@Test
public void putForNonEmptyFile()
{

    ContentReader contentReader = Mockito.mock(ContentReader.class);
    Mockito.when(contentReader.getSize()).thenReturn(999000L);
    final String url = "store://some/url.bin";
    boolean putResult = contentCache.put(url, contentReader);
    
    assertTrue("Non-empty files should be cached", putResult);
    ArgumentCaptor<File> cacheFileArg = ArgumentCaptor.forClass(File.class);
    Mockito.verify(contentReader).getContent(cacheFileArg.capture());
    // Check cached item is recorded properly in ehcache
    Mockito.verify(lookupTable).put(Key.forUrl(url), cacheFileArg.getValue().getAbsolutePath());
    Mockito.verify(lookupTable).put(Key.forCacheFile(cacheFileArg.getValue().getAbsolutePath()), url);
}