blob: 19d167f8c8ee7e3cf243cf651bb796aba3e2017f [file] [log] [blame]
/*
* 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);
}
}
}