atk4\data\tests\TransactionTest::testAtomicOperations PHP Method

    public function testAtomicOperations()
    {
        $db = new Persistence_SQL($this->db->connection);
        $a = ['item' => [['name' => 'John'], ['name' => 'Sue'], ['name' => 'Smith']]];
        $this->setDB($a);
        $m = new Model($db, 'item');
        $m->addField('name');
        $m->load(2);
        $m->addHook('afterSave', function ($m) {
            throw new \Exception('Awful thing happened');
        });
        $m['name'] = 'XXX';
        try {
            $m->save();
        } catch (\Exception $e) {
        }
        $this->assertEquals('Sue', $this->getDB()['item'][2]['name']);
        $m->addHook('afterDelete', function ($m) {
            throw new \Exception('Awful thing happened');
        });
        try {
            $m->delete();
        } catch (\Exception $e) {
        }
        $this->assertEquals('Sue', $this->getDB()['item'][2]['name']);
    }