/**
* @dataProvider getElements
*/
public function testAdd($element)
{
$this->set->add($element);
$this->assertTrue($this->set->contains($element));
// Test with an array of elements.
$elements = $this->getRandomElements();
$this->set->removeAll();
$this->set->add($elements);
$this->assertCount(count($elements), $this->set);
}
