Remove Debug.Assert

Author: ascott18

PdfSharpCore/Drawing/XForm.cs

@@ -180,7 +180,11 @@ internal virtual void Finish()
             if (_formState == FormState.NotATemplate || _formState == FormState.Finished)
                 return;
 
-            Debug.Assert(_formState == FormState.Created || _formState == FormState.UnderConstruction);
+            if (!(_formState == FormState.Created || _formState == FormState.UnderConstruction))
+            {
+                throw new InvalidOperationException("Expected the form to be Created or UnderConstruction");
+            }
+
             _formState = FormState.Finished;
             Gfx.Dispose();
             Gfx = null;
@@ -189,7 +193,6 @@ internal virtual void Finish()
             {
                 //pdfForm.CreateStream(PdfEncoders.RawEncoding.GetBytes(PdfRenderer.GetContent()));
                 PdfRenderer.Close();
-                Debug.Assert(PdfRenderer == null);
 
                 if (_document.Options.CompressContentStreams)
                 {