public function testChildrenOrganizationIsAdded()
 {
     $parent_organization = Organization::find(1);
     $child_organization = new Organization();
     $child_organization->name = 'Children Organization A';
     $parent_organization->children()->save($child_organization);
     $child_organization = new Organization();
     $child_organization->name = 'Children Organization B';
     $parent_organization->children()->save($child_organization);
     $children = $parent_organization->children()->get();
     $children = $children->keyBy('name');
     $this->assertTrue($children->has('Children Organization A'));
     $this->assertTrue($children->has('Children Organization B'));
     $orgToDelete = Organization::where('name', 'Children Organization A')->first();
     $orgToDelete->delete();
     $orgToDelete = Organization::where('name', 'Children Organization B')->first();
     $orgToDelete->delete();
 }