diff --git a/tests/Unleash.Tests/IOTests.cs b/tests/Unleash.Tests/IOTests.cs
deleted file mode 100644
index dff81a7..0000000
--- a/tests/Unleash.Tests/IOTests.cs
+++ /dev/null
@@ -1,43 +0,0 @@
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using FluentAssertions;
-using NUnit.Framework;
-using Unleash.ClientFactory;
-
-namespace Unleash.Tests
-{
-
-    public class IOTests
-    {
-        private IUnleash unleash;
-
-        private static void LockFile(object data)
-        {
-            var file = (string)data;
-            using (var fs = File.Open(file, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None))
-            {
-                Task.Delay(10000).Wait();
-            }
-        }
-
-        [Test]
-        public async Task GracefullyFailsWhenFileLocked()
-        {
-            var settings = new MockedUnleashSettings(false, "test instance IOTests");
-
-            var toggleFile = settings.GetFeatureToggleFilePath();
-            var eTagFile = settings.GetFeatureToggleETagFilePath();
-
-            Thread lockToggleFile = new Thread(LockFile);
-            Thread lockETagFile = new Thread(LockFile);
-            lockToggleFile.Start(toggleFile);
-            lockETagFile.Start(eTagFile);
-
-            var factory = new UnleashClientFactory();
-            unleash = await factory.CreateClientAsync(settings, true);
-
-            unleash.IsEnabled("one-enabled").Should().BeTrue();
-        }
-    }
-}
\ No newline at end of file