def test_task1(file_name, result):
r = solve_task1(file_name)
assert r == result, f"{file_name} failed. It returned with {r} instead of {result}."
def test_solve_task1(input_numbers, the_2020th_number):
output = solve_task1(input_numbers)
assert the_2020th_number == output, f"Result should be {the_2020th_number} instead of {output}."