responding to interface break

test/Microsoft.AspNet.Mvc.Core.Test/Logging/NullLoggerFactory.cs

@@ -9,6 +9,8 @@ namespace Microsoft.AspNet.Mvc
     {
         public static NullLoggerFactory Instance = new NullLoggerFactory();
 
+        public LogLevel MinimumLevel { get; set; }
+
         public ILogger Create(string name)
         {
             return NullLogger.Instance;

test/Microsoft.AspNet.Mvc.Core.Test/Logging/TestLoggerFactory.cs

@@ -14,6 +14,8 @@ namespace Microsoft.AspNet.Mvc
             _sink = sink;
         }
 
+        public LogLevel MinimumLevel { get; set; }
+
         public ILogger Create(string name)
         {
             return new TestLogger(name, _sink);

test/Microsoft.AspNet.Mvc.FunctionalTests/NullLoggerFactory.cs

@@ -8,6 +8,8 @@ namespace Microsoft.AspNet.Mvc
 {
     public class NullLoggerFactory : ILoggerFactory
     {
+        public LogLevel MinimumLevel { get; set; }
+
         public static NullLoggerFactory Instance = new NullLoggerFactory();
 
         public ILogger Create(string name)

test/Microsoft.AspNet.Mvc.FunctionalTests/TagHelperSampleTest.cs

@@ -62,6 +62,8 @@ namespace Microsoft.AspNet.Mvc.FunctionalTests
         
         private class TestLoggerFactory : ILoggerFactory
         {
+            public LogLevel MinimumLevel { get; set; }
+
             public void AddProvider(ILoggerProvider provider)
             {