public void FindLast_VerifyDuplicates(int count)
{
T?expectedItem = default(T);
SegmentedList <T> list = GenericListFactory(count);
SegmentedList <T> beforeList = list.ToSegmentedList();
T?foundItem;
Predicate <T?> EqualsDelegate = (T? item) => { return(expectedItem == null ? item == null : expectedItem.Equals(item)); };
if (0 < count)
{
list.Add(beforeList[0]);
//[] Verify first item is duplicated
expectedItem = beforeList[0];
foundItem = list.FindLast(EqualsDelegate);
Assert.Equal(beforeList[0], foundItem); //"Err_2879072qaiadf Verify first item is duplicated FAILED\n"
}
if (1 < count)
{
list.Add(beforeList[1]);
//[] Verify second item is duplicated
expectedItem = beforeList[1];
foundItem = list.FindLast(EqualsDelegate);
Assert.Equal(beforeList[1], foundItem); //"Err_4588ajdia Verify second item is duplicated FAILED\n"
//[] Verify with match that matches more then one item
foundItem = list.FindLast((T item) => { return(item != null && (item.Equals(beforeList[0]) || item.Equals(beforeList[1]))); });
Assert.Equal(beforeList[1], foundItem); //"Err_4489ajodoi Verify with match that matches more then one item FAILED\n"
}
}
public void FindLast_VerifyVanilla(int count)
{
SegmentedList <T?> list = GenericListFactory(count) !;
SegmentedList <T?> beforeList = list.ToSegmentedList();
T?expectedItem = default(T);
T?foundItem;
Predicate <T?> EqualsDelegate = (T? item) => { return(expectedItem == null ? item == null : expectedItem.Equals(item)); };
for (int i = 0; i < count; ++i)
{
list.Add(beforeList[i]);
}
//[] Verify FindLast returns the correct item
for (int i = 0; i < count; ++i)
{
expectedItem = beforeList[i];
foundItem = list.FindLast(EqualsDelegate);
Assert.Equal(expectedItem, foundItem); //"Err_282308ahid Verifying value returned from find FAILED\n"
}
//[] Verify FindLast returns the last item if the match returns true on every item
foundItem = list.FindLast(_alwaysTrueDelegate);
T?expected = 0 < count ? beforeList[count - 1] : default(T);
Assert.Equal(expected, foundItem); //"Err_548ahid Verify FindLast returns the last item if the match returns true on every item FAILED\n"
//[] Verify FindLast returns default(T) if the match returns false on every item
foundItem = list.FindLast(_alwaysFalseDelegate);
Assert.Equal(default(T), foundItem); //"Err_30848ahidi Verify FindLast returns t.default if the match returns false on every item FAILED\n"
//[] Verify with default(T)
list.Add(default(T));
foundItem = list.FindLast((T? item) => { return(item == null ? default(T) == null : item.Equals(default(T))); });
Assert.Equal(default(T), foundItem); //"Err_541848ajodi Verify with default(T) FAILED\n"
list.RemoveAt(list.Count - 1);
}
