feat: Customize expansion and set maps on first boot (#1425)

Projects/Server.Tests/Tests/Maps/MapSelectionTests.cs

@@ -0,0 +1,50 @@
+using Xunit;
+using Server.Maps;
+using Server.Json;
+using System.Text.Json.Serialization;
+using System.Text.Json;
+
+namespace Server.Tests.Tests.Maps
+{
+    public class MapSelectionTests
+    {
+        [Theory]
+        [InlineData(MapSelectionFlags.Felucca, "Felucca")]
+        [InlineData(MapSelectionFlags.Felucca | MapSelectionFlags.Trammel, "Felucca, Trammel")]
+        public void TestCommaSeparatedList(MapSelectionFlags flags, string expected)
+        {
+            Assert.Equal(expected, flags.ToCommaDelimitedString());
+        }
+
+        [Fact]
+        public void TestFormatFeluccaOnlyMapSelection()
+        {
+            const MapSelectionFlags flags = MapSelectionFlags.Felucca;
+
+            // When, Then
+            Assert.Equal("Felucca", flags.ToCommaDelimitedString());
+        }
+
+        public class TestMapConfig
+        {
+            [JsonConverter(typeof(FlagsConverter<MapSelectionFlags>))]
+            public MapSelectionFlags TestMapFlags { get; set; }
+        }
+
+        [Fact]
+        public void TestSerializeAndDeserializeMapSelectionFlags()
+        {
+            TestMapConfig mapConfig = new()
+            {
+                TestMapFlags = MapSelectionFlags.Felucca | MapSelectionFlags.Ilshenar,
+            };
+
+            // When
+            string serialized = JsonConfig.Serialize(mapConfig);
+            TestMapConfig deserialized = JsonSerializer.Deserialize<TestMapConfig>(serialized, JsonConfig.GetOptions());
+
+            // Then
+            Assert.Equal(mapConfig.TestMapFlags, deserialized.TestMapFlags);
+        }
+    }
+}