anchor.diff:      });
     }, overrides: <Type, Generator>{
       BuildSystem: () => MockBuildSystem(),
  +    FileSystem: () => fileSystem,
  +    ProcessManager: () => FakeProcessManager.any(),
     });
   
     group('Simulator screenshot', () {
  
positive.code:       expect(IOSSimulator('x', name: 'Apple TV').isSupported(), false);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('Apple Watch is unsupported', () {
        expect(IOSSimulator('x', name: 'Apple Watch').isSupported(), false);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPad 2 is supported', () {
        expect(IOSSimulator('x', name: 'iPad 2').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPad Retina is supported', () {
        expect(IOSSimulator('x', name: 'iPad Retina').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPhone 5 is supported', () {
        expect(IOSSimulator('x', name: 'iPhone 5').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPhone 5s is supported', () {
        expect(IOSSimulator('x', name: 'iPhone 5s').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPhone SE is supported', () {
        expect(IOSSimulator('x', name: 'iPhone SE').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPhone 7 Plus is supported', () {
        expect(IOSSimulator('x', name: 'iPhone 7 Plus').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
  
      testUsingContext('iPhone X is supported', () {
        expect(IOSSimulator('x', name: 'iPhone X').isSupported(), true);
      }, overrides: <Type, Generator>{
        Platform: () => osx,
      });
    });
  
  
negative.code:     },
      overrides: <Type, Generator>{
        ProcessManager: () => mockProcessManager,
        FileSystem: () => fileSystem,
      });
  
      testUsingContext('uses /usr/bin/log on iOS 11 and above', () async {
  