/**
  * @covers ::ofArray
  * @dataProvider provideMergeableIndexables
  */
 public function testCanMergeIntoAssignablesIndex($ours, $theirs, $expectedResult)
 {
     // ----------------------------------------------------------------
     // setup your test
     // ----------------------------------------------------------------
     // perform the change
     MergeIntoProperty::ofArray($ours, "child", $theirs);
     // ----------------------------------------------------------------
     // test the results
     $this->assertEquals($expectedResult, $ours);
 }