# with fixtures

@pytest.fixture()
def give_me_alphabet_twice():
    return string.ascii_lowercase * 2

def test_remove_all_a(give_me_alphabet_twice):
    assert 'a' not in remove_all_a(give_me_alphabet_twice)

def test_remove_all_b(give_me_alphabet_twice):
    assert 'b' not in remove_all_b(give_me_alphabet_twice)

########################################
# without fixtures

def give_me_alphabet_thirce():
    return string.ascii_lowercase * 3

def test_remove_all_a_again():
    assert 'a' not in remove_all_a(give_me_alphabet_thirce())

def test_remove_all_b_again():
    assert 'b' not in remove_all_b(give_me_alphabet_thirce())