function testGetActivity()
 {
     $activity_name = "Activity One";
     $activity_date = '2016-01-01';
     $activity_location = "Location";
     $activity_description = "Description of Activity One";
     $activity_price = "Price of Activity One";
     $activity_quantity = 10;
     $business_id = 1;
     $activity_category_id = 2;
     $id = 1;
     $test_activity = new Activity($activity_name, $activity_date, $activity_location, $activity_description, $activity_price, $activity_quantity, $business_id, $activity_category_id, $id);
     $test_activity->save();
     $activity_name2 = "Activity Two";
     $activity_date2 = '2016-02-02';
     $activity_location2 = "Location Two";
     $activity_description2 = "Description of Activity Two";
     $activity_price2 = "Price of Activity Two";
     $activity_quantity2 = 20;
     $business_id2 = 21;
     $activity_category_id2 = 22;
     $id2 = 2;
     $test_activity2 = new Activity($activity_name, $activity_date, $activity_location, $activity_description, $activity_price, $activity_quantity, $business_id, $activity_category_id, $id);
     $test_activity2->save();
     $category_name = "music";
     $new_category = new Category($category_name);
     $new_category->save();
     $new_category->addActivity($test_activity);
     $new_category->addActivity($test_activity2);
     $result = $new_category->getActivities();
     $this->assertEquals([$test_activity, $test_activity2], $result);
 }