def test_when_max_bytes_not_a_number(self):
self.file.write('.\n1\na')
self.file.seek(0)
with self.assertRaisesRegex(
ValueError, 'expected a positive integer .* at line 3: a'):
Level.fromfile(self.file, nrows=1, ncols=1)
def test_when_too_many_robots(self):
self.file.write('.u.\n..d\n1\n1')
self.file.seek(0)
with self.assertRaisesRegex(ValueError,
'too many robots, .* \(2, 3\)'):
Level.fromfile(self.file, nrows=2, ncols=3)
def test_when_points_non_positive(self):
self.file.write('.\n0\n1')
self.file.seek(0)
with self.assertRaisesRegex(
ValueError, 'expected a positive integer .* at line 2: 0'):
Level.fromfile(self.file, nrows=1, ncols=1)
def test_when_line_too_long(self):
self.file.write('.\n..\n.')
self.file.seek(0)
with self.assertRaisesRegex(ValueError,
'line 2 is not 1 character long'):
Level.fromfile(self.file, nrows=3, ncols=1)
def test_when_line_too_short(self):
self.file.write('.\n..')
self.file.seek(0)
with self.assertRaisesRegex(ValueError,
'line 1 is not 2 characters long'):
Level.fromfile(self.file, nrows=2, ncols=2)
def test_when_illegal_character(self):
self.file.write('.\n.\nS')
self.file.seek(0)
with self.assertRaisesRegex(ValueError,
'illegal character found at line 3'):
Level.fromfile(self.file, nrows=3, ncols=1)
def test_when_max_bytes_too_large(self):
self.file.write('.\n1\n1000')
self.file.seek(0)
with self.assertRaisesRegex(
ValueError,
'expected a positive integer in the range \[1, 1000\) at line 3: 1000'
):
Level.fromfile(self.file, nrows=1, ncols=1)
def test_when_file_ends_with_a_newline(self):
self.file.write('10\n')
self.file.seek(0)
level = Level.fromfile(self.file, nrows=13, ncols=7)
self.assertEqual(level.nrows, 13)
self.assertEqual(level.ncols, 7)
self.assertEqual(level.points, 1000)
self.assertEqual(level.max_bytes, 10)
self.assertEqual(level.robot, (10, 3, 'u'))
self.assertEqual(len(level.gray_buttons), 1)
self.assertTrue((5, 3) in level.gray_buttons)
self.assertEqual(len(level.white_buttons), 4)
self.assertTrue((1, 3) in level.white_buttons)
self.assertTrue((3, 3) in level.white_buttons)
self.assertTrue((7, 3) in level.white_buttons)
self.assertTrue((9, 3) in level.white_buttons)
self.assertEqual(len(level.walls), 3)
self.assertEqual(len(level.inaccessible_spots), 7)
self.assertTrue((9, 2) in level.inaccessible_spots)
self.assertTrue((9, 4) in level.inaccessible_spots)
self.assertTrue((10, 2) in level.inaccessible_spots)
self.assertTrue((10, 4) in level.inaccessible_spots)
self.assertTrue((11, 2) in level.inaccessible_spots)
self.assertTrue((11, 3) in level.inaccessible_spots)
self.assertTrue((11, 4) in level.inaccessible_spots)
def test_example1(self):
file = io.StringIO()
file.write('.r.wwwwwwwwwwwwwwwwwwww.\n')
file.write('100\n')
file.write('10\n')
file.seek(0)
level = Level.fromfile(file, nrows=1, ncols=24)
re = level()
for _ in range(25):
re.step('s')
# points = 100
# max_bytes = 10
# total_buttons = 20
# buttons = 20
# bytes = 10
self.assertEqual(re.score(10), 100)
# bytes = 5
self.assertEqual(re.score(5), 200)
# bytes = 15
self.assertEqual(re.score(15), 20)
file.close()
def test_when_file_does_not_end_with_a_newline(self):
self.file.write('10')
self.file.seek(0)
level = Level.fromfile(self.file, nrows=13, ncols=7)
self.assertEqual(level.points, 1000)
self.assertEqual(level.max_bytes, 10)
def setUp(self):
file = self.file = io.StringIO()
file.write('..........\n')
file.write('.***......\n')
file.write('.*r.w.g.w.\n')
file.write('.***......\n')
file.write('..........\n')
file.write('50\n')
file.write('11')
file.seek(0)
level = Level.fromfile(file, nrows=5, ncols=10)
# N.B. The sequence of commands "sslsrssssrs"
# can be used to complete the level.
self.re = level()
def test_when_empty_line(self):
self.file.write('.\n\n.')
self.file.seek(0)
with self.assertRaisesRegex(ValueError, 'line 2 is an empty line'):
Level.fromfile(self.file, nrows=3, ncols=1)
def test_when_less_lines(self):
self.file.write('.\n.\n')
self.file.seek(0)
with self.assertRaisesRegex(ValueError, 'expected 3 lines but got 2'):
Level.fromfile(self.file, nrows=3, ncols=1)
def test_when_ncols_non_positive(self):
with self.assertRaisesRegex(ValueError,
'columns .* greater than or equal to 1'):
Level.fromfile(self.file, ncols=0)
def test_when_no_robot(self):
self.file.write('..****.\n1\n1')
self.file.seek(0)
with self.assertRaisesRegex(ValueError, 'no robot found'):
Level.fromfile(self.file, nrows=1, ncols=7)
def test_when_improper_wall(self):
self.file.write('..**.*.\n1\n1')
self.file.seek(0)
with self.assertRaisesRegex(ValueError, 'improper wall at \(1, 6\)'):
Level.fromfile(self.file, nrows=1, ncols=7)