assertTrue(scheme.passwordMatches(plaintext, encodedPassword));
assertFalse(scheme.passwordMatches(plaintext,
ByteString.valueOf("garbage")));
ByteString schemeEncodedPassword =
scheme.encodePasswordWithScheme(plaintext);
String[] pwComponents = UserPasswordSyntax.decodeUserPassword(
schemeEncodedPassword.toString());
assertNotNull(pwComponents);