def test_should_initialize_correctly(self):
effect = Effect.empty(8)
assert 8 == len(effect)
def test_should_return_number_of_specific_components_2(self):
effect = Effect.empty(8)
effect[1] = '1'
assert 1 == effect.number_of_specified_elements
def test_should_set_effect_with_non_string_char(self):
effect = Effect.empty(8)
with pytest.raises(TypeError):
effect[0] = 1
def test_should_return_number_of_specific_components_1(self):
effect = Effect.empty(8)
assert 0 == effect.number_of_specified_elements