RedUNIT\Base\Bean::testDeleteByIDs PHP Method

    public function testDeleteByIDs()
    {
        $book = $this->_createBook();
        $firstPage = reset($book->ownPageList);
        $book->ownPage[$firstPage->id] = NULL;
        try {
            R::store($book);
            fail();
        } catch (\Exception $e) {
            pass();
        }
        $book = $this->_createBook();
        asrt(count($book->ownPage), 2);
        $firstPage = reset($book->ownPageList);
        unset($book->ownPage[$firstPage->id]);
        R::store($book);
        $book = $book->fresh();
        asrt(count($book->ownPage), 1);
        $firstPage = reset($book->ownPageList);
        $book->ownPage[$firstPage->id] = FALSE;
        try {
            R::store($book);
            fail();
        } catch (\Exception $e) {
            pass();
        }
        $book = $book->fresh();
        asrt(count($book->ownPage), 0);
        $book = $this->_createBook();
        $firstAd = reset($book->alias('magazine')->ownAd);
        $book->alias('magazine')->ownAd[$firstAd->id] = NULL;
        try {
            R::store($book);
            fail();
        } catch (\Exception $e) {
            pass();
        }
        $book = $this->_createBook();
        asrt(count($book->alias('magazine')->ownAd), 3);
        $firstAd = reset($book->alias('magazine')->ownAdList);
        unset($book->alias('magazine')->ownAdList[$firstAd->id]);
        R::store($book);
        $book = $book->fresh();
        asrt(count($book->alias('magazine')->ownAd), 2);
        $firstAd = reset($book->alias('magazine')->ownAd);
        $book->alias('magazine')->ownAd[$firstAd->id] = FALSE;
        try {
            R::store($book);
            fail();
        } catch (\Exception $e) {
            pass();
        }
        $book = $book->fresh();
        asrt(count($book->alias('magazine')->ownAd), 1);
    }