def test_single_hop_trajectory(self):
w = Walker(Board(3, 3))
EXPECTED_PROB = 0.5
probability = w.can_arribe_from(0, 1, to=Coord(2, 1))
self.assertEquals(EXPECTED_PROB, probability)
def _test_straight_trajectory(self):
w = Walker(Board(3, 3).remove_pin_at(1, 1))
EXPECTED_PROB = 1
probability = w.can_arribe_from(0, 1, to=Coord(2, 1))
self.assertEquals(EXPECTED_PROB, probability)
def test_two_hop_trajectory(self):
EXPECTED_PROB = 0.25
w = Walker(Board(5, 5))
probability = w.can_arribe_from(0, 3, to=Coord(2, 1))
self.assertEquals(EXPECTED_PROB, probability)
