public void Forward_button_is_enabled_if_more_pages()
{
var data = GetDummyData(10);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
Assert.IsTrue(observer.IsPageForwardButtonEnabled);
}
public void Back_button_is_disabled_when_no_more_pages()
{
var data = GetDummyData(5);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
Assert.IsFalse(observer.IsPageBackButtonEnabled);
}
public void Only_up_to_elementsPerPage_are_rendered_at_once()
{
var data = GetDummyData(10);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
var elements = observer.VisibleElements.ToList();
Assert.AreEqual(5, elements.Count);
}
public void Correct_list_slice_is_rendered_in_order()
{
var data = GetDummyData(10);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
var elements = observer.VisibleElements.ToList();
for (var i = 0; i < elements.Count; i++)
{
Assert.AreEqual(i, ((PaginatedListViewObserver.DummyElement)elements[i]).Index);
}
}
public void Paging_backwards_updates_rendered_data()
{
var data = GetDummyData(15);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
observer.TryPageForward();
observer.TryPageBackwards();
var elements = observer.VisibleElements.ToList();
for (var i = 0; i < elements.Count; i++)
{
Assert.AreEqual(i, ((PaginatedListViewObserver.DummyElement)elements[i]).Index);
}
}
public void Paging_forward_updates_rendered_data()
{
var data = GetDummyData(15);
var observer = new PaginatedListViewObserver(5);
observer.UpdateData(data);
observer.TryPageForward();
var elements = observer.VisibleElements.ToList();
for (var i = 0; i < elements.Count; i++)
{
var expectedIndex = i + 5; // We expect to be on the second page.
Assert.AreEqual(expectedIndex, ((PaginatedListViewObserver.DummyElement)elements[i]).Index);
}
}
