def test_wrong_file(): assert not check_file('tests/wrong_file.txt')
def test_no_dot(): assert not check_file('tests/test2.txt')
def test_ok(): assert check_file('tests/test1.txt')
def test_long_names(): assert check_file('tests/test10.txt')
def test_no_balance(): assert not check_file('tests/test8.txt')
def test_unknown_symbol(): assert not check_file('tests/test9.txt')
def test_empty_file(): assert check_file('tests/test7.txt')
def test_not_enough_args(): assert not check_file('tests/test6.txt')
def test_no_body(): assert not check_file('tests/test5.txt')
def test_no_head(): assert not check_file('tests/test4.txt')
def test_no_dot_2(): assert not check_file('tests/test3.txt')