public void test_earliestLatest_whenEmpty() {
LocalDateDoubleTimeSeries test = LocalDateDoubleTimeSeries.empty();
TestHelper.assertThrows(() -> test.getEarliestDate(), NoSuchElementException.class);
TestHelper.assertThrows(() -> test.getEarliestValue(), NoSuchElementException.class);
TestHelper.assertThrows(() -> test.getLatestDate(), NoSuchElementException.class);
TestHelper.assertThrows(() -> test.getLatestValue(), NoSuchElementException.class);
}
/**
* Build the time-series from the builder.
*
* @return a time-series containing the entries from the builder
*/
public LocalDateDoubleTimeSeries build() {
if (entries.isEmpty()) {
return LocalDateDoubleTimeSeries.empty();
}
// Depending on how dense the data is, judge which type of time series
// is the best fit
return density() > DENSITY_THRESHOLD ? createDenseSeries() : createSparseSeries();
}
// -------------------------------------------------------------------------
public void test_combineWith_intersectionWithNoMatchingElements() {
LocalDateDoubleTimeSeries series1 =
LocalDateDoubleTimeSeries.builder().putAll(DATES_2010_14, VALUES_10_14).build();
List<LocalDate> dates2 =
dates(DATE_2010_06_01, DATE_2011_06_01, DATE_2012_06_01, DATE_2013_06_01, DATE_2014_06_01);
LocalDateDoubleTimeSeries series2 =
LocalDateDoubleTimeSeries.builder().putAll(dates2, VALUES_10_14).build();
LocalDateDoubleTimeSeries test = series1.intersection(series2, Double::sum);
assertEquals(test, LocalDateDoubleTimeSeries.empty());
}
// -------------------------------------------------------------------------
public void test_emptySeries() {
LocalDateDoubleTimeSeries test = LocalDateDoubleTimeSeries.empty();
assertEquals(test.isEmpty(), true);
assertEquals(test.size(), 0);
assertEquals(test.containsDate(DATE_2010_01_01), false);
assertEquals(test.containsDate(DATE_2011_01_01), false);
assertEquals(test.containsDate(DATE_2012_01_01), false);
assertEquals(test.get(DATE_2010_01_01), OptionalDouble.empty());
assertEquals(test.get(DATE_2011_01_01), OptionalDouble.empty());
assertEquals(test.get(DATE_2012_01_01), OptionalDouble.empty());
assertEquals(test, LocalDateDoubleTimeSeries.builder().putAll(dates(), values()).build());
assertEquals(test.dates().count(), 0);
assertEquals(test.values().count(), 0);
}
@Test(dataProvider = "tailSeries")
public void test_tailSeries_emptySeries(int count, int[] expected) {
LocalDateDoubleTimeSeries test = LocalDateDoubleTimeSeries.empty().tailSeries(count);
assertEquals(test.size(), 0);
}
@Test(dataProvider = "subSeries")
public void test_subSeries_emptySeries(LocalDate start, LocalDate end, int[] expected) {
LocalDateDoubleTimeSeries test = LocalDateDoubleTimeSeries.empty().subSeries(start, end);
assertEquals(test.size(), 0);
}
