[6.1] Suppress xUnit warnings for vector tests

[apoorvdeshmukh]

Description

Add attribute for suppressing warnings for vector tests of following nature.
They appear while running tests on console.

   /usr/share/dotnet/sdk/9.0.301/Microsoft.TestPlatform.targets(48,5): warning : [xUnit.net 00:00:00.59] ManualTests: Non-serializable data ('System.Object[]') found for 'Microsoft.Data.SqlClient.ManualTesting.Tests.SQL.VectorTest.NativeVectorFloat32Tests.TestSqlVectorFloat32ParameterInsertionAndReads'; falling back to single test case.
    /usr/share/dotnet/sdk/9.0.301/Microsoft.TestPlatform.targets(48,5): warning : [xUnit.net 00:00:00.59] ManualTests: Non-serializable data ('System.Object[]') found for 'Microsoft.Data.SqlClient.ManualTesting.Tests.SQL.VectorTest.NativeVectorFloat32Tests.TestSqlVectorFloat32ParameterInsertionAndReadsAsync'; falling back to single test case.
    /usr/share/dotnet/sdk/9.0.301/Microsoft.TestPlatform.targets(48,5): warning : [xUnit.net 00:00:00.59] ManualTests: Non-serializable data ('System.Object[]') found for 'Microsoft.Data.SqlClient.ManualTesting.Tests.SQL.VectorTest.NativeVectorFloat32Tests.TestStoredProcParamsForVectorFloat32'; falling back to single test case.
    /usr/share/dotnet/sdk/9.0.301/Microsoft.TestPlatform.targets(48,5): warning : [xUnit.net 00:00:00.59] ManualTests: Non-serializable data ('System.Object[]') found for 'Microsoft.Data.SqlClient.ManualTesting.Tests.SQL.VectorTest.NativeVectorFloat32Tests.TestStoredProcParamsForVectorFloat32Async'; falling back to single test case.

Testing

git\SqlClient>dotnet test "src\Microsoft.Data.SqlClient\tests\ManualTests\Microsoft.Data.SqlClient.ManualTesting.Tests.csproj" -p:Platform="AnyCPU" -p:Configuration="Debug" -p:TestTargetOS="Windowsnetcoreapp" --no-build -v n --filter "FullyQualifiedName=Microsoft.Data.SqlClient.ManualTesting.Tests.SQL.VectorTest.NativeVectorFloat32Tests.TestBulkCopyFromSqlTable"
[xUnit.net 00:00:00.00] xUnit.net VSTest Adapter v2.8.2+699d445a1a (64-bit .NET 9.0.7)
[xUnit.net 00:00:00.00] xUnit.net VSTest Adapter v2.8.2+699d445a1a (64-bit .NET 8.0.18)
[xUnit.net 00:00:00.07]   Discovering: ManualTests (method display = ClassAndMethod, method display options = None)
[xUnit.net 00:00:00.07]   Discovering: ManualTests (method display = ClassAndMethod, method display options = None)
[xUnit.net 00:00:00.57]   Discovered:  ManualTests (found 1059 test cases)
[xUnit.net 00:00:00.57]   Starting:    ManualTests (parallel test collections = on [20 threads], stop on fail = off)
[xUnit.net 00:00:00.54]   Discovered:  ManualTests (found 1059 test cases)
[xUnit.net 00:00:00.54]   Starting:    ManualTests (parallel test collections = on [20 threads], stop on fail = off)
[xUnit.net 00:00:00.75]   Finished:    ManualTests
[xUnit.net 00:00:00.71]   Finished:    ManualTests
  Microsoft.Data.SqlClient.ManualTesting.Tests test net9.0 succeeded (1.2s)
  Microsoft.Data.SqlClient.ManualTesting.Tests test net8.0 succeeded (1.2s)

Test summary: total: 4, failed: 0, succeeded: 4, skipped: 0, duration: 1.3s
Build succeeded in 1.6s

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[Copilot]

Pull Request Overview

Suppress xUnit discovery warnings for parameterized vector tests by disabling test-case enumeration on MemberData attributes.

• Added DisableDiscoveryEnumeration = true to the four existing MemberData attributes in NativeVectorFloat32Tests.
• Aims to prevent “Non-serializable data” warnings during discovery.

Comments suppressed due to low confidence (1)

src/Microsoft.Data.SqlClient/tests/ManualTests/SQL/VectorTest/NativeVectorFloat32Tests.cs:151

• Ensure the test project references an xUnit version that supports DisableDiscoveryEnumeration, as older xUnit 2.x versions may not recognize this property and could cause build or discovery failures.

        [MemberData(nameof(VectorFloat32TestData.GetVectorFloat32TestData), MemberType = typeof(VectorFloat32TestData), DisableDiscoveryEnumeration = true)]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.58%. Comparing base (6773a65) to head (80a822e).
Report is 6 commits behind head on release/6.1.

Additional details and impacted files

@@               Coverage Diff                @@
##           release/6.1    #3480       +/-   ##
================================================
+ Coverage        68.87%   92.58%   +23.70%     
================================================
  Files              280        6      -274     
  Lines            62322      310    -62012     
================================================
- Hits             42927      287    -42640     
+ Misses           19395       23    -19372     

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