| /* |
| * 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; |
| |
| import static org.apache.datasketches.Util.getResourceBytes; |
| |
| import org.apache.datasketches.SketchesArgumentException; |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.datasketches.tuple.adouble.DoubleSummary; |
| import org.apache.datasketches.tuple.adouble.DoubleSummary.Mode; |
| import org.apache.datasketches.tuple.adouble.DoubleSummaryDeserializer; |
| import org.apache.datasketches.tuple.adouble.DoubleSummaryFactory; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @SuppressWarnings("javadoc") |
| public class CompactSketchWithDoubleSummaryTest { |
| private final DoubleSummary.Mode mode = Mode.Sum; |
| |
| @Test |
| public void emptyFromNonPublicConstructorNullArray() { |
| CompactSketch<DoubleSummary> sketch = |
| new CompactSketch<>(null, null, Long.MAX_VALUE, true); |
| Assert.assertTrue(sketch.isEmpty()); |
| Assert.assertFalse(sketch.isEstimationMode()); |
| Assert.assertEquals(sketch.getEstimate(), 0.0); |
| Assert.assertEquals(sketch.getLowerBound(1), 0.0); |
| Assert.assertEquals(sketch.getUpperBound(1), 0.0); |
| Assert.assertEquals(sketch.getRetainedEntries(), 0); |
| Assert.assertEquals(sketch.getThetaLong(), Long.MAX_VALUE); |
| Assert.assertEquals(sketch.getTheta(), 1.0); |
| SketchIterator<DoubleSummary> it = sketch.iterator(); |
| Assert.assertNotNull(it); |
| Assert.assertFalse(it.next()); |
| sketch.toString(); |
| } |
| |
| @Test |
| public void emptyFromNonPublicConstructor() { |
| long[] keys = new long[0]; |
| DoubleSummary[] summaries = |
| (DoubleSummary[]) java.lang.reflect.Array.newInstance(DoubleSummary.class, 0); |
| CompactSketch<DoubleSummary> sketch = |
| new CompactSketch<>(keys, summaries, Long.MAX_VALUE, true); |
| Assert.assertTrue(sketch.isEmpty()); |
| Assert.assertFalse(sketch.isEstimationMode()); |
| Assert.assertEquals(sketch.getEstimate(), 0.0); |
| Assert.assertEquals(sketch.getLowerBound(1), 0.0); |
| Assert.assertEquals(sketch.getUpperBound(1), 0.0); |
| Assert.assertEquals(sketch.getRetainedEntries(), 0); |
| Assert.assertEquals(sketch.getThetaLong(), Long.MAX_VALUE); |
| Assert.assertEquals(sketch.getTheta(), 1.0); |
| SketchIterator<DoubleSummary> it = sketch.iterator(); |
| Assert.assertNotNull(it); |
| Assert.assertFalse(it.next()); |
| } |
| |
| @Test |
| public void emptyFromQuickSelectSketch() { |
| UpdatableSketch<Double, DoubleSummary> us = |
| new UpdatableSketchBuilder<>(new DoubleSummaryFactory(mode)).build(); |
| CompactSketch<DoubleSummary> sketch = us.compact(); |
| Assert.assertTrue(sketch.isEmpty()); |
| Assert.assertFalse(sketch.isEstimationMode()); |
| Assert.assertEquals(sketch.getEstimate(), 0.0); |
| Assert.assertEquals(sketch.getLowerBound(1), 0.0); |
| Assert.assertEquals(sketch.getUpperBound(1), 0.0); |
| Assert.assertEquals(sketch.getRetainedEntries(), 0); |
| Assert.assertEquals(sketch.getThetaLong(), Long.MAX_VALUE); |
| Assert.assertEquals(sketch.getTheta(), 1.0); |
| SketchIterator<DoubleSummary> it = sketch.iterator(); |
| Assert.assertNotNull(it); |
| Assert.assertFalse(it.next()); |
| } |
| |
| @Test |
| public void exactModeFromQuickSelectSketch() { |
| UpdatableSketch<Double, DoubleSummary> us = |
| new UpdatableSketchBuilder<>(new DoubleSummaryFactory(mode)).build(); |
| us.update(1, 1.0); |
| us.update(2, 1.0); |
| us.update(3, 1.0); |
| us.update(1, 1.0); |
| us.update(2, 1.0); |
| us.update(3, 1.0); |
| CompactSketch<DoubleSummary> sketch = us.compact(); |
| Assert.assertFalse(sketch.isEmpty()); |
| Assert.assertFalse(sketch.isEstimationMode()); |
| Assert.assertEquals(sketch.getEstimate(), 3.0); |
| Assert.assertEquals(sketch.getLowerBound(1), 3.0); |
| Assert.assertEquals(sketch.getUpperBound(1), 3.0); |
