CRUDlexTests\TwigExtensionsTest::testArrayColumn PHP Method

    public function testArrayColumn()
    {
        $filter = $this->app['twig']->getFilter('arrayColumn');
        $read = call_user_func($filter->getCallable(), [['id' => 1], ['id' => 2], ['id' => 3]], 'id');
        $expected = [1, 2, 3];
        $this->assertSame($expected, $read);
    }