anchor.diff:        ..._getMatchingArguments(testName, screenshotSize, isCanvaskitTest),
       ];
   
  -    final ProcessResult result = await process.run(imgtestCommand);
  +    final ProcessResult result = await _runCommand(imgtestCommand);
   
       if (result.exitCode != 0) {
         // We do not want to throw for non-zero exit codes here, as an intentional
  
positive.code:       ..._getMatchingArguments(testName, screenshotSize, isCanvaskitTest),
      ];
  
      final ProcessResult result = await process.run(imgtestCommand);
  
      final String resultStdout = result.stdout.toString();
      if (result.exitCode != 0 &&
  
negative.code:       '--luci',
      ];
  
      final ProcessResult result = await _runCommand(authCommand);
  
      if (result.exitCode != 0) {
        final StringBuffer buf = StringBuffer()
  