fix error

Author: gilsonjoanelo

src/FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests/Query/NorthwindMiscellaneousQueryFbTest.cs

@@ -16,14 +16,10 @@
 //$Authors = Jiri Cincura (jiri@cincura.net)
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
 using FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests.Helpers;
 using FirebirdSql.EntityFrameworkCore.Firebird.FunctionalTests.TestUtilities;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Query;
-using Microsoft.EntityFrameworkCore.TestModels.Northwind;
 using Microsoft.EntityFrameworkCore.TestUtilities;
 using Xunit;
 
@@ -168,38 +164,10 @@ public override Task Where_nanosecond_and_microsecond_component(bool async)
 		return base.Where_nanosecond_and_microsecond_component(async);
 	}
 
-	[ConditionalFact]
-
-	public override async Task Contains_over_concatenated_columns_both_fixed_length(bool async)
+	[NotSupportedByProviderTheory]
+	[MemberData(nameof(IsAsyncData))]
+	public override Task Contains_over_concatenated_columns_both_fixed_length(bool async)
 	{
-		using var context = _fixture.CreateContext();
-
-		// Coleção local com valores concatenados
-		var ids = new[] { "ALFKIContactName", "ANATRContactName" };
-
-		var query = context.Customers
-			.Where(c => ids.Contains(c.CustomerID.Trim() + c.ContactName.Trim()));
-
-		List<Customer> customers;
-		if (async)
-		{
-			// Materializa assíncrono sem ToListAsync()
-			customers = new List<Customer>();
-			await foreach (var c in query.AsAsyncEnumerable())
-			{
-				customers.Add(c);
-			}
-		}
-		else
-		{
-			customers = query.ToList();
-		}
-
-
-		// Valida que os clientes corretos foram retornados
-		Assert.Equal(2, customers.Count);
-		Assert.Contains(customers, c => c.CustomerID == "ALFKI");
-		Assert.Contains(customers, c => c.CustomerID == "ANATR");
-
+		return base.Contains_over_concatenated_columns_both_fixed_length(async);
 	}
 }