public void PentagonCopyConstructor() { var len = 15; var PentagonToCopy = new Pentagon(len); sut = new Pentagon(PentagonToCopy); Assert.That(sut.CalculateArea(), Is.EqualTo(PentagonToCopy.CalculateArea())); Assert.That(sut.CalculatePerimeter(), Is.EqualTo(PentagonToCopy.CalculatePerimeter())); }