Address PR comments

Author: jviau

src/WebJobs.Script/JsonSerializerOptionsProvider.cs

@@ -12,7 +12,10 @@ namespace Microsoft.Azure.WebJobs.Script
     public static class JsonSerializerOptionsProvider
     {
         /// <summary>
-        /// Gets the default JSON serializer options used across the functions host.
+        /// Shared Json serializer with the following settings:
+        /// - AllowTrailingCommas: true
+        /// - PropertyNamingPolicy: CamelCase
+        /// - DefaultIgnoreCondition: WhenWritingNull.
         /// </summary>
         public static readonly JsonSerializerOptions Options = CreateJsonOptions();
 

test/WebJobs.Script.Tests/Diagnostics/HealthChecks/HealthCheckResponseWriterTests.cs

@@ -4,11 +4,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Text.Json;
 using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using FluentAssertions;
-using HealthChecks.UI.Client;
 using HealthChecks.UI.Core;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.HealthChecks;