@Test public void addAllAtIndexEmpty() { MutableList<Integer> integers = this.newWith(5); integers.addAll(0, Lists.fixedSize.of()); Verify.assertSize(1, integers); Verify.assertStartsWith(integers, 5); integers.addAll(0, FastList.newList(4)); Verify.assertSize(1, integers); Verify.assertStartsWith(integers, 5); integers.addAll(0, Sets.fixedSize.of()); Verify.assertSize(1, integers); Verify.assertStartsWith(integers, 5); FastList<String> zeroSizedList = FastList.newList(0); zeroSizedList.addAll(0, this.newWith("1", "2")); }