/** To test if deleting the last node */
@Test
public void testDeleteLast() {
// delete the last node
filledTest.deleteLast();
twoTest.deleteLast();
oneTest.deleteLast();
emptyTest.deleteLast();
// the test should check that the last element was deleted
assertEquals("testStrin", filledTest.toString());
assertEquals("t", twoTest.toString());
assertEquals("", oneTest.toString());
assertEquals("", emptyTest.toString());
}
/** To test if deleting the node following the current node */
@Test
public void testDeleteNext() {
// delete the node after the current node
filledTest.deleteNext(filledTest.getFirstNode());
// the e should have been deleted
assertEquals("tstString", filledTest.toString());
}
/** To test if deleting the first node */
@Test
public void testDeleteFirst() {
// delete the first node
filledTest.deleteFirst();
// the first letter should have been deleted
assertEquals("estString", filledTest.toString());
}