initial commit

tests/TraceCad.Tests/DxfExporterTests.cs

@@ -0,0 +1,36 @@
+using TraceCad.Core.Geometry;
+using TraceCad.Core.Model;
+using TraceCad.Dxf;
+using Xunit;
+
+namespace TraceCad.Tests;
+
+public sealed class DxfExporterTests
+{
+    [Fact]
+    public void ExportCreatesDxfFile()
+    {
+        var document = SketchDocument.CreateDefault();
+        document.AddEntity(new LineEntity(Guid.NewGuid(), Layer.Cut.Name, new Point2(0, 0), new Point2(100, 0)));
+        document.AddEntity(new CircleEntity(Guid.NewGuid(), Layer.Cut.Name, new Point2(20, 20), 10));
+        document.AddEntity(new ArcEntity(Guid.NewGuid(), Layer.Cut.Name, new Point2(40, 40), 12, 0, 180, false));
+
+        var path = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid():N}.dxf");
+
+        try
+        {
+            new NetDxfExporter().Export(document, path);
+
+            Assert.True(File.Exists(path));
+            Assert.True(new FileInfo(path).Length > 0);
+            Assert.Contains("SECTION", File.ReadAllText(path));
+        }
+        finally
+        {
+            if (File.Exists(path))
+            {
+                File.Delete(path);
+            }
+        }
+    }
+}