public void Can_go_nearest()
{
MapPoint pt7 = PolygonConstruction.CreateMapPoint(7, 0, 0);
MapPoint pt10 = PolygonConstruction.CreateMapPoint(10, 0, 0);
MapPoint pt15 = PolygonConstruction.CreateMapPoint(15, 0, 0);
var item7 = new WorkItemMock(7, pt7);
var item10 = new WorkItemMock(10, pt10);
var item15 = new WorkItemMock(15, pt15);
var repository = new ItemRepositoryMock(new[] { item7, item10, item15 });
IWorkList wl = new MemoryQueryWorkList(repository, nameof(Can_go_nearest));
Geometry reference = PolygonConstruction.CreateMapPoint(11, 0, 0);
// go to item10
Assert.True(wl.CanGoNearest());
wl.GoNearest(reference);
Assert.AreEqual(item10, wl.Current);
Assert.True(wl.Current?.Visited);
// go to item7
Assert.True(wl.CanGoNearest());
Assert.NotNull(wl.Current);
wl.GoNearest(wl.Current.Extent);
Assert.AreEqual(item7, wl.Current);
Assert.True(wl.Current?.Visited);
// go to item15
Assert.True(wl.CanGoNearest());
Assert.NotNull(wl.Current);
wl.GoNearest(wl.Current.Extent);
Assert.AreEqual(item15, wl.Current);
Assert.True(wl.Current?.Visited);
// Now all are visited, what is the next item? None because there is no
// more item *after* the last item15.
// Now we need to go to item *before* the last one.
Assert.False(wl.CanGoNearest());
Assert.True(wl.CanGoPrevious());
wl.GoPrevious();
Assert.AreEqual(item10, wl.Current);
// Now we can go nearest again which is item7 (nearst to item10)
Assert.True(wl.CanGoNearest());
Assert.NotNull(wl.Current);
wl.GoNearest(wl.Current.Extent);
Assert.AreEqual(item7, wl.Current);
Assert.True(wl.Current?.Visited);
}
public void Can_go_previous()
{
IWorkItem item1 = new WorkItemMock(1);
IWorkItem item2 = new WorkItemMock(2);
IWorkItem item3 = new WorkItemMock(3);
IWorkItem item4 = new WorkItemMock(4);
var repository = new ItemRepositoryMock(new List <IWorkItem> {
item1, item2, item3, item4
});
IWorkList wl = new MemoryQueryWorkList(repository, "work list");
wl.GoNext();
Assert.AreEqual(item1, wl.Current);
Assert.True(wl.Current?.Visited);
wl.GoNext();
Assert.AreEqual(item2, wl.Current);
Assert.True(wl.Current?.Visited);
wl.GoNext();
Assert.AreEqual(item3, wl.Current);
Assert.True(wl.Current?.Visited);
// go previous
wl.GoPrevious();
Assert.AreEqual(item2, wl.Current);
Assert.True(wl.Current?.Visited);
// go previous again
wl.GoPrevious();
Assert.AreEqual(item1, wl.Current);
Assert.True(wl.Current?.Visited);
wl.GoNext();
Assert.AreEqual(item2, wl.Current);
Assert.True(wl.Current?.Visited);
}