fix: add cancellation token parameter to SerializeAsJsonAsync settings overload

Author: Mahdigln

src/Microsoft.OpenApi/Extensions/OpenApiSerializableExtensions.cs

@@ -37,10 +37,11 @@ public static Task SerializeAsJsonAsync<T>(this T element, Stream stream, OpenAp
         /// <param name="stream">The output stream.</param>
         /// <param name="specVersion">The Open API specification version.</param>
         /// <param name="settings">Settings controlling JSON output, including <see cref="OpenApiJsonWriterSettings.Terse"/> for compact formatting.</param>
-        public static Task SerializeAsJsonAsync<T>(this T element, Stream stream, OpenApiSpecVersion specVersion, OpenApiJsonWriterSettings settings)
+        /// <param name="cancellationToken">The cancellation token.</param>
+        public static Task SerializeAsJsonAsync<T>(this T element, Stream stream, OpenApiSpecVersion specVersion, OpenApiJsonWriterSettings settings, CancellationToken cancellationToken)
             where T : IOpenApiSerializable
         {
-            return element.SerializeAsync(stream, specVersion, OpenApiConstants.Json, settings, CancellationToken.None);
+            return element.SerializeAsync(stream, specVersion, OpenApiConstants.Json, settings, cancellationToken);
         }
 
         /// <summary>

src/Microsoft.OpenApi/PublicAPI.Unshipped.txt

@@ -2,5 +2,5 @@
 const Microsoft.OpenApi.OpenApiConstants.JsonSchemaExamplesExtension = "x-jsonschema-examples" -> string!
 const Microsoft.OpenApi.OpenApiConstants.OaiLicenseIdentifier = "x-oai-license-identifier" -> string!
 static Microsoft.OpenApi.OpenApiSerializableExtensions.SerializeAsJsonAsync<T>(this T element, Microsoft.OpenApi.OpenApiSpecVersion specVersion, Microsoft.OpenApi.OpenApiJsonWriterSettings! settings) -> System.Threading.Tasks.Task<string!>!
-static Microsoft.OpenApi.OpenApiSerializableExtensions.SerializeAsJsonAsync<T>(this T element, System.IO.Stream! stream, Microsoft.OpenApi.OpenApiSpecVersion specVersion, Microsoft.OpenApi.OpenApiJsonWriterSettings! settings) -> System.Threading.Tasks.Task!
+static Microsoft.OpenApi.OpenApiSerializableExtensions.SerializeAsJsonAsync<T>(this T element, System.IO.Stream! stream, Microsoft.OpenApi.OpenApiSpecVersion specVersion, Microsoft.OpenApi.OpenApiJsonWriterSettings! settings, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task!
 static Microsoft.OpenApi.OpenApiSerializableExtensions.SerializeAsync<T>(this T element, Microsoft.OpenApi.OpenApiSpecVersion specVersion, string! format, Microsoft.OpenApi.OpenApiWriterSettings? settings) -> System.Threading.Tasks.Task<string!>!

test/Microsoft.OpenApi.Tests/Extensions/OpenApiSerializableExtensionsTests.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Threading;
 using System.Threading.Tasks;
 using Xunit;
 
@@ -104,7 +105,7 @@ public async Task SerializeAsJsonAsync_WithTerseSettings_WritesToStream()
         var settings = new OpenApiJsonWriterSettings { Terse = true };
 
         using var stream = new MemoryStream();
-        await parameter.SerializeAsJsonAsync(stream, OpenApiSpecVersion.OpenApi3_1, settings);
+        await parameter.SerializeAsJsonAsync(stream, OpenApiSpecVersion.OpenApi3_1, settings, CancellationToken.None);
 
         stream.Position = 0;
         using var reader = new StreamReader(stream);