Add unit tests for hashtable with classes as keys

Author: josesimoes

Tests/HashtableTests/HashtableTests.cs

@@ -7,6 +7,7 @@
 using nanoFramework.TestFramework;
 using System;
 using System.Collections;
+using System.Diagnostics;
 
 namespace NFUnitTests
 {
@@ -21,6 +22,15 @@ public void SetupTests()
         {
             // need this empty method to get everything setup in the class
             // otherwise the 1st test will incur in that time penalty thus not proving an accurate execution time
+
+            Hashtable ht = new Hashtable();
+
+            for (ulong i = 1; i <= 100; i++)
+            {
+                SomeKey se = new SomeKey();
+                Debug.WriteLine($"Adding element no {i}");
+                ht.Add(se, i);
+            }
         }
 
         [TestMethod]
@@ -677,6 +687,20 @@ public void Hashtable_InsertNullKey()
             }, "No exception was thrown when adding a NULL key.");
         }
 
+        [TestMethod]
+        public void Hashtable_ClassAsKey()
+        {
+            Hashtable ht = CreateClassHashtable(10);
+
+            foreach (var key in ht.Keys)
+            {
+                Assert.AreEqual($"Value_{key.GetHashCode()}", ht[key] as string);
+            }
+
+
+
+        }
+
         #region helper classes and methods
 
         /// <summary>
@@ -783,6 +807,26 @@ public static Hashtable CreateStringHashtable(int count, int start = 0)
             return hashtable;
         }
 
+        public static Hashtable CreateClassHashtable(int count, int start = 0)
+        {
+            var hashtable = new Hashtable();
+
+            for (int i = start; i < start + count; i++)
+            {
+                var key = new SomeKey();
+                string value = "Value_" + key.GetHashCode();
+
+                hashtable.Add(key, value);
+            }
+
+            return hashtable;
+        }
+
+        public class SomeKey
+        {
+
+        }
+
         private class Foo
         {
             public string StringValue { get; set; } = "Hello World";