public void ShouldAcceptPositiveValue()
{
IPoint d1Point;
IPoint d2Point;
IPoint d3Point;
Assert.DoesNotThrow(() => d1Point = new D1Point(5));
Assert.DoesNotThrow(() => d2Point = new D2Point(5, 6));
Assert.DoesNotThrow(() => d3Point = new D3Point(5, 6, 7));
}
public void ShouldThrowExceptionOnNegativeValue()
{
IPoint d1Point;
IPoint d2Point;
IPoint d3Point;
Assert.That(() => d1Point = new D1Point(-5), Throws.TypeOf <InvalidPointException>());
Assert.That(() => d2Point = new D2Point(-6, 5), Throws.TypeOf <InvalidPointException>());
Assert.That(() => d3Point = new D3Point(-7, -2, 1), Throws.TypeOf <InvalidPointException>());
}
