@Test
public void shiftWithZeroShiftTest() {
final ArrayList<Shape> source =
new ArrayList<>(Arrays.asList(new Shape[] {new Circle(), new Triangle(), new Square()}));
final List<Shape> result = ShiftUtils.shift(source, 0);
assertEquals(source, result);
}
@Test(expected = IllegalArgumentException.class)
public void shiftWithNullElemTest() {
final ArrayList<Shape> source =
new ArrayList<>(
Arrays.asList(new Shape[] {new Circle(), new Triangle(), null, new Rhomb()}));
ShiftUtils.shift(source, 3);
}
@Test
public void shiftWithOneElemListTest() {
final ArrayList<Shape> source = new ArrayList<>(Arrays.asList(new Shape[] {new Circle()}));
for (int i = 0; i < 10; i++) {
final List<Shape> result = ShiftUtils.shift(source, i);
assertEquals(source, result);
}
}
@Test
public void shiftWithEmptyListTest() {
final ArrayList<Shape> source = new ArrayList<>();
for (int i = 0; i < 10; i++) {
final List<Shape> result = ShiftUtils.shift(source, i);
assertEquals(source, result);
}
}
@Test
public void shiftWithShiftOfIntMaxValueTest() {
final ArrayList<Shape> source =
new ArrayList<>(
Arrays.asList(new Shape[] {new Circle(), new Triangle(), new Square(), new Rhomb()}));
final List<Shape> result = ShiftUtils.shift(source, Integer.MAX_VALUE);
assertEquals(
new ArrayList<>(
Arrays.asList(new Shape[] {new Triangle(), new Square(), new Rhomb(), new Circle()})),
result);
}
@Test
public void shiftWithShiftMoreThanCollectionSizeTest() {
final ArrayList<Shape> source =
new ArrayList<>(
Arrays.asList(new Shape[] {new Circle(), new Triangle(), new Square(), new Rhomb()}));
final List<Shape> result = ShiftUtils.shift(source, 25);
assertEquals(
new ArrayList<>(
Arrays.asList(new Shape[] {new Rhomb(), new Circle(), new Triangle(), new Square()})),
result);
}
@Test(expected = IllegalArgumentException.class)
public void shiftWithNegativeValueAndNullListTest() {
ShiftUtils.shift(null, -3);
}
@Test(expected = IllegalArgumentException.class)
public void shiftWithNegativeValueTest() {
final ArrayList<Shape> source =
new ArrayList<>(Arrays.asList(new Shape[] {new Circle(), new Triangle(), new Square()}));
ShiftUtils.shift(source, -1);
}
@Test(expected = IllegalArgumentException.class)
public void shiftWithNullListTest() {
ShiftUtils.shift(null, 4);
}