gerrit.onap Code Review - dcaegen2/services/sdk.git/blob

   1 /*
   2  * ============LICENSE_START====================================
   3  * DCAEGEN2-SERVICES-SDK
   4  * =========================================================
   5  * Copyright (C) 2019 Nokia. All rights reserved.
   6  * =========================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *       http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=====================================
  19  */
  20
  21 package org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.listener;
  22
  23 import static org.assertj.core.api.Assertions.assertThat;
  24
  25 import org.junit.jupiter.api.Test;
  26 import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.listener.MerkleTree;
  27
  28 /**
  29  * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
  30  * @since February 2019
  31  */
  32 class MerkleTreeTest {
  33
  34     @Test
  35     void shouldBeAbleToGetEntries() {
  36         MerkleTree<String> cut = emptyTree()
  37                 .add("value1", "ala", "ma", "kota")
  38                 .add("value2", "ala", "ma", "psa");
  39
  40         assertThat(cut.get("ala", "ma", "kota")).contains("value1");
  41         assertThat(cut.get("ala", "ma", "psa")).contains("value2");
  42     }
  43
  44     @Test
  45     void shouldReturnNoneForNonExistingPaths() {
  46         MerkleTree<String> cut = emptyTree()
  47                 .add("value1", "ala", "ma", "kota")
  48                 .add("value2", "ala", "ma", "psa");
  49
  50         assertThat(cut.get("ala", "je", "obiad")).isEmpty();
  51     }
  52
  53     @Test
  54     void shouldReturnNoneWhenNodeDoesntContainValue() {
  55         MerkleTree<String> cut = emptyTree()
  56                 .add("value1", "ala", "ma", "kota")
  57                 .add("value2", "ala", "ma", "psa");
  58
  59         assertThat(cut.get("ala", "ma")).isEmpty();
  60     }
  61
  62
  63     @Test
  64     void shouldNotCreateNewObjectWhenNothingChanged() {
  65         MerkleTree<String> cut = emptyTree()
  66                 .add("some value", "ala", "ma", "kota");
  67
  68         final MerkleTree<String> result = cut.add("some value", "ala", "ma", "kota");
  69
  70         assertThat(result).isSameAs(cut);
  71     }
  72
  73     @Test
  74     void shouldRecalculateHashesAfterAddingNewNode() {
  75         MerkleTree<String> cut = emptyTree()
  76                 .add("value1", "ala", "ma", "kota")
  77                 .add("value2", "ala", "ma", "psa")
  78                 .add("value3", "ala", "name");
  79
  80         final MerkleTree<String> modified = cut.add("value4", "ala", "surname");
  81
  82         assertThat(modified).isNotSameAs(cut);
  83
  84         assertThat(modified.hashOf("ala", "ma")).isEqualTo(cut.hashOf("ala", "ma"));
  85         assertThat(modified.hashOf("ala", "ma", "kota")).isEqualTo(cut.hashOf("ala", "ma", "kota"));
  86         assertThat(modified.hashOf("ala", "ma", "psa")).isEqualTo(cut.hashOf("ala", "ma", "psa"));
  87         assertThat(modified.hashOf("ala", "name")).isEqualTo(cut.hashOf("ala", "name"));
  88
  89         assertThat(modified.hashOf("ala", "surname")).isNotEqualTo(cut.hashOf("ala", "surname"));
  90         assertThat(modified.hashOf("ala")).isNotEqualTo(cut.hashOf("ala"));
  91         assertThat(modified.hash()).isNotEqualTo(cut.hash());
  92     }
  93
  94     private MerkleTree<String> emptyTree() {
  95         return MerkleTree.emptyWithDefaultDigest(String::getBytes);
  96     }
  97 }