Merge pull request #22346 from fengyuentau:mat1d_part1

Changes separated from Mat 1D support in core #18594 (#22346)

modules/core/test/test_mat.cpp

@@ -2354,6 +2354,96 @@ TEST(Mat, regression_18473)
     EXPECT_EQ((int)5, (int)m.at<short>(19, 49, 99));
 }
 
+// FITIT: remove DISABLE_ when 1D Mat is supported
+TEST(Mat1D, DISABLED_basic)
+{
+    std::vector<int> sizes { 100 };
+    Mat m1(sizes, CV_8UC1, Scalar::all(5));
+    m1.at<uchar>(50) = 10;
+    EXPECT_FALSE(m1.empty());
+    ASSERT_EQ(1, m1.dims);
+    ASSERT_EQ(1, m1.size.dims());  // hack map on .rows
+    EXPECT_EQ(Size(100, 1), m1.size());
+
+    {
+        SCOPED_TRACE("clone");
+        Mat m = m1.clone();
+        EXPECT_EQ(1, m.dims);
+        EXPECT_EQ(Size(100, 1), m.size());
+    }
+
+    {
+        SCOPED_TRACE("colRange()");
+        Mat m = m1.colRange(Range(10, 30));
+        EXPECT_EQ(1, m.dims);
+        EXPECT_EQ(Size(20, 1), m.size());
+    }
+
+    {
+        SCOPED_TRACE("reshape(1, 1)");
+        Mat m = m1.reshape(1, 1);
+        EXPECT_EQ(1, m.dims);
+        EXPECT_EQ(Size(100, 1), m.size());
+    }
+
+    {
+        SCOPED_TRACE("reshape(1, 100)");
+        Mat m = m1.reshape(1, 100);
+        EXPECT_EQ(2, m.dims);
+        EXPECT_EQ(Size(1, 100), m.size());
+    }
+
+    {
+        SCOPED_TRACE("reshape(1, {1, 100})");
+        Mat m = m1.reshape(1, {1, 100});
+        EXPECT_EQ(2, m.dims);
+        EXPECT_EQ(Size(100, 1), m.size());
+    }
+
+    {
+        SCOPED_TRACE("copyTo(std::vector<uchar>)");
+        std::vector<uchar> dst;
+        m1.copyTo(dst);
+        EXPECT_EQ(100u, dst.size());
+    }
+
+    {
+        SCOPED_TRACE("copyTo(row2D)");
+        Mat m(5, 100, CV_8UC1, Scalar::all(0));
+        const Mat row2D = m.row(2);
+        EXPECT_NO_THROW(m1.copyTo(row2D));
+    }
+
+    {
+        SCOPED_TRACE("convertTo(row2D)");
+        Mat m(5, 100, CV_32FC1, Scalar::all(0));
+        const Mat row2D = m.row(2);
+        EXPECT_NO_THROW(m1.convertTo(row2D, CV_32FC1));
+    }
+
+    {
+        SCOPED_TRACE("CvMat");
+        CvMat c_mat = cvMat(m1);
+        EXPECT_EQ(100, c_mat.cols);
+        EXPECT_EQ(1, c_mat.rows);
+    }
+
+    {
+        SCOPED_TRACE("CvMatND");
+        CvMatND c_mat = cvMatND(m1);
+        EXPECT_EQ(2, c_mat.dims);
+        EXPECT_EQ(100, c_mat.dim[0].size);
+        EXPECT_EQ(1, c_mat.dim[1].size);
+    }
+
+    {
+        SCOPED_TRACE("minMaxLoc");
+        Point pt;
+        minMaxLoc(m1, 0, 0, 0, &pt);
+        EXPECT_EQ(50, pt.x);
+        EXPECT_EQ(0, pt.y);
+    }
+}
 
 TEST(Mat, ptrVecni_20044)
 {