PopTest\Db\SqlTest::testGroupByArray PHP Method

    public function testGroupByArray()
    {
        $s = new Sql(Db::factory('Sqlite', array('database' => __DIR__ . '/../tmp/test.sqlite')), 'users');
        $s->select()->groupBy('id, username');
        $this->assertEquals('SELECT * FROM "users" GROUP BY "id", "username"', $s->render(true));
    }