def test_generate_robot(self):
grid = Grid(3, 3)
grid.generate_robot(0, 0, 'N')
assert len(grid.robots) > 0
assert grid.robots[0].pos() == (0, 0, 'N')
def test_should_not_generate_robot_at_invalid_coordinate(self):
grid = Grid(3, 3)
with pytest.raises(CustomExceptions.CoordinateDoesntExistError) as exc:
grid.generate_robot(4, 1, 'E')
assert str(exc.value) == str((4, 1, 'E'))
def test_should_not_generate_robot_at_same_coordinate(self):
grid = Grid(3, 3)
grid.generate_robot(1, 1, 'E')
with pytest.raises(CustomExceptions.LaunchRobotCrashError) as exc:
grid.generate_robot(1, 1, 'E')
assert str(exc.value) == str((1, 1, 'E'))
def test_last_positions(self, robots, expected):
grid = Grid(5, 5)
for robot in robots:
grid.generate_robot(*robot)
final = grid.last_positions()
assert len(final) == len(expected)
assert final == expected
def test_apply_robot_instructions(
self,
robot_position,
instructions,
final,
):
grid = Grid(5, 5)
grid.generate_robot(*robot_position)
grid.apply_robot_instructions(instructions)
assert grid.robots[0].pos() == final
def main():
print('*** Welcome to the Mars Robots Guide! ***\n')
print('Here are the computed outputs:\n')
with open('robots_guide.in.md') as f:
lines = f.readlines()
grid_size = lines[0]
if not grid_size:
return
grid_size = grid_size.split(' ')
max_x_axis = int(grid_size[0])
max_y_axis = int(grid_size[1])
if max_x_axis > 50 or max_y_axis > 50:
raise CustomExceptions.InvalidGridRangeError(max_x_axis, max_y_axis)
grid = Grid(
x=max_x_axis,
y=max_y_axis,
)
updated_lines = lines.pop(0) # upper-right coordinates of the rectangular world
robots_seed_positions = lines[::2] # Robots initial position
robots_instructions = lines[1::2] # Robots instructions
for position, instruction in zip(robots_seed_positions, robots_instructions):
robot_initial_pos = position.strip('\n')
if not robot_initial_pos:
break
robot_instruction = instruction
robot_initial_pos = robot_initial_pos.split(' ')
grid.generate_robot(
x=int(robot_initial_pos[0]),
y=int(robot_initial_pos[1]),
orientation=robot_initial_pos[2],
)
grid.apply_robot_instructions(robot_instruction)
f.close()