public function testSignRequest()
{
$signer = new RequestSigner();
$signer->addCustomHeader('Custom1');
$request = new DummyRequest();
$request->headers = array('Content-Type' => 'text/plain', 'Date' => 'Fri, 19 Mar 1982 00:00:04 GMT', 'Custom1' => 'Value1');
$this->assertEquals(DigestVersion1Test::EXPECTED_HASH, $signer->signRequest($request, 'secret-key'));
}
