Fix tests :)

src/MonkeyCache.LiteDB/Barrel.cs

@@ -33,8 +33,15 @@ public class Barrel : IBarrel
 		/// </summary>
 		public static IBarrel Current => (instance ?? (instance = new Barrel()));
 
-		public static IBarrel Create(string cacheDirectory)
-			=> new Barrel(cacheDirectory);
+		public static IBarrel Create(string cacheDirectory, bool cache = false)
+		{
+			if (!cache)
+				return new Barrel(cacheDirectory);
+
+			if(instance == null)
+				instance = new Barrel(cacheDirectory);
+			return instance;
+		}
 
 		readonly JsonSerializerSettings jsonSettings;
 		Barrel(string cacheDirectory = null)
@@ -259,14 +266,17 @@ public void Add<T>(string key, T data, TimeSpan expireIn, string eTag = null, Js
 			Add(key, dataJson, expireIn, eTag);
 		}
 
-#endregion
+		#endregion
 
-#region Empty Methods
+		#region Empty Methods
 		/// <summary>
 		/// Empties all expired entries that are in the Barrel.
 		/// Throws an exception if any deletions fail and rolls back changes.
 		/// </summary>
-		public void EmptyExpired() => col.DeleteMany(b => b.ExpirationDate.ToUniversalTime() < DateTime.UtcNow);
+		public void EmptyExpired()
+		{
+			col.DeleteMany(b => b.ExpirationDate < DateTime.UtcNow);
+		}
 
 		/// <summary>
 		/// Empties all expired entries that are in the Barrel.

src/MonkeyCache.TestsLiteDB/BarrelTests.cs

@@ -18,7 +18,7 @@ public partial class CustomDirBarrelTests
 		public override void SetupBarrel()
 		{
 			var dir = BarrelUtils.GetBasePath("com.refractored.monkeylite.customdir");
-			this.barrel = Barrel.Create(dir);
+			this.barrel = Barrel.Create(dir, true);
 		}
 	}
 

src/MonkeyCache.TestsShared/BarrelTests.cs

@@ -11,7 +11,8 @@
 namespace MonkeyCache.Tests
 {
     [TestClass]
-    public partial class BarrelTests
+	[DoNotParallelize()]
+	public partial class BarrelTests
     {
         IEnumerable<Monkey> monkeys;
 
@@ -527,6 +528,7 @@ void PerformanceTestRunner (int threads, bool allowDuplicateKeys, int keysPerThr
 	}
 
 	[TestClass]
+	[DoNotParallelize()]
 	public partial class CustomDirBarrelTests : BarrelTests
 	{
 	}