public void GetEuclideanDistanceToPoint_PointIsNull_ThrowArgumentNullException()
{
// Setup
var segment = new Segment2D(new Point2D(1.2, 3.5), new Point2D(8.13, 21.34));
// Call
TestDelegate call = () => segment.GetEuclideanDistanceToPoint(null);
// Assert
Assert.Throws <ArgumentNullException>(call);
}
public void GetEuclideanDistanceToPoint_PointOnSecondPoint_ReturnZero()
{
// Setup
var segment = new Segment2D(new Point2D(1.2, 3.5), new Point2D(8.13, 21.34));
// Call
double euclideanDistance = segment.GetEuclideanDistanceToPoint(segment.SecondPoint);
// Assert
Assert.AreEqual(0, euclideanDistance);
}
public void GetEuclideanDistanceToPoint_LinePerpendicularToSegmentIsClosest_ReturnExpectedDistance(
double x, double y, double expectedDistance)
{
// Setup
var point = new Point2D(x, y);
var segment = new Segment2D(new Point2D(1.1, 2.2), new Point2D(3.3, 4.4));
// Call
double actualDistance = segment.GetEuclideanDistanceToPoint(point);
// Assert
Assert.AreEqual(expectedDistance, actualDistance, 1e-6);
}
public void GetEuclideanDistanceToPoint_SecondPointIsClosest_ReturnExpectedDistance(
double x, double y)
{
// Setup
var point = new Point2D(x, y);
var segment = new Segment2D(new Point2D(1.1, 2.2), new Point2D(3.3, 4.4));
// Call
double actualDistance = segment.GetEuclideanDistanceToPoint(point);
// Assert
double expectedDistance = point.GetEuclideanDistanceTo(segment.SecondPoint);
Assert.AreEqual(expectedDistance, actualDistance);
}
