@Test
public void testLoadPrevious() {
delegate = new TimelineDelegate<>(mockTimeline);
final Callback<TimelineResult<TestItem>> testCb =
delegate.new PreviousCallback(delegate.timelineStateHolder);
delegate.loadPrevious(TEST_MAX_POSITION, testCb);
verify(mockTimeline).previous(TEST_MAX_POSITION, testCb);
}
@Test
public void testLoadPrevious_respectsRequestInFlight() {
delegate = new TimelineDelegate<>(mockTimeline);
delegate.timelineStateHolder.startTimelineRequest();
final Callback<TimelineResult<TestItem>> mockCallback = mock(Callback.class);
delegate.loadPrevious(ANY_POSITION, mockCallback);
final ArgumentCaptor<TwitterException> exceptionCaptor =
ArgumentCaptor.forClass(TwitterException.class);
verifyZeroInteractions(mockTimeline);
verify(mockCallback).failure(exceptionCaptor.capture());
assertEquals(exceptionCaptor.getValue().getMessage(), REQUIRED_REQUEST_IN_FLIGHT_ERROR);
}
@Test
public void testLoadPrevious_respectsMaxCapacity() {
delegate = new TimelineDelegate<>(mockTimeline);
TestItem.populateList(delegate.itemList, TimelineDelegate.CAPACITY);
final Callback<TimelineResult<TestItem>> mockCallback = mock(Callback.class);
delegate.loadPrevious(ANY_POSITION, mockCallback);
final ArgumentCaptor<TwitterException> exceptionCaptor =
ArgumentCaptor.forClass(TwitterException.class);
verifyZeroInteractions(mockTimeline);
verify(mockCallback).failure(exceptionCaptor.capture());
assertEquals(exceptionCaptor.getValue().getMessage(), REQUIRED_MAX_CAPACITY_ERROR);
}