[Backport 8.2] Make ElasticsearchClient more mockable

Directory.Build.targets

@@ -6,7 +6,8 @@
   </PropertyGroup>
   <PropertyGroup Condition="$(IsPackable) == True">
     <OutDir>bin/$(Configuration)/$(TargetFramework)/</OutDir>
-    <NoWarn>1591,1572,1571,1573,1587,1570,NU5048,</NoWarn>
+    <NoWarn>1591,1572,1571,1573,1587,1570,NU5048</NoWarn>
+    <CheckEolTargetFramework>false</CheckEolTargetFramework>
     <Prefer32Bit>false</Prefer32Bit>
     <DebugSymbols>true</DebugSymbols>
 

src/Elastic.Clients.Elasticsearch/Client/ElasticsearchClient-BulkAll.cs

@@ -10,13 +10,13 @@ namespace Elastic.Clients.Elasticsearch;
 
 public partial class ElasticsearchClient
 {
-	public BulkAllObservable<T> BulkAll<T>(IEnumerable<T> documents, Action<BulkAllRequestDescriptor<T>> configure, CancellationToken cancellationToken = default)
+	public virtual BulkAllObservable<T> BulkAll<T>(IEnumerable<T> documents, Action<BulkAllRequestDescriptor<T>> configure, CancellationToken cancellationToken = default)
     {
         var descriptor = new BulkAllRequestDescriptor<T>(documents);
         configure?.Invoke(descriptor);
         return BulkAll<T>(descriptor, cancellationToken);
     }
 
-    public BulkAllObservable<T> BulkAll<T>(IBulkAllRequest<T> request, CancellationToken cancellationToken = default) =>
+    public virtual BulkAllObservable<T> BulkAll<T>(IBulkAllRequest<T> request, CancellationToken cancellationToken = default) =>
         new(this, request, cancellationToken);
 }

src/Elastic.Clients.Elasticsearch/Client/ElasticsearchClient-Manual.cs

@@ -10,26 +10,26 @@ namespace Elastic.Clients.Elasticsearch;
 
 public partial class ElasticsearchClient
 {
-	public Task<UpdateResponse<TDocument>> UpdateAsync<TDocument, TPartialDocument>(IndexName index, Id id, CancellationToken cancellationToken = default)
+	public virtual Task<UpdateResponse<TDocument>> UpdateAsync<TDocument, TPartialDocument>(IndexName index, Id id, CancellationToken cancellationToken = default)
 	{
 		var descriptor = new UpdateRequestDescriptor<TDocument, TPartialDocument>(index, id);
-		return DoRequestAsync<UpdateRequestDescriptor<TDocument, TPartialDocument>, UpdateResponse<TDocument>, UpdateRequestParameters>(descriptor);
+		return DoRequestAsync<UpdateRequestDescriptor<TDocument, TPartialDocument>, UpdateResponse<TDocument>, UpdateRequestParameters>(descriptor, cancellationToken);
 	}
 
-	public Task<UpdateResponse<TDocument>> UpdateAsync<TDocument, TPartialDocument>(IndexName index, Id id, Action<UpdateRequestDescriptor<TDocument, TPartialDocument>> configureRequest, CancellationToken cancellationToken = default)
+	public virtual Task<UpdateResponse<TDocument>> UpdateAsync<TDocument, TPartialDocument>(IndexName index, Id id, Action<UpdateRequestDescriptor<TDocument, TPartialDocument>> configureRequest, CancellationToken cancellationToken = default)
 	{
 		var descriptor = new UpdateRequestDescriptor<TDocument, TPartialDocument>(index, id);
 		configureRequest?.Invoke(descriptor);
-		return DoRequestAsync<UpdateRequestDescriptor<TDocument, TPartialDocument>, UpdateResponse<TDocument>, UpdateRequestParameters>(descriptor);
+		return DoRequestAsync<UpdateRequestDescriptor<TDocument, TPartialDocument>, UpdateResponse<TDocument>, UpdateRequestParameters>(descriptor, cancellationToken);
 	}
 
-	public UpdateResponse<TDocument> Update<TDocument, TPartialDocument>(IndexName index, Id id)
+	public virtual UpdateResponse<TDocument> Update<TDocument, TPartialDocument>(IndexName index, Id id)
 	{
 		var descriptor = new UpdateRequestDescriptor<TDocument, TPartialDocument>(index, id);
 		return DoRequest<UpdateRequestDescriptor<TDocument, TPartialDocument>, UpdateResponse<TDocument>, UpdateRequestParameters>(descriptor);
 	}
 
