stefanvodita commented on code in PR #14238:
URL: https://github.com/apache/lucene/pull/14238#discussion_r1955848183
##########
lucene/facet/src/test/org/apache/lucene/facet/range/TestDynamicRangeUtil.java:
##########
@@ -76,13 +77,248 @@ public void
testComputeDynamicNumericRangesWithOneLargeWeight() {
long[] values = new long[] {45, 32, 52, 14, 455, 342, 53};
long[] weights = new long[] {143, 23, 1, 52343, 53, 12, 2534};
- // value 14 has its own bin since the weight is large, and the rest of
values fall the other bin
- expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343,
14L, 14L, 14D));
+ // value 14 has its own bin since the weight is large, and the rest of the
values fall in the
+ // other bin
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343L,
14L, 14L, 14D));
expectedRangeInfoList.add(
- new DynamicRangeUtil.DynamicRangeInfo(6, 2766, 32L, 455L,
163.16666666666666D));
+ new DynamicRangeUtil.DynamicRangeInfo(6, 2766L, 32L, 455L,
163.16666666666666D));
assertDynamicNumericRangeResults(values, weights, 4, 55109,
expectedRangeInfoList);
}
+ public void testComputeDynamicNumericRangesWithLargeTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // More requested ranges (TopN) than values should return ranges with
weights larger than the
+ // average weight - excluding the last range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 560L,
277L, 277L, 277D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 508L,
439L, 439L, 439D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 42, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSingleTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // A single requested range (TopN) should return a single range regardless
of the weights
+ // provided
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(4, 1863L,
277L, 794L, 499.25D));
+ assertDynamicNumericRangeResults(values, weights, 1, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithTwoTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // Two requested ranges (TopN) should return two ranges where the first
range's weight is equal
+ // or larger than half of the total weight
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 1068L,
277L, 439L, 358.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 2, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameWeights() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[100];
+ long[] weights = new long[100];
+ for (int i = 0; i < 100; i++) {
+ values[i] = i;
+ weights[i] = 50;
+ }
+
+ // Supplying only equal weights should return ranges with equal counts -
excluding the last
+ // range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
0L, 24L, 12.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
25L, 49L, 37.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
50L, 74L, 62.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
75L, 99L, 87.0D));
+ assertDynamicNumericRangeResults(values, weights, 4, 5000L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameWeightsShuffled() {
Review Comment:
This test and the next one are ensuring that we define a strict order among
entries, considering both values and weights. Could we say that explicitly in a
comment?
##########
lucene/facet/src/test/org/apache/lucene/facet/range/TestDynamicRangeUtil.java:
##########
@@ -76,13 +77,248 @@ public void
testComputeDynamicNumericRangesWithOneLargeWeight() {
long[] values = new long[] {45, 32, 52, 14, 455, 342, 53};
long[] weights = new long[] {143, 23, 1, 52343, 53, 12, 2534};
- // value 14 has its own bin since the weight is large, and the rest of
values fall the other bin
- expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343,
14L, 14L, 14D));
+ // value 14 has its own bin since the weight is large, and the rest of the
values fall in the
+ // other bin
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343L,
14L, 14L, 14D));
expectedRangeInfoList.add(
- new DynamicRangeUtil.DynamicRangeInfo(6, 2766, 32L, 455L,
163.16666666666666D));
+ new DynamicRangeUtil.DynamicRangeInfo(6, 2766L, 32L, 455L,
163.16666666666666D));
assertDynamicNumericRangeResults(values, weights, 4, 55109,
expectedRangeInfoList);
}
+ public void testComputeDynamicNumericRangesWithLargeTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // More requested ranges (TopN) than values should return ranges with
weights larger than the
+ // average weight - excluding the last range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 560L,
277L, 277L, 277D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 508L,
439L, 439L, 439D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 42, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSingleTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // A single requested range (TopN) should return a single range regardless
of the weights
+ // provided
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(4, 1863L,
277L, 794L, 499.25D));
+ assertDynamicNumericRangeResults(values, weights, 1, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithTwoTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // Two requested ranges (TopN) should return two ranges where the first
range's weight is equal
+ // or larger than half of the total weight
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 1068L,
277L, 439L, 358.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 2, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameWeights() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[100];
+ long[] weights = new long[100];
+ for (int i = 0; i < 100; i++) {
+ values[i] = i;
+ weights[i] = 50;
+ }
+
+ // Supplying only equal weights should return ranges with equal counts -
excluding the last
+ // range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
0L, 24L, 12.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
25L, 49L, 37.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
50L, 74L, 62.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
75L, 99L, 87.0D));
+ assertDynamicNumericRangeResults(values, weights, 4, 5000L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameWeightsShuffled() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[100];
+ long[] weights = new long[100];
+ for (int i = 0; i < 100; i++) {
+ values[i] = i;
+ weights[i] = 50;
+ }
+
+ // Shuffling the values and weights should not change the answer when the
weights are the same
+ shuffleValuesWeights(values, weights);
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
0L, 24L, 12.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
25L, 49L, 37.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
50L, 74L, 62.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(25, 1250L,
75L, 99L, 87.0D));
+ assertDynamicNumericRangeResults(values, weights, 4, 5000L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameValuesShuffled() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long totalWeight = 0;
+ long[] values = new long[100];
+ long[] weights = new long[100];
+ for (int i = 0; i < 100; i++) {
+ values[i] = 50;
+ weights[i] = i;
+ totalWeight += i;
+ }
+
+ // Shuffling the values and weights should not change the answer when the
values are the same
+ shuffleValuesWeights(values, weights);
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(51, 1275L,
50L, 50L, 50D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(21, 1281L,
50L, 50L, 50D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(16, 1272L,
50L, 50L, 50D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(12, 1122L,
50L, 50L, 50D));
+
+ assertDynamicNumericRangeResults(values, weights, 4, totalWeight,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithMisplacedValue() {
Review Comment:
What does this test reveal that is different from the tests with shuffling?
