public void ObserveHistoryOnReset()
{
// Arrange
var initialState = CreateInitialTodoListState();
var store = new TodoListStore(
Setup.TodoListStore.Reducers.CreateReducers(),
initialState,
true
);
// Act
int observeCount = 0;
ReduxHistory <TodoListState>?lastHistory = null;
store.ObserveHistory()
.Subscribe(history =>
{
observeCount++;
lastHistory = history;
});
DispatchAllActions(store);
store.Reset();
// Assert
observeCount.ShouldBe(5);
var previousState = lastHistory?.PreviousStates.ShouldHaveSingleItem();
previousState?.Action.ShouldBeOfType <InitializeStoreAction>();
lastHistory?.FutureActions.ShouldBeEmpty();
}
public void ObserveHistoryOnReset()
{
// Arrange
var initialState = CreateInitialTodoListState();
var store = new TodoListStore(
Setup.TodoListStore.Reducers.CreateReducers(),
initialState,
true
);
// Act
int observeCount = 0;
ReduxHistory <TodoListState> lastHistory = null;
store.ObserveHistory()
.Subscribe(history =>
{
observeCount++;
lastHistory = history;
});
DispatchAllActions(store);
store.Reset();
// Assert
Assert.Equal(5, observeCount);
Assert.Single(lastHistory.PreviousStates);
Assert.IsType <InitializeStoreAction>(lastHistory.PreviousStates[0].Action);
Assert.Empty(lastHistory.FutureActions);
}
private ImmutableList <HistoryRecord> _selectHistoryRecords <T>(ReduxHistory <T> history, T currentState)
where T : class, IImmutable, new()
{
var mementosOrderedByDate = history.PreviousStates
.OrderBy(memento => memento.Date)
.ToList();
var res = mementosOrderedByDate.Select((memento, index) => new HistoryRecord {
Date = memento.Date,
Action = memento.Action,
PreviousState = memento.PreviousState,
NextState = index < mementosOrderedByDate.Count - 1
? mementosOrderedByDate[index + 1].PreviousState
: currentState
}).ToImmutableList();
return(res);
}
