Simplify delegate invocation

Author: cnblogs-dudu

Enyim.Caching.Tests/MemcachedClientTestsBase.cs

@@ -1,15 +1,15 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using Enyim.Caching.Configuration;
-using Enyim.Caching.Memcached.Results;
+using Enyim.Caching.Configuration;
 using Enyim.Caching.Memcached;
-using Xunit;
-using Microsoft.Extensions.DependencyInjection;
+using Enyim.Caching.Memcached.Results;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 using System.Threading.Tasks;
+using Xunit;
 
 namespace Enyim.Caching.Tests
 {
@@ -23,10 +23,7 @@ public MemcachedClientTestsBase(Action<MemcachedClientOptions> onAddEnyimMemcach
             services.AddEnyimMemcached(options =>
             {
                 options.AddServer("memcached", 11211);
-                if (onAddEnyimMemcached != null)
-                {
-                    onAddEnyimMemcached(options);
-                }
+                onAddEnyimMemcached?.Invoke(options);
             });
 
             services.AddLogging(builder => builder.SetMinimumLevel(LogLevel.Debug).AddConsole());

Enyim.Caching.Tests/MemcachedClientWithKeyTransformerTests.cs

@@ -1,25 +1,18 @@
-using System;
+using Enyim.Caching.Configuration;
+using Enyim.Caching.Memcached;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
-using Enyim.Caching.Configuration;
-using Enyim.Caching.Memcached;
 using Xunit;
 
 namespace Enyim.Caching.Tests
 {
     public class MemcachedClientWithKeyTransformerTests : MemcachedClientTestsBase
     {
-        public MemcachedClientWithKeyTransformerTests(Action<MemcachedClientOptions> onAddEnyimMemcached = null)
-            : base(options =>
-                    {
-                        options.KeyTransformer = "Enyim.Caching.Memcached.TigerHashKeyTransformer";
-                        if (onAddEnyimMemcached != null)
-                        {
-                            onAddEnyimMemcached(options);
-                        }
-                    })
+        public MemcachedClientWithKeyTransformerTests()
+            : base(options => options.KeyTransformer = "Enyim.Caching.Memcached.TigerHashKeyTransformer")
         {
         }