opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/UnsignedLongSetTest.java

   1 /*
   2  * Copyright (c) 2021 PANTHEON.tech, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.datastore.utils;
   9
  10 import static org.junit.Assert.assertArrayEquals;
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertTrue;
  14
  15 import java.io.ByteArrayInputStream;
  16 import java.io.ByteArrayOutputStream;
  17 import java.io.DataInputStream;
  18 import java.io.DataOutputStream;
  19 import java.io.IOException;
  20 import org.junit.Test;
  21
  22 public class UnsignedLongSetTest {
  23     @Test
  24     public void testOperations() {
  25         final var set = MutableUnsignedLongSet.of();
  26         assertEquals("MutableUnsignedLongSet{size=0}", set.toString());
  27         assertFalse(set.contains(0));
  28
  29         set.add(0);
  30         assertTrue(set.contains(0));
  31         assertEquals("MutableUnsignedLongSet{span=[0..0], size=1}", set.toString());
  32
  33         set.add(1);
  34         assertTrue(set.contains(1));
  35         assertEquals("MutableUnsignedLongSet{span=[0..1], size=1}", set.toString());
  36         set.add(1);
  37         assertEquals("MutableUnsignedLongSet{span=[0..1], size=1}", set.toString());
  38
  39         set.add(4);
  40         assertEquals("MutableUnsignedLongSet{span=[0..4], size=2}", set.toString());
  41
  42         set.add(3);
  43         assertEquals("MutableUnsignedLongSet{span=[0..4], size=2}", set.toString());
  44
  45         set.add(2);
  46         assertEquals("MutableUnsignedLongSet{span=[0..4], size=1}", set.toString());
  47
  48         assertTrue(set.contains(2));
  49         assertTrue(set.contains(3));
  50         assertTrue(set.contains(4));
  51     }
  52
  53     @Test
  54     public void testSerialization() throws IOException {
  55         final var tmp = MutableUnsignedLongSet.of();
  56         tmp.add(0);
  57         tmp.add(1);
  58         tmp.add(4);
  59         tmp.add(3);
  60
  61         final var set = tmp.immutableCopy();
  62
  63         final var bos = new ByteArrayOutputStream();
  64         try (var out = new DataOutputStream(bos)) {
  65             set.writeTo(out);
  66         }
  67
  68         final var bytes = bos.toByteArray();
  69         assertArrayEquals(new byte[] { 0, 0, 0, 2, 16, 2, 17, 3, 5 }, bytes);
  70
  71         final ImmutableUnsignedLongSet read;
  72         try (var in = new DataInputStream(new ByteArrayInputStream(bytes))) {
  73             read = ImmutableUnsignedLongSet.readFrom(in);
  74             assertEquals(0, in.available());
  75         }
  76
  77         assertEquals(set, read);
  78     }
  79
  80     @Test
  81     public void testToRangeSet() {
  82         final var set = MutableUnsignedLongSet.of();
  83         set.add(0);
  84         set.add(1);
  85         set.add(4);
  86         set.add(3);
  87         assertEquals("[[0..2), [3..5)]", set.toRangeSet().toString());
  88     }
  89 }