def test_func_negative():
"""Test negative cases"""
nose.tools.assert_equals(longest_pal(''), '0')
nose.tools.assert_equals(
longest_pal(
'12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901'
), 'String should not be longer than 100 characters.')
def test_func():
"""Test for positive results"""
nose.tools.assert_equals(
longest_pal(
'1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890'
), '1')
nose.tools.assert_equals(longest_pal('1234567890'), '1')
nose.tools.assert_equals(longest_pal('0'), '1')
nose.tools.assert_equals(longest_pal('banana'), '5')
nose.tools.assert_equals(longest_pal('-5-5-5'), '5')
nose.tools.assert_equals(longest_pal('try this one'), '1')
def test_func():
"""Test with given input"""
assert longest_pal("Test sequence qwqwq") == "5"
def test_fibo(inputs, palindrom_length):
"""Test with different inputs."""
assert longest_pal(inputs) == palindrom_length
def test_errors(inputs, ouputs):
"""Test of raising exceptions."""
assert longest_pal(inputs) == ouputs