def test_construct_too_small_car():
with assert_raises_regexp(InvalidCarError, ".*more than 1 block.*"):
_car_from_positions('r', {})
with assert_raises_regexp(InvalidCarError, ".*more than 1 block.*"):
_car_from_positions('r', {(0, 0)})
def test_car_from_vertical_positions1():
position, car = _car_from_positions('r', {(0, 0), (0, 1), (0, 2)})
eq_(car.color, 'r')
eq_(car.orientation, Direction.vertical)
eq_(car.length, 3)
eq_(position, (0, 0))
def test_car_from_horizontal_positions2():
position, car = _car_from_positions('r', {(2, 5), (3, 5), (4, 5)})
eq_(car.color, 'r')
eq_(car.orientation, Direction.horizontal)
eq_(car.length, 3)
eq_(position, (2, 5))
def test_car_from_horizontal_positions1():
position, car = _car_from_positions('r', {(0, 0), (1, 0)})
eq_(car.color, 'r')
eq_(car.orientation, Direction.horizontal)
eq_(car.length, 2)
eq_(position, (0, 0))
def test_construct_car_with_gaps():
with assert_raises_regexp(InvalidCarError, ".*gaps.*"):
_car_from_positions('r', {(0, 0), (0, 2)})
def test_construct_car_that_extends_beyond_one_line():
with assert_raises_regexp(InvalidCarError, ".*1 row.*1 column.*"):
_car_from_positions('r', {(0, 0), (1, 0), (0, 1)})
