def test_move():
assert Scrambler.do('move position 2 to position 4', 'abcde') == 'abdec'
assert Scrambler.do('move position 4 to position 2', 'abcde') == 'abecd'
assert Scrambler.do('move position 2 to position 4', 'abdec',
reverse=True) == 'abcde'
assert Scrambler.do('move position 4 to position 2', 'abecd',
reverse=True) == 'abcde'
def test_do_all():
operations = [
'swap position 4 with position 0', 'swap letter d with letter b',
'reverse positions 0 through 4', 'rotate left 1 step',
'move position 1 to position 4', 'move position 3 to position 0',
'rotate based on pposition of letter b',
'rotate based on position of letter d'
]
assert Scrambler.do_all(operations, 'abcde') == 'decab'
assert Scrambler.do_all(operations, 'decab', reverse=True) == 'abcde'
def test_rotate_based_on_position():
assert Scrambler.do('rotate based on position of letter a',
'abcde') == 'eabcd'
assert Scrambler.do('rotate based on position of letter b',
'abcde') == 'deabc'
assert Scrambler.do('rotate based on position of letter e',
'abcde') == 'eabcd'
assert Scrambler.do('rotate based on position of letter a',
'eabcd',
reverse=True) == 'abcde'
assert Scrambler.do('rotate based on position of letter b',
'deabc',
reverse=True) == 'abcde'
assert Scrambler.do('rotate based on position of letter e',
'eabcd',
reverse=True) == 'abcde'
def test_rotate_left():
assert Scrambler.do('rotate left 3 steps', 'abcde') == 'deabc'
assert Scrambler.do('rotate left 4 steps', 'abcde') == 'eabcd'
assert Scrambler.do('rotate left 5 steps', 'abcde') == 'abcde'
assert Scrambler.do('rotate left 3 steps', 'deabc',
reverse=True) == 'abcde'
def test_reverse():
assert Scrambler.do('reverse positions 1 through 3', 'abcde') == 'adcbe'
assert Scrambler.do('reverse positions 1 through 3', 'abcde',
reverse=True) == 'adcbe'
def test_swap_letter():
assert Scrambler.do('swap letter c with letter d', 'abcde') == 'abdce'
assert Scrambler.do('swap letter c with letter d', 'abdce',
reverse=True) == 'abcde'
def test_swap_position():
assert Scrambler.do('swap position 2 with position 0', 'abcde') == 'cbade'
assert Scrambler.do('swap position 2 with position 0',
'cbade',
reverse=True) == 'abcde'
def test_rotate_right():
assert Scrambler.do('rotate right 3 steps', 'abcde') == 'cdeab'
assert Scrambler.do('rotate right 3 steps', 'cdeab',
reverse=True) == 'abcde'
from day21.scrambler import Scrambler
with open('input.txt') as f:
operations = [line[:-1] for line in f.readlines() if len(line) > 0]
print(Scrambler.do_all(operations, 'abcdefgh'))
print(Scrambler.do_all(operations, 'fbgdceah', reverse=True))