| /* |
| * 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 java.nio.charset.StandardCharsets.UTF_8; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @SuppressWarnings("javadoc") |
| public class SingleCouponMapTest { |
| |
| @Test |
| public void getEstimateNoEntry() { |
| SingleCouponMap map = SingleCouponMap.getInstance(1000, 4); |
| byte[] key = new byte[] {0, 0, 0, 1}; |
| Assert.assertEquals(map.getEstimate(key), 0.0); |
| Assert.assertEquals(map.getUpperBound(key), 0.0); |
| Assert.assertEquals(map.getLowerBound(key), 0.0); |
| } |
| |
| @Test |
| public void oneKeyOneEntry() { |
| int entries = 16; |
| int keySizeBytes = 4; |
| SingleCouponMap map = SingleCouponMap.getInstance(entries, keySizeBytes); |
| byte[] key = new byte[] {0, 0, 0, 0}; // zero key must work |
| byte[] id = new byte[] {1, 0, 0, 0}; |
| short coupon = (short) Map.coupon16(id); |
| double estimate = map.update(key, coupon); |
| Assert.assertEquals(estimate, 1.0); |
| Assert.assertEquals(map.getEstimate(key), 1.0); |
| Assert.assertTrue(map.getUpperBound(key) >= 1.0); |
| Assert.assertTrue(map.getLowerBound(key) <= 1.0); |
| } |
| |
| @Test |
| public void resize() { |
| int entries = 17; |
| int numKeys = 1000; |
| int keySizeBytes = 4; |
| SingleCouponMap map = SingleCouponMap.getInstance(entries, keySizeBytes); |
| |
| for (int i = 0; i < numKeys; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| byte[] id = new byte[] {1, 0, 0, 0}; |
| short coupon = (short) Map.coupon16(id); |
| double estimate = map.update(key, coupon); |
| Assert.assertEquals(estimate, 1.0); |
| Assert.assertEquals(map.getEstimate(key), 1.0); |
| Assert.assertTrue(map.getUpperBound(key) >= 1.0); |
| Assert.assertTrue(map.getLowerBound(key) <= 1.0); |
| } |
| for (int i = 0; i < numKeys; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| Assert.assertEquals(map.getEstimate(key), 1.0); |
| Assert.assertTrue(map.getUpperBound(key) >= 1.0); |
| Assert.assertTrue(map.getLowerBound(key) <= 1.0); |
| } |
| println(map.toString()); |
| Assert.assertEquals(map.getCurrentCountEntries(), numKeys); |
| } |
| |
| @Test |
| public void manyKeys() { |
| SingleCouponMap map = SingleCouponMap.getInstance(2000, 4); |
| for (int i = 1; i <= 1000; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| double estimate = map.update(key, (short) 1); //bogus coupon |
| Assert.assertEquals(estimate, 1.0); |
| Assert.assertEquals(map.getEstimate(key), 1.0); |
| Assert.assertTrue(map.getUpperBound(key) >= 1.0); |
| Assert.assertTrue(map.getLowerBound(key) <= 1.0); |
| } |
| for (int i = 1; i <= 1000; i++) { |
| byte[] key = String.format("%4s", i).getBytes(UTF_8); |
| double estimate = map.update(key, (short) 2); //different bogus coupon |
| Assert.assertEquals(estimate, 0.0); // signal to promote |
| } |
| Assert.assertEquals(map.getCurrentCountEntries(), 1000); |
| } |
| |
| @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 |
| } |
| |
| } |