/**
* Checks adding and removing items works correctly.
*
* @depends testInstantiateWithOneItem
*/
public function testAddingAndRemovingItems(Collection $collection)
{
$values = [0 => "hello"];
$collection->add('hello again');
$this->assertEquals(array_merge($values, ['hello again']), $collection->all());
$this->assertEquals(2, $collection->count());
$this->assertCount(2, $collection);
$this->assertSame($collection, $collection->remove(0));
$this->assertEquals(1, $collection->count());
$this->assertCount(1, $collection);
}
