diff --git a/ktwebservice/nunit/document_metadata.cs b/ktwebservice/nunit/document_metadata.cs
index af29019..39bb5cc 100644
--- a/ktwebservice/nunit/document_metadata.cs
+++ b/ktwebservice/nunit/document_metadata.cs
@@ -139,11 +139,41 @@ namespace MonoTests.KnowledgeTree
 
 			Assert.AreEqual("Media Type", update_resp.metadata[1].fields[2].name);
 			Assert.AreEqual("Text'", update_resp.metadata[1].fields[2].value);
+	    }
 
+		[Test]
+		public void ProblemMetadataNoFieldSetTest()
+		{
+			kt_metadata_fieldset[] fs = new kt_metadata_fieldset[1];
+			fs[0] = new kt_metadata_fieldset();
+			fs[0].fieldset = "UnknownFieldset";
+			fs[0].fields = new kt_metadata_field[1];
+			fs[0].fields[0] = new kt_metadata_field();
+			fs[0].fields[0].name = "Document Author";
+			fs[0].fields[0].value = "Joe \\Soap";
 
-	    	}
+			kt_sysdata_item[] sysdata = new kt_sysdata_item[0];
+
+			kt_document_detail update_resp = this._kt.update_document_metadata(this._session, this._docId, fs, sysdata);
+			Assert.AreEqual(0, update_resp.status_code);
+	    }
 
+	    [Test]
+		public void ProblemMetadataNoFieldTest()
+		{
+			kt_metadata_fieldset[] fs = new kt_metadata_fieldset[1];
+			fs[0] = new kt_metadata_fieldset();
+			fs[0].fieldset = "General information";
+			fs[0].fields = new kt_metadata_field[1];
+			fs[0].fields[0] = new kt_metadata_field();
+			fs[0].fields[0].name = "Document Owner";
+			fs[0].fields[0].value = "Joe \\Soap";
+
+			kt_sysdata_item[] sysdata = new kt_sysdata_item[0];
 
+			kt_document_detail update_resp = this._kt.update_document_metadata(this._session, this._docId, fs, sysdata);
+			Assert.AreEqual(0, update_resp.status_code);
+	    }
 
 	}
 }