def test_combine_reducer_will_split_the_state_tree_in_sections_per_reducer_single(
self):
combined = combine_reducer([a_reducer])
action_obj = "unittest"
expected_state = pmap({"a_reducer": pmap({"actionA": action_obj})})
actual_state = combined(action=action_obj)
self.assertEqual(expected_state, actual_state)
def test_combined_reducer_will_not_change_the_state_if_nothing_to_do(self):
action = ActionMock("ignore_action")
combined = combine_reducer([e_reducer, d_reducer])
initial_state = combined(action=action)
untransformed_state = combined(action, initial_state)
self.assertTrue(
initial_state is untransformed_state,
"State object has not the same reference! It must be updated!")
def test_combined_reducer_returns_new_state_object_when_one_part_tree_changes(
self):
initial_action = ActionMock("ignore_action")
action = ActionMock("do")
combined = combine_reducer([e_reducer, d_reducer])
initial_state = combined(action=initial_action)
transformed_state = combined(action, initial_state)
self.assertTrue(
initial_state is not transformed_state,
"State object has not the same reference! It must be updated!")
def test_combine_reducer_create_one_part_tree_per_reducer(self):
reducer_list = [a_reducer, b_reducer]
combined = combine_reducer(reducer_list)
action_obj = {"2": 3}
actual_state = combined(action=action_obj)
expected_state = pmap({
"a_reducer": {
"actionA": action_obj
},
"b_reducer": {
"actionB": action_obj
}
})
self.assertEqual(expected_state, actual_state)
def test_all_reducers_will_have_their_initial_state(self):
def a_init_reducer(action=None, state=pmap({1: "a"})):
return state
def b_init_reducer(action=None, state=pmap({2: "b"})):
return state
combined = combine_reducer({
"a_r": a_init_reducer,
"b_r": b_init_reducer
})
new_state = combined(action="init_unittest")
expected_state = pmap({"a_r": pmap({1: "a"}), "b_r": pmap({2: "b"})})
self.assertEqual(expected_state, new_state)
@counter_reducer.register(DEC_COUNTER)
def _(action, state):
return state.set('count', state['count'] - 1)
@counter_reducer.register(SET_COUNTER)
def _(action, state):
return state.set('count', action.payload)
@counter_reducer.register(ADD_COUNTER)
def _(action, state):
return state.set('count', state['count'] + action.payload)
mystore = create_store(combine_reducer([counter_reducer, todo_reducer]))
def subscriber(s):
pprint(thaw(s.state), indent=2)
mystore.subscribe(subscriber)
s1 = mystore.dispatch(SET_COUNTER(0))
s1 = mystore.dispatch(ADD_COUNTER(100))
for _ in range(10):
s1 = mystore.dispatch(INC_COUNTER())
s2 = mystore.dispatch(ADD_TODO("Say hello to the world"))
def test_state_split_keys_can_be_changed_through_dict(self):
combined = combine_reducer({"a": a_reducer, "b": b_reducer})
initial_state = combined(action={"unittest": "ignore"})
self.assertItemsEqual(["a", "b"], initial_state.keys())
def test_combine_reducer_will_make_subtree_states_by_method_name(self):
combined = combine_reducer([a_reducer, ReducerKlass().c_reducer])
initial_state = combined(action="zz!!")
self.assertItemsEqual(["a_reducer", "c_reducer"], initial_state.keys())
def test_combine_reducer_will_make_subtree_states_by_function_name(self):
combined = combine_reducer([a_reducer, b_reducer])
initial_state = combined(action="asdf")
self.assertItemsEqual(["a_reducer", "b_reducer"], initial_state.keys())
def test_combine_reducer_returns_function(self):
combined = combine_reducer([a_reducer, b_reducer])
self.assertTrue(inspect.isfunction(combined),
"combine_reducer does not return a function")
