public function apply($transformer, $instant_article, $element)
{
$footer = Footer::create();
$instant_article->withFooter($footer);
$transformer->transform($footer, $element);
return $instant_article;
}
public function testFooter()
{
$footer = Footer::create();
$expected = '';
$result = $footer->render();
$this->assertEquals($expected, $result);
$warnings = array();
InstantArticleValidator::getReport(array($footer), $warnings);
$this->assertEquals(1, count($warnings));
$this->assertContains('Footer must have at least one of the', $warnings[0]->__toString());
}