def test_check_palindrome():
assert check_palindrome('') == True
assert check_palindrome('ete') == True
assert check_palindrome('kayak') == True
assert check_palindrome('aaaaaaaaaa') == True
assert check_palindrome('aaabbbaaa') == True
assert check_palindrome('abc') == False
def test_check_even_num_nodes(self):
self.assertTrue(check_palindrome(self.lst3))
self.assertFalse(check_palindrome(self.lst4))
def test_check_odd_num_nodes(self):
self.assertTrue(check_palindrome(self.lst1))
self.assertFalse(check_palindrome(self.lst2))
def test_palindrome(self):
"""Test a palindrome returns true."""
word = "aabaa"
assert check_palindrome(word)
def test_non_palindrome(self):
"""Test a word which isn't a palindrome returns false."""
word = "asdkaoskgo"
assert not check_palindrome(word)
print("\nREVERSE STRING")
print(reverse_string("hello world !"))
print("\nREVERSE NUMBER (OPPOSITE)")
print(reverse_number(123))
print(reverse_number(-4930))
print("\nREVERSE DIGIT ")
print(reverse_digits(345))
print("\nNUMBER OF WORDS")
print("sentence = Hello World whats up")
print(number_of_words("Hello World whats up"))
print("\nAVERAGE WORD LENGTH")
print("sentence = Hi guys how are you")
print(average_word_length("Hi guys how are you"))
print("\nCHECK PALINDROME")
print("check on 'kayak' and 'oayo'")
print(check_palindrome('kayak'))
print(check_palindrome("oayo"))
print("\nCHECK DUPLICATES")
