Illuminate\Foundation\Testing\Concerns\InteractsWithPages::assertFilterProducesResults PHP Method

    protected function assertFilterProducesResults($filter)
    {
        $crawler = $this->filterByNameOrId($filter);
        if (!count($crawler)) {
            throw new InvalidArgumentException("Nothing matched the filter [{$filter}] CSS query provided for [{$this->currentUri}].");
        }
        return $this;
    }