| Assert.assertEquals(sketch.getRetainedEntries(), 3); |
| Assert.assertEquals(sketch.getThetaLong(), Long.MAX_VALUE); |
| Assert.assertEquals(sketch.getTheta(), 1.0); |
| SketchIterator<DoubleSummary> it = sketch.iterator(); |
| int count = 0; |
| while (it.next()) { |
| Assert.assertEquals(it.getSummary().getValue(), 2.0); |
| count++; |
| } |
| Assert.assertEquals(count, 3); |
| } |
| |
| @Test |
| public void serializeDeserializeSmallExact() { |
| UpdatableSketch<Double, DoubleSummary> us = |
| new UpdatableSketchBuilder<>(new DoubleSummaryFactory(mode)).build(); |
| us.update("a", 1.0); |
| us.update("b", 1.0); |
| us.update("c", 1.0); |
| CompactSketch<DoubleSummary> sketch1 = us.compact(); |
| Sketch<DoubleSummary> sketch2 = |
| Sketches.heapifySketch(Memory.wrap(sketch1.toByteArray()), |
| new DoubleSummaryDeserializer()); |
| Assert.assertFalse(sketch2.isEmpty()); |
| Assert.assertFalse(sketch2.isEstimationMode()); |
| Assert.assertEquals(sketch2.getEstimate(), 3.0); |
| Assert.assertEquals(sketch2.getLowerBound(1), 3.0); |
| Assert.assertEquals(sketch2.getUpperBound(1), 3.0); |
| Assert.assertEquals(sketch2.getRetainedEntries(), 3); |
| Assert.assertEquals(sketch2.getThetaLong(), Long.MAX_VALUE); |
| Assert.assertEquals(sketch2.getTheta(), 1.0); |
| SketchIterator<DoubleSummary> it = sketch2.iterator(); |
| int count = 0; |
| while (it.next()) { |
| Assert.assertEquals(it.getSummary().getValue(), 1.0); |
| count++; |
| } |
| Assert.assertEquals(count, 3); |
| } |
| |
| @Test |
| public void serializeDeserializeEstimation() throws Exception { |
| UpdatableSketch<Double, DoubleSummary> us = |
| new UpdatableSketchBuilder<>(new DoubleSummaryFactory(mode)).build(); |
| for (int i = 0; i < 8192; i++) { |
| us.update(i, 1.0); |
| } |
| us.trim(); |
| CompactSketch<DoubleSummary> sketch1 = us.compact(); |
| byte[] bytes = sketch1.toByteArray(); |
| |
| // for binary testing |
| //TestUtil.writeBytesToFile(bytes, "CompactSketchWithDoubleSummary4K.sk"); |
| |
| Sketch<DoubleSummary> sketch2 = |
| Sketches.heapifySketch(Memory.wrap(bytes), new DoubleSummaryDeserializer()); |
| Assert.assertFalse(sketch2.isEmpty()); |
| Assert.assertTrue(sketch2.isEstimationMode()); |
| Assert.assertEquals(sketch2.getEstimate(), sketch1.getEstimate()); |
| Assert.assertEquals(sketch2.getThetaLong(), sketch1.getThetaLong()); |
| SketchIterator<DoubleSummary> it = sketch2.iterator(); |
| int count = 0; |
| while (it.next()) { |
| Assert.assertEquals(it.getSummary().getValue(), 1.0); |
| count++; |
| } |
| Assert.assertEquals(count, 4096); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void deserializeWrongType() { |
| UpdatableSketch<Double, DoubleSummary> us = |
| new UpdatableSketchBuilder<>(new DoubleSummaryFactory(mode)).build(); |
| for (int i = 0; i < 8192; i++) { |
| us.update(i, 1.0); |
| } |
| CompactSketch<DoubleSummary> sketch1 = us.compact(); |
| Sketches.heapifyUpdatableSketch(Memory.wrap(sketch1.toByteArray()), |
| new DoubleSummaryDeserializer(), |
| new DoubleSummaryFactory(mode)); |
| } |
| |
| @Test |
| public void serialVersion1Compatibility() throws Exception { |
| byte[] bytes = getResourceBytes("CompactSketchWithDoubleSummary4K_serialVersion1.sk"); |
| Sketch<DoubleSummary> sketch = Sketches.heapifySketch(Memory.wrap(bytes), |
| new DoubleSummaryDeserializer()); |
| Assert.assertTrue(sketch.isEstimationMode()); |
| Assert.assertEquals(sketch.getEstimate(), 8192, 8192 * 0.99); |
| Assert.assertEquals(sketch.getRetainedEntries(), 4096); |
| int count = 0; |
| SketchIterator<DoubleSummary> it = sketch.iterator(); |
| while (it.next()) { |
| Assert.assertEquals(it.getSummary().getValue(), 1.0); |
| count++; |
| } |
| Assert.assertEquals(count, 4096); |
| } |
| |
| } |