public void GetSizeModifier_Large()
        {
            // Arrange
            var mockCharacter = new Mock <ICharacter>();

            mockCharacter.Setup(c => c.Size)
            .Returns(SizeCategory.Large);
            CombatManeuverDefense cmd = new CombatManeuverDefense(mockCharacter.Object);

            // Act
            var sizeMod = cmd.GetSizeModifier();

            // Assert
            Assert.AreEqual(1, sizeMod,
                            "Large characters should have a +1 size modifier to their CMD.");
        }