public void When_direction_is_negative_Then_top_left_is_shifted()
{
var state = new RectangularSelection();
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(-10, -10));
var selection = state.Rectangle;
Assert.That(selection.Top, Is.EqualTo(-10));
Assert.That(selection.Left, Is.EqualTo(-10));
Assert.That(selection.Right, Is.EqualTo(0));
Assert.That(selection.Bottom, Is.EqualTo(0));
}
public void When_new_negative_state_decreases_height_Then_delta_is_top_increment()
{
IEnumerable <Rectangle> delta = null;
var state = new RectangularSelection();
state.Changed += (previousRect, previousStart, previousSelecting, invalidateAreas) => delta = invalidateAreas;
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(-10, -20));
state.MoveTo(new Point(-10, -10));
var expectedDelta = Array.From(new Rectangle(-10, -20, 10, 10));
Assert.That(delta, Is.EquivalentTo(expectedDelta));
}
public void When_new_negative_state_decreases_width_Then_delta_is_left_increment()
{
IEnumerable <Rectangle> delta = null;
var state = new RectangularSelection();
state.Changed += (r, l, s, d) => delta = d;
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(-20, -10));
state.MoveTo(new Point(-10, -10));
var expectedDelta = Array.From(new Rectangle(-20, -10, 10, 10));
Assert.That(delta, Is.EquivalentTo(expectedDelta));
}
public void When_new_positive_state_increases_height_Then_delta_is_bottom_increment()
{
IEnumerable <Rectangle> delta = null;
var state = new RectangularSelection();
state.Changed += (r, l, s, d) => delta = d;
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(10, 10));
state.MoveTo(new Point(10, 20));
var expectedDelta = Array.From(new Rectangle(0, 10, 10, 10));
Assert.That(delta, Is.EquivalentTo(expectedDelta));
}
public void When_new_positive_state_is_less_than_old_Then_delta_is_right_and_bottom_increments()
{
IEnumerable <Rectangle> delta = null;
var state = new RectangularSelection();
state.Changed += (r, l, s, d) => delta = d;
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(20, 20));
state.MoveTo(new Point(10, 10));
var expectedDelta = Sequence.Array(new Rectangle(10, 0, 10, 20), new Rectangle(0, 10, 10, 10));
Assert.That(delta, Is.EquivalentTo(expectedDelta));
}
public void When_new_state_does_not_intersect_previous_Then_delta_is_previous_and_current_rectangle()
{
IEnumerable <Rectangle> delta = null;
var state = new RectangularSelection();
state.Changed += (r, l, s, d) => delta = d;
state.StartAt(new Point(0, 0));
state.MoveTo(new Point(10, 10));
state.MoveTo(new Point(-10, -10));
var expectedDelta = Sequence.Array(new Rectangle(0, 0, 10, 10), new Rectangle(-10, -10, 10, 10));
Assert.That(delta, Is.EquivalentTo(expectedDelta));
}
private void Start()
{
rectangularSelection = GetComponent <RectangularSelection>();
rectangularSelection.EndSelection();
}
