@Override
    public BarSeries aggregate(BarSeries series, String aggregatedSeriesName) {
        final List<Bar> aggregatedBars = barAggregator.aggregate(series.getBarData());
        return new BaseBarSeries(aggregatedSeriesName, aggregatedBars);
    }
@Test
    public void testAggregateWithTheSameName() {
        final List<Bar> bars = new LinkedList<>();
        final ZonedDateTime time = ZonedDateTime.of(2019, 6, 12, 4, 1, 0, 0, ZoneId.systemDefault());

        final Bar bar0 = new MockBar(time, 1d, 2d, 3d, 4d, 5d, 6d, 7, numFunction);
        final Bar bar1 = new MockBar(time.plusDays(1), 2d, 3d, 3d, 4d, 5d, 6d, 7, numFunction);
        final Bar bar2 = new MockBar(time.plusDays(2), 3d, 4d, 4d, 5d, 6d, 7d, 7, numFunction);
        bars.add(bar0);
        bars.add(bar1);
        bars.add(bar2);

        final BarSeries barSeries = new BaseBarSeries("name", bars);

        final BarSeries aggregated = baseBarSeriesAggregator.aggregate(barSeries);

        assertEquals("name", aggregated.getName());
        assertEquals(2, aggregated.getBarCount());
        assertSame(bar0, aggregated.getBar(0));
        assertSame(bar2, aggregated.getBar(1));
    }