public void WithPrimary(int x, int y)
{
var selector = new PolygonalRegionSelector();
var selector2 = (PolygonalRegionSelector)selector.WithPrimary(new Vector(x, y));
Assert.That(selector2.PrimaryPosition, Is.EqualTo(new Vector(x, y)));
}
public void Positions()
{
var selector = new PolygonalRegionSelector(new[] { Vector.Zero, Vector.One, Vector.One });
Assert.That(selector.Positions, Has.Count.EqualTo(3));
Assert.That(selector.Positions[0], Is.EqualTo(Vector.Zero));
Assert.That(selector.Positions[1], Is.EqualTo(Vector.One));
Assert.That(selector.Positions[2], Is.EqualTo(Vector.One));
}
public void WithPrimary_PreviousSelected(int x, int y)
{
RegionSelector selector = new PolygonalRegionSelector();
selector = selector.WithPrimary(Vector.Zero);
selector = selector.WithSecondary(Vector.One);
var selector2 = (PolygonalRegionSelector)selector.WithPrimary(new Vector(x, y));
Assert.That(selector2.PrimaryPosition, Is.EqualTo(new Vector(x, y)));
}
public void WithSecondary(int x, int y)
{
RegionSelector selector = new PolygonalRegionSelector();
selector = selector.WithPrimary(Vector.Zero);
var selector2 = (PolygonalRegionSelector)selector.WithSecondary(new Vector(x, y));
Assert.That(selector2.Positions, Has.Count.EqualTo(2));
Assert.That(selector2.Positions[1], Is.EqualTo(new Vector(x, y)));
}
public void Clear()
{
RegionSelector selector = new PolygonalRegionSelector();
selector = selector.WithPrimary(Vector.Zero);
selector = selector.WithSecondary(Vector.One);
selector = selector.WithSecondary(Vector.One);
var selector2 = (PolygonalRegionSelector)selector.Clear();
Assert.That(selector2.Positions, Is.Empty);
}
public void GetRegion_LessThanThreePositions_NullRegion(int count)
{
RegionSelector selector = new PolygonalRegionSelector();
if (count-- > 0)
{
selector = selector.WithPrimary(Vector.Zero);
}
while (count-- > 0)
{
selector = selector.WithSecondary(Vector.Zero);
}
Assert.That(selector.GetRegion(), Is.InstanceOf <EmptyRegion>());
}
public void GetRegion()
{
RegionSelector selector = new PolygonalRegionSelector();
selector = selector.WithPrimary(Vector.Zero);
selector = selector.WithSecondary(Vector.One);
selector = selector.WithSecondary(Vector.One);
var region = (PolygonalRegion)selector.GetRegion();
Assert.That(region.Vertices, Has.Count.EqualTo(3));
Assert.That(region.Vertices[0], Is.EqualTo(Vector.Zero));
Assert.That(region.Vertices[1], Is.EqualTo(Vector.One));
Assert.That(region.Vertices[2], Is.EqualTo(Vector.One));
}