import pytest
from tested_code import fibonacci, is_palindrome

def test_fibonacci():
    assert fibonacci(4) == 3
    assert fibonacci(7) == 13
    assert fibonacci(10) == 55

def test_is_palindrome():
    assert is_palindrome("А роза упала на лапу Азора") == True
    assert is_palindrome("Live not on evil") == True
    assert is_palindrome("Hello") == False