-	public UpdateResponse<TDocument> Update<TDocument, TPartialDocument>(IndexName index, Id id, Action<UpdateRequestDescriptor<TDocument, TPartialDocument>> configureRequest)
+	public virtual UpdateResponse<TDocument> Update<TDocument, TPartialDocument>(IndexName index, Id id, Action<UpdateRequestDescriptor<TDocument, TPartialDocument>> configureRequest)
 	{
 		var descriptor = new UpdateRequestDescriptor<TDocument, TPartialDocument>(index, id);
 		configureRequest?.Invoke(descriptor);

src/Elastic.Clients.Elasticsearch/Client/ElasticsearchClient.cs

@@ -8,40 +8,39 @@
 using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
-using Elastic.Clients.Elasticsearch.IndexManagement;
 using Elastic.Clients.Elasticsearch.Requests;
 using Elastic.Transport;
 using Elastic.Transport.Products.Elasticsearch;
 
 namespace Elastic.Clients.Elasticsearch;
 
-/// <inheritdoc />
-public sealed partial class ElasticsearchClient
+/// <summary>
+/// A strongly-typed client for communicating with Elasticsearch server endpoints.
+/// </summary>
+public partial class ElasticsearchClient
 {
 	private readonly HttpTransport<IElasticsearchClientSettings> _transport;
 
 	internal static ConditionalWeakTable<JsonSerializerOptions, IElasticsearchClientSettings> SettingsTable { get; } = new();
 
 	/// <summary>
-	///     Creates a client configured to connect to localhost:9200.
+	/// Creates a client configured to connect to http://localhost:9200.
 	/// </summary>
 	public ElasticsearchClient() : this(new ElasticsearchClientSettings(new Uri("http://localhost:9200"))) { }
 
 	/// <summary>
-	///     Creates a client configured to connect to a node reachable at the provided <paramref name="uri" />.
+	/// Creates a client configured to connect to a node reachable at the provided <paramref name="uri" />.
 	/// </summary>
 	/// <param name="uri">The <see cref="Uri" /> to connect to.</param>
 	public ElasticsearchClient(Uri uri) : this(new ElasticsearchClientSettings(uri)) { }
 
 	/// <summary>
-	///     Creates a client configured to communicate with Elastic Cloud using the provided <paramref name="cloudId" />.
-	///     <para>See the <see cref="CloudNodePool" /> documentation for more information on how to obtain your Cloud Id.</para>
-	///     <para>
-	///         If you want more control, use the <see cref="ElasticsearchClient(IElasticsearchClientSettings)" /> constructor and
-	///         pass
-	///         an instance of
-	///         <see cref="ElasticsearchClientSettings" /> that takes a <paramref name="cloudId" /> in its constructor as well.
-	///     </para>
+	/// Creates a client configured to communicate with Elastic Cloud using the provided <paramref name="cloudId" />.
+	/// <para>See the <see cref="CloudNodePool" /> documentation for more information on how to obtain your Cloud Id.</para>
+	///   <para>
+	///     If you want more control, use the <see cref="ElasticsearchClient(IElasticsearchClientSettings)" /> constructor and
+	///     pass an instance of <see cref="ElasticsearchClientSettings" /> that takes a <paramref name="cloudId" /> in its constructor as well.
+	///   </para>
 	/// </summary>
 	/// <param name="cloudId">The Cloud ID of an Elastic Cloud deployment.</param>
 	/// <param name="credentials">The credentials to use for the connection.</param>
@@ -51,19 +50,15 @@ public ElasticsearchClient(string cloudId, AuthorizationHeader credentials) : th
 	}
 
 	/// <summary>
-	///     TODO
+	/// Creates a client using the provided configuration to initialise the client.
 	/// </summary>
-	/// <param name="elasticsearchClientSettings"></param>
+	/// <param name="elasticsearchClientSettings">The <see cref="IElasticsearchClientSettings"/> used to configure the client.</param>
 	public ElasticsearchClient(IElasticsearchClientSettings elasticsearchClientSettings)
 		: this(new DefaultHttpTransport<IElasticsearchClientSettings>(elasticsearchClientSettings))
 	{
 	}
 
-	/// <summary>
-	///     TODO
-	/// </summary>
-	/// <param name="transport"></param>
-	public ElasticsearchClient(HttpTransport<IElasticsearchClientSettings> transport)
+	internal ElasticsearchClient(HttpTransport<IElasticsearchClientSettings> transport)
 	{
 		transport.ThrowIfNull(nameof(transport));
 		transport.Settings.ThrowIfNull(nameof(transport.Settings));

src/Elastic.Clients.Elasticsearch/Client/IndicesNamespace.cs

@@ -7,7 +7,7 @@
 
 namespace Elastic.Clients.Elasticsearch.IndexManagement;
 
-public partial class IndicesNamespace
+public partial class IndicesNamespacedClient
 {
 	/// <summary>
 	/// Refresh one or more indices. A refresh makes recent operations performed on one or more indices available for search. For data streams,

src/Elastic.Clients.Elasticsearch/Client/NamespacedClientProxy.cs

@@ -11,14 +11,17 @@
 
 namespace Elastic.Clients.Elasticsearch;
 
