Fenos\Notifynder\Contracts\NotifynderGroupCategoryDB::addMultipleCategoriesToGroup PHP Method

    public function addMultipleCategoriesToGroup($groupName, array $names);

 /** @test */
 function it_add_multiple_categories_to_a_group(NotifynderGroupCategoryDB $groupCategoryDB)
 {
     $group_name = 'mygroup';
     $category1 = 'mycategory1';
     $category2 = 'mycategory2';
     $groupCategoryDB->addMultipleCategoriesToGroup($group_name, [$category1, $category2])->shouldBeCalled()->willReturn(2);
     $this->addMultipleCategoriesToGroup($group_name, $category1, $category2)->shouldReturn(2);
 }