Package tests

Class DLL_Test

java.lang.Object

tests.DLL_Test

public class DLL_Test
extends Object

A test class for testing MyDLList class.

Constructor Summary

Constructors

Constructor	Description
DLL_Test()

Method Summary

Modifier and Type	Method	Description
void	test_addFirst()	Tests that the addFirst method adds an element into the first index.
void	test_addLast()	Checks if the addLast method is adding the element to the last index.
void	test_contains_Valid()	Checks that the contains method is returning the correct value.
void	test_IsEmpty_Valid()	Checks that the isEmpty method is working.
void	test_removeFirst_Invalid()	Tests the removeFirst method by checking if it returns null when a new doubly linked list is empty.
void	test_removeFirst_Valid()	Checks the removeFirst method is removing the first element.
void	test_removeLast_Invalid()	Tests for when the list is empty, a null value is returned.
void	test_removeLast_Valid()	Tests the removeLast method by checking if the last index of a list no longer contains a certain element.
void	test_size_Valid()	Checks that the list size is the expected output.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DLL_Test

public DLL_Test()

Method Details

test_IsEmpty_Valid

@Test
public void test_IsEmpty_Valid()
                        throws IllegalArgumentException,
IllegalAccessException

Checks that the isEmpty method is working.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_addFirst

@Test
public void test_addFirst()
                   throws IllegalArgumentException,
IllegalAccessException

Tests that the addFirst method adds an element into the first index.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_addLast

@Test
public void test_addLast()
                  throws IllegalArgumentException,
IllegalAccessException

Checks if the addLast method is adding the element to the last index.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_removeFirst_Valid

@Test
public void test_removeFirst_Valid()
                            throws IllegalArgumentException,
IllegalAccessException

Checks the removeFirst method is removing the first element.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_removeFirst_Invalid

@Test
public void test_removeFirst_Invalid()

Tests the removeFirst method by checking if it returns null when a new doubly linked list is empty.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

test_removeLast_Valid

@Test
public void test_removeLast_Valid()
                           throws IllegalArgumentException,
IllegalAccessException

Tests the removeLast method by checking if the last index of a list no longer contains a certain element.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_removeLast_Invalid

@Test
public void test_removeLast_Invalid()

Tests for when the list is empty, a null value is returned.

test_size_Valid

@Test
public void test_size_Valid()
                     throws IllegalArgumentException,
IllegalAccessException

Checks that the list size is the expected output.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.

test_contains_Valid

@Test
public void test_contains_Valid()
                         throws IllegalArgumentException,
IllegalAccessException

Checks that the contains method is returning the correct value.

Throws:

IllegalArgumentException - Occurs when a method has been passed the wrong argument.

IllegalAccessException - See IllegalAccessException for more information.