public void Build_EquilateralTriangleForInvalidData_TriangleTypeException()
        {
            // arrange
            var sides = ReadTriangleSidesFromTestContext();

            // act
            var res = new EquilateralTriangleBuilder(null).Build(sides);

            // assert
        }
        public void Build_EquilateralTriangleForValidData_IsEquilateralTriangle()
        {
            // arrange
            var sides = ReadTriangleSidesFromTestContext();

            // act
            var res = new EquilateralTriangleBuilder(null).Build(sides);

            // assert
            Assert.IsInstanceOfType(res, typeof(EquilateralTriangle));
        }