/** Test that number of "unknown" classes is propagated across multiple copies. */
@Test
@SuppressWarnings("deprecation")
public void testForeignClass() {
SortedMapWritable inMap = new SortedMapWritable();
inMap.put(new Text("key"), new UTF8("value"));
inMap.put(new Text("key2"), new UTF8("value2"));
SortedMapWritable outMap = new SortedMapWritable(inMap);
SortedMapWritable copyOfCopy = new SortedMapWritable(outMap);
assertEquals(1, copyOfCopy.getNewClasses());
}
