Neos\Flow\Tests\Unit\Http\ResponseTest::setAndGetLastModifiedSetsTheLastModifiedHeader PHP Method

    public function setAndGetLastModifiedSetsTheLastModifiedHeader()
    {
        $date = \DateTime::createFromFormat(DATE_RFC2822, 'Tue, 22 May 2012 12:00:00 GMT');
        $fig = \DateTime::createFromFormat(DATE_RFC2822, 'Tue, 21 May 2012 12:00:00 GMT');
        $response = new Response();
        $response->setNow($date);
        $this->assertNull($response->getLastModified());
        $response->setLastModified($fig);
        $this->assertEquals($fig, $response->getLastModified());
    }