| /* |
| * 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.hllmap; |
| |
| import static org.apache.datasketches.hash.MurmurHash3.hash; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import org.apache.datasketches.SketchesArgumentException; |
| import org.apache.datasketches.Util; |
| |
| @SuppressWarnings("javadoc") |
| public class UniqueCountMapTest { |
| private final static int INIT_ENTRIES = 211; |
| @Test |
| public void nullKey() { |
| UniqueCountMap map = new UniqueCountMap(4); |
| double estimate = map.update(null, null); |
| Assert.assertTrue(Double.isNaN(estimate)); |
| Assert.assertTrue(Double.isNaN(map.getEstimate(null))); |
| Assert.assertTrue(Double.isNaN(map.getUpperBound(null))); |
| Assert.assertTrue(Double.isNaN(map.getLowerBound(null))); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void wrongSizeKeyUpdate() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| byte[] key = new byte[] {0}; |
| map.update(key, null); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void wrongSizeKey() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 2); |
| println(map.toString()); |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void wrongSizeKeyGetEstimate() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| byte[] key = new byte[] {0}; |
| map.getEstimate(key); |
| } |
| |
| @Test |
| public void emptyMapNullValue() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| double estimate = map.update("1234".getBytes(UTF_8), null); |
| Assert.assertEquals(estimate, 0.0); |
| } |
| |
| @Test |
| public void oneEntry() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| double estimate = map.update("1234".getBytes(UTF_8), "a".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 1.0, 0.01); |
| } |
| |
| @Test |
| public void duplicateEntry() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| byte[] key = "1234".getBytes(UTF_8); |
| double estimate = map.update(key, "a".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 1.0); |
| estimate = map.update(key, "a".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 1.0); |
| estimate = map.update(key, null); |
| Assert.assertEquals(estimate, 1.0); |
| } |
| |
| @Test |
| public void oneKeyTwoValues() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| double estimate = map.update("1234".getBytes(UTF_8), "a".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 1.0); |
| estimate = map.update("1234".getBytes(UTF_8), "b".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 2.0, 0.02); |
| } |
| |
| @Test |
| public void oneKeyThreeValues() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| byte[] key = "1234".getBytes(UTF_8); |
| double estimate = map.update(key, "a".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 1.0); |
| estimate = map.update(key, "b".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 2.0); |
| estimate = map.update(key, "c".getBytes(UTF_8)); |
| Assert.assertEquals(estimate, 3.0); |
| } |
| |
| @Test |
| public void oneKeyManyValues() { |
| UniqueCountMap map = new UniqueCountMap(INIT_ENTRIES, 4); |
| byte[] key = "1234".getBytes(UTF_8); |
| byte[] id = new byte[4]; |
| for (int i = 1; i <= 1000; i++) { |
| id = Util.intToBytes(i, id); |
| double estimate = map.update(key, id); |
| if ((i % 100) == 0) { |
| double err = ((estimate/i) -1.0) * 100; |
| String eStr = String.format("%.3f%%", err); |
| println("i: "+i + "\t Est: " + estimate + "\t" + eStr); |
| } |
| Assert.assertEquals(estimate, i, i * 0.10); |
| Assert.assertEquals(map.getEstimate(key), estimate); |
| Assert.assertTrue(map.getUpperBound(key) >= estimate); |
| Assert.assertTrue(map.getLowerBound(key) <= estimate); |
| } |
| String out = map.toString(); |
| println(out); |
| } |
| |
| @Test |
| public void manyKeys() { |
| UniqueCountMap map = new UniqueCountMap(2000, 4); |
| for (int i = 1; i <= 1000; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| double estimate = map.update(key, new byte[] {1}); |
| Assert.assertEquals(estimate, 1.0); |
| } |
| Assert.assertEquals(1000, map.getActiveEntries()); |
| for (int i = 1; i <= 1000; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| double estimate = map.update(key, new byte[] {2}); |
| Assert.assertEquals(estimate, 2.0); |
| } |
| Assert.assertEquals(1000, map.getActiveEntries()); |
| for (int i = 1; i <= 1000; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| double estimate = map.update(key, new byte[] {3}); |
| Assert.assertEquals(estimate, 3.0); |
| } |
| Assert.assertEquals(1000, map.getActiveEntries()); |
| String out = map.toString(); |
| println(out); |
| } |
| |
| @Test |
| public void forceDeletesAndReuse() { |
| UniqueCountMap map = new UniqueCountMap(156, 4); |
| byte[] key = new byte[4]; |
| byte[] id = new byte[8]; |
| for (int v = 1; v <= 200; v++) { |
| long h = (int) hash(new long[]{v}, 0L)[0]; |
| id = Util.longToBytes(h, id); |
| for(int k = 1; k <= 147; k++) { |
| key = Util.intToBytes(k, key); |
| map.update(key, id); |
| } |
| } |
| //reuse |
| for (int v = 1; v <= 200; v++) { |
| long h = (int) hash(new long[]{v}, 0L)[0]; |
| id = Util.longToBytes(h, id); |
| for(int k = 1+147; k <= (2 * 147); k++) { |
| key = Util.intToBytes(k, key); |
| map.update(key, id); |
| } |
| } |
| Assert.assertNotNull(map.getBaseMap()); |
| Assert.assertNotNull(map.getHllMap()); |
| //println(map.toString()); |
| } |
| |
| |
| |
| @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 |
| } |
| |
| } |