Fix ExportTests: register SqlServer dialect, use correct secret name, disable parallelism

Author: mikasoukhov

Tests/AsmInit.cs

@@ -25,7 +25,7 @@ public static async Task Init(TestContext _)
 		await CompilationExtensions.Init(Paths.FileSystem, Helper.LogManager.Application, [("designer_extensions.py", File.ReadAllText("../../../../Diagram.Core/python/designer_extensions.py"))], default);
 
 		ConfigManager.RegisterService<IDatabaseProvider>(new AdoDatabaseProvider());
-		DatabaseProviderRegistry.Register(DatabaseProviderRegistry.SqlServer, SqlClientFactory.Instance);
+		SqlServerDialect.Register(SqlClientFactory.Instance);
 
 		Helper.FileSystem.ClearTemp();
 	}

Tests/ExportTests.cs

@@ -5,6 +5,7 @@
 using StockSharp.Algo.Export;
 
 [TestClass]
+[DoNotParallelize]
 public class ExportTests : BaseTestClass
 {
 	private static readonly TemplateTxtRegistry _txtReg = new();
@@ -48,7 +49,7 @@ async Task Do(string extension, Func<Stream, BaseExporter> create)
 		var dbExporter = new DatabaseExporter(DatabaseRegistry.Provider, dataType, new DatabaseConnectionPair
 		{
 			Provider = DatabaseProviderRegistry.AllProviders.First(),
-			ConnectionString = GetSecret("DB_CONNECTION_STRING"),
+			ConnectionString = GetSecret("SQLSERVER_CONNECTION_STRING"),
 		})
 		{
 			DropExisting = true,

Tests/Tests.csproj

@@ -7,6 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Ecng.Excel.OpenXml" Version="$(EcngVer)" />
     <PackageReference Include="Ecng.Data.Ado" Version="$(EcngVer)" />
+    <PackageReference Include="Ecng.Data.SqlServer" Version="$(EcngVer)" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="$(MsSqlClientVer)" />
   </ItemGroup>
   <ItemGroup>