def test_2(self):
'''
-Check if the first tile is cleaned
-Check if the direction is being defined before position
-Check if the direction is being returned as an integer
'''
temp_method = ps7.RectangularRoom.getRandomPosition
random_state = random.getstate()
def custom_method(*args):
test = random.getstate() != random_state
msg = ('In the Robot class you need to define ' +
'the direction before the position.')
self.assertTrue(test, msg)
return temp_method(*args)
ps7.RectangularRoom.getRandomPosition = custom_method
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
pos = robot.getRobotPosition()
x = int(pos.getX())
y = int(pos.getY())
test = room.isTileCleaned(x, y)
msg = ('The tile the robot is first put on ' +
'must be cleaned during creation.')
self.assertTrue(test, msg)
direction = robot.getRobotDirection()
test = isinstance(direction, int)
msg = ('The direction should be an integer.')
self.assertTrue(test, msg)
reload(ps7)
def test_3(self):
'''
-Check if random.randint isn't called with end at 360
-Check if the round function isn't being called
'''
temp_function = random.randint
def custom_function(*args):
test = args[1] != 360
msg = ('The random.randint() function includes the end in ' +
'the results. You only need directions from 0 to 359.')
self.assertTrue(test, msg)
return temp_function(*args)
random.randint = custom_function
temp_builtin = __builtin__.round
def custom_builtin(*args):
msg = ('You shouldn\'t be using the round() function. It can ' +
'distort the results enough to fail the checker.')
self.assertTrue(False, msg)
return temp_builtin(*args)
__builtin__.round = custom_builtin
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
reload(random)
reload(__builtin__)
def test_1(self):
'''
-Check if Position objects are created with floats
-Check if the random.seed function isn't being called
'''
temp_init = ps7.Position.__init__
def custom_init(*args):
test = isinstance(args[1], float) and isinstance(args[2], float)
msg = 'A Position object must be created using floats.'
self.assertTrue(test, msg)
return temp_init(*args)
ps7.Position.__init__ = custom_init
temp_seed = random.seed
def custom_seed(*args):
msg = 'The random.seed function must not be used.'
self.assertTrue(False, msg)
return temp_seed(*args)
random.seed = custom_seed
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
room.getRandomPosition()
reload(random)
reload(ps7)
def test_1(self):
'''
-Check if the direction is being changed a single time
in updatePositionAndClean() method
-Check if the setRobotDirection() method is being called
on the updatePositionAndClean() method
'''
temp_method = ps7.StandardRobot.setRobotDirection
self.count = 0
def custom_method(*args):
self.count += 1
return temp_method(*args)
ps7.StandardRobot.setRobotDirection = custom_method
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
for _ in range(room.getNumTiles()):
robot.updatePositionAndClean()
if self.count != 0:
break
else:
msg = ('The setRobotDirection() method isn\'t being ' +
'called on the updatePositionAndClean() method.')
self.assertTrue(False, msg)
test = self.count == 1
msg = ('In the updatePositionAndClean() method if the position is ' +
'invalid you\'re supposed to set a new robot direction and ' +
'not move during that step.')
self.assertTrue(test, msg)
reload(ps7)
def test_4(self):
'''
-Check if there are exactly two calls to a random
function on the getRandomPosition() method
'''
random.seed(0)
random.random()
random.random()
check = random.random()
room = ps7.RectangularRoom(8, 8)
random.seed(0)
room.getRandomPosition()
test = check == random.random()
msg = ('The grader expects the getRandomPosition() method to make ' +
'two calls to random functions, one for each coordinate.')
self.assertTrue(test, msg)
def test_3(self):
'''
-Check if isPositionInRoom() isn't being called multiple times(loops)
'''
temp_method = ps7.RectangularRoom.isPositionInRoom
self.count = 0
def custom_method(*args):
self.count += 1
return temp_method(*args)
ps7.RectangularRoom.isPositionInRoom = custom_method
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
robot.updatePositionAndClean()
test = self.count == 1
msg = ('You only need to call the isPositionInRoom() method once ' +
'in the updatePositionAndClean() method. You can\'t use loops.')
self.assertTrue(test, msg)
reload(ps7)
def test_2(self):
'''
-Check if the robot is cleaning the new tile it's moving to,
rather than the old tile it's moving from
-Check if the updatePositionAndClean() method is changing the
robot's position
'''
room = ps7.RectangularRoom(8, 8)
robot = ps7.StandardRobot(room, 1.0)
pos = robot.getRobotPosition()
for _ in range(room.getNumTiles()):
robot.updatePositionAndClean()
if pos != robot.getRobotPosition():
break
else:
msg = ('The updatePositionAndClean() method isn\'t ' +
'changing the robot\'s position.')
self.assertTrue(False, msg)
pos = robot.getRobotPosition()
test = room.isTileCleaned(int(pos.getX()), int(pos.getY()))
msg = ('In the updatePositionAndClean() method you\'re cleaning ' +
'the old tile the robot is moving from, you need to clean ' +
'the new tile the robot is moving to.')
self.assertTrue(test, msg)
