def test_range():
assert caesar_cipher('abc', 25) == 'bcd'
assert caesar_cipher('abc', 26) == 'abc'
assert caesar_cipher('abc', 27) == 'zab'
for i in range(101):
assert caesar_cipher('abc', i)
assert caesar_cipher(
'abc', 200) == 'A integer larger than 100 was provided (0 <= k <= 100)'
def test_lowercase():
assert caesar_cipher('abc', 0) == 'abc'
assert caesar_cipher('abc', 1) == 'zab'
assert caesar_cipher('abc', 2) == 'yza'
def test_ascii():
assert caesar_cipher(
'строка',
0) == 'A non ascii character was found in the provided string'
def test_alphabet():
assert caesar_cipher(alphabet, 0) == alphabet
assert caesar_cipher(alphabet, 1) == alphabet[-1:] + alphabet[0:-1]
assert caesar_cipher(alphabet, 2) == alphabet[-2:] + alphabet[0:-2]
def test_symbols():
assert caesar_cipher('!@#$%^&*()_+', 0) == '!@#$%^&*()_+'
assert caesar_cipher('!@#$%^&*()_+', 1) == '!@#$%^&*()_+'
def test_numbers():
assert caesar_cipher('123', 0) == '123'
assert caesar_cipher('123 abc', 1) == '123 zab'
assert caesar_cipher('a1b2c3', 2) == 'y1z2a3'
def test_spaces():
assert caesar_cipher('a b c', 0) == 'a b c'
assert caesar_cipher(' abc ', 1) == ' zab '
assert caesar_cipher('a bc ', 2) == 'y za '
def test_mixed_case():
assert caesar_cipher('AbC', 0) == 'AbC'
assert caesar_cipher('aBc', 1) == 'zAb'
assert caesar_cipher('abC', 2) == 'yzA'
def test_uppercase():
assert caesar_cipher('ABC', 0) == 'ABC'
assert caesar_cipher('ABC', 1) == 'ZAB'
assert caesar_cipher('ABC', 2) == 'YZA'