazor Includes: Blazor, Razor Components and removed needs-area-label Used by the dotnet-issue-labeler to label those issues which couldn't be triaged automatically labels Apr 14, 2026
@ilonatommy ilonatommy added this to the .NET 11 Planning milestone Apr 14, 2026
@ilonatommy ilonatommy merged commit eb4ede4 into main Apr 14, 2026
31 checks passed
@ilonatommy ilonatommy deleted the quarantine/server-virtualization-dynamic-content-prepend-140c6fc65d0f3538 branch April 14, 2026 13:15
ilonatommy added a commit to ilonatommy/aspnetcore that referenced this pull request Apr 14, 2026
…e, restore missing PrependItems quarantine

The merge from main incorrectly re-introduced a quarantine for
CanElevateEffectiveMaxItemCount_WhenOverscanExceedsMax (dotnet#65962) which
was already fixed and unquarantined by dotnet#66291 on main. It also dropped
the DynamicContent_PrependItemsWhileScrolledToMiddle quarantine (dotnet#66308)
that was added by dotnet#66312 on main.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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