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#include "test_precomp.hpp"
#include "test_chessboardgenerator.hpp"
#include "opencv2/calib3d/calib3d_c.h"

#include <limits>

using namespace std;
using namespace cv;

class CV_ChessboardDetectorBadArgTest : public cvtest::BadArgTest
{
public:
    CV_ChessboardDetectorBadArgTest();
protected:
    void run(int);
    bool checkByGenerator();

    bool cpp;

    /* cpp interface */
    Mat img;
    Size pattern_size;
    int flags;
    vector<Point2f> corners;

    /* c interface */
    CvMat arr;
    CvPoint2D32f* out_corners;
    int* out_corner_count;


    /* c interface draw  corners */
    bool drawCorners;
    CvMat drawCorImg;
    bool was_found;

    void run_func()
    {
        if (cpp)
            findChessboardCorners(img, pattern_size, corners, flags);
        else
            if (!drawCorners)
                cvFindChessboardCorners( &arr, pattern_size, out_corners, out_corner_count, flags );
            else
                cvDrawChessboardCorners( &drawCorImg, pattern_size,
                    (CvPoint2D32f*)(corners.empty() ? 0 : &corners[0]),
                    (int)corners.size(), was_found);
    }
};

CV_ChessboardDetectorBadArgTest::CV_ChessboardDetectorBadArgTest()
{
    cpp = false;
    flags = 0;
    out_corners = NULL;
    out_corner_count = NULL;
    drawCorners = was_found = false;
}

/* ///////////////////// chess_corner_test ///////////////////////// */
void CV_ChessboardDetectorBadArgTest::run( int /*start_from */)
{
    Mat bg(800, 600, CV_8U, Scalar(0));
    Mat_<float> camMat(3, 3);
    camMat << 300.f, 0.f, bg.cols/2.f, 0, 300.f, bg.rows/2.f, 0.f, 0.f, 1.f;
    Mat_<float> distCoeffs(1, 5);
    distCoeffs << 1.2f, 0.2f, 0.f, 0.f, 0.f;

    ChessBoardGenerator cbg(Size(8,6));
    vector<Point2f> exp_corn;
    Mat cb = cbg(bg, camMat, distCoeffs, exp_corn);

    /* /*//*/ */
    int errors = 0;
    flags = CV_CALIB_CB_ADAPTIVE_THRESH | CV_CALIB_CB_NORMALIZE_IMAGE;
    cpp = true;

    img = cb.clone();
    pattern_size = Size(2,2);
    errors += run_test_case( CV_StsOutOfRange, "Invlid pattern size" );

    pattern_size = cbg.cornersSize();
    cb.convertTo(img, CV_32F);
    errors += run_test_case( CV_StsUnsupportedFormat, "Not 8-bit image" );

    cv::merge(vector<Mat>(2, cb), img);
    errors += run_test_case( CV_StsUnsupportedFormat, "2 channel image" );

    cpp = false;
    drawCorners = false;

    img = cb.clone();
    arr = img;
    out_corner_count = 0;
    out_corners = 0;
    errors += run_test_case( CV_StsNullPtr, "Null pointer to corners" );

    drawCorners = true;
    Mat cvdrawCornImg(img.size(), CV_8UC2);
    drawCorImg = cvdrawCornImg;
    was_found = true;
    errors += run_test_case( CV_StsUnsupportedFormat, "2 channel image" );


    if (errors)
        ts->set_failed_test_info(cvtest::TS::FAIL_MISMATCH);
    else
        ts->set_failed_test_info(cvtest::TS::OK);
}

TEST(Calib3d_ChessboardDetector, badarg) { CV_ChessboardDetectorBadArgTest test; test.safe_run(); }

/* End of file. */
