Fix test failures in Enyim.Caching.Tests

Author: cnblogs-dudu

Enyim.Caching.Tests/MemcachedClientTestsBase.cs

@@ -7,6 +7,7 @@
 using Enyim.Caching.Memcached;
 using Xunit;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Configuration;
 
 namespace Enyim.Caching.Tests
 {
@@ -17,6 +18,8 @@ public abstract class MemcachedClientTestsBase
         public MemcachedClientTestsBase()
         {
             IServiceCollection services = new ServiceCollection();
+            var configuration = new ConfigurationBuilder().Build();
+            services.AddSingleton<IConfiguration>(configuration);
             services.AddEnyimMemcached(options => options.AddServer("memcached", 11211));
             services.AddLogging();
             IServiceProvider serviceProvider = services.BuildServiceProvider();

MemcachedTest/MemcachedClientTest.cs

@@ -21,8 +21,6 @@ public abstract class MemcachedClientTest
 
         protected virtual MemcachedClient GetClient(MemcachedProtocol protocol = MemcachedProtocol.Binary, bool useBinaryFormatterTranscoder = false)
         {
-            var configuration = new ConfigurationBuilder().Build();
-
             IServiceCollection services = new ServiceCollection();
             services.AddEnyimMemcached(options =>
             {
@@ -38,6 +36,7 @@ protected virtual MemcachedClient GetClient(MemcachedProtocol protocol = Memcach
                 services.AddSingleton<ITranscoder, BinaryFormatterTranscoder>();
             }
 
+            var configuration = new ConfigurationBuilder().Build();
             services.AddSingleton<IConfiguration>(configuration);
             services.AddLogging(builder => builder.SetMinimumLevel(LogLevel.Error).AddConsole());