Added tests for LRUCache.

Moved core test code to reflect changes in core code.

Removed unused using directives.

src/GameServiceWarden.Core/Module/LRUCache.cs

@@ -1,77 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace GameServiceWarden.Core.Module
-{
-    public class LRUCache<K, V>
-    {
-        private class Node
-        {
-            public K key;
-            public V value;
-            public Node front;
-            public Node back;
-        }
-
-        public int Size {get { return size; } }
-        public int Length {get { return valueDictionary.Count; } }
-        private readonly int size;
-        private Node top;
-        private Node bottom;
-        private Dictionary<K, Node> valueDictionary;
-        private Action<V> cleanupAction;
-
-        public LRUCache(int size = 100, Action<V> cleanup = null)
-        {
-            this.size = size;
-            valueDictionary = new Dictionary<K, Node>(size);
-            this.cleanupAction = cleanup;
-        }
-
-        private void MoveToTop(K key) {
-            Node node = valueDictionary[key];
-            if (node != null && top != node) {
-                node.front.back = node.back;
-                node.back = top;
-                node.front = null;
-                top = node;
-            }
-        }
-
-        private Node AddToTop(K key, V value) {
-            Node node = new Node();
-            node.front = null;
-            node.back = top;
-            node.value = value;
-            node.key = key;
-            top = node;
-            if (bottom == null) {
-                bottom = node;
-            } else if (valueDictionary.Count == Size) {
-                valueDictionary.Remove(bottom.key);
-                cleanupAction(bottom.value);
-                bottom = bottom.front;
-            }
-            valueDictionary[key] = node;
-            return node;
-        }
-
-        public V Use(K key, Func<V> generate) {
-            if (generate == null) throw new ArgumentNullException("generate");
-            Node value = null;
-            if (valueDictionary.ContainsKey(key)) {
-                value = valueDictionary[key];
-                MoveToTop(key);
-            } else {
-                value = AddToTop(key, generate());
-            }
-            return value.value;
-        }
-
-        public void Clear() {
-            top = null;
-            bottom = null;
-            valueDictionary.Clear();
-        }
-    }
-}

src/GameServiceWarden.Core/Module/ServiceManager.cs

@@ -2,14 +2,10 @@ using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.Immutable;
-using System.Collections.ObjectModel;
-using System.IO;
-using System.IO.Pipes;
-using System.Linq;
 using GameServiceWarden.API.Games;
 using GameServiceWarden.Core.Persistence;
 using GameServiceWarden.API.Module;
-using System.Text;
+using GameServiceWarden.Core.Collection;
 
 namespace GameServiceWarden.Core.Module
 {