Restore SURF test.

OpenCV2_Cookbook/src/test/java/opencv2_cookbook/SURFDetectorTest.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2011-2014 Jarek Sacha. All Rights Reserved.
+ *
+ * Author's e-mail: jpsacha at gmail.com
+ */
+
+package opencv2_cookbook;
+
+import org.bytedeco.javacpp.opencv_core;
+import org.junit.Test;
+
+import static org.bytedeco.javacpp.opencv_features2d.KeyPoint;
+import static org.bytedeco.javacpp.opencv_highgui.imread;
+import static org.bytedeco.javacpp.opencv_nonfree.SURF;
+import static org.junit.Assert.assertEquals;
+
+public class SURFDetectorTest {
+
+    @Test
+    public void detect() {
+        final opencv_core.Mat image = imread("data/church01.jpg");
+        final KeyPoint keyPoints = new KeyPoint();
+        final SURF surf = new SURF(2500, 4, 2, true, false);
+        // JVM crashes when JavaCV native binaries and OpenCV binaries are build with different versions of VisualStudio
+        // For instance, JavaCV is build with VC10 and OpenCV with VC11.
+
+        surf.detect(image, keyPoints);
+        assertEquals(320, keyPoints.capacity());
+    }
+}