blog_UnitTestCode.cs

[TestClass()]
public class MyStackTests
{
   [TestMethod()]
   public void ConstructorTest()
   {
      var myStack = new MyStack<int>();
      Assert.IsTrue(myStack.Size == 0, "Expecting stack size to be 0 but is not.");
      Assert.IsTrue(myStack.IsEmpty, "Expecting stack to be empty but is not.");
   }
  
   // ...
  
   [TestMethod()]
   public void PopTest()
   {
      var myStack = new MyStack<double>();
      myStack.Push(1.5);
      myStack.Push(3.2);
      Assert.AreEqual(3.2, myStack.Pop(), "Expecting popped element to be 3.2 but is not.");
      Assert.AreEqual(1.5, myStack.Pop(), "Expecting popped element to be 1.5 but is not.");
   }

   [TestMethod()]
   public void PopIsEmptyTest()
   {
      var myStack = new MyStack<int>();
      Assert.ThrowsException<InvalidOperationException>(delegate () { myStack.Pop(); },
         "Did not throw InvalidOperationException when Pop() is called when stack is empty.");
   }
}