##########
lucene/facet/src/test/org/apache/lucene/facet/range/TestDynamicRangeUtil.java:
##########
@@ -76,13 +77,248 @@ public void
testComputeDynamicNumericRangesWithOneLargeWeight() {
long[] values = new long[] {45, 32, 52, 14, 455, 342, 53};
long[] weights = new long[] {143, 23, 1, 52343, 53, 12, 2534};
- // value 14 has its own bin since the weight is large, and the rest of
values fall the other bin
- expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343,
14L, 14L, 14D));
+ // value 14 has its own bin since the weight is large, and the rest of the
values fall in the
+ // other bin
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343L,
14L, 14L, 14D));
expectedRangeInfoList.add(
- new DynamicRangeUtil.DynamicRangeInfo(6, 2766, 32L, 455L,
163.16666666666666D));
+ new DynamicRangeUtil.DynamicRangeInfo(6, 2766L, 32L, 455L,
163.16666666666666D));
assertDynamicNumericRangeResults(values, weights, 4, 55109,
expectedRangeInfoList);
}
+ public void testComputeDynamicNumericRangesWithLargeTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // More requested ranges (TopN) than values should return ranges with
weights larger than the
+ // average weight - excluding the last range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 560L,
277L, 277L, 277D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 508L,
439L, 439L, 439D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 42, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSingleTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // A single requested range (TopN) should return a single range regardless
of the weights
+ // provided
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(4, 1863L,
277L, 794L, 499.25D));
+ assertDynamicNumericRangeResults(values, weights, 1, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithTwoTopN() {
Review Comment:
Does this test catch anything the other tests wouldn't?
##########
lucene/facet/src/test/org/apache/lucene/facet/range/TestDynamicRangeUtil.java:
##########
@@ -76,13 +77,248 @@ public void
testComputeDynamicNumericRangesWithOneLargeWeight() {
long[] values = new long[] {45, 32, 52, 14, 455, 342, 53};
long[] weights = new long[] {143, 23, 1, 52343, 53, 12, 2534};
- // value 14 has its own bin since the weight is large, and the rest of
values fall the other bin
- expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343,
14L, 14L, 14D));
+ // value 14 has its own bin since the weight is large, and the rest of the
values fall in the
+ // other bin
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 52343L,
14L, 14L, 14D));
expectedRangeInfoList.add(
- new DynamicRangeUtil.DynamicRangeInfo(6, 2766, 32L, 455L,
163.16666666666666D));
+ new DynamicRangeUtil.DynamicRangeInfo(6, 2766L, 32L, 455L,
163.16666666666666D));
assertDynamicNumericRangeResults(values, weights, 4, 55109,
expectedRangeInfoList);
}
+ public void testComputeDynamicNumericRangesWithLargeTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // More requested ranges (TopN) than values should return ranges with
weights larger than the
+ // average weight - excluding the last range
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 560L,
277L, 277L, 277D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(1, 508L,
439L, 439L, 439D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 42, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSingleTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // A single requested range (TopN) should return a single range regardless
of the weights
+ // provided
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(4, 1863L,
277L, 794L, 499.25D));
+ assertDynamicNumericRangeResults(values, weights, 1, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithTwoTopN() {
+ List<DynamicRangeUtil.DynamicRangeInfo> expectedRangeInfoList = new
ArrayList<>();
+ long[] values = new long[] {487, 439, 794, 277};
+ long[] weights = new long[] {59, 508, 736, 560};
+
+ // Two requested ranges (TopN) should return two ranges where the first
range's weight is equal
+ // or larger than half of the total weight
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 1068L,
277L, 439L, 358.0D));
+ expectedRangeInfoList.add(new DynamicRangeUtil.DynamicRangeInfo(2, 795L,
487L, 794L, 640.5D));
+ assertDynamicNumericRangeResults(values, weights, 2, 1863L,
expectedRangeInfoList);
+ }
+
+ public void testComputeDynamicNumericRangesWithSameWeights() {
Review Comment:
This is a good test to have! Should we move it next to
`testComputeDynamicNumericRangesWithSameValues`?
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