public void PathFinder_ShouldConnectAdjacentPoints()
{
var pathfinder = new StraightPathFinder2D();
CollectionAssert.AreEqual(new[] { new IntVector2(0, 1), new IntVector2(0, 2) },
pathfinder.BuildPath(new IntVector2(0, 1), new IntVector2(0, 2)));
CollectionAssert.AreEqual(new[] { new IntVector2(0, 1), new IntVector2(0, 0) },
pathfinder.BuildPath(new IntVector2(0, 1), new IntVector2(0, 0)));
CollectionAssert.AreEqual(new[] { new IntVector2(0, 0), new IntVector2(-1, 0) },
pathfinder.BuildPath(new IntVector2(0, 0), new IntVector2(-1, 0)));
}
public void Integration_SpiralTest()
{
var pf = new StraightPathFinder2D();
var origin = new IntVector2(0, 0);
var nav = new Navigator <IntVector2>(origin, pf);
for (int move = 0; move < 4000; move += 2)
{
nav.Move(new IntVector2(move + 1, 0));
nav.Move(new IntVector2(0, move + 1));
nav.Move(new IntVector2(-(move + 2), 0));
nav.Move(new IntVector2(0, -(move + 2)));
}
Assert.AreEqual(4001 * 4001 - 4000, nav.DistinctPointsVisited);
}
public void TestVerticalPaths()
{
var pathfinder = new StraightPathFinder2D();
var verticalPath = Enumerable
.Range(5, 6)
.Select(it => new IntVector2(3, it));
var verticalResult = pathfinder.BuildPath(new IntVector2(3, 5), new IntVector2(3, 10));
CollectionAssert.AreEqual(verticalPath, verticalResult);
var verticalInversePath = Enumerable
.Range(5, 6)
.Select(it => new IntVector2(3, it))
.Reverse();
var verticalInverseResult = pathfinder.BuildPath(new IntVector2(3, 10), new IntVector2(3, 5));
CollectionAssert.AreEqual(verticalInversePath, verticalInverseResult);
}
private void TestHorizontalPaths()
{
var pathfinder = new StraightPathFinder2D();
var horizontalPath = Enumerable
.Range(-5, 11)
.Select(it => new IntVector2(it, 3));
var horizontalResult = pathfinder.BuildPath(new IntVector2(-5, 3), new IntVector2(5, 3));
CollectionAssert.AreEqual(horizontalPath, horizontalResult);
var horizontalInversePath = Enumerable
.Range(-5, 11)
.Select(it => new IntVector2(it, 3))
.Reverse();
var horizontalInverseResult = pathfinder.BuildPath(new IntVector2(5, 3), new IntVector2(-5, 3));
CollectionAssert.AreEqual(horizontalInversePath, horizontalInverseResult);
}
public void PathFinder_ThrowsWhenEncounteringNonStraightPath()
{
var pathfinder = new StraightPathFinder2D();
Assert.Throws <NotImplementedException>(() => pathfinder.BuildPath(new IntVector2(0, 0), new IntVector2(1, 1)));
}
