public void GetTotalBarAreaTest()
        {
            SteelBar test     = new SteelBar(10, 100, 2);
            double   expected = 200;
            double   actual   = test.GetTotalBarArea();

            Assert.AreEqual(expected, actual, 0.01);
        }
        public void SteelBarQuantityConstructorTest()
        {
            SteelBar actual = new SteelBar(10, 100, 2);

            Assert.AreEqual(100, actual.Area);
            Assert.AreEqual(10, actual.Identifier);
            Assert.AreEqual(2, actual.Quantity);
        }
        public void SteelBarConstructorTest()
        {
            SteelBar actual = new SteelBar(10, 100);

            Assert.AreEqual(actual.Area, 100);
            Assert.AreEqual(actual.Identifier, 10);
            Assert.AreEqual(actual.Quantity, 0);
        }
 public void SteelBarConstructorAreaZeroTest()
 {
     SteelBar actual = new SteelBar(10, 0);
 }
 public void SteelBarConstructorNegativeNumberTest()
 {
     SteelBar actual = new SteelBar(10, -100);
 }