/**
  * Test splicing array of elements into collection
  *
  * @return void
  */
 public function testSpliceWithArrayOfReplacements()
 {
     $slice = $this->collection->splice(1, 1, [7, 8, 9]);
     $this->assertInstanceOf(Collection::class, $slice);
     $this->assertAttributeEquals([2], 'elements', $slice);
     $this->assertAttributeEquals([1, 7, 8, 9, 3], 'elements', $this->collection);
 }