public void PagingPastEndSkippingLastPageKnownTotalItemCount()
{
Catalog context = new Catalog();
EnqueueCallback(() =>
{
this._dds.PageSize = 5;
this._dds.QueryName = "GetPurchaseOrdersQuery";
this._dds.DomainContext = context;
this._dds.Load();
});
this.AssertLoadingData();
this.AssertPageChanged();
int totalItemCount = 0;
EnqueueCallback(() =>
{
this.ResetLoadState();
this.ResetPageChanged();
Assert.AreEqual(5, this._view.Count, "Count after the initial load");
Assert.AreEqual(0, this._view.PageIndex, "PageIndex after the initial load");
Assert.IsTrue(this._view.TotalItemCount > this._view.Count, "After the initial load, TotalItemCount is expected to be greater than the Count");
Assert.IsTrue(this._view.PageCount > 0, "After the initial load, PageCount is expected to be greater than 0");
totalItemCount = this._view.TotalItemCount;
// Move well beyond the end
this._view.MoveToPage(this._view.PageCount + 100);
});
this.AssertLoadingData(2);
this.AssertPageChanged();
EnqueueCallback(() =>
{
this.ResetLoadState();
this.ResetPageChanged();
int countOnLastPage = this._view.TotalItemCount % this._view.PageSize;
if (countOnLastPage == 0)
{
countOnLastPage = this._view.PageSize;
}
Assert.AreEqual(countOnLastPage, this._view.Count, "Count after changing page");
Assert.AreEqual(PagingHelper.CalculatePageCount(this._view.TotalItemCount, this._view.PageSize) - 1, this._view.PageIndex, "PageIndex after changing page");
Assert.AreEqual(totalItemCount, this._view.TotalItemCount, "TotalItemCount after changing page");
});
EnqueueTestComplete();
}
public void PageCount()
{
DomainDataSource dds = new DomainDataSource();
dds.QueryName = "GetPurchaseOrdersQuery";
dds.DomainContext = new Catalog();
int pageCountChanged = 0;
((INotifyPropertyChanged)dds.DataView).PropertyChanged += (sender, e) =>
{
if (e.PropertyName == "PageCount")
{
pageCountChanged++;
}
};
Assert.AreEqual(0, dds.DataView.PageCount, "Page count should be 0 by default");
dds.PageSize = 5;
Assert.AreEqual(1, dds.DataView.PageCount, "Page count should be 1 once PageSize is set");
Assert.AreEqual(1, pageCountChanged, "The PageCount should have changed.");
pageCountChanged = 0;
bool loaded = false;
dds.Load();
dds.LoadedData += (sender, e) => loaded = true;
this.EnqueueConditional(() => loaded);
this.EnqueueCallback(() =>
{
Assert.AreEqual(5, dds.DataView.Count, "Count after the initial load");
Assert.AreEqual(0, dds.DataView.PageIndex, "PageIndex after the initial load");
Assert.IsTrue(dds.DataView.TotalItemCount > dds.DataView.Count, "After the initial load, TotalItemCount should be greater than Count");
Assert.AreEqual(PagingHelper.CalculatePageCount(dds.DataView.TotalItemCount, dds.DataView.PageSize), dds.DataView.PageCount, "PageCount after the initial load");
Assert.AreEqual(1, pageCountChanged, "The PageCount should have changed.");
});
this.EnqueueTestComplete();
}