Ensure enums serialize as expected using defaults

Author: eiriktsarpalis

tests/ModelContextProtocol.Tests/Protocol/ProtocolTypeTests.cs

@@ -56,9 +56,9 @@ public static void ToolInputSchema_AcceptsValidSchemaDocuments(string validSchem
     [Theory]
     [InlineData(Role.User, "\"user\"")]
     [InlineData(Role.Assistant, "\"assistant\"")]
-    public static void SerializeRole_Should_Be_Lower_Case(Role role, string expectedValue)
+    public static void SerializeRole_ShouldBeCamelCased(Role role, string expectedValue)
     {
-        var actualValue = JsonSerializer.Serialize(role, McpJsonUtilities.DefaultOptions);
+        var actualValue = JsonSerializer.Serialize(role);
 
         Assert.Equal(expectedValue, actualValue);
     }
@@ -72,9 +72,20 @@ public static void SerializeRole_Should_Be_Lower_Case(Role role, string expected
     [InlineData(LoggingLevel.Critical, "\"critical\"")]
     [InlineData(LoggingLevel.Alert, "\"alert\"")]
     [InlineData(LoggingLevel.Emergency, "\"emergency\"")]
-    public static void SerializeLoggingLevel_Should_Be_Lower_Case(LoggingLevel level, string expectedValue)
+    public static void SerializeLoggingLevel_ShouldBeCamelCased(LoggingLevel level, string expectedValue)
     {
-        var actualValue = JsonSerializer.Serialize(level, McpJsonUtilities.DefaultOptions);
+        var actualValue = JsonSerializer.Serialize(level);
+
+        Assert.Equal(expectedValue, actualValue);
+    }
+
+    [Theory]
+    [InlineData(ContextInclusion.None, "\"none\"")]
+    [InlineData(ContextInclusion.ThisServer, "\"thisServer\"")]
+    [InlineData(ContextInclusion.AllServers, "\"allServers\"")]
+    public static void ContextInclusion_ShouldBeCamelCased(ContextInclusion level, string expectedValue)
+    {
+        var actualValue = JsonSerializer.Serialize(level);
 
         Assert.Equal(expectedValue, actualValue);
     }