public void ListViewGroupCollection_Insert_InvalidIndex_ThrowsArgumentOutOfRangeException(int index)
{
using var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
Assert.Throws <ArgumentOutOfRangeException>("index", () => collection.Insert(index, new ListViewGroup()));
}
public void ListViewGroupCollection_Insert_NullGroup_ThrowsArgumentNullException(int index)
{
using var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
collection.Add(new ListViewGroup());
Assert.Throws <ArgumentNullException>("group", () => collection.Insert(index, null));
}
public void ListViewGroupCollection_Insert_ListViewGroup_Success()
{
using var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
var group = new ListViewGroup();
collection.Add(new ListViewGroup());
collection.Insert(1, group);
Assert.Equal(2, collection.Count);
Assert.Same(group, collection[1]);
Assert.Same(listView, group.ListView);
}
public void ListViewGroupCollection_Insert_SetAlreadyInCollection_Nop(int index)
{
using var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
var group1 = new ListViewGroup();
var group2 = new ListViewGroup();
collection.Add(group1);
collection.Add(group2);
collection.Insert(index, group2);
Assert.Same(group1, collection[0]);
}
public void ListViewGroupCollection_Insert_ListViewGroupWithHandle_Success()
{
var listView = new ListView();
Assert.NotEqual(IntPtr.Zero, listView.Handle);
ListViewGroupCollection collection = listView.Groups;
var group = new ListViewGroup();
collection.Add(new ListViewGroup());
collection.Insert(1, group);
Assert.Equal(2, collection.Count);
Assert.Same(group, collection[1]);
Assert.Same(listView, group.ListView);
}
public void ListViewGroupCollection_Insert_HasItemsFromOtherListView_ThrowsArgumentException()
{
var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
var otherListView = new ListView();
var item = new ListViewItem();
var group = new ListViewGroup();
group.Items.Add(item);
otherListView.Items.Add(item);
Assert.Throws <ArgumentException>(null, () => collection.Insert(0, group));
Assert.Empty(collection);
}
public void ListViewGroupCollection_Insert_ListViewGroupWithItems_Success()
{
using var listView = new ListView();
var item = new ListViewItem();
ListViewGroupCollection collection = listView.Groups;
var group = new ListViewGroup();
group.Items.Add(new ListViewItem());
group.Items.Add(item);
listView.Items.Add(item);
collection.Insert(0, group);
Assert.Same(group, Assert.Single(collection));
Assert.Same(listView, group.ListView);
}
public void ListViewGroupCollection_Insert_SetHasItemsFromOtherListView_Success()
{
var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
collection.Add(new ListViewGroup());
var otherListView = new ListView();
var item = new ListViewItem();
var group = new ListViewGroup();
group.Items.Add(item);
otherListView.Items.Add(item);
collection.Insert(0, group);
Assert.Same(group, collection[0]);
Assert.Same(listView, group.ListView);
}
public void ListViewGroupCollection_Insert_ListViewGroupWithItemsWithHandle_Success()
{
var listView = new ListView();
Assert.NotEqual(IntPtr.Zero, listView.Handle);
var item = new ListViewItem();
ListViewGroupCollection collection = listView.Groups;
var group = new ListViewGroup();
group.Items.Add(new ListViewItem());
group.Items.Add(item);
listView.Items.Add(item);
collection.Insert(0, group);
Assert.Same(group, Assert.Single(collection));
Assert.Same(listView, group.ListView);
}
public void ListViewGroupCollection_Insert_AlreadyInOtherCollection_GetReturnsExpected()
{
using var listView = new ListView();
ListViewGroupCollection collection = listView.Groups;
collection.Add(new ListViewGroup());
using var otherListView = new ListView();
ListViewGroupCollection otherCollection = otherListView.Groups;
var group = new ListViewGroup();
otherCollection.Add(group);
// The group appears to belong to two list views.
collection.Insert(0, group);
Assert.Same(group, collection[0]);
Assert.Same(listView, group.ListView);
Assert.Equal(group, collection[0]);
Assert.Equal(group, Assert.Single(otherCollection));
}