@Test public void cancelRemovesLayoutListener() throws Exception { ImageView target = mockFitImageViewTarget(true); ViewTreeObserver observer = target.getViewTreeObserver(); DeferredRequestCreator request = new DeferredRequestCreator(mock(RequestCreator.class), target); request.cancel(); verify(observer).removeOnPreDrawListener(request); }
@Test public void cancelSkipsIfViewTreeObserverIsDead() throws Exception { ImageView target = mockFitImageViewTarget(false); RequestCreator creator = mock(RequestCreator.class); DeferredRequestCreator request = new DeferredRequestCreator(creator, target); request.cancel(); verify(target.getViewTreeObserver(), never()).removeOnPreDrawListener(request); }
@Test public void cancelClearsCallback() throws Exception { ImageView target = mockFitImageViewTarget(true); Callback callback = mockCallback(); DeferredRequestCreator request = new DeferredRequestCreator(mock(RequestCreator.class), target, callback); assertThat(request.callback).isNotNull(); request.cancel(); assertThat(request.callback).isNull(); }
@Test public void waitsForAnotherLayoutIfWidthOrHeightIsZero() throws Exception { ImageView target = mockFitImageViewTarget(true); when(target.getWidth()).thenReturn(0); when(target.getHeight()).thenReturn(0); RequestCreator creator = mock(RequestCreator.class); DeferredRequestCreator request = new DeferredRequestCreator(creator, target); request.onPreDraw(); verify(target.getViewTreeObserver(), never()).removeOnPreDrawListener(request); verifyZeroInteractions(creator); }
@Test public void onLayoutSkipsIfViewTreeObserverIsDead() throws Exception { ImageView target = mockFitImageViewTarget(false); RequestCreator creator = mock(RequestCreator.class); DeferredRequestCreator request = new DeferredRequestCreator(creator, target); ViewTreeObserver viewTreeObserver = target.getViewTreeObserver(); request.onPreDraw(); verify(viewTreeObserver).addOnPreDrawListener(request); verify(viewTreeObserver).isAlive(); verifyNoMoreInteractions(viewTreeObserver); verifyZeroInteractions(creator); }
@Test public void onGlobalLayoutSubmitsRequestAndCleansUp() throws Exception { Picasso picasso = mock(Picasso.class); when(picasso.transformRequest(any(Request.class))).thenAnswer(TRANSFORM_REQUEST_ANSWER); RequestCreator creator = new RequestCreator(picasso, URI_1, 0); ImageView target = mockFitImageViewTarget(true); when(target.getWidth()).thenReturn(100); when(target.getHeight()).thenReturn(100); ViewTreeObserver observer = target.getViewTreeObserver(); DeferredRequestCreator request = new DeferredRequestCreator(creator, target); request.onPreDraw(); verify(observer).removeOnPreDrawListener(request); verify(picasso).enqueueAndSubmit(actionCaptor.capture()); Action value = actionCaptor.getValue(); assertThat(value).isInstanceOf(ImageViewAction.class); assertThat(value.getRequest().targetWidth).isEqualTo(100); assertThat(value.getRequest().targetHeight).isEqualTo(100); }