Plum\Plum\WorkflowTest::addConverterWithFieldAcceptsCallbackAndCreatesCallbackConverter PHP Method

    public function addConverterWithFieldAcceptsCallbackAndCreatesCallbackConverter()
    {
        $this->workflow->addConverter(['converter' => function ($item) {
            return $item;
        }, 'field' => ['foo']]);
        $this->assertInstanceOf('Plum\\Plum\\Converter\\ConverterInterface', $this->workflow->getConverters()[0]->getConverter());
    }