Issue 474 header defaults

src/ACadSharp.Tests/IO/CadReaderTestsBase.cs

@@ -1,6 +1,7 @@
 using ACadSharp.Entities;
 using ACadSharp.Header;
 using ACadSharp.IO;
+using ACadSharp.Tables;
 using ACadSharp.Tests.TestModels;
 using System;
 using System.Collections.Generic;
@@ -85,6 +86,21 @@ public virtual void AssertDocumentTree(FileModel test)
 			this._docIntegrity.AssertDocumentTree(doc);
 		}
 
+		public virtual void AssertDocumentHeader(FileModel test)
+		{
+			CadDocument doc = this.getDocument(test, false);
+			CadHeader header = doc.Header;
+
+			Assert.Equal(doc.Layers[Layer.DefaultName], header.CurrentLayer);
+			Assert.Equal(Layer.DefaultName, header.CurrentLayerName, ignoreCase: true);
+
+			Assert.Equal(doc.LineTypes[LineType.ByLayerName], header.CurrentLineType);
+			Assert.Equal(LineType.ByLayerName, header.CurrentLineTypeName, ignoreCase: true);
+
+			Assert.Equal(doc.TextStyles[TextStyle.DefaultName], header.CurrentTextStyle);
+			Assert.Equal(TextStyle.DefaultName, header.TextStyleName, ignoreCase: true);
+		}
+
 		public void Dispose()
 		{
 			this._documents.Clear();

src/ACadSharp.Tests/IO/DWG/DwgReaderTests.cs

@@ -64,6 +64,13 @@ public override void AssertDocumentTree(FileModel test)
 			this._docIntegrity.AssertDocumentTree(doc);
 		}
 
+		[Theory]
+		[MemberData(nameof(DwgFilePaths))]
+		public override void AssertDocumentHeader(FileModel test)
+		{
+			base.AssertDocumentHeader(test);
+		}
+
 		[Theory(Skip = "Long time test")]
 		[MemberData(nameof(DwgFilePaths))]
 		public void ReadCrcEnabledTest(FileModel test)

src/ACadSharp.Tests/IO/DXF/DxfReaderTests.cs

@@ -135,6 +135,14 @@ public override void AssertDocumentTree(FileModel test)
 			this._docIntegrity.AssertDocumentTree(doc);
 		}
 
+		[Theory]
+		[MemberData(nameof(DxfAsciiFiles))]
+		[MemberData(nameof(DxfBinaryFiles))]
+		public override void AssertDocumentHeader(FileModel test)
+		{
+			base.AssertDocumentHeader(test);
+		}
+
 #if !NETFRAMEWORK
 		[Theory]
 		[MemberData(nameof(DxfAsciiFiles))]