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core(test): regression test for 12121

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This commit is contained in:
Alexander Alekhin 2018-08-01 19:12:48 +03:00
parent 47e3e89e30
commit f2e1710dd5
1 changed files with 67 additions and 0 deletions
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67
modules/core/test/test_arithm.cpp
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@ -2117,4 +2117,71 @@ TEST(Core_Norm, IPP_regression_NORM_L1_16UC3_small)
EXPECT_EQ((double)20*cn, cv::norm(a, b, NORM_L1, mask));
}
TEST(Core_ConvertTo, regression_12121)
{
{
Mat src(4, 64, CV_32SC1, Scalar(-1));
Mat dst;
src.convertTo(dst, CV_8U);
EXPECT_EQ(0, dst.at<uchar>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN));
Mat dst;
src.convertTo(dst, CV_8U);
EXPECT_EQ(0, dst.at<uchar>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN + 32767));
Mat dst;
src.convertTo(dst, CV_8U);
EXPECT_EQ(0, dst.at<uchar>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN + 32768));
Mat dst;
src.convertTo(dst, CV_8U);
EXPECT_EQ(0, dst.at<uchar>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(32768));
Mat dst;
src.convertTo(dst, CV_8U);
EXPECT_EQ(255, dst.at<uchar>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN));
Mat dst;
src.convertTo(dst, CV_16U);
EXPECT_EQ(0, dst.at<ushort>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN + 32767));
Mat dst;
src.convertTo(dst, CV_16U);
EXPECT_EQ(0, dst.at<ushort>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(INT_MIN + 32768));
Mat dst;
src.convertTo(dst, CV_16U);
EXPECT_EQ(0, dst.at<ushort>(0, 0)) << "src=" << src.at<int>(0, 0);
}
{
Mat src(4, 64, CV_32SC1, Scalar(65536));
Mat dst;
src.convertTo(dst, CV_16U);
EXPECT_EQ(65535, dst.at<ushort>(0, 0)) << "src=" << src.at<int>(0, 0);
}
}
}} // namespace