updated the new arithmetic tests

modules/core/test/test_arithm.cpp

 #include "precomp.hpp"
+#include <iostream>
 
 using namespace cv;
+using namespace std;
+
+const int ARITHM_NTESTS = 1000;
+const int ARITHM_RNG_SEED = -1;
+const int ARITHM_MAX_NDIMS = 4;
+const int ARITHM_MAX_SIZE_LOG = 10;
+const int ARITHM_MAX_CHANNELS = 4;
+
+static void getArithmValueRange(int depth, double& minval, double& maxval)
+{
+    minval = depth < CV_32S ? cvtest::getMinVal(depth) : depth == CV_32S ? -1000000 : -1000.;
+    maxval = depth < CV_32S ? cvtest::getMinVal(depth) : depth == CV_32S ? 1000000 : 1000.;
+}
+
+static double getArithmMaxErr(int depth)
+{
+    return depth < CV_32F ? 0 : 4;
+}
 
 TEST(ArithmTest, add)
 {
-    typedef uchar _Tp;
-    
-    Mat A(30,30,DataType<_Tp>::type), B(A.size(), A.type()), C0, C;
-    RNG rng(-1);
-    rng.fill(A, RNG::UNIFORM, Scalar::all(0), Scalar::all(256));
-    rng.fill(B, RNG::UNIFORM, Scalar::all(0), Scalar::all(256));
-    C0.create(A.size(), A.type());
-    int i, j, cols = A.cols*A.channels();
-    for(i = 0; i < A.rows; i++)
+    int testIdx = 0;
+    RNG rng(ARITHM_RNG_SEED);
+    for( testIdx = 0; testIdx < ARITHM_NTESTS; testIdx++ )
     {
-        const _Tp* aptr = A.ptr<_Tp>(i);
-        const _Tp* bptr = B.ptr<_Tp>(i);
-        _Tp* cptr = C0.ptr<_Tp>(i);
-        for(j = 0; j < cols; j++)
-            cptr[j] = saturate_cast<_Tp>(aptr[j] + bptr[j]);
+        double minval, maxval;
+        vector<int> size;
+        cvtest::randomSize(rng, 2, ARITHM_MAX_NDIMS, ARITHM_MAX_SIZE_LOG, size);
+        int type = cvtest::randomType(rng, cvtest::TYPE_MASK_ALL, 1, ARITHM_MAX_CHANNELS);
+        int depth = CV_MAT_DEPTH(type);
+        bool haveMask = rng.uniform(0, 4) == 0;
+        
+        getArithmValueRange(depth, minval, maxval);
+        Mat src1 = cvtest::randomMat(rng, size, type, minval, maxval, true);
+        Mat src2 = cvtest::randomMat(rng, size, type, minval, maxval, true);
+        Mat dst0 = cvtest::randomMat(rng, size, type, minval, maxval, false);
+        Mat dst = cvtest::randomMat(rng, size, type, minval, maxval, true);
+        Mat mask;
+        if( haveMask )
+        {
+            mask = cvtest::randomMat(rng, size, CV_8U, 0, 2, true);
+            cvtest::copy(dst0, dst);
+            cvtest::add(src1, 1, src2, 1, Scalar::all(0), dst0, dst.type());
+            cvtest::copy(dst, dst0, mask, true);
+            add(src1, src2, dst, mask);
+        }
+        else
+        {
+            cvtest::add(src1, 1, src2, 1, Scalar::all(0), dst0, dst.type());
+            add(src1, src2, dst);
+        }
+        
+        double maxErr = getArithmMaxErr(depth);
+        vector<int> pos;
+        ASSERT_TRUE(cvtest::cmpEps(dst0, dst, maxErr, &pos)) << "position: " << Mat(pos);
     }
-    add(A, B, C);
-    EXPECT_EQ(norm(C, C0, NORM_INF), 0);
 }

modules/gtest/include/opencv2/gtest/gtestcv.hpp

@@ -27,29 +27,38 @@ enum
     TYPE_MASK_ALL = (TYPE_MASK_64F<<1)-1,
     TYPE_MASK_ALL_BUT_8S = TYPE_MASK_ALL & ~TYPE_MASK_8S
 };
+
+CV_EXPORTS double getMinVal(int depth);
+CV_EXPORTS double getMaxVal(int depth);
     
