public function testRemoveItems()
{
$items = $this->createRandomItems();
$items_count = count($items);
$last_index = $items_count - 1;
// pick some random items to remove
$max_remove = round($items_count / 2, 0);
$numof_items_to_remove = self::$faker->numberBetween(1, $max_remove);
$random_items = [];
$randomly_picked_indexes = [];
for ($i = 0; $i < $numof_items_to_remove; $i++) {
$random_index = 0;
do {
if ($last_index > 0) {
$random_index = self::$faker->numberBetween(0, $last_index);
}
} while (in_array($random_index, $randomly_picked_indexes));
$random_items[] = $items[$random_index];
$randomly_picked_indexes[] = $random_index;
}
$list = new ArrayList($items);
$list->removeItems($random_items);
// assert item count
$expected_item_count = $items_count - count($random_items);
$this->assertEquals($expected_item_count, count($list));
// assert item order
$expected_items = [];
foreach ($items as $index => $item) {
if (!in_array($index, $randomly_picked_indexes)) {
$expected_items[] = $item;
}
}
foreach ($list as $index => $item) {
$this->assertEquals($expected_items[$index], $item);
}
}
