anchor.diff:                  (err['codeName'] == expectedError3['codeName']));
   
           expect(result, true);
  -      });
  +      }, skip: isNoMoreMongodbCR);
   
         test("Throw exception when auth mechanism isn't supported", () async {
           final authMechanism = 'Anything';
  
positive.code:   group('Authentication', () {
      var serverRequiresAuth = false;
      var isVer3_6 = false;
  
      setUpAll(() async {
        serverRequiresAuth = await testDatabase(mongoDbUri);
        if (serverRequiresAuth) {
          var fcv = await getFcv(mongoDbUri);
          isVer3_6 = fcv == '3.6';
        }
      });
  
  
negative.code:                 (err['codeName'] == expectedError3['codeName']));
  
          expect(result, true);
        }, skip: isNoMoreMongodbCR);
  
        test('Setting mongodb-cr with selectAuthenticationMechanisn', () async {
          var db = Db(mongoDbUri);
  