public function testShuffleReindexed() { $collection = new Collection(['first' => new Bar('a'), 'second' => new Bar('b'), 'third' => new Bar('c'), 'fourth' => new Bar('c')]); $result = $collection->shuffle(false); $this->assertArrayHasKey(0, $result); $this->assertArrayHasKey(1, $result); $this->assertArrayHasKey(2, $result); $this->assertArrayHasKey(3, $result); }