public void CalculateArea_Correct(double radius, double area)
{
var circle = FlatFigureFabric.CreateCircle(radius);
var result = circle.CalculateArea();
Assert.AreEqual(area, result);
}
public void NewCircle_NotPositiveRadius_Exception(double radius)
{
Assert.Throws <ValidationException>(() => FlatFigureFabric.CreateCircle(radius));
}
public void NewCircle_PositiveRadius_OK(double radius)
{
Assert.DoesNotThrow(() => FlatFigureFabric.CreateCircle(radius));
}