@Test public void waitsForAnotherLayoutIfWidthOrHeightIsZero() { 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, null); request.onPreDraw(); verify(target.getViewTreeObserver(), never()).removeOnPreDrawListener(request); verifyZeroInteractions(creator); }
@Test public void onLayoutSkipsIfViewIsAttachedAndViewTreeObserverIsDead() { ImageView target = mockFitImageViewTarget(false); RequestCreator creator = mock(RequestCreator.class); DeferredRequestCreator request = new DeferredRequestCreator(creator, target, null); ViewTreeObserver viewTreeObserver = target.getViewTreeObserver(); request.onPreDraw(); verify(viewTreeObserver).addOnPreDrawListener(request); verify(viewTreeObserver).isAlive(); verifyNoMoreInteractions(viewTreeObserver); verifyZeroInteractions(creator); }
@Test public void preDrawSubmitsRequestAndCleansUp() { 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, null); request.onPreDraw(); verify(observer).removeOnPreDrawListener(request); verify(picasso).enqueueAndSubmit(actionCaptor.capture()); Action value = actionCaptor.getValue(); assertThat(value).isInstanceOf(ImageViewAction.class); assertThat(value.request.targetWidth).isEqualTo(100); assertThat(value.request.targetHeight).isEqualTo(100); } }