| /* |
| * 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.cpc; |
| |
| import static org.apache.datasketches.common.TestUtil.CHECK_CPP_FILES; |
| import static org.apache.datasketches.common.TestUtil.GENERATE_JAVA_FILES; |
| import static org.apache.datasketches.common.TestUtil.cppPath; |
| import static org.apache.datasketches.common.TestUtil.javaPath; |
| import static org.testng.Assert.assertEquals; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| |
| import org.apache.datasketches.memory.Memory; |
| import org.testng.annotations.Test; |
| |
| /** |
| * Serialize binary sketches to be tested by C++ code. |
| * Test deserialization of binary sketches serialized by C++ code. |
| */ |
| public class CpcSketchCrossLanguageTest { |
| |
| @Test(groups = {GENERATE_JAVA_FILES}) |
| public void generateBinariesForCompatibilityTesting() throws IOException { |
| final int[] nArr = {0, 100, 200, 2000, 20_000}; |
| final Flavor[] flavorArr = {Flavor.EMPTY, Flavor.SPARSE, Flavor.HYBRID, Flavor.PINNED, Flavor.SLIDING}; |
| int flavorIdx = 0; |
| for (int n: nArr) { |
| final CpcSketch sk = new CpcSketch(11); |
| for (int i = 0; i < n; i++) sk.update(i); |
| assertEquals(sk.getFlavor(), flavorArr[flavorIdx++]); |
| Files.newOutputStream(javaPath.resolve("cpc_n" + n + "_java.sk")).write(sk.toByteArray()); |
| } |
| } |
| |
| @Test(groups = {GENERATE_JAVA_FILES}) |
| void negativeIntEquivalence() throws Exception { |
| CpcSketch sk = new CpcSketch(); |
| byte v1 = (byte) -1; |
| sk.update(v1); |
| short v2 = -1; |
| sk.update(v2); |
| int v3 = -1; |
| sk.update(v3); |
| long v4 = -1; |
| sk.update(v4); |
| assertEquals(sk.getEstimate(), 1, 0.01); |
| Files.newOutputStream(javaPath.resolve("cpc_negative_one_java.sk")).write(sk.toByteArray()); |
| } |
| |
| @Test(groups = {CHECK_CPP_FILES}) |
| public void allFlavors() throws IOException { |
| final int[] nArr = {0, 100, 200, 2000, 20000}; |
| final Flavor[] flavorArr = {Flavor.EMPTY, Flavor.SPARSE, Flavor.HYBRID, Flavor.PINNED, Flavor.SLIDING}; |
| int flavorIdx = 0; |
| for (int n: nArr) { |
| final byte[] bytes = Files.readAllBytes(cppPath.resolve("cpc_n" + n + "_cpp.sk")); |
| final CpcSketch sketch = CpcSketch.heapify(Memory.wrap(bytes)); |
| assertEquals(sketch.getFlavor(), flavorArr[flavorIdx++]); |
| assertEquals(sketch.getEstimate(), n, n * 0.02); |
| } |
| } |
| |
| } |