@Test
public void itShouldReturnANullHeadWhenTheListIsFirstCreated() {
/* Test input */
LinkedList testList1 = new LinkedList();
assertNull(testList1.getHead());
}
@Test
public void itAddElementAtTheEndOfListWhenPositionIsNotSpecifiedInAddMethod() {
/* Test Input */
LinkedList testInput1 = new LinkedList();
testInput1.add(5);
testInput1.add(6);
testInput1.add(7);
assertSame(7, testInput1.getTail().getData());
assertSame(3, testInput1.size());
}
@Test
public void itShouldGetTheProperNode() {
/* Test Input */
LinkedList testInput1 = new LinkedList();
testInput1.add(5);
testInput1.add(6);
testInput1.add(7);
testInput1.add(10);
assertSame(5, testInput1.get(0));
assertSame(6, testInput1.get(1));
assertSame(7, testInput1.get(2));
assertSame(10, testInput1.get(3));
}
@Test
public void itShouldAddElementIntoExactPositionSpecified() {
/* Test Input */
LinkedList testInput1 = new LinkedList();
testInput1.add(5);
testInput1.add(6);
testInput1.add(7);
testInput1.add(10);
testInput1.add(4, 19);
testInput1.add(2, 20);
assertSame(19, testInput1.get(4));
assertSame(20, testInput1.get(2));
}