public void CancelingCurrencyChangeIsRespectedOnCommitEdit()
{
City first = new City { Name = "1" };
City second = new City { Name = "2" };
MockEntityContainer ec = new MockEntityContainer();
ec.CreateSet<City>(EntitySetOperations.All);
IPagedEntityList pagedList = new MockPagedEntityList(ec.GetEntitySet<City>(), null);
PagedEntityCollectionView view = new PagedEntityCollectionView(pagedList, () => { });
view.Add(first);
view.Add(second);
bool canChangeCurrency = true;
CurrentChangingEventHandler changingHandler = (sender, e) =>
{
if (!canChangeCurrency)
{
Assert.IsTrue(e.IsCancelable,
"Event should be cancelable when commiting an edit.");
e.Cancel = true;
}
};
EventHandler changedHandler = (sender, e) =>
{
if (!canChangeCurrency)
{
Assert.Fail("Currency changes should only occur when canChangeCurrency is true.");
}
};
view.CurrentChanging += changingHandler;
view.CurrentChanged += changedHandler;
view.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
Assert.IsTrue(view.MoveCurrentTo(second),
"We should be able to move current to the second item.");
// Commit an edit but do not allow the currency to change
canChangeCurrency = false;
view.EditItem(second);
second.Name = "0";
view.CommitEdit();
Assert.AreEqual(view[1], second,
"The edited item should not have moved.");
// Commit an edit and this time allow the currency to change
canChangeCurrency = true;
view.EditItem(second);
second.Name = "00";
view.CommitEdit();
Assert.AreEqual(view[0], second,
"The edited item should have moved to the first position in the view.");
}
public MockEntitySet(bool raiseCollectionChangedEvents)
: base(typeof(City))
{
this.RaiseCollectionChangedEvents = raiseCollectionChangedEvents;
MockEntityContainer container = new MockEntityContainer();
container.AddEntitySet(this, EntitySetOperations.All);
}
/// <summary>
/// Gets a <see cref="DomainDataSourceView"/> that uses a mocked <see cref="PagedEntityList"/>
/// as its source, configured to support the operations specified, and using the specified
/// <paramref name="refreshCallback"/> as the <see cref="Action"/> to invoke when a
/// <see cref="DomainDataSourceView.Refresh"/> is triggered.
/// </summary>
/// <param name="operationsSupported">The operations to be supported on the mock <see cref="EntitySet"/>.</param>
/// <param name="refreshCallback">The <see cref="Action"/> to call when a refresh occurs.</param>
/// <returns>The configured <see cref="DomainDataSourceView"/> that uses mocks.</returns>
private static DomainDataSourceView GetConfigurableView(EntitySetOperations operationsSupported, Action refreshCallback)
{
MockEntityContainer ec = new MockEntityContainer();
ec.CreateSet<City>(operationsSupported);
IPagedEntityList pagedList = new MockPagedEntityList(ec.GetEntitySet<City>(), null);
PagedEntityCollectionView ecv = new PagedEntityCollectionView(pagedList, refreshCallback);
return new DomainDataSourceView(ecv);
}
