public function Sha1StringCanBeComposed()
{
$aRequest = $this->provideRequest();
$composer = new LegacyShaComposer(new Passphrase(self::PASSPHRASE), new HashAlgorithm(HashAlgorithm::HASH_SHA1));
$shaString = $composer->compose($aRequest);
$this->assertEquals(self::SHA1STRING, $shaString);
}