anchor.diff:            },
           },
         };
  -      await d.dir(appPath, [d.pubspec(pkg)]).create();
  -      await expectValidation(flutterPluginFormat, errors: isNotEmpty);
  +      await d.dir(appPath, [d.pubspec(pkg), d.dir('ios')]).create();
  +      await expectValidation(flutterPluginFormat,
  +          errors: contains(
  +            contains(
  +                'Please consider increasing the Flutter SDK requirement to ^1.10.0'),
  +          ));
       });
     });
   }
  
positive.code:           },
          },
        };
        await d.dir(appPath, [d.pubspec(pkg)]).create();
        await expectValidation(flutterPluginFormat, errors: isNotEmpty);
      });
  
      test('is a flutter 1.8.0 plugin with new format', () async {
  
negative.code:           },
          },
        };
        await d.dir(appPath, [d.pubspec(pkg), d.dir('ios')]).create();
        await expectValidation(flutterPluginFormat);
      });
    });
  
    group('should consider a package invalid if it', () {
      test('is a flutter plugin with old and new format', () async {
        var pkg = packageMap('test_pkg', '1.0.0', {
          'flutter': {'sdk': 'flutter'},
  