 CV_EXPORTS Size randomSize(RNG& rng, double maxSizeLog);
 CV_EXPORTS void randomSize(RNG& rng, int minDims, int maxDims, double maxSizeLog, vector<int>& sz);    
 CV_EXPORTS int randomType(RNG& rng, int typeMask, int minChannels, int maxChannels);
-CV_EXPORTS Mat randomMat(RNG& rng, Size size, int type, bool useRoi);
-CV_EXPORTS Mat randomMat(RNG& rng, const vector<int>& size, int type, bool useRoi);
+CV_EXPORTS Mat randomMat(RNG& rng, Size size, int type, double minVal, double maxVal, bool useRoi);
+CV_EXPORTS Mat randomMat(RNG& rng, const vector<int>& size, int type, double minVal, double maxVal, bool useRoi);
 CV_EXPORTS void add(const Mat& a, double alpha, const Mat& b, double beta,
-                      Scalar gamma, Mat& c, int ctype, bool calcAbs);
-CV_EXPORTS void convert(const Mat& src, Mat& dst, int dtype, double alpha, double beta);
-CV_EXPORTS void copy(const Mat& src, Mat& dst, const Mat& mask=Mat());
+                      Scalar gamma, Mat& c, int ctype, bool calcAbs=false);
+CV_EXPORTS void convert(const Mat& src, Mat& dst, int dtype, double alpha=1, double beta=0);
+CV_EXPORTS void copy(const Mat& src, Mat& dst, const Mat& mask=Mat(), bool invertMask=false);
 CV_EXPORTS void set(Mat& dst, const Scalar& gamma, const Mat& mask=Mat());
-CV_EXPORTS void minMaxFilter(const Mat& a, Mat& maxresult, const Mat& minresult, const Mat& kernel, Point anchor);
-CV_EXPORTS void filter2D(const Mat& src, Mat& dst, int ddepth, const Mat& kernel, Point anchor, double delta, int borderType);
-CV_EXPORTS void copyMakeBorder(const Mat& src, Mat& dst, int top, int bottom, int left, int right, int borderType, Scalar borderValue);
+CV_EXPORTS void erode(const Mat& src, Mat& dst, const Mat& _kernel, Point anchor=Point(-1,-1),
+                      int borderType=IPL_BORDER_CONSTANT, const Scalar& borderValue=Scalar());
+CV_EXPORTS void dilate(const Mat& src, Mat& dst, const Mat& _kernel, Point anchor=Point(-1,-1),
+                       int borderType=IPL_BORDER_CONSTANT, const Scalar& borderValue=Scalar());
+CV_EXPORTS void filter2D(const Mat& src, Mat& dst, int ddepth, const Mat& kernel,
+                         Point anchor, double delta, int borderType,
+                         const Scalar& borderValue=Scalar());
+CV_EXPORTS void copyMakeBorder(const Mat& src, Mat& dst, int top, int bottom, int left, int right,
+                               int borderType, const Scalar& borderValue=Scalar());
 CV_EXPORTS void minMaxLoc(const Mat& src, double* maxval, double* minval,
                           vector<int>* maxloc, vector<int>* minloc, const Mat& mask=Mat());
 CV_EXPORTS double norm(const Mat& src, int normType, const Mat& mask=Mat());
 CV_EXPORTS double norm(const Mat& src1, const Mat& src2, int normType, const Mat& mask=Mat());
-CV_EXPORTS bool cmpEps(const Mat& src1, const Mat& src2, double maxDiff, vector<int>* loc);
+CV_EXPORTS bool cmpEps(const Mat& src1, const Mat& src2, int maxDiff, vector<int>* loc);
 CV_EXPORTS void logicOp(const Mat& src1, const Mat& src2, Mat& dst, char c);
 CV_EXPORTS void logicOp(const Mat& src, const Scalar& s, Mat& dst, char c);
 CV_EXPORTS void compare(const Mat& src1, const Mat& src2, Mat& dst, int cmpop);
-CV_EXPORTS void compare(const Mat& src, const Scalar& s, Mat& dst, int cmpop);    
+CV_EXPORTS void compare(const Mat& src, double s, Mat& dst, int cmpop);    
 CV_EXPORTS void gemm(const Mat& src1, const Mat& src2, double alpha,
                      const Mat& src3, double beta, Mat& dst, int flags);
 CV_EXPORTS void crosscorr(const Mat& src1, const Mat& src2, Mat& dst, int dtype);