| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.datasketches.tuple.arrayofdoubles; |
| |
| import org.apache.datasketches.SketchesArgumentException; |
| import org.apache.datasketches.memory.WritableMemory; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @SuppressWarnings("javadoc") |
| public class ArrayOfDoublesAnotBTest { |
| |
| @Test |
| public void nullOrEmptyInput() { |
| // calling getResult() before calling update() should yield an empty set |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| |
| aNotB.update(null, null); |
| result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| |
| ArrayOfDoublesSketch sketch = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| aNotB.update(sketch, null); |
| result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| |
| aNotB.update(null, sketch); |
| result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| |
| aNotB.update(sketch, sketch); |
| result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| } |
| |
| @Test |
| public void nullOrEmptyA() { |
| ArrayOfDoublesUpdatableSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketchB.update(1, new double[] {1.0}); |
| sketchB.update(2, new double[] {1.0}); |
| sketchB.update(3, new double[] {1.0}); |
| sketchB.update(4, new double[] {1.0}); |
| sketchB.update(5, new double[] {1.0}); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| |
| aNotB.update(null, sketchB); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| |
| ArrayOfDoublesSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| aNotB.update(sketchA, sketchB); |
| result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| } |
| |
| @Test |
| public void nullOrEmptyB() { |
| ArrayOfDoublesUpdatableSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketchA.update(1, new double[] {1.0}); |
| sketchA.update(2, new double[] {1.0}); |
| sketchA.update(3, new double[] {1.0}); |
| sketchA.update(4, new double[] {1.0}); |
| sketchA.update(5, new double[] {1.0}); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| |
| aNotB.update(sketchA, null); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 5); |
| Assert.assertEquals(result.getEstimate(), 5.0); |
| Assert.assertEquals(result.getLowerBound(1), 5.0); |
| Assert.assertEquals(result.getUpperBound(1), 5.0); |
| ArrayOfDoublesSketchIterator it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| |
| ArrayOfDoublesSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| aNotB.update(sketchA, sketchB); |
| result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 5); |
| Assert.assertEquals(result.getEstimate(), 5.0); |
| Assert.assertEquals(result.getLowerBound(1), 5.0); |
| Assert.assertEquals(result.getUpperBound(1), 5.0); |
| it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| } |
| |
| @Test |
| public void aSameAsB() { |
| ArrayOfDoublesUpdatableSketch sketch = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketch.update(1, new double[] {1.0}); |
| sketch.update(2, new double[] {1.0}); |
| sketch.update(3, new double[] {1.0}); |
| sketch.update(4, new double[] {1.0}); |
| sketch.update(5, new double[] {1.0}); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(sketch, sketch); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertTrue(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 0); |
| Assert.assertEquals(result.getEstimate(), 0.0); |
| Assert.assertEquals(result.getLowerBound(1), 0.0); |
| Assert.assertEquals(result.getUpperBound(1), 0.0); |
| } |
| |
| @Test |
| public void exactMode() { |
| ArrayOfDoublesUpdatableSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketchA.update(1, new double[] {1}); |
| sketchA.update(2, new double[] {1}); |
| sketchA.update(3, new double[] {1}); |
| sketchA.update(4, new double[] {1}); |
| sketchA.update(5, new double[] {1}); |
| |
| ArrayOfDoublesUpdatableSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| sketchB.update(3, new double[] {1}); |
| sketchB.update(4, new double[] {1}); |
| sketchB.update(5, new double[] {1}); |
| sketchB.update(6, new double[] {1}); |
| sketchB.update(7, new double[] {1}); |
| |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(sketchA, sketchB); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 2); |
| Assert.assertEquals(result.getEstimate(), 2.0); |
| Assert.assertEquals(result.getLowerBound(1), 2.0); |
| Assert.assertEquals(result.getUpperBound(1), 2.0); |
| ArrayOfDoublesSketchIterator it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| } |
| |
| @Test |
| public void exactModeCustomSeed() { |
| long seed = 1234567890; |
| ArrayOfDoublesUpdatableSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(seed).build(); |
| sketchA.update(1, new double[] {1}); |
| sketchA.update(2, new double[] {1}); |
| sketchA.update(3, new double[] {1}); |
| sketchA.update(4, new double[] {1}); |
| sketchA.update(5, new double[] {1}); |
