public void testLongFieldMinMax() throws Exception {
Directory dir = newDirectory();
RandomIndexWriter w = new RandomIndexWriter(random(), dir);
int numDocs = atLeast(100);
long minValue = Long.MAX_VALUE;
long maxValue = Long.MIN_VALUE;
for (int i = 0; i < numDocs; i++) {
Document doc = new Document();
long num = random().nextLong();
minValue = Math.min(num, minValue);
maxValue = Math.max(num, maxValue);
doc.add(new LegacyLongField("field", num, Field.Store.NO));
w.addDocument(doc);
}
IndexReader r = w.getReader();
Terms terms = MultiFields.getTerms(r, "field");
assertEquals(new Long(minValue), LegacyNumericUtils.getMinLong(terms));
assertEquals(new Long(maxValue), LegacyNumericUtils.getMaxLong(terms));
r.close();
w.close();
dir.close();
}
public void testDoubleFieldMinMax() throws Exception {
Directory dir = newDirectory();
RandomIndexWriter w = new RandomIndexWriter(random(), dir);
int numDocs = atLeast(100);
double minValue = Double.POSITIVE_INFINITY;
double maxValue = Double.NEGATIVE_INFINITY;
for (int i = 0; i < numDocs; i++) {
Document doc = new Document();
double num = random().nextDouble();
minValue = Math.min(num, minValue);
maxValue = Math.max(num, maxValue);
doc.add(new LegacyDoubleField("field", num, Field.Store.NO));
w.addDocument(doc);
}
IndexReader r = w.getReader();
Terms terms = MultiFields.getTerms(r, "field");
assertEquals(
minValue, NumericUtils.sortableLongToDouble(LegacyNumericUtils.getMinLong(terms)), 0.0);
assertEquals(
maxValue, NumericUtils.sortableLongToDouble(LegacyNumericUtils.getMaxLong(terms)), 0.0);
r.close();
w.close();
dir.close();
}
public void testEmptyLongFieldMinMax() throws Exception {
assertNull(LegacyNumericUtils.getMinLong(EMPTY_TERMS));
assertNull(LegacyNumericUtils.getMaxLong(EMPTY_TERMS));
}