### Question:
SerializedKeyValueIterator implements KeyValueIterator<K, V> { @Override public boolean hasNext() { return bytesIterator.hasNext(); } SerializedKeyValueIterator(final KeyValueIterator<Bytes, byte[]> bytesIterator,
                               final StateSerdes<K, V> serdes); @Override void close(); @Override K peekNextKey(); @Override boolean hasNext(); @Override KeyValue<K, V> next(); @Override void remove();  }### Answer:
@Test public void shouldReturnFalseOnHasNextWhenNoMoreResults() throws Exception { advanceIteratorToEnd(); assertFalse(serializedKeyValueIterator.hasNext()); }
@Test public void shouldReturnTrueOnHasNextWhenMoreResults() { assertTrue(serializedKeyValueIterator.hasNext()); }
@Test public void shouldReturnFalseOnHasNextWhenNoMoreResults() { advanceIteratorToEnd(); assertFalse(serializedKeyValueIterator.hasNext()); }