-/// <summary>
-/// </summary>
-/// <remarks>
-///     Not intended to be used directly.
-/// </remarks>
 public abstract class NamespacedClientProxy
 {
+	private const string InvalidOperation = "The client has not been initialised for proper usage as may have been partially mocked. Ensure you are using a " +
+		"new instance of ElasticsearchClient to perform requests over a network to Elasticsearch.";
+
 	private readonly ElasticsearchClient _client;
+
+	/// <summary>
+	/// Initializes a new instance for mocking.
+	/// </summary>
+	protected NamespacedClientProxy() { }
 
 	internal NamespacedClientProxy(ElasticsearchClient client) => _client = client;
 
@@ -28,33 +31,53 @@ internal TResponse DoRequest<TRequest, TResponse, TRequestParameters>(
 		Action<IRequestConfiguration>? forceConfiguration = null)
 		where TRequest : Request<TRequestParameters>
 		where TResponse : ElasticsearchResponse, new()
-		where TRequestParameters : RequestParameters, new() =>
-			_client.DoRequest<TRequest, TResponse, TRequestParameters>(request, parameters, forceConfiguration);
+		where TRequestParameters : RequestParameters, new()
+	{
+		if (_client is null)
+			ThrowHelper.ThrowInvalidOperationException(InvalidOperation);
+
+		return _client.DoRequest<TRequest, TResponse, TRequestParameters>(request, parameters, forceConfiguration);
+	}
 
 	internal TResponse DoRequest<TRequest, TResponse, TRequestParameters>(
 		TRequest request,
 		Action<IRequestConfiguration>? forceConfiguration = null)
 		where TRequest : Request<TRequestParameters>
 		where TResponse : ElasticsearchResponse, new()
-		where TRequestParameters : RequestParameters, new() =>
-			_client.DoRequest<TRequest, TResponse, TRequestParameters>(request, forceConfiguration);
+		where TRequestParameters : RequestParameters, new()
+	{
+		if (_client is null)
+			ThrowHelper.ThrowInvalidOperationException(InvalidOperation);
+
+		return _client.DoRequest<TRequest, TResponse, TRequestParameters>(request, forceConfiguration);
+	}
 
 	internal Task<TResponse> DoRequestAsync<TRequest, TResponse, TRequestParameters>(
 		TRequest request,
-		TRequestParameters parameters,
 		CancellationToken cancellationToken = default)
 		where TRequest : Request<TRequestParameters>
 		where TResponse : ElasticsearchResponse, new()
-		where TRequestParameters : RequestParameters, new() =>
-			_client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, parameters, cancellationToken: cancellationToken);
+		where TRequestParameters : RequestParameters, new()
+	{
+		if (_client is null)
+			ThrowHelper.ThrowInvalidOperationException(InvalidOperation);
+
+		return _client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, cancellationToken: cancellationToken);
+	}
 
 	internal Task<TResponse> DoRequestAsync<TRequest, TResponse, TRequestParameters>(
 		TRequest request,
+		TRequestParameters parameters,
 		CancellationToken cancellationToken = default)
 		where TRequest : Request<TRequestParameters>
 		where TResponse : ElasticsearchResponse, new()
-		where TRequestParameters : RequestParameters, new() =>
-			_client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, cancellationToken: cancellationToken);
+		where TRequestParameters : RequestParameters, new()
+	{
+		if (_client is null)
+			ThrowHelper.ThrowInvalidOperationException(InvalidOperation);
+
+		return _client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, parameters, cancellationToken: cancellationToken);
+	}
 
 	internal Task<TResponse> DoRequestAsync<TRequest, TResponse, TRequestParameters>(
 		TRequest request,
@@ -63,6 +86,11 @@ internal Task<TResponse> DoRequestAsync<TRequest, TResponse, TRequestParameters>
 		CancellationToken cancellationToken = default)
 		where TRequest : Request<TRequestParameters>
 		where TResponse : ElasticsearchResponse, new()
-		where TRequestParameters : RequestParameters, new() =>
-			_client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, parameters, forceConfiguration, cancellationToken);
+		where TRequestParameters : RequestParameters, new()
+	{
+		if (_client is null)
+			ThrowHelper.ThrowInvalidOperationException(InvalidOperation);
+
+		return _client.DoRequestAsync<TRequest, TResponse, TRequestParameters>(request, parameters, forceConfiguration, cancellationToken);
+	}
 }

src/Elastic.Clients.Elasticsearch/Core/Exceptions/ThrowHelper.cs

@@ -18,5 +18,11 @@ internal static void ThrowUnknownTaggedUnionVariantJsonException(string variantT
 		throw new JsonException($"Encounted an unsupported variant tag '{variantTag}' on '{SimplifiedFullName(interfaceType)}', which could not be deserialised.");
 
 	[MethodImpl(MethodImplOptions.NoInlining)]
+	internal static void ThrowInvalidOperationException(string message) =>
+		throw new InvalidOperationException(message);
+
+	[MethodImpl(MethodImplOptions.NoInlining)]
+#pragma warning disable IDE0057 // Use range operator
 	private static string SimplifiedFullName(Type type) => type.FullName.Substring(30);
+#pragma warning restore IDE0057 // Use range operator
 }