message: core(test): regression test for 9507
diff: @@ -1399,13 +1399,22 @@ TEST(Core_Matx, fromMat_)
  }
  #ifdef CV_CXX11
  +
  TEST(Core_Matx, from_initializer_list)
  {
  Mat_<double> a = (Mat_<double>(2,2) << 10, 11, 12, 13);
  Matx22d b = {10, 11, 12, 13};
  ASSERT_EQ( cvtest::norm(a, b, NORM_INF), 0.);
  }
  -#endif
  +
  +TEST(Core_Mat, regression_9507)
  +{
  + cv::Mat m = Mat::zeros(5, 5, CV_8UC3);
  + cv::Mat m2{m};
  + EXPECT_EQ(25u, m2.total());
  +}
  +
  +#endif // CXX11
  TEST(Core_InputArray, empty)
  {
  