def test03(self):
""" one moving bug """
grid = Grid(5, 5)
bug = Bug(grid, pheromoneKind=PHEROMONE, pheromoneValue=4)
grid.put(2, 2, bug)
grid.diffuse()
self.assertEquals(4, grid.scent(2, 2, PHEROMONE))
grid.remove(2, 2, bug)
grid.put(2, 3, bug)
grid.diffuse()
self.assertEquals(0.5, grid.scent(1, 1, PHEROMONE))
self.assertEquals(0 , grid.scent(2, 2, PHEROMONE))
self.assertEquals(4.5, grid.scent(2, 3, PHEROMONE))
grid.remove(2, 3, bug)
grid.put(3, 3, bug)
grid.diffuse()
self.assertEquals(0.0625, grid.scent(0, 0, PHEROMONE))
self.assertEquals(0.125 , grid.scent(0, 1, PHEROMONE))
self.assertEquals(0.1875, grid.scent(0, 2, PHEROMONE))
self.assertEquals(0.125 , grid.scent(1, 1, PHEROMONE))
self.assertEquals(1 , grid.scent(2, 2, PHEROMONE))
self.assertEquals(0.25 , grid.scent(2, 3, PHEROMONE))
self.assertEquals(4.625 , grid.scent(3, 3, PHEROMONE))
def test06(self):
""" an object knows its location when put on the grid """
grid = Grid(5, 5)
bug = Bug(grid, pheromoneKind=PHEROMONE, pheromoneValue=4)
grid.put(2, 2, bug)
self.assertEquals((2, 2), (bug.x, bug.y))
grid.remove(2, 2, bug)
self.assertEquals((None, None), (bug.x, bug.y))
