diff --git a/.gitpod.yml b/.gitpod.yml
index 26e2f8e..a5d88c8 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -1,5 +1,5 @@
 image: gitpod/workspace-dotnet
 
 tasks:
-  - name: Setup and test
-    command: cd csharp && dotnet test -c Release -f net8
\ No newline at end of file
+  - name: Test
+    command: (cd csharp && dotnet test -c Release -f net8)
\ No newline at end of file
diff --git a/csharp/Platform.Protocols.Lino.Tests/ParserTests.cs b/csharp/Platform.Protocols.Lino.Tests/ParserTests.cs
index c088085..8145f24 100644
--- a/csharp/Platform.Protocols.Lino.Tests/ParserTests.cs
+++ b/csharp/Platform.Protocols.Lino.Tests/ParserTests.cs
@@ -182,5 +182,39 @@ public static void QuotedReferencesWithSpacesTest()
             var formattedLinks = links.Format();
             Assert.Equal(target, formattedLinks);
         }
+
+        [Fact]
+        public static void EmptyLinkTest()
+        {
+            var source = @":";
+            var target = @":";
+            var parser = new Parser();
+            var links = parser.Parse(source);
+            var formattedLinks = links.Format();
+            Assert.Equal(target, formattedLinks);
+        }
+
+
+        [Fact]
+        public static void EmptyLinkWithParenthesesTest()
+        {
+            var source = @"()";
+            var target = @"()";
+            var parser = new Parser();
+            var links = parser.Parse(source);
+            var formattedLinks = links.Format();
+            Assert.Equal(target, formattedLinks);
+        }
+
+        [Fact]
+        public static void EmptyLinkWithEmptySelfReferenceTest()
+        {
+            var source = @"(:)";
+            var target = @"(:)";
+            var parser = new Parser();
+            var links = parser.Parse(source);
+            var formattedLinks = links.Format();
+            Assert.Equal(target, formattedLinks);
+        }
     }
 }