diff --git a/modules/core/test/test_misc.cpp b/modules/core/test/test_misc.cpp new file mode 100644 index 0000000000..43daf67189 --- /dev/null +++ b/modules/core/test/test_misc.cpp @@ -0,0 +1,25 @@ +#include "test_precomp.hpp" + +using namespace cv; +using namespace std; + +TEST(Core_Drawing, _914) +{ + const int rows = 256; + const int cols = 256; + + Mat img(rows, cols, CV_8UC1, Scalar(255)); + + line(img, Point(0, 10), Point(255, 10), Scalar(0), 2, 4); + line(img, Point(-5, 20), Point(260, 20), Scalar(0), 2, 4); + line(img, Point(10, 0), Point(10, 255), Scalar(0), 2, 4); + + double x0 = 0.0/pow(2.0, -2.0); + double x1 = 255.0/pow(2.0, -2.0); + double y = 30.5/pow(2.0, -2.0); + + line(img, Point(int(x0), int(y)), Point(int(x1), int(y)), Scalar(0), 2, 4, 2); + + int pixelsDrawn = rows*cols - countNonZero(img); + ASSERT_EQ( (3*rows + cols)*3 - 3*9, pixelsDrawn); +} \ No newline at end of file