PopTest\Http\ResponseTest::testSetHeader PHP Method

    public function testSetHeader()
    {
        $r = new Response(200, array('Content-Type' => 'text/plain'));
        $r->setHeader('Content-Type', 'text/plain');
        $r->setHeaders(array('Content-Length' => 1024, 'Content-Encoding' => 'gzip'));
        $this->assertEquals('text/plain', $r->getHeader('Content-Type'));
        $this->assertEquals(1024, $r->getHeader('Content-Length'));
        $this->assertEquals('gzip', $r->getHeader('Content-Encoding'));
    }