Make GenericParameterHelper's behavior same between running and debugging. (#362)

Author: walterlv

src/TestFramework/MSTest.Core/GenericParameterHelper.cs

@@ -24,6 +24,7 @@ namespace Microsoft.VisualStudio.TestTools.UnitTesting
     public class GenericParameterHelper : IComparable, IEnumerable
     {
         #region Private Fields
+        private static readonly Random Randomizer = new Random();
         private int data;
         private IList ienumerableStore;
 
@@ -40,8 +41,7 @@ public class GenericParameterHelper : IComparable, IEnumerable
         /// </remarks>
         public GenericParameterHelper()
         {
-            Random randomizer = new Random();
-            this.Data = randomizer.Next();
+            this.Data = Randomizer.Next();
         }
 
         /// <summary>

test/UnitTests/MSTest.Core.Unit.Tests/GenericParameterHelperTests.cs

@@ -29,6 +29,15 @@ public void TestInitialize()
             this.sut = new TestFrameworkV2.GenericParameterHelper(10);
         }
 
+        [TestFrameworkV1.TestMethod]
+        public void EqualsShouldReturnFalseIfEachObjectHasDefaultDataValue()
+        {
+            TestFrameworkV2.GenericParameterHelper firstObject = new TestFrameworkV2.GenericParameterHelper();
+            TestFrameworkV2.GenericParameterHelper secondObject = new TestFrameworkV2.GenericParameterHelper();
+
+            TestFrameworkV1.Assert.IsFalse(firstObject.Equals(secondObject));
+        }
+
         [TestFrameworkV1.TestMethod]
         public void EqualsShouldReturnTrueIfTwoObjectHasSameDataValue()
         {