This file has a single method that performs 12 tests on different instances of t

Question

This file has a single method that performs 12 tests on different instances of the SharedFlyweight and UnSharedFlyweight classes.

Break the 12 tests into 4 groups of 3 tests each

package com.hundredwordsgof.flyweight;

//import static org.junit.Assert.*;
//import org.junit.Test;
import static org.junit.jupiter.api.Assertions.*;

//import org.junit.Before;
//import org.junit.Test;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

/**
* Test Flyweight pattern.
*/
public class FlyweightTest {

@Test
public void testFlyweight() {

// Create 3 SharedFlyweight instances.
Flyweight sharedflyweight1 = FlyweightFactory.getFlyweight("key1", "value1");
Flyweight sharedflyweight2 = FlyweightFactory.getFlyweight("key2", "value2");
Flyweight sharedflyweight3 = FlyweightFactory.getFlyweight("key1", "value3");

// Create 3 UnSharedFlyweight instances.
Flyweight unsharedFlyweight1 = FlyweightFactory.getFlyweight("unsharedKey1",
"value1");
Flyweight unsharedFlyweight2 = FlyweightFactory.getFlyweight("unsharedKey2",
"value2");
Flyweight unsharedFlyweight3 = FlyweightFactory.getFlyweight("unsharedKey1",
"value3");

// 3 shared flyweight object equivalency tests
assertNotEquals(sharedflyweight1, sharedflyweight2);
assertEquals(sharedflyweight1, sharedflyweight3);
assertNotEquals(sharedflyweight2, sharedflyweight3);

// 3 unshared flyweight object non-equivalency tests
assertNotEquals(unsharedFlyweight1, unsharedFlyweight2);
assertNotEquals(unsharedFlyweight1, unsharedFlyweight3);
assertNotEquals(unsharedFlyweight2, unsharedFlyweight3);

// 3 shared flyweight tests assessing the values for the shared (instrinsic) state.

if (sharedflyweight1 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {
assertEquals("value1",
((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight1)
.getIntrinsicState());
}

if (sharedflyweight2 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {
assertEquals("value2",
((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight2)
.getIntrinsicState());
}

if (sharedflyweight3 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {
assertEquals("value1",
((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight3)
.getIntrinsicState());
}

// 3 unshared flyweight tests assessing the values of their states.

if (unsharedFlyweight1 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {
assertEquals("value1",
((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight1)
.getState());
}

if (unsharedFlyweight2 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {
assertEquals("value2",
((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight2)
.getState());
}

if (unsharedFlyweight3 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {
assertEquals("value3",
((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight3)
.getState());
}
}
}

Explanation / Answer

package com.hundredwordsgof.flyweight;

//import static org.junit.Assert.*;

//import org.junit.Test;

import static org.junit.jupiter.api.Assertions.*;

//import org.junit.Before;

//import org.junit.Test;

import org.junit.jupiter.api.BeforeAll;

import org.junit.jupiter.api.Test;

/**

* Test Flyweight pattern.

*/

public class FlyweightTest {

@Test

public void testFlyweight() {

// Create 3 SharedFlyweight instances.

Flyweight sharedflyweight1 = FlyweightFactory.getFlyweight("key1", "value1");

Flyweight sharedflyweight2 = FlyweightFactory.getFlyweight("key2", "value2");

Flyweight sharedflyweight3 = FlyweightFactory.getFlyweight("key1", "value3");

// Create 3 UnSharedFlyweight instances.

Flyweight unsharedFlyweight1 = FlyweightFactory.getFlyweight("unsharedKey1",

"value1");

Flyweight unsharedFlyweight2 = FlyweightFactory.getFlyweight("unsharedKey2",

"value2");

Flyweight unsharedFlyweight3 = FlyweightFactory.getFlyweight("unsharedKey1",

"value3");

// 3 shared flyweight object equivalency tests

assertNotEquals(sharedflyweight1, sharedflyweight2);

assertEquals(sharedflyweight1, sharedflyweight3);

assertNotEquals(sharedflyweight2, sharedflyweight3);

// 3 unshared flyweight object non-equivalency tests

assertNotEquals(unsharedFlyweight1, unsharedFlyweight2);

assertNotEquals(unsharedFlyweight1, unsharedFlyweight3);

assertNotEquals(unsharedFlyweight2, unsharedFlyweight3);

// 3 shared flyweight tests assessing the values for the shared (instrinsic) state.

if (sharedflyweight1 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {

assertEquals("value1",

((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight1)

.getIntrinsicState());

}

if (sharedflyweight2 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {

assertEquals("value2",

((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight2)

.getIntrinsicState());

}

if (sharedflyweight3 instanceof com.hundredwordsgof.flyweight.SharedFlyweight) {

assertEquals("value1",

((com.hundredwordsgof.flyweight.SharedFlyweight) sharedflyweight3)

.getIntrinsicState());

}

// 3 unshared flyweight tests assessing the values of their states.

if (unsharedFlyweight1 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {

assertEquals("value1",

((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight1)

.getState());

}

if (unsharedFlyweight2 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {

assertEquals("value2",

((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight2)

.getState());

}

if (unsharedFlyweight3 instanceof com.hundredwordsgof.flyweight.UnSharedFlyweight) {

assertEquals("value3",

((com.hundredwordsgof.flyweight.UnSharedFlyweight) unsharedFlyweight3)

.getState());

}

}

}

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