add test for svg exporter and escape xml characters

src/UglyToad.PdfPig.Tests/Integration/LaTexTests.cs

@@ -1,4 +1,6 @@
-namespace UglyToad.PdfPig.Tests.Integration
+using UglyToad.PdfPig.DocumentLayoutAnalysis.Export;
+
+namespace UglyToad.PdfPig.Tests.Integration
 {
     using System;
     using System.Collections.Generic;
@@ -145,6 +147,19 @@ used per estimate, we introduce a “complement class”
Naive Bayes is often us
                 Assert.StartsWith("<?xpacket begin='' id='W5M0MpCehiHzreSzNTczkc9d'", text);
             }
         }
+
+        [Fact]
+        public void CanExportSvg()
+        {
+            using (var document = PdfDocument.Open(GetFilename(), new ParsingOptions{ ClipPaths = true }))
+            {
+                var page = document.GetPage(1);
+
+                var svg = new SvgTextExporter().Get(page);
+
+                Assert.NotNull(svg);
+            }
+        }
 
         private static IReadOnlyList<AssertablePositionData> GetPdfBoxPositionData()
         {