public void RetrieveLeftOverSize1()
        {
            wagon.InsertInWagon(MockAnimals.testAnimals[0]);
            int actualValue = wagon.RetrieveLeftOverSize();

            Assert.AreEqual(9, actualValue);
        }
        public void InsertInWagonSmallHerbivore()
        {
            bool expectedValue = true;
            bool actualValue   = wagon.InsertInWagon(mouse);

            Assert.AreEqual(expectedValue, actualValue);
        }