public void failsWhenMinimizedFilesUnavailable() throws Exception {
IGroupLoader loader = mock(IGroupLoader.class);
when(loader.getMinimizedResources()).thenReturn(new HashMap<ResourceType, String>());
when(wroConfig.getGroup(GROUP_NAME_FIRST)).thenReturn(new FilesGroup(GROUP_NAME_FIRST, loader));
IncludeTag tag = getIncludeTag();
tag.setGroupNames(GROUP_NAMES);
try {