ContainsExpressionNonHandler implements ContainsExpressionHandler<Q> { @Override public Q contains(String fieldName, Object[] values) { throw new UnsupportedOperationException("contains is not implemented"); }  @Override Q contains(String fieldName, Object[] values);  }
@Test(expected = UnsupportedOperationException.class) public void contains() { handler.contains("name", new Object[] { "a", "b" }); }