Long value = 1234L;
    PrimitiveSink primitiveSink = mock(PrimitiveSink.class);
    Funnels.longFunnel().funnel(value, primitiveSink);
    verify(primitiveSink).putLong(1234);
  }

  public void testForLongs_null() {
    assertNullsThrowException(Funnels.longFunnel());
  }

  public void testSequential() {
    @SuppressWarnings({"unchecked", "DoNotMock"})
    Funnel<Object> elementFunnel = mock(Funnel.class);