@Test
public void testCompositeInsertsToAllCaches() {

	DiskCache cache1 = Mockito.mock(DiskCache.class);
	DiskCache cache2 = Mockito.mock(DiskCache.class);
	DiskCache cache3 = Mockito.mock(DiskCache.class);
	CompositeDiskCache cache = new CompositeDiskCache(cache1, cache2, cache3);
	cache.put("", null);
	Mockito.verify(cache1, Mockito.times(1)).put(Mockito.anyString(), (DiskCache.Writer)Mockito.any());
	Mockito.verify(cache2, Mockito.times(1)).put(Mockito.anyString(), (DiskCache.Writer)Mockito.any());
	Mockito.verify(cache3, Mockito.times(1)).put(Mockito.anyString(), (DiskCache.Writer)Mockito.any());
}