public void create_x_unit()
{
var expected = new Vector2D(1, 0);
var actual = Vector2D.CreateXUnit();
Assert.Equal(expected, actual);
}
public void unit_x_normalizes_to_self()
{
var vector = Vector2D.CreateXUnit();
var expected = new Vector2D(vector);
var actual = vector.GetNormal();
Assert.Equal(expected, actual);
}
public void unit_x_normalizes_to_self()
{
var actual = Vector2D.CreateXUnit();
var expected = new Vector2D(actual);
actual.Normalize();
Assert.Equal(expected, actual);
}