Use factory

source/Tests/Infrastructure/OutgoingMessages/RejectRequestChangeAccountingPointCharacteristics/RejectRequestChangeAccountingPointCharacteristicsDocumentWriterTests.cs

@@ -30,6 +30,7 @@
 using Infrastructure.Configuration.Serialization;
 using Infrastructure.OutgoingMessages.Common;
 using Infrastructure.OutgoingMessages.RejectRequestChangeAccountingPointCharacteristics;
+using Tests.Factories;
 using Tests.Infrastructure.OutgoingMessages.Asserts;
 using Xunit;
 using MarketActivityRecord = Domain.OutgoingMessages.RejectRequestChangeAccountingPointCharacteristics.MarketActivityRecord;
@@ -39,21 +40,19 @@ namespace Tests.Infrastructure.OutgoingMessages.RejectRequestChangeAccountingPoi
 public class RejectRequestChangeAccountingPointCharacteristicsDocumentWriterTests
 {
     private readonly RejectRequestChangeAccountingPointCharacteristicsMessageWriter _xmlMessageWriter;
-    private readonly ISystemDateTimeProvider _systemDateTimeProvider;
     private readonly IMessageRecordParser _messageRecordParser;
     private ISchemaProvider? _schemaProvider;
 
     public RejectRequestChangeAccountingPointCharacteristicsDocumentWriterTests()
     {
-        _systemDateTimeProvider = new SystemDateTimeProvider();
         _messageRecordParser = new MessageRecordParser(new Serializer());
         _xmlMessageWriter = new RejectRequestChangeAccountingPointCharacteristicsMessageWriter(_messageRecordParser);
     }
 
     [Fact]
     public async Task Document_is_valid()
     {
-        var header = new MessageHeader(ProcessType.MoveIn.Name, "SenderId", MarketRole.MeteringPointAdministrator.Name, "ReceiverId", MarketRole.EnergySupplier.Name, Guid.NewGuid().ToString(), _systemDateTimeProvider.Now());
+        var header = MessageHeaderFactory.Create();
         var marketActivityRecords = new List<MarketActivityRecord>()
         {
             new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "FakeMarketEvaluationPointId", new List<Reason>()