Quarantine QuickGridNoInteractivityTest class

[github-actions]

Failing Test(s)

Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest

Multiple methods in this class are failing intermittently:

• QuickGridNoInteractivityTest.CanColumnSortByInt
• QuickGridNoInteractivityTest.TwoGridsSortIndependently
• QuickGridNoInteractivityTest.MultiplePaginatorsWorkIndependently
• QuickGridNoInteractivityTest.PaginatorGoNextShowsNextPage
• QuickGridNoInteractivityTest.DualPaginatorsNavigatesAndBothUpdate
• QuickGridNoInteractivityTest.PaginatorNavigationLinksDisabledCorrectly
• QuickGridNoInteractivityTest.PaginatorGoPreviousFromSecondPage
• QuickGridNoInteractivityTest.SortNavigationWithPagination

Error Message

OpenQA.Selenium.NoSuchElementException : no such element: Unable to locate element: {"method":"css selector","selector":"#grid table thead > tr > th:nth-child(1) a.col-title"}
(Session info: chrome=147.0.7727.101)

and:

OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.EqualException: Assert.Equal() Failure: Values differ
Expected: 2
Actual:   1

Stacktrace

Details

   at OpenQA.Selenium.WebDriver.UnpackAndThrowOnError(Response errorResponse, String commandToExecute)
   at OpenQA.Selenium.WebDriver.ExecuteAsync(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.WebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.CanColumnSortByInt() in QuickGridNoInteractivityTest.cs:line 132

   at Xunit.Assert.Equal[T](T expected, T actual, IEqualityComparer`1 comparer)
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass20_0.<WaitAssertCore>b__0()
   at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass23_0`1.<WaitAssertCore>b__0(IWebDriver _)

Logs

Details

[xUnit.net 00:06:18.41]     Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.CanColumnSortByInt [FAIL]
  Failed Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.CanColumnSortByInt [3 s]
  Error Message:
   OpenQA.Selenium.NoSuchElementException : no such element: Unable to locate element: {"method":"css selector","selector":"#grid table thead > tr > th:nth-child(1) a.col-title"}
  (Session info: chrome=147.0.7727.101); For documentation on this error, please visit: (www.selenium.dev/redacted)

[xUnit.net 00:06:31.86]     Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.TwoGridsSortIndependently [FAIL]
  Failed Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.TwoGridsSortIndependently [3 s]
  Error Message:
   OpenQA.Selenium.NoSuchElementException : no such element: Unable to locate element: {"method":"css selector","selector":"#grid table thead > tr > th:nth-child(1) a.col-title"}
  (Session info: chrome=147.0.7727.101)

[xUnit.net 00:07:30.92]     Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.MultiplePaginatorsWorkIndependently [FAIL]
  Failed Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.MultiplePaginatorsWorkIndependently [1 m 1 s]
  Error Message:
   OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.EqualException: Assert.Equal() Failure: Values differ
Expected: 2
Actual:   1

[xUnit.net 00:08:45.99]     Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.PaginatorGoNextShowsNextPage [FAIL]
  Failed Microsoft.AspNetCore.Components.E2ETest.Tests.QuickGridNoInteractivityTest.PaginatorGoNextShowsNextPage [51 s]
  Error Message:
   OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.EqualException: Assert.Equal() Failure: Values differ
Expected: 2
Actual:   1

Build

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1430755&view=results

Generated by Daily Test Quarantine Management · sonnet46 7.4M · ◷

[github-actions]

Investigation

The entire QuickGridNoInteractivityTest class is failing intermittently across multiple builds, with 8+ distinct test methods failing in the same build runs (builds 1430755 and 1432781).

Failure pattern

Two distinct error signatures appear, both pointing to the QuickGrid component not rendering its expected DOM structure:

1. OpenQA.Selenium.NoSuchElementException – Unable to locate #grid table thead > tr > th:nth-child(1) a.col-title. This selector looks for a sortable column header link in the QuickGrid's <thead>. Failing in: CanColumnSortByInt, TwoGridsSortIndependently, SortNavigationWithPagination.

2. OpenQA.Selenium.BrowserAssertFailedException – Pagination count assertion failure (Expected: 2, Actual: 1). The test expects a second page of results but the paginator is stuck on page 1. Failing in: MultiplePaginatorsWorkIndependently, PaginatorGoNextShowsNextPage, DualPaginatorsNavigatesAndBothUpdate, PaginatorGoPreviousFromSecondPage.

3. Assert.Equal() strings differ – Expected: "true", Actual: null for disabled navigation links. Failing in: PaginatorNavigationLinksDisabledCorrectly.

Root cause

The test class uses BasicTestAppServerSiteFixture<RazorComponentEndpointsNoInteractivityStartup<App>>. All failures in both runs occurred in the same build, suggesting a shared infrastructure issue (e.g., the test server failed to start properly, or the browser session became stale). When the server or browser context is degraded, all QuickGrid tests fail with DOM not found or stale state assertions.

The fact that all 8 methods fail together in a single build (rather than sporadically across different builds) is consistent with an environmental/fixture issue rather than a test logic bug.

Generated by Daily Test Quarantine Management · sonnet46 7.4M · ◷