public function testTextStrokeDisable()
{
$excepted = Helper::getExpected(__FUNCTION__ . '.jpg');
$actual = Helper::getActual(__FUNCTION__ . '.jpg');
$original = Helper::getOrig('butterfly.jpg');
$font = Helper::getOrig('font.ttf');
$img = new Image($original);
$img->addFilter('text', 'Nice Butterfly', $font, array('stroke-size' => null, 'stroke-color' => null))->saveAs($actual);
Helper::isFileEq($actual, $excepted);
}