anchor.diff:      ''',
     });
   
  -  testPhases('processes class attributes with mustaches', phases, {
  +  testPhasesAsync('processes class attributes with mustaches', phases, {
       'a|foo.css': r'''
         .what_1 {}
         .what-2 {}
  
positive.code:       body{font-family:sans-serif}
        div{font-family:sans-serif}
      ''';
    testPhases('deals with synthetic html and body', phases, {
      'a|html.css': htmlBodyDiv,
      'a|html.html': r'<html></html>',
      'a|body.css': htmlBodyDiv,
  
negative.code:       present-element {}
      '''
    });
    testPhasesAsync('prunes css based on angular2 annotations in .dart companion', phases, {
      'a|foo.css': r'''
        absent-element {}
        present-element {}
  