anchor.diff:          boolEvalExpression,
           boolLibrary,
         );
  -      */
   
         // Enable a String extension on the test device.
         final stringExtensionDescription = extensions.togglePlatformMode;
  
positive.code:       await _verifyExtensionStateInServiceManager(extensionName, true, true);
  
        await env.tearDownEnvironment();
        // TODO(kenz): Unskip this once
        // https://github.com/flutter/devtools/issues/1351 is fixed.
      }, skip: true);
  
      test('toggle String service extension', () async {
        await env.setupEnvironment();
  
negative.code:     }
  
      test('all extension types', () async {
        // Enable a boolean extension on the test device.
        final boolExtensionDescription = extensions.debugPaint;
        final boolArgs = {'enabled': true};
  