public function addFilterWithFieldAndFilterInstanceShouldAddValueFilterToWorkflow()
{
$filter = $this->getMockFilter();
$this->assertInstanceOf('Plum\\Plum\\Workflow', $this->workflow->addFilter(['filter' => $filter, 'field' => ['foo']]));
$this->assertSame($filter, $this->workflow->getFilters()[0]->getFilter());
}