Fix tests

VigilCare.WardGateway/Domain/Json/DbStringEnumJson.cs

@@ -0,0 +1,39 @@
+using System.Text.Json;
+
+/// <summary>
+/// Shared read helper for converters that write DB-wire strings (e.g. "ICU")
+/// but must also accept default System.Text.Json client payloads (numeric enums)
+/// and PascalCase enum names.
+/// </summary>
+internal static class DbStringEnumJson
+{
+    public static TEnum Read<TEnum>(ref Utf8JsonReader reader, Func<string, TEnum> fromDbString)
+        where TEnum : struct, Enum
+    {
+        switch (reader.TokenType)
+        {
+            case JsonTokenType.Number:
+                if (reader.TryGetInt32(out var numeric)
+                    && Enum.IsDefined(typeof(TEnum), numeric))
+                    return (TEnum)Enum.ToObject(typeof(TEnum), numeric);
+                throw new JsonException($"Invalid numeric value for {typeof(TEnum).Name}.");
+
+            case JsonTokenType.String:
+                var raw = reader.GetString()
+                    ?? throw new JsonException($"Null string for {typeof(TEnum).Name}.");
+                try
+                {
+                    return fromDbString(raw);
+                }
+                catch (ArgumentOutOfRangeException) when (
+                    Enum.TryParse(raw, ignoreCase: true, out TEnum byName))
+                {
+                    return byName;
+                }
+
+            default:
+                throw new JsonException(
+                    $"Unexpected token {reader.TokenType} when parsing {typeof(TEnum).Name}.");
+        }
+    }
+}

VigilCare.WardGateway/Domain/Json/DepartmentJsonConverter.cs

@@ -4,7 +4,7 @@ using System.Text.Json.Serialization;
 public sealed class DepartmentJsonConverter : JsonConverter<Department>
 {
     public override Department Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        => DepartmentExtensions.FromDbString(reader.GetString()!);
+        => DbStringEnumJson.Read(ref reader, DepartmentExtensions.FromDbString);
 
     public override void Write(Utf8JsonWriter writer, Department value, JsonSerializerOptions options)
         => writer.WriteStringValue(value.ToDbString());