@Test(dataProvider = "tailSeries")
public void test_tailSeries(int count, int[] expected) {
LocalDateDoubleTimeSeries base =
LocalDateDoubleTimeSeries.builder().putAll(DATES_2010_14, VALUES_10_14).build();
LocalDateDoubleTimeSeries test = base.tailSeries(count);
assertEquals(test.size(), expected.length);
for (int i = 0; i < DATES_2010_14.size(); i++) {
if (Arrays.binarySearch(expected, i) >= 0) {
assertEquals(test.get(DATES_2010_14.get(i)), OptionalDouble.of(VALUES_10_14.get(i)));
} else {
assertEquals(test.get(DATES_2010_14.get(i)), OptionalDouble.empty());
}
}
}
public void test_tailSeries_negative() {
LocalDateDoubleTimeSeries base =
LocalDateDoubleTimeSeries.builder().putAll(DATES_2010_14, VALUES_10_14).build();
assertThrowsIllegalArg(() -> base.tailSeries(-1));
}
