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bowling_test.py
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bowling_test.py
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import unittest
from bowling import BowlingGame
# Tests adapted from `problem-specifications//canonical-data.json`
class BowlingTest(unittest.TestCase):
def roll_new_game(self, rolls):
game = BowlingGame()
for roll in rolls:
game.roll(roll)
return game
def test_should_be_able_to_score_a_game_with_all_zeros(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 0)
def test_should_be_able_to_score_a_game_with_no_strikes_or_spares(self):
rolls = [3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 90)
def test_a_spare_followed_by_zeros_is_worth_ten_points(self):
rolls = [6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 10)
def test_points_scored_in_the_roll_after_a_spare_are_counted_twice(self):
rolls = [6, 4, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 16)
def test_consecutive_spares_each_get_a_one_roll_bonus(self):
rolls = [5, 5, 3, 7, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 31)
def test_a_spare_in_the_last_frame_gets_a_one_roll_bonus_that_is_counted_once(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 7]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 17)
def test_a_strike_earns_ten_points_in_a_frame_with_a_single_roll(self):
rolls = [10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 10)
def test_points_scored_in_the_two_rolls_after_a_strike_are_counted_twice_as_a_bonus(
self
):
rolls = [10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 26)
def test_consecutive_strikes_each_get_the_two_roll_bonus(self):
rolls = [10, 10, 10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 81)
def test_a_strike_in_the_last_frame_gets_a_two_roll_bonus_that_is_counted_once(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 7, 1]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 18)
def test_rolling_a_spare_with_the_two_roll_bonus_does_not_get_a_bonus_roll(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 7, 3]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 20)
def test_strikes_with_the_two_roll_bonus_do_not_get_bonus_rolls(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 10]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 30)
def test_a_strike_with_the_one_roll_bonus_after_a_spare_in_the_last_frame_does_not_get_a_bonus(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 10]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 20)
def test_all_strikes_is_a_perfect_game(self):
rolls = [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 300)
def test_rolls_cannot_score_negative_points(self):
rolls = []
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(-1)
def test_a_roll_cannot_score_more_than_10_points(self):
rolls = []
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(11)
def test_two_rolls_in_a_frame_cannot_score_more_than_10_points(self):
rolls = [5]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(6)
def test_bonus_roll_after_a_strike_in_the_last_frame_cannot_score_more_than_10_points(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(11)
def test_two_bonus_rolls_after_a_strike_in_the_last_frame_cannot_score_more_than_10_points(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 5]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(6)
def test_two_bonus_rolls_after_a_strike_in_the_last_frame_can_score_more_than_10_points_if_one_is_a_strike(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 6]
game = self.roll_new_game(rolls)
self.assertEqual(game.score(), 26)
def test_the_second_bonus_rolls_after_a_strike_in_the_last_frame_cannot_be_a_strike_if_the_first_one_is_not_a_strike(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 6]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(10)
def test_second_bonus_roll_after_a_strike_in_the_last_frame_cannot_score_more_than_10_points(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(11)
def test_an_unstarted_game_cannot_be_scored(self):
rolls = []
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll()
def test_an_incomplete_game_cannot_be_scored(self):
rolls = [0, 0]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll()
def test_cannot_roll_if_game_already_has_ten_frames(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(0)
def test_bonus_rolls_for_a_strike_in_the_last_frame_must_be_rolled_before_score_can_be_calculated(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll()
def test_both_bonus_rolls_for_a_strike_in_the_last_frame_must_be_rolled_before_score_can_be_calculated(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll()
def test_bonus_roll_for_a_spare_in_the_last_frame_must_be_rolled_before_score_can_be_calculated(
self
):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll()
def test_cannot_roll_after_bonus_roll_for_spare(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 2]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(2)
def test_cannot_roll_after_bonus_rolls_for_strike(self):
rolls = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 3, 2]
game = self.roll_new_game(rolls)
with self.assertRaisesWithMessage(Exception):
game.roll(2)
# Utility functions
def assertRaisesWithMessage(self, exception):
return self.assertRaisesRegex(exception, r".+")
if __name__ == "__main__":
unittest.main()