diff --git a/src/Microsoft.Extensions.Logging.Testing/NullLogger.cs b/src/Microsoft.Extensions.Logging.Testing/NullLogger.cs
deleted file mode 100644
index 8b436ea0..00000000
--- a/src/Microsoft.Extensions.Logging.Testing/NullLogger.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.Extensions.Logging.Testing
-{
-    public class NullLogger : ILogger
-    {
-        public static readonly NullLogger Instance = new NullLogger();
-
-        public IDisposable BeginScope<TState>(TState state)
-        {
-            return NullDisposable.Instance;
-        }
-
-        public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
-        {
-        }
-
-        public bool IsEnabled(LogLevel logLevel)
-        {
-            return false;
-        }
-
-        private class NullDisposable : IDisposable
-        {
-            public static readonly NullDisposable Instance = new NullDisposable();
-
-            public void Dispose()
-            {
-                // intentionally does nothing
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.Extensions.Logging.Testing/NullLoggerFactory.cs b/src/Microsoft.Extensions.Logging.Testing/NullLoggerFactory.cs
deleted file mode 100644
index d227a383..00000000
--- a/src/Microsoft.Extensions.Logging.Testing/NullLoggerFactory.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-namespace Microsoft.Extensions.Logging.Testing
-{
-    public class NullLoggerFactory : ILoggerFactory
-    {
-        public static readonly NullLoggerFactory Instance = new NullLoggerFactory();
-
-        public ILogger CreateLogger(string name)
-        {
-            return NullLogger.Instance;
-        }
-
-        public void AddProvider(ILoggerProvider provider)
-        {
-        }
-
-        public void Dispose()
-        {
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.Extensions.Logging.Testing/NullLoggerOfT.cs b/src/Microsoft.Extensions.Logging.Testing/NullLoggerOfT.cs
deleted file mode 100644
index 42b97bb2..00000000
--- a/src/Microsoft.Extensions.Logging.Testing/NullLoggerOfT.cs
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.Extensions.Logging.Testing
-{
-    public class NullLogger<T> : ILogger<T>
-    {
-        public static readonly NullLogger<T> Instance = new NullLogger<T>();
-
-        public IDisposable BeginScope<TState>(TState state)
-        {
-            return NullDisposable.Instance;
-        }
-
-        public void Log<TState>(
-            LogLevel logLevel,
-            EventId eventId,
-            TState state,
-            Exception exception,
-            Func<TState, Exception, string> formatter)
-        {
-        }
-
-        public bool IsEnabled(LogLevel logLevel)
-        {
-            return false;
-        }
-
-        private class NullDisposable : IDisposable
-        {
-            public static readonly NullDisposable Instance = new NullDisposable();
-
-            public void Dispose()
-            {
-                // intentionally does nothing
-            }
-        }
-    }
-}
diff --git a/test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerFactoryTest.cs b/test/Microsoft.Extensions.Logging.Test/NullLoggerFactoryTest.cs
similarity index 91%
rename from test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerFactoryTest.cs
rename to test/Microsoft.Extensions.Logging.Test/NullLoggerFactoryTest.cs
index 592cb1a6..b8f83d7d 100644
--- a/test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerFactoryTest.cs
+++ b/test/Microsoft.Extensions.Logging.Test/NullLoggerFactoryTest.cs
@@ -3,7 +3,7 @@
 
 using Xunit;
 
-namespace Microsoft.Extensions.Logging.Testing
+namespace Microsoft.Extensions.Logging.Abstractions
 {
     public class NullLoggerFactoryTest
     {
diff --git a/test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerTest.cs b/test/Microsoft.Extensions.Logging.Test/NullLoggerTest.cs
similarity index 96%
rename from test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerTest.cs
rename to test/Microsoft.Extensions.Logging.Test/NullLoggerTest.cs
index 61d5cf09..ae5bbfb8 100644
--- a/test/Microsoft.Extensions.Logging.Testing.Tests/NullLoggerTest.cs
+++ b/test/Microsoft.Extensions.Logging.Test/NullLoggerTest.cs
@@ -3,7 +3,7 @@
 
 using Xunit;
 
-namespace Microsoft.Extensions.Logging.Testing
+namespace Microsoft.Extensions.Logging.Abstractions
 {
     public class NullLoggerTest
     {