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test_snake_model.py
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test_snake_model.py
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from unittest import TestCase
import unittest
from src.the_game.backend.snake_model import Snake
from src.the_game.backend.snake_model import Playground
from src.the_game.backend.snake_model import Food
class TestGeneric(TestCase):
def test_list_behaviour(self):
my_list = []
[[my_list.append((j, i)) for i in range(20)] for j in range(20)]
my_body = [(i, 3) for i in range(10)]
list_size = len(my_list)
body_size = len(my_body)
for segment in my_body:
if segment in my_list:
my_list.remove(segment)
assert len(my_list) == list_size - body_size
class TestSnake(TestCase):
def test_init(self):
s = Snake()
assert s.get_position() == (Playground.size[0] / 2, Playground.size[1] / 2)
def test_get_speed_and_turn(self):
s = Snake()
assert s.get_speed() == (-1, 0)
s.turn('lt')
assert s.get_speed() == (0, -1) # lt
s.turn('lt')
s.turn('rt')
assert s.get_speed() == (0, -1)
s.turn('dn')
assert s.get_speed() == (1, 0)
s.turn('up')
assert s.get_speed() == (1, 0)
s.turn('rt')
assert s.get_speed() == (0, 1)
s.turn('up')
assert s.get_speed() == (-1, 0)
s.turn('up')
assert s.get_speed() == (-1, 0)
s.turn('lt')
assert s.get_speed() == (0, -1)
def test_move(self):
s = Snake()
x_shift = Playground.size[1] // 2
def move_n_cells(n, dest_x, dest_y):
[s.move() for _ in range(1, n)]
assert s.get_position() == (dest_y, dest_x)
n = 100
s.turn('up')
move_n_cells(n, x_shift, 0)
s.turn('rt')
move_n_cells(n, Playground.size[0] - 1, 0)
s.turn('dn')
move_n_cells(n, Playground.size[0] - 1, Playground.size[0] - 1)
s.turn('lt')
move_n_cells(n, 0, Playground.size[0] - 1)
def test_get_body(self):
s = Snake()
x_shift = Playground.size[1] // 2
y_shift = Playground.size[0] // 2
def move_snake_by_straight(n, dest_x, dest_y, direction=(-1, 0), print_flag=False):
for i in range(1, n+1):
s.move()
# print_body(s)
assert s.get_position() == (dest_y + y_shift, dest_x + x_shift)
i = 0
j = 0
for segment in s.get_body():
if print_flag:
print(segment.pos, "i: ", i, "j: ", j)
assert segment.pos == (dest_y - i + y_shift, dest_x - j + y_shift)
i += direction[0]
j += direction[1]
move_snake_by_straight(10, 0, -10)
s.turn('lt')
move_snake_by_straight(10, -10, -10, direction=(0, -1))
s.turn('dn')
move_snake_by_straight(10, -10, 0, direction=(1, 0))
s.turn('rt')
move_snake_by_straight(10, 0, 0, direction=(0, 1))
s2 = Snake()
s2.move()
s2.turn('lt')
[s2.move() for _ in range(2)]
s2_body = s2.get_body()
assert s2_body[0].pos == (-1 + y_shift, -2 + x_shift)
assert s2_body[1].pos == (-1 + y_shift, -1 + x_shift)
assert s2_body[2].pos == (-1 + y_shift, 0 + x_shift)
assert s2_body[3].pos == (0 + y_shift, 0 + x_shift)
def test_self_collision(self):
s = Snake(length=10)
x_shift = Playground.size[1] // 2
y_shift = Playground.size[0] // 2
def n_moves_to(di, n):
s.turn(di)
for _ in range(n):
if s.move() == Snake.self_collision:
assert s.get_position() == (2 + y_shift, 1 + x_shift)
n_moves_to('rt', 2)
n_moves_to('dn', 2)
n_moves_to('lt', 5)
def test_wall_collision(self):
s = Snake()
x_shift = Playground.size[1] // 2
def n_moves_to(di, n):
s.turn(di)
for _ in range(n):
if s.move() == Snake.wall_collision:
assert s.get_position() == (0, x_shift)
n_moves_to('up', 100)
@unittest.skip("Requires manual driving")
def test_snake_main(self):
s = Snake()
def show_snake():
print("----- Snake -----")
for segment in s.get_body():
print(segment.get_pos())
print("===== Snake =====")
print("----- Food -----")
print(s.__food.get_pos())
print("===== Food =====")
while(s.cli()):
s.move()
show_snake()
class TestPlayground(TestCase):
def test_init(self):
p = Playground()
assert (-1, 0) in p.borders
assert (-1, 19) in p.borders
assert (20, 0) in p.borders
assert (20, 19) in p.borders
assert (0, -1) in p.borders
assert (19, -1) in p.borders
assert (0, 20) in p.borders
assert (19, 20) in p.borders
class TestFood(TestCase):
def test_change_pos(self):
s = Snake()
f = Food()
f.change_pos(s.get_body())
food_pos = f.get_pos()
assert food_pos[0] < Playground.size[0]
assert food_pos[1] < Playground.size[1]
assert food_pos[0] >= 0
assert food_pos[1] >= 0
def test_index_funcs(self):
Food()
p = Playground()
point1 = (1, 1)
index1 = Playground.get_index(p, point1)
assert index1 == (p.rows + 2) - 1
assert Playground.convert_index(p, index1) == point1