@Test
public void register() {
updater.register();
triggerScrollbarSelectionChange(10);
verify(updater).update();
}
@Test
public void updateWithoutItems() throws Exception {
equipWithItems(timeline, new Item("id", 20L) {});
updater.update();
verify(timeline, never()).setTopItem(any(Item.class));
}
@Test
public void updateIfAboveTop() throws Exception {
Item item = equipItemListWithItem();
getItemUiControl(item).setLocation(0, fromTopOffset(-1));
updater.update();
verify(timeline, never()).setTopItem(item);
}
@Test
public void updateIfBelowTopWithEqualTopItem() throws Exception {
Item item = equipItemListWithItem();
equipWithTopItem(timeline, item);
getItemUiControl(item).setLocation(0, fromTopOffset(1));
updater.update();
verify(timeline, never()).setTopItem(item);
}
@Test
public void updateIfBelowTopWithDifferentTopItem() throws Exception {
Item item = equipItemListWithItem();
equipWithTopItem(timeline, new Item("other", 30L) {});
getItemUiControl(item).setLocation(0, fromTopOffset(1));
updater.update();
verify(timeline).setTopItem(item);
}
@Test
public void updateIfItemUiControlIsNotShowing() throws Exception {
Item item = equipWithItems(timeline, new Item("id", 20L) {});
SwtItemUi<Item> itemUi = stubItemUi(displayHelper.createShell());
map(itemUiMap, item, itemUi);
getItemUiControl(item).setLocation(0, fromTopOffset(1));
updater.update();
verify(timeline, never()).setTopItem(item);
}
@Test
public void updateWithoutItemUi() throws Exception {
updater.update();
verify(timeline, never()).setTopItem(any(Item.class));
}