def test_leave_updates_occupied_to_false(self):
# arrange
lilly_pad_centre = Point(1, 1)
pad = LillyPad(lilly_pad_centre, 2)
# act
pad.leave()
# assert
assert pad.currently_occupied is False
def test_visit_updates_the_visited_list(self):
# arrange
lilly_pad_centre = Point(1, 1)
pad = LillyPad(lilly_pad_centre, 2)
frog_id = 2
# act
pad.visit(frog_id)
# assert
assert frog_id in pad.visited_frogs
def test_occupied_returns_false_when_lilly_pad_not_occupied(self):
# arrange
lilly_pad_centre = Point(1, 1)
pad = LillyPad(lilly_pad_centre, 2)
pad.currently_occupied = False
# act
result = pad.occupied()
# assert
assert result is False
def test_within_reach_returns_false_when_frog_cannot_reach_lilly_pad(self):
# arrange
frog_circle = Circle(Point(20, 20), 2)
lilly_pad_centre = Point(1, 1)
pad = LillyPad(lilly_pad_centre, 2)
# act
result = pad.within_reach(frog_circle)
# assert
assert result is False
def test_find_possible_pads_returns_no_pads_if_nearby_pad_occupied(self):
# arrange
position = Point(2, 2)
frog = Frog(position, 5, 0)
pad = LillyPad(Point(2, 4), 1)
pad.currently_occupied = True
# act
possible_pads = frog._find_possible_lilly_pads([pad])
# assert
assert len(possible_pads) == 0
def test_visit_updates_occupied_to_true(self):
# arrange
lilly_pad_centre = Point(1, 1)
pad = LillyPad(lilly_pad_centre, 2)
frog_id = 2
# act
pad.visit(frog_id)
# assert
assert pad.currently_occupied is True
def test_visited_by_returns_false_when_frog_not_visited(self):
# arrange
centre = Point(1, 1)
pad = LillyPad(centre, 2)
frog_id = 2
pad.visited_frogs = [frog_id+1]
# act
result = pad.visited_by(frog_id)
# assert
assert result is False
def test_lilly_pad_has_circle_attribute_in_expected_position(self):
# arrange
centre = Point(1, 1)
# act
pad = LillyPad(centre, 2)
# assert
assert pad.circle.centre_point == centre
def test_lilly_pad_has_circle_attribute_of_expected_size(self):
# arrange
centre = Point(1, 1)
radius = 2
# act
pad = LillyPad(centre, radius)
# assert
assert pad.circle.radius == radius
def test_find_possible_lilly_pads_returns_empty_list_when_none_are_available(
self):
# arrange
position = Point(20, 20)
frog = Frog(position, 1, 0)
pad = LillyPad(Point(2, 4), 1)
# act
possible_pads = frog._find_possible_lilly_pads([pad])
# assert
assert len(possible_pads) == 0
def test_find_possible_lilly_pads_returns_list_of_lilly_pads_when_some_are_available(
self):
# arrange
position = Point(2, 2)
frog = Frog(position, 1, 0)
pad = LillyPad(Point(2, 4), 1)
# act
possible_pads = frog._find_possible_lilly_pads([pad])
# assert
assert pad in possible_pads
def _create_centre_lilly_pad(self):
position = self.pond.circle.centre_point
radius = self._choose_radius(LillyPad.min_radius, LillyPad.max_radius)
return LillyPad(position, radius, centre_pad=True)
def _create_lilly_pad(self):
radius = self._choose_radius(LillyPad.min_radius, LillyPad.max_radius)
position = self._choose_lilly_pad_position(radius)
return LillyPad(position, radius)