src/test/java/org/apache/datasketches/tuple/arrayofdoubles/ArrayOfDoublesSketchSerDeTest.java

/*
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 * 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,
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 * specific language governing permissions and limitations
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package org.apache.datasketches.tuple.arrayofdoubles;

import static org.apache.datasketches.common.TestUtil.javaPath;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;

import java.io.IOException;
import java.nio.file.Files;

import org.testng.annotations.Test;

public class ArrayOfDoublesSketchSerDeTest {

  @Test(groups = {"generate_java_files"})
  public void generateBinariesForCompatibilityTestingOneValue() throws IOException {
    final int[] nArr = {0, 1, 10, 100, 1000, 10_000, 100_000, 1_000_000};
    for (int n: nArr) {
      final ArrayOfDoublesUpdatableSketch sk = new ArrayOfDoublesUpdatableSketchBuilder().build();
      for (int i = 0; i < n; i++) sk.update(i, new double[] {i});
      Files.newOutputStream(javaPath.resolve("aod_1_n" + n + "_java.sk")).write(sk.compact().toByteArray());
    }
  }

  @Test(groups = {"generate_java_files"})
  public void generateBinariesForCompatibilityTestingThreeValues() throws IOException {
    final int[] nArr = {0, 1, 10, 100, 1000, 10_000, 100_000, 1_000_000};
    for (int n: nArr) {
      final ArrayOfDoublesUpdatableSketch sk = new ArrayOfDoublesUpdatableSketchBuilder().setNumberOfValues(3).build();
      for (int i = 0; i < n; i++) sk.update(i, new double[] {i, i, i});
      Files.newOutputStream(javaPath.resolve("aod_3_n" + n + "_java.sk")).write(sk.compact().toByteArray());
    }
  }

  @Test(groups = {"generate_java_files"})
  public void generateBinariesForCompatibilityTestingNonEmptyNoEntries() throws IOException {
    final ArrayOfDoublesUpdatableSketch sk =
        new ArrayOfDoublesUpdatableSketchBuilder().setSamplingProbability(0.01f).build();
    sk.update(1, new double[] {1});
    assertFalse(sk.isEmpty());
    assertEquals(sk.getRetainedEntries(), 0);
    Files.newOutputStream(javaPath.resolve("aod_1_non_empty_no_entries_java.sk")).write(sk.compact().toByteArray());
  }

}