@Test
public void testsGetRestArray() {
FunctionalList testList = new FunctionalArrayList();
assertEquals("get Rest on empty", 0, testList.rest().size());
testList.add("zero");
assertEquals("get Rest on list of one", 0, testList.rest().size());
testList.add("one");
testList.add("two");
testList.add("three");
assertEquals("get Rest on list of 4", 3, testList.rest().size());
assertEquals("test specific elements", "one", testList.rest().get(0).getReturnValue());
assertEquals("test specific elements", "two", testList.rest().get(1).getReturnValue());
assertEquals("test specific elements", "three", testList.rest().get(2).getReturnValue());
}
@Test
public void testsGetHeadLinked() {
FunctionalList testList = new FunctionalLinkedList();
assertEquals("get Head on empty", ErrorMessage.EMPTY_STRUCTURE, testList.head().getError());
testList.add("zero");
testList.add("one");
testList.add("two");
assertEquals(
"get Head when not empty, no error", ErrorMessage.NO_ERROR, testList.head().getError());
assertEquals("get Head when not empty, correct item", "zero", testList.head().getReturnValue());
}