anchor.diff:            @include flex-direction(row);
           }
         ''',
  -      '.box {\n'
  -      '  -moz-box-sizing: border-box;\n'
  -      '  -webkit-box-sizing: border-box;\n'
  -      '  box-sizing: border-box; }\n'
  -      '\n'
  -      '.flex {\n'
  -      '  display: -webkit-flex;\n'
  -      '  display: flex;\n'
  -      '  -webkit-flex-direction: row;\n'
  -      '  flex-direction: row; }\n',
  -      useSassC: useSassC);
  +          '.box {\n'
  +          '  -moz-box-sizing: border-box;\n'
  +          '  -webkit-box-sizing: border-box;\n'
  +          '  box-sizing: border-box; }\n'
  +          '\n'
  +          '.flex {\n'
  +          '  display: -webkit-flex;\n'
  +          '  display: flex;\n'
  +          '  -webkit-flex-direction: row;\n'
  +          '  flex-direction: row; }\n',
  +          useSassC: useSassC);
       });
   
       test('support animations & transitions', () async {
  -      await _expectSassOutput(r'''
  +      await _expectSassOutput(
  +          r'''
           @import 'compass/css3';
   
           .animation {
  
positive.code:           @include single-transition;
          }
        ''',
        '.animation {\n'
        '  -moz-animation: border;\n'
        '  -webkit-animation: border;\n'
        '  animation: border; }\n'
        '\n'
        '.transition {\n'
        '  -moz-transition: all 1s;\n'
        '  -o-transition: all 1s;\n'
        '  -webkit-transition: all 1s;\n'
        '  transition: all 1s; }\n',
        useSassC: useSassC);
      });
  
      test('support user-select', () async {
        await _expectSassOutput(r'''
          @import 'compass/css3';
  
          .select {
            @include user-select(text);
          }
        ''',
        '.select {\n'
        '  -moz-user-select: text;\n'
        '  -ms-user-select: text;\n'
        '  -webkit-user-select: text;\n'
        '  user-select: text; }\n',
        useSassC: useSassC);
      });
  
      test('support transforms', () async {
        await _expectSassOutput(r'''
          @import 'compass/css3';
  
          .transform2d {
  
negative.code:           }
          }
        ''',
            '.browsers {\n'
            '  -moz: android-firefox, firefox;\n'
            '  -ms: ie, ie-mobile;\n'
            '  -o: opera, opera-mini, opera-mobile;\n'
            '  -webkit: android, android-chrome, blackberry, chrome, ios-safari, opera, opera-mobile, safari; }\n'
            '\n'
            '.prefixes {\n'
            '  android: -webkit;\n'
            '  android-chrome: -webkit;\n'
            '  android-firefox: -moz;\n'
            '  blackberry: -webkit;\n'
            '  chrome: -webkit;\n'
            '  firefox: -moz;\n'
            '  ie: -ms;\n'
            '  ie-mobile: -ms;\n'
            '  ios-safari: -webkit;\n'
            '  opera: -o, -webkit;\n'
            '  opera-mini: -o;\n'
            '  opera-mobile: -o, -webkit;\n'
            '  safari: -webkit; }\n',
            useSassC: useSassC);
      });
    }
  
  