public function addConverterWithFieldAndConverterInstanceShouldAddValueConverterToWorkflow()
{
$converter = $this->getMockConverter();
$this->assertInstanceOf('Plum\\Plum\\Workflow', $this->workflow->addConverter(['converter' => $converter, 'field' => ['foo']]));
$this->assertSame($converter, $this->workflow->getConverters()[0]->getConverter());
}