Exclude System.Net.Sse from code coverage

src/Libraries/Microsoft.Extensions.AI.OpenAI/OpenAIModelMapper.ChatCompletion.cs

@@ -186,6 +186,16 @@ public static ChatOptions FromOpenAIOptions(OpenAI.Chat.ChatCompletionOptions? o
                 (result.AdditionalProperties ??= [])[nameof(options.TopLogProbabilityCount)] = topLogProbabilityCount;
             }
 
+            if (options.Metadata is IDictionary<string, string> { Count: > 0 } metadata)
+            {
+                (result.AdditionalProperties ??= [])[nameof(options.Metadata)] = metadata;
+            }
+
+            if (options.StoredOutputEnabled is bool storedOutputEnabled)
+            {
+                (result.AdditionalProperties ??= [])[nameof(options.StoredOutputEnabled)] = storedOutputEnabled;
+            }
+
             if (options.Tools is { Count: > 0 } tools)
             {
                 foreach (ChatTool tool in tools)
@@ -273,6 +283,19 @@ public static OpenAI.Chat.ChatCompletionOptions ToOpenAIOptions(ChatOptions? opt
                 {
                     result.TopLogProbabilityCount = topLogProbabilityCountInt;
                 }
+
+                if (additionalProperties.TryGetValue(nameof(result.Metadata), out IDictionary<string, string>? metadata))
+                {
+                    foreach (KeyValuePair<string, string> kvp in metadata)
+                    {
+                        result.Metadata[kvp.Key] = kvp.Value;
+                    }
+                }
+
+                if (additionalProperties.TryGetValue(nameof(result.StoredOutputEnabled), out bool storeOutputEnabled))
+                {
+                    result.StoredOutputEnabled = storeOutputEnabled;
+                }
             }
 
             if (options.Tools is { Count: > 0 } tools)

src/Shared/ServerSentEvents/ArrayBuffer.cs

@@ -25,6 +25,7 @@ namespace System.Net
     // Discard(byteCount) will discard [byteCount] bytes as the beginning of the ActiveSpan.
 
     [StructLayout(LayoutKind.Auto)]
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal struct ArrayBuffer : IDisposable
     {
         private readonly bool _usePool;

src/Shared/ServerSentEvents/Helpers.cs

@@ -24,6 +24,7 @@
 namespace System.Net.ServerSentEvents
 {
     [EditorBrowsable(EditorBrowsableState.Never)]
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal static class Helpers
     {
         public static void WriteUtf8Number(this IBufferWriter<byte> writer, long value)

src/Shared/ServerSentEvents/PooledByteBufferWriter.cs

@@ -7,6 +7,7 @@
 namespace System.Net.ServerSentEvents
 {
     [EditorBrowsable(EditorBrowsableState.Never)]
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal sealed class PooledByteBufferWriter : IBufferWriter<byte>, IDisposable
     {
         private const int MinimumBufferSize = 256;

src/Shared/ServerSentEvents/SseFormatter.cs

@@ -15,6 +15,7 @@ namespace System.Net.ServerSentEvents
     /// <summary>
     /// Provides methods for formatting server-sent events.
     /// </summary>
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal static class SseFormatter
     {
         private static readonly byte[] _newLine = "\n"u8.ToArray();

src/Shared/ServerSentEvents/SseItem.cs

@@ -10,6 +10,7 @@ namespace System.Net.ServerSentEvents
 {
     /// <summary>Represents a server-sent event.</summary>
     /// <typeparam name="T">Specifies the type of data payload in the event.</typeparam>
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal readonly struct SseItem<T>
     {
         /// <summary>The event's type.</summary>

src/Shared/ServerSentEvents/SseParser.cs

@@ -9,6 +9,7 @@
 namespace System.Net.ServerSentEvents
 {
     /// <summary>Provides a parser for parsing server-sent events.</summary>
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal static class SseParser
     {
         /// <summary>The default <see cref="SseItem{T}.EventType"/> ("message") for an event that did not explicitly specify a type.</summary>

src/Shared/ServerSentEvents/SseParser_1.cs

@@ -30,6 +30,7 @@ namespace System.Net.ServerSentEvents
 {
     /// <summary>Provides a parser for server-sent events information.</summary>
     /// <typeparam name="T">Specifies the type of data parsed from an event.</typeparam>
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal sealed class SseParser<T>
     {
         // For reference:

src/Shared/ServerSentEvents/ThrowHelper.cs

@@ -7,6 +7,7 @@
 
 namespace System.Net.ServerSentEvents
 {
+    [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
     internal static class ThrowHelper
     {
         [DoesNotReturn]