Add Tests to fix FamilySearch#43 and FamilySearch#48.

- RecordSet.

Gedcomx.Model.Test/RecordSetTest.cs

@@ -0,0 +1,65 @@
+using System.Xml.Serialization;
+
+using Gx.Records;
+
+using Newtonsoft.Json;
+
+using NUnit.Framework;
+
+namespace Gedcomx.Model.Test;
+
+/// <summary>
+/// Test calss for <see cref="RecordSet"/>
+/// </summary>
+[TestFixture]
+public class RecordSetTest
+{
+    [Test]
+    public void RecordSetEmpty()
+    {
+        RecordSet sut = new();
+
+        VerifyXmlSerialization(sut);
+        VerifyJsonSerialization(sut);
+    }
+
+    [Test]
+    public void RecordSetObjectInitialization()
+    {
+        RecordSet sut = new()
+        {
+            // ExtensibleData
+            Id = "F-1",
+            // HypermediaEnabledData
+            Links = { new(), { "rel", new Uri("https://www.familysearch.org/platform/collections/tree") }, { "rel", "template" } },
+            // RecordSet
+            Lang = "lang",
+            Metadata = new(),
+            Records = { new() }
+        };
+
+        VerifyXmlSerialization(sut);
+        VerifyJsonSerialization(sut);
+    }
+
+    private static void VerifyXmlSerialization(RecordSet sut)
+    {
+        XmlSerializer serializer = new(typeof(RecordSet));
+        using MemoryStream stream = new();
+        serializer.Serialize(stream, sut);
+
+        stream.Seek(0, SeekOrigin.Begin);
+        var result = new StreamReader(stream).ReadToEnd();
+        result.ShouldContain(sut);
+    }
+
+    private static void VerifyJsonSerialization(RecordSet sut)
+    {
+        JsonSerializerSettings jsonSettings = new()
+        {
+            NullValueHandling = NullValueHandling.Ignore
+        };
+
+        Assert.DoesNotThrow(() => JsonConvert.DeserializeObject<RecordSet>(JsonConvert.SerializeObject(sut, jsonSettings), jsonSettings));
+    }
+}

Gedcomx.Model.Test/XmlAssertions.cs

@@ -183,6 +183,17 @@ public static void ShouldContain(this string result, RecordDescriptor recordDesc
             result.ShouldContain(recordDescriptor as HypermediaEnabledData);
         }
 
+        public static void ShouldContain(this string result, RecordSet recordSet)
+        {
+            Assert.That(result, Does.Contain("<records "));
+            Assert.That(result, Does.Contain("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""));
+            Assert.That(result, Does.Contain("xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""));
+            Assert.That(result.Contains("lang="), Is.EqualTo(recordSet.Lang != null));
+            Assert.That(result.Contains("<metadata"), Is.EqualTo(recordSet.Metadata != null));
+            Assert.That(result.Contains("<record "), Is.EqualTo(recordSet.AnyRecords()));
+            result.ShouldContain(recordSet as HypermediaEnabledData);
+        }
+
         public static void ShouldContain(this string result, FieldValueDescriptor fieldValueDescriptor)
         {
             Assert.That(result, Does.Contain("<FieldValueDescriptor "));

Gedcomx.Model/RecordSet.cs

@@ -1,10 +1,10 @@
-// <auto-generated>
+// <auto-generated>
 // 
 //
 // Generated by <a href="http://enunciate.codehaus.org">Enunciate</a>.
 // </auto-generated>
 using System;
-using System.Collections.Generic;
+using System.Linq;
 
 namespace Gx.Records
 {
@@ -65,13 +65,18 @@ public System.Collections.Generic.List<Gx.Gedcomx> Records
         {
             get
             {
-                return this._records;
+                return this._records ?? (_records = new System.Collections.Generic.List<Gx.Gedcomx>());
             }
             set
             {
                 this._records = value;
             }
         }
+        public bool ShouldSerializeRecords() => AnyRecords();
+        public bool AnyRecords()
+        {
+            return _records?.Any() ?? false;
+        }
 
         /**
          * Build out this record set with a lang.
@@ -103,11 +108,7 @@ public RecordSet SetMetadata(Gedcomx metadata)
          */
         public RecordSet SetRecord(Gedcomx record)
         {
-            if (this._records == null)
-            {
-                this._records = new List<Gedcomx>();
-            }
-            this._records.Add(record);
+            Records.Add(record);
             return this;
         }
     }