Added tests for Image2D

modules/core/src/ocl.cpp

@@ -4624,6 +4624,9 @@ struct Image2D::Impl
 
     static bool isFormatSupported(cl_image_format format)
     {
+        if (!haveOpenCL())
+            CV_Error(Error::OpenCLApiCallError, "OpenCL runtime not found!");
+
         cl_context context = (cl_context)Context::getDefault().ptr();
         // Figure out how many formats are supported by this context.
         cl_uint numFormats = 0;

modules/core/test/ocl/test_image2d.cpp

@@ -0,0 +1,43 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+// Copyright (C) 2014, Itseez, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+
+#include "../test_precomp.hpp"
+#include "opencv2/ts/ocl_test.hpp"
+
+#ifdef HAVE_OPENCL
+
+namespace cvtest {
+namespace ocl {
+
+PARAM_TEST_CASE(Image2DBasicTest, int, int)
+{
+    int depth, ch;
+
+
+};
+
+TEST(Image2D, turnOffOpenCL)
+{
+    if (cv::ocl::haveOpenCL())
+    {
+        // save the current state
+        bool useOCL = cv::ocl::useOpenCL();
+
+        cv::ocl::setUseOpenCL(true);
+        UMat um(128, 128, CV_8UC1);
+
+        cv::ocl::setUseOpenCL(false);
+        cv::ocl::Image2D image(um);
+    
+        // reset state to the previous one
+        cv::ocl::setUseOpenCL(useOCL);
+    }
+}
+
+} } // namespace cvtest::ocl
+
+#endif // HAVE_OPENCL