/
test_gol.py
53 lines (42 loc) · 1.79 KB
/
test_gol.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
import gol as g
def test_tick_empty_returns_empty():
assert g.tick(set([])) == set([])
def test_tick_single_cell_dies():
assert g.tick(set([(2,3)])) == set([])
def test_tick_four_cell_block_is_steady_state():
square = set([(2,3), (3,3), (2,2), (3,2)])
assert g.tick(square) == square
def test_get_neighbors_gives_all_neighbors():
coords = (4,5)
neighbors = set([(x,y) for x in range(3,6) for y in range(4,7)])
neighbors.remove(coords)
assert g.get_neighbors(coords) == neighbors
def test_get_border_gets_border_set():
live_cells = set([(0,0), (1,0), (1,1)])
border = set([(-1,0), (-1,1), (0, 1), (0, 2), (1, 2), (2,2), (2, 1),
(2, 0), (2, -1), (1, -1), (0, -1), (-1, -1)])
assert g.get_border(live_cells) == border
def test_vertical_line_becomes_horizontal_line():
world_before = set([(0, -1), (0, 0), (0, 1)])
world_after = set([(-1, 0), (0, 0), (1, 0)])
assert g.tick(world_before) == world_after
def test_cell_with_no_neighbors_dies():
cell = (4,5)
lonely_world = set([cell])
assert g.cell_survives(lonely_world, cell) is False
def test_cell_with_four_neighbors_dies():
cell = (4,5)
crowded_world = set([cell, (3,5), (4,4), (5,5), (3,4)])
assert g.cell_survives(crowded_world, cell) is False
def test_cell_with_three_neighbors_survives():
cell = (4,5)
comfortable_world = set([cell, (3,5), (4,4), (5,5)])
assert g.cell_survives(comfortable_world, cell) is True
def test_dead_cell_with_two_neighbors_stays_dead():
cell = (4,5)
lonely_world = set([cell, (3,5), (4,4)])
assert g.cell_is_born(lonely_world, cell) is False
def test_dead_cell_with_three_neighbors_is_born():
cell = (4,5)
comfortable_world = set([cell, (3,5), (4,4), (5,5)])
assert g.cell_is_born(comfortable_world, cell) is True