Added a new function to the caching provider to decrement the caching prefix counter

Author: johelvisguzman

src/DotNetToolkit.Repository/Configuration/Caching/CacheProviderManager.cs

@@ -17,14 +17,22 @@ public sealed class CacheProviderManager
         /// <summary>
         /// Gets the global caching prefix counter.
         /// </summary>
-        internal static int GlobalCachingPrefixCounter { get { return _counter; } }
+        public static int GlobalCachingPrefixCounter { get { return _counter; } }
 
         /// <summary>
-        /// Clears the cache.
+        /// Increments the caching prefix counter.
         /// </summary>
         public static void IncrementCounter()
         {
             Interlocked.Increment(ref _counter);
         }
+
+        /// <summary>
+        /// Decrements the caching prefix counter.
+        /// </summary>
+        public static void DecrementCounter()
+        {
+            Interlocked.Decrement(ref _counter);
+        }
     }
 }

test/DotNetToolkit.Repository.Test/CachingProviderManagerTests.cs

@@ -0,0 +1,28 @@
+namespace DotNetToolkit.Repository.Test
+{
+    using Configuration.Caching;
+    using Xunit;
+
+    public class CachingProviderManagerTests
+    {
+        [Fact]
+        public void IncrementCounter()
+        {
+            var counter = CacheProviderManager.GlobalCachingPrefixCounter;
+
+            CacheProviderManager.IncrementCounter();
+
+            Assert.Equal(counter + 1, CacheProviderManager.GlobalCachingPrefixCounter);
+        }
+
+        [Fact]
+        public void DecrementCounter()
+        {
+            var counter = CacheProviderManager.GlobalCachingPrefixCounter;
+
+            CacheProviderManager.DecrementCounter();
+
+            Assert.Equal(counter - 1, CacheProviderManager.GlobalCachingPrefixCounter);
+        }
+    }
+}