Edit so that you are storing Integer data instead of String data please

import static org.junit.Assert.*;

import org.junit.After;

import org.junit.Before;

import org.junit.Test;

public class MyStorageTest

{

/*

* Default constructor for test class GenericListTest

*/

public MyStorageTest()

{

}

/**

* Test constructor

*/

@Test

public void testGenericList()

{

GenericList storage = new GenericList();

assertEquals(0, storage.size());

}

/**

* Test toString

*/

@Test

public void testToString1()

{

GenericList storage = new GenericList();

assertEquals("", storage.toString());

}

@Test

public void testAddOne()

{

GenericList storage = new GenericList();

storage.add("first");

assertEquals("first", storage.toString());

assertEquals(1, storage.size());

}

@Test

public void testAddTwo()

{

GenericList storage = new GenericList();

storage.add("first");

storage.add("second");

assertEquals("first, second", storage.toString());

assertEquals(2, storage.size());

}

@Test

public void testAddFifteen()

{

GenericList storage = new GenericList();

for (int i = 1; i < 16; i++)

{

storage.add(i + "");

}

assertEquals("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15", storage.toString());

assertEquals(15, storage.size());

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testGetEmptyStorage()

{

GenericList storage = new GenericList();

String data = storage.get(0);

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testGetInvalidIndex()

{

GenericList storage = new GenericList();

storage.add("first");

String data = storage.get(3);

}

@Test

public void testGetOneItem()

{

GenericList storage = new GenericList();

storage.add("first");

String data = storage.get(0);

assertEquals(data, "first");

}

@Test

public void testGetItemFromMiddle()

{

GenericList storage = new GenericList();

for (int i = 1; i < 15; i++)

{

storage.add(i + "");

}

assertEquals("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14", storage.toString());

assertEquals(14, storage.size());

assertEquals("7", storage.get(6));

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testSetEmptyStorage()

{

GenericList storage = new GenericList();

storage.set(0, "first");

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testSetInvalidIndex()

{

GenericList storage = new GenericList();

storage.add("first");

storage.set(-1, "will fail");

}

@Test

public void testSetOneItem()

{

GenericList storage = new GenericList();

storage.add("first");

assertEquals("first", storage.get(0));

storage.set(0, "FIRST");

assertEquals("FIRST", storage.get(0));

}

@Test

public void testSetItemFromMiddle()

{

GenericList storage = new GenericList();

for (int i = 1; i < 15; i++)

{

storage.add(i + "");

}

assertEquals("1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14", storage.toString());

assertEquals(14, storage.size());

assertEquals("7", storage.get(6));

storage.set(6, "777");

assertEquals("777", storage.get(6));

}

@Test

public void testClearEmptyList()

{

GenericList storage = new GenericList();

storage.clear();

assertEquals(0, storage.size());

}

@Test

public void testClearNonEmptyList()

{

GenericList storage = new GenericList();

for (int i = 1; i < 101; i++)

{

storage.add(i + "");

}

assertEquals(100, storage.size());

storage.clear();

assertEquals(0, storage.size());

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testSwap1()

{

GenericList b = new GenericList();

b.swap(0, 1);

}

@Test (expected=java.lang.ArrayIndexOutOfBoundsException.class)

public void testSwap2()

{

GenericList b = new GenericList();

b.add("first data");

b.swap(0, 1);

}

@Test

public void testSwap3()

{

GenericList b = new GenericList();

b.add("first_data");

b.add("second_data");

b.swap(0, 1);

assertEquals("second_data", b.get(0));

assertEquals("first_data", b.get(1));

}

}