| /* |
| * 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.theta; |
| |
| import static org.apache.datasketches.theta.BackwardConversions.convertSerVer3toSerVer1; |
| import static org.apache.datasketches.theta.BackwardConversions.convertSerVer3toSerVer2; |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertTrue; |
| |
| import org.apache.datasketches.SketchesArgumentException; |
| import org.apache.datasketches.Util; |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.datasketches.memory.WritableMemory; |
| import org.testng.annotations.Test; |
| |
| /** |
| * @author Lee Rhodes |
| */ |
| @SuppressWarnings("javadoc") |
| public class ForwardCompatibilityTest { |
| |
| @Test |
| public void checkSerVer1_Empty() { |
| CompactSketch csk = EmptyCompactSketch.getInstance(); |
| Memory srcMem = convertSerVer3toSerVer1(csk); |
| Sketch sketch = Sketch.heapify(srcMem); |
| assertEquals(sketch.isEmpty(), true); |
| assertEquals(sketch.isEstimationMode(), false); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertTrue(sketch instanceof EmptyCompactSketch); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void checkSerVer1_badPrelongs() { |
| CompactSketch csk = EmptyCompactSketch.getInstance(); |
| Memory srcMem = convertSerVer3toSerVer1(csk); |
| WritableMemory srcMemW = (WritableMemory) srcMem; |
| srcMemW.putByte(0, (byte) 1); |
| Sketch.heapify(srcMemW); //throws because bad preLongs |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void checkSerVer1_tooSmall() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().build(); |
| usk.update(1); |
| usk.update(2); |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer1(csk); |
| Memory srcMem2 = srcMem.region(0, srcMem.getCapacity() - 8); |
| Sketch.heapify(srcMem2); //throws because too small |
| } |
| |
| |
| @Test |
| public void checkSerVer1_1Value() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().build(); |
| usk.update(1); |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer1(csk); |
| Sketch sketch = Sketch.heapify(srcMem); |
| assertEquals(sketch.isEmpty(), false); |
| assertEquals(sketch.isEstimationMode(), false); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertEquals(sketch.getEstimate(), 1.0); |
| assertTrue(sketch instanceof SingleItemSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_1PreLong_Empty() { |
| CompactSketch csk = EmptyCompactSketch.getInstance(); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| Sketch sketch = Sketch.heapify(srcMem); |
| assertEquals(sketch.isEmpty(), true); |
| assertEquals(sketch.isEstimationMode(), false); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertTrue(sketch instanceof EmptyCompactSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_2PreLongs_Empty() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().setLogNominalEntries(4).build(); |
| for (int i = 0; i < 2; i++) { usk.update(i); } //exact mode |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| |
| WritableMemory srcMemW = WritableMemory.allocate(16); |
| srcMem.copyTo(0, srcMemW, 0, 16); |
| PreambleUtil.setEmpty(srcMemW); //Force |
| assertTrue(PreambleUtil.isEmptyFlag(srcMemW)); |
| srcMemW.putInt(8, 0); //corrupt curCount = 0 |
| |
| Sketch sketch = Sketch.heapify(srcMemW); |
| assertTrue(sketch instanceof EmptyCompactSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_3PreLongs_Empty() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().setLogNominalEntries(4).build(); |
| for (int i = 0; i < 32; i++) { usk.update(i); } //est mode |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| |
| WritableMemory srcMemW = WritableMemory.allocate(24); |
| srcMem.copyTo(0, srcMemW, 0, 24); |
| PreambleUtil.setEmpty(srcMemW); //Force |
| assertTrue(PreambleUtil.isEmptyFlag(srcMemW)); |
| srcMemW.putInt(8, 0); //corrupt curCount = 0 |
| srcMemW.putLong(16, Long.MAX_VALUE); //corrupt to make it look empty |
| |
| Sketch sketch = Sketch.heapify(srcMemW); //now serVer=3, EmptyCompactSketch |
| assertTrue(sketch instanceof EmptyCompactSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_2PreLongs_1Value() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().setLogNominalEntries(4).build(); |
| usk.update(1); //exact mode |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| |
| Sketch sketch = Sketch.heapify(srcMem); |
| assertEquals(sketch.isEmpty(), false); |
| assertEquals(sketch.isEstimationMode(), false); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertTrue(sketch instanceof SingleItemSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_3PreLongs_1Value() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().setLogNominalEntries(4).build(); |
| for (int i = 0; i < 32; i++) { usk.update(i); } //est mode |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| |
| WritableMemory srcMemW = WritableMemory.allocate(32); |
| srcMem.copyTo(0, srcMemW, 0, 32); |
| srcMemW.putInt(8, 1); //corrupt curCount = 1 |
| srcMemW.putLong(16, Long.MAX_VALUE); //corrupt theta to make it look exact |
| long[] cache = csk.getCache(); |
| srcMemW.putLong(24, cache[0]); //corrupt cache with only one value |
| |
| Sketch sketch = Sketch.heapify(srcMemW); |
| assertEquals(sketch.isEmpty(), false); |
| assertEquals(sketch.isEstimationMode(), false); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertTrue(sketch instanceof SingleItemSketch); |
| } |
| |
| @Test |
| public void checkSerVer2_3PreLongs_1Value_ThLessthan1() { |
| UpdateSketch usk = Sketches.updateSketchBuilder().setLogNominalEntries(4).build(); |
| for (int i = 0; i < 32; i++) { usk.update(i); } //est mode |
| CompactSketch csk = usk.compact(true, null); |
| Memory srcMem = convertSerVer3toSerVer2(csk, Util.DEFAULT_UPDATE_SEED); |
| |
| WritableMemory srcMemW = WritableMemory.allocate(32); |
| srcMem.copyTo(0, srcMemW, 0, 32); |
| srcMemW.putInt(8, 1); //corrupt curCount = 1 |
| //srcMemW.putLong(16, Long.MAX_VALUE); |
| long[] cache = csk.getCache(); |
| srcMemW.putLong(24, cache[0]); //corrupt cache with only one value |
| |
| Sketch sketch = Sketch.heapify(srcMemW); |
| assertEquals(sketch.isEmpty(), false); |
| assertEquals(sketch.isEstimationMode(), true); |
| assertEquals(sketch.isDirect(), false); |
| assertEquals(sketch.hasMemory(), false); |
| assertEquals(sketch.isCompact(), true); |
| assertEquals(sketch.isOrdered(), true); |
| assertTrue(sketch instanceof HeapCompactSketch); |
| } |
| |
| @Test |
| public void printlnTest() { |
| println("PRINTING: "+this.getClass().getName()); |
| } |
| |
| /** |
| * @param s value to print |
| */ |
| static void println(String s) { |
| //System.out.println(s); //disable here |
| } |
| |
| } |