public void whenThereIsNotEnoughDurabilityABlankIsWritten()
        {
            pencil = new Pencil(5, 0, 0);

            Assert.AreEqual("abcd f  ", pencil.Write("abcdEfgh"));
        }
        public void whenPointDurabilityIsAtZeroEditingStops()
        {
            pencil = new Pencil(3, 0, 0);

            Assert.AreEqual("Edit Te   Complete", pencil.Edit("Test", "Edit      Complete"));
        }
 public void testInit()
 {
     pencil = new Pencil(100, 100, 100);
 }
        public void whenEraserDurabilityIsZeroErasingStops()
        {
            pencil = new Pencil(5, 1, 8);

            Assert.AreEqual("Reduce Du        ", pencil.Erase(" Durability", "Reduce Durability"));
        }