public static double GetArea(double a, double b, double c)
{
if (!TriangleHelpers.IsTriangleValid(a, b, c))
{
throw new ArgumentException("Sides must be positive");
}
var halfPerimeter = (a + b + c) / 2;
return(Math.Sqrt(halfPerimeter * (halfPerimeter - a) * (halfPerimeter - b) * (halfPerimeter - c)));
}
public void TriangleRectangle_SidesAreZeroAndNegative_ThrowsArgumentException()
{
Assert.ThrowsException <ArgumentException>(
() => TriangleHelpers.IsRectangular(-1, 0, 5),
"Sides must be positive");
}
public void TriangleRectangular_ResultFalse()
{
Assert.IsFalse(TriangleHelpers.IsRectangular(3, 4, 4));
}