Use ScriptProcessorDescriptor in the fluent API (#2422)

Author: russcam

src/Nest/Ingest/ProcessorsDescriptor.cs

@@ -84,8 +84,8 @@ public ProcessorsDescriptor Rename<T>(Func<RenameProcessorDescriptor<T>, IRename
 		/// <summary>
 		/// Allows inline, stored, and file scripts to be executed within ingest pipelines.
 		/// </summary>
-		public ProcessorsDescriptor Script(Func<ScriptProcessor, IScriptProcessor> selector) =>
-			Assign(a => a.AddIfNotNull(selector?.Invoke(new ScriptProcessor())));
+		public ProcessorsDescriptor Script(Func<ScriptProcessorDescriptor, IScriptProcessor> selector) =>
+			Assign(a => a.AddIfNotNull(selector?.Invoke(new ScriptProcessorDescriptor())));
 
 		public ProcessorsDescriptor Set<T>(Func<SetProcessorDescriptor<T>, ISetProcessor> selector) where T : class  =>
 			Assign(a => a.AddIfNotNull(selector?.Invoke(new SetProcessorDescriptor<T>())));

src/Tests/Ingest/PutPipeline/PutPipelineApiTests.cs

@@ -163,6 +163,20 @@ protected override LazyResponses ClientUsage() => Calls(
 					{
 						field = "name"
 					}
+				},
+				new
+				{
+					dot_expander = new
+					{
+						field = "field.withDots"
+					}
+				},
+				new
+				{
+					script = new
+					{
+						inline = "ctx.numberOfCommits++"
+					}
 				}
 			}
 		};
@@ -239,6 +253,12 @@ protected override LazyResponses ClientUsage() => Calls(
 				.Uppercase<Project>(u => u
 					.Field(p => p.Name)
 				)
+				.DotExpander<Project>(de => de
+					.Field("field.withDots")
+				)
+				.Script(s => s
+					.Inline("ctx.numberOfCommits++")
+				)
 			);
 
 		protected override PutPipelineRequest Initializer => new PutPipelineRequest(_id)
@@ -327,6 +347,14 @@ protected override LazyResponses ClientUsage() => Calls(
 				new UppercaseProcessor
 				{
 					Field = "name"
+				},
+				new DotExpanderProcessor
+				{
+					Field = "field.withDots"
+				},
+				new ScriptProcessor
+				{
+					Inline = "ctx.numberOfCommits++"
 				}
 			}
 		};