Neos\Flow\Tests\Unit\Mvc\ActionRequestTest::aSingleArgumentCanBeSetWithSetArgumentAndRetrievedWithGetArgument PHP Method

    public function aSingleArgumentCanBeSetWithSetArgumentAndRetrievedWithGetArgument()
    {
        $this->actionRequest->setArgument('someArgumentName', 'theValue');
        $this->assertEquals('theValue', $this->actionRequest->getArgument('someArgumentName'));
    }