def test_all():
"""
Large test that calls all functions.
:return: None
"""
print("Testing all functionality")
dna_seq1 = dna.convert_to_nodes("ATGCCAATGC")
dna_seq2 = dna.deletion(dna_seq1, 3, 5)
dna_seq3 = dna.duplication(dna_seq2, 0, 3)
dna_seq4 = dna.convert_to_nodes("CC")
dna_seq5 = dna.insertion(dna_seq3, dna_seq4, 3)
dna_seq6 = dna.substitution(dna_seq5, 7, "T")
dna_seq7 = dna.substitution(dna_seq6, 6, "A")
print(dna.is_match(dna_seq1, dna_seq7), end=" ")
dna_seq8 = dna.insertion(dna_seq3, dna_seq4, 0)
dna_seq9 = dna.deletion(dna_seq8, 2, 2)
dna_seq10 = dna.substitution(dna_seq9, 6, "C")
dna_seq11 = dna.substitution(dna_seq10, 3, "T")
print(dna.is_palindrome(dna_seq11), end=" ")
dna_seq12 = dna.convert_to_nodes("TACG")
dna_seq13 = dna.duplication(dna_seq12, 0, 4)
dna_seq14 = dna.duplication(dna_seq13, 3, 1)
dna_seq15 = dna.duplication(dna_seq14, 5, 1)
print(dna.is_pairing(dna_seq1, dna_seq15), end=" ")
print(dna.convert_to_string(dna_seq11) == "CCGTTGCC")
def test5():
"""
Tests is_palindrome function.
:return: None
"""
print("Test5: testing is_palindrome")
dna_seq = None
print(dna.is_palindrome(dna_seq) == True, end=" ")
dna_seq = linked_code.insert_at(0, "A", dna_seq)
print(dna.is_palindrome(dna_seq) == True, end=" ")
dna_seq = linked_code.insert_at(0, "T", dna_seq)
print(dna.is_palindrome(dna_seq) == False, end=" ")
dna_seq = linked_code.remove_at(0, dna_seq)
dna_seq = linked_code.insert_at(0, "A", dna_seq)
print(dna.is_palindrome(dna_seq) == True, end=" ")
dna_seq = linked_code.insert_at(1, "G", dna_seq)
print(dna.is_palindrome(dna_seq) == True, end=" ")
dna_seq = linked_code.insert_at(2, "T", dna_seq)
print(dna.is_palindrome(dna_seq) == False)