### Question:
RandomAggregateFunction extends DefaultAggregateFunction<Object> { @Override public String getFunctionName() { return "RANDOM"; }  @Override AggregateBuilder<?> createAggregateBuilder(); @Override String getFunctionName();  }### Answer:
@Test public void testGetName() throws Exception { assertEquals("RANDOM", FUNCTION.getFunctionName()); assertEquals("RANDOM", FUNCTION.toString()); }