public void AreaCalculationTest2() { // Test a badly-formed polyline (with duplicate points): var pline = new PolyLine( new Vector(0, 0), new Vector(0, 2), new Vector(0, 2), new Vector(2, 0), new Vector(0, 0)); pline.Close(); double area = pline.CalculateEnclosedArea(); Assert.AreEqual(2.0, area); }