| |
| ArrayOfDoublesUpdatableSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(seed).build(); |
| sketchB.update(3, new double[] {1}); |
| sketchB.update(4, new double[] {1}); |
| sketchB.update(5, new double[] {1}); |
| sketchB.update(6, new double[] {1}); |
| sketchB.update(7, new double[] {1}); |
| |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().setSeed(seed).buildAnotB(); |
| aNotB.update(sketchA, sketchB); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getRetainedEntries(), 2); |
| Assert.assertEquals(result.getEstimate(), 2.0); |
| Assert.assertEquals(result.getLowerBound(1), 2.0); |
| Assert.assertEquals(result.getUpperBound(1), 2.0); |
| ArrayOfDoublesSketchIterator it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| } |
| |
| @Test |
| public void estimationMode() { |
| int key = 0; |
| ArrayOfDoublesUpdatableSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| for (int i = 0; i < 8192; i++) { |
| sketchA.update(key++, new double[] {1}); |
| } |
| |
| key -= 4096; // overlap half of the entries |
| ArrayOfDoublesUpdatableSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| for (int i = 0; i < 8192; i++) { |
| sketchB.update(key++, new double[] {1}); |
| } |
| |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(sketchA, sketchB); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getEstimate(), 4096.0, 4096 * 0.03); // crude estimate of RSE(95%) = 2 / sqrt(result.getRetainedEntries()) |
| Assert.assertTrue(result.getLowerBound(1) <= result.getEstimate()); |
| Assert.assertTrue(result.getUpperBound(1) > result.getEstimate()); |
| ArrayOfDoublesSketchIterator it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| |
| // same operation, but compact sketches and off-heap result |
| aNotB.update(sketchA.compact(), sketchB.compact()); |
| result = aNotB.getResult(WritableMemory.writableWrap(new byte[1000000])); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getEstimate(), 4096.0, 4096 * 0.03); // crude estimate of RSE(95%) = 2 / sqrt(result.getRetainedEntries()) |
| Assert.assertTrue(result.getLowerBound(1) <= result.getEstimate()); |
| Assert.assertTrue(result.getUpperBound(1) > result.getEstimate()); |
| it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| } |
| |
| @Test |
| public void estimationModeLargeB() { |
| int key = 0; |
| ArrayOfDoublesUpdatableSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| for (int i = 0; i < 10000; i++) { |
| sketchA.update(key++, new double[] {1}); |
| } |
| |
| key -= 2000; // overlap |
| ArrayOfDoublesUpdatableSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().build(); |
| for (int i = 0; i < 100000; i++) { |
| sketchB.update(key++, new double[] {1}); |
| } |
| |
| final int expected = 10000 - 2000; |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(sketchA, sketchB); |
| ArrayOfDoublesCompactSketch result = aNotB.getResult(); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getEstimate(), expected, expected * 0.1); // crude estimate of RSE(95%) = 2 / sqrt(result.getRetainedEntries()) |
| Assert.assertTrue(result.getLowerBound(1) <= result.getEstimate()); |
| Assert.assertTrue(result.getUpperBound(1) > result.getEstimate()); |
| ArrayOfDoublesSketchIterator it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| |
| // same operation, but compact sketches and off-heap result |
| aNotB.update(sketchA.compact(), sketchB.compact()); |
| result = aNotB.getResult(WritableMemory.writableWrap(new byte[1000000])); |
| Assert.assertFalse(result.isEmpty()); |
| Assert.assertEquals(result.getEstimate(), expected, expected * 0.1); // crude estimate of RSE(95%) = 2 / sqrt(result.getRetainedEntries()) |
| Assert.assertTrue(result.getLowerBound(1) <= result.getEstimate()); |
| Assert.assertTrue(result.getUpperBound(1) > result.getEstimate()); |
| it = result.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getValues(), new double[] {1}); |
| } |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void incompatibleSeedA() { |
| ArrayOfDoublesSketch sketch = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(1).build(); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(sketch, null); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void incompatibleSeedB() { |
| ArrayOfDoublesSketch sketch = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(1).build(); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().buildAnotB(); |
| aNotB.update(null, sketch); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void incompatibleSeeds() { |
| ArrayOfDoublesSketch sketchA = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(1).build(); |
| ArrayOfDoublesSketch sketchB = new ArrayOfDoublesUpdatableSketchBuilder().setSeed(2).build(); |
| ArrayOfDoublesAnotB aNotB = new ArrayOfDoublesSetOperationBuilder().setSeed(3).buildAnotB(); |
| aNotB.update(sketchA, sketchB); |
| } |
| |
| } |