rename test project

tests/CacheItemTest.cs

@@ -1,8 +1,9 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Skeleton.DataStructure;
 
-namespace SkeletonTest.tests;
+namespace Skeleton.Test.tests;
 
 public static class CacheItemTest
 {
@@ -161,5 +162,33 @@ public static class CacheItemTest
         Assert.That(a.BB.Get, Is.EqualTo(0));
         Assert.That(b.BA.Get, Is.EqualTo(1));
     }
+
+    [Test]
+    public static void Test4()
+    {
+        CacheItem<int> x = new CacheItem<int>(s => 1);
+        CacheItem<int> w = new CacheItem<int>(a => x.GetFrom(a) + x.GetFrom(a));
+        CacheItem<int> g = new CacheItem<int>(a => w.GetFrom(a) + w.GetFrom(a) + x.GetFrom(a));
+        Assert.That(g.Get, Is.EqualTo(5));
+        x.Assign(2);
+        Console.WriteLine(g.Get);
+        Assert.That(g.Get, Is.EqualTo(10));
+    }
+    [Test]
+    public static void Test5()
+    {
+        CacheItem<int> x1 = new CacheItem<int>(x => 1);
+        CacheItem<int> x2 = new CacheItem<int>(x => x1.GetFrom(x));
+        CacheItem<int> x3 = new CacheItem<int>(x => x2.GetFrom(x));
+        CacheItem<int> x4 = new CacheItem<int>(x => x3.GetFrom(x));
+
+        Console.WriteLine(x4.Get);
+        x1.Assign(3);
+        Assert.IsTrue(x2.Expired);
+        Assert.IsTrue(x3.Expired);
+        Assert.IsTrue(x4.Expired);
+        Console.WriteLine(x4.Get);
+        
+    }
 }