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feature: #1299 Add Identity Map Pattern (#2094)

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* #1299 IMPLEMENT IDENTITY MAP PATTERN.

* #1299 Add docstrings, README, testCases and class diagram.

* #1299 Update a comment string in DB implementation.

* #1299 Fix code smells.

* #1299 Fix code smells and add comments to App.java

* #1299 Update constant name.

* #1299 Remove java version dependency and update README.md.

* #1299 Add lombok to PersonFinder.java.

* #1299 Add dependency to maven-assembly-plugin.

* #1299 Use java streams in PersonDbSimulatorImplementation.java.

* #1299 Add print statements while returning the person object.

* #1299 Update README.md.

* #1299 Add puml file.

* Update README.md
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2022-11-10 06:55:44 +11:00
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commit d2599a2904
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identity-map/src/test/java/com/iluwatar/identitymap/IdentityMapTest.java
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/*
* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
*
* The MIT License
* Copyright © 2014-2022 Ilkka Seppälä
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.iluwatar.identitymap;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
class IdentityMapTest {
@Test
void addToMap(){
// new instance of an identity map(not connected to any DB here)
IdentityMap idMap = new IdentityMap();
// Dummy person instances
Person person1 = new Person(11, "Michael", 27304159);
Person person2 = new Person(22, "John", 42273631);
Person person3 = new Person(33, "Arthur", 27489171);
Person person4 = new Person(44, "Finn", 20499078);
// id already in map
Person person5 = new Person(11, "Michael", 40599078);
// All records go into identity map
idMap.addPerson(person1);
idMap.addPerson(person2);
idMap.addPerson(person3);
idMap.addPerson(person4);
idMap.addPerson(person5);
// Test no duplicate in our Map.
Assertions.assertEquals(4,idMap.size(),"Size of the map is incorrect");
// Test record not updated by add method.
Assertions.assertEquals(27304159,idMap.getPerson(11).getPhoneNum(),"Incorrect return value for phone number");
}
@Test
void testGetFromMap() {
// new instance of an identity map(not connected to any DB here)
IdentityMap idMap = new IdentityMap();
// Dummy person instances
Person person1 = new Person(11, "Michael", 27304159);
Person person2 = new Person(22, "John", 42273631);
Person person3 = new Person(33, "Arthur", 27489171);
Person person4 = new Person(44, "Finn", 20499078);
Person person5 = new Person(55, "Michael", 40599078);
// All records go into identity map
idMap.addPerson(person1);
idMap.addPerson(person2);
idMap.addPerson(person3);
idMap.addPerson(person4);
idMap.addPerson(person5);
// Test for dummy persons in the map
Assertions.assertEquals(person1,idMap.getPerson(11),"Incorrect person record returned");
Assertions.assertEquals(person4,idMap.getPerson(44),"Incorrect person record returned");
// Test for person with given id not in map
Assertions.assertNull(idMap.getPerson(1), "Incorrect person record returned");
}
}