anchor.diff:      final CustomPaint customPaint = tester.widget(find.byType(CustomPaint));
       final MockCanvas canvas = new MockCanvas();
       customPaint.painter.paint(canvas, const Size(48.0, 48.0));
  -    verify(canvas.drawPath(any, paintColorMatcher(0xFF0000FF)));
  +    verify(canvas.drawPath(typed(any), typed(argThat(hasColor(0xFF0000FF)))));
     });
   
     testWidgets('IconTheme size', (WidgetTester tester) async {
  
positive.code:     final CustomPaint customPaint = tester.widget(find.byType(CustomPaint));
      final MockCanvas canvas = new MockCanvas();
      customPaint.painter.paint(canvas, const Size(48.0, 48.0));
      verifyNever(canvas.rotate(any));
      verifyNever(canvas.translate(any, any));
    });
  
    testWidgets('Inherited text direction overridden', (WidgetTester tester) async {
  
negative.code:   });
  }
  
  PaintColorMatcher hasColor(int color) {
    return new PaintColorMatcher(color);
  }
  
  