java tests: added a chessboard image

modules/java/android_test/src/org/opencv/test/OpenCVTestCase.java

@@ -49,6 +49,7 @@ public class OpenCVTestCase extends TestCase {
 	protected static Mat rgba128;
     
 	protected static Mat rgbLena;
+	protected static Mat grayChess;
 	
 	protected static Mat v1;
 	protected static Mat v2;
@@ -92,6 +93,7 @@ public class OpenCVTestCase extends TestCase {
         rgba128 = new Mat(matSize, matSize, CvType.CV_8UC4); rgba128.setTo(Scalar.all(128));
         
         rgbLena = highgui.imread(OpenCVTestRunner.LENA_PATH);
+        grayChess = highgui.imread(OpenCVTestRunner.CHESS_PATH);
         
 		v1 = new Mat(1, 3, CvType.CV_32F); v1.put(0, 0, 1.0, 3.0, 2.0);
 		v2 = new Mat(1, 3, CvType.CV_32F); v2.put(0, 0, 2.0, 1.0, 3.0);

modules/java/android_test/src/org/opencv/test/OpenCVTestRunner.java

@@ -20,9 +20,10 @@ import android.util.Log;
 public class OpenCVTestRunner extends InstrumentationTestRunner {
 	
     public static String LENA_PATH = "/data/data/org.opencv.test/files/lena.jpg";
+    public static String CHESS_PATH = "/data/data/org.opencv.test/files/chessboard.jpg";
+	private static String TAG = "opencv_test_java";
 	
 	private AndroidTestRunner androidTestRunner;
-	private static String TAG = "opencv_test_java";
 	
 	static public void Log(String message) {
 		Log.e(TAG, message);
@@ -30,7 +31,8 @@ public class OpenCVTestRunner extends InstrumentationTestRunner {
     	
     @Override  
     public void onStart() {
-    	ExportLena();
+    	ExportResourceImage("lena.jpg", R.drawable.lena);
+    	ExportResourceImage("chessboard.jpg", R.drawable.chessboard);
 		
         //List<TestCase> testCases = androidTestRunner.getTestCases();
         //Collections.shuffle(testCases); //shuffle the tests order
@@ -44,16 +46,16 @@ public class OpenCVTestRunner extends InstrumentationTestRunner {
          return androidTestRunner;  
     }
     
-	private void ExportLena() {
+	private void ExportResourceImage(String image, int rId) {
 		try {
-			Bitmap mBitmap = BitmapFactory.decodeResource(this.getContext().getResources(), R.drawable.lena);
-			FileOutputStream fos = this.getContext().openFileOutput("lena.jpg", Context.MODE_WORLD_READABLE);
+			Bitmap mBitmap = BitmapFactory.decodeResource(this.getContext().getResources(), rId);
+			FileOutputStream fos = this.getContext().openFileOutput(image, Context.MODE_WORLD_READABLE);
 			mBitmap.compress(CompressFormat.JPEG, 100, fos);
 			fos.flush();
 			fos.close();
 		}
 		catch (Exception e) {
-		   	Log("Tried to write lena.jpg, but: " + e.toString());
+		   	Log("Tried to write " + image + ", but: " + e.toString());
 		}
 	}
 }

modules/java/android_test/src/org/opencv/test/calib3d/calib3dTest.java

 package org.opencv.test.calib3d;
 
+import org.opencv.Size;
+import org.opencv.calib3d;
 import org.opencv.test.OpenCVTestCase;
+import org.opencv.test.OpenCVTestRunner;
 
 public class calib3dTest extends OpenCVTestCase {
 
@@ -93,11 +96,13 @@ public class calib3dTest extends OpenCVTestCase {
 	}
 
 	public void testFindChessboardCornersMatSizeMat() {
-		fail("Not yet implemented");
+		Size patternSize = new Size(9, 6);
+		calib3d.findChessboardCorners(grayChess, patternSize, dst);
+		assertTrue(!dst.empty());
 	}
 
 	public void testFindChessboardCornersMatSizeMatInt() {
-		fail("Not yet implemented");
+		fail("Not yet implemented");//CALIB_CB_ADAPTIVE_THRESH + CALIB_CB_NORMALIZE_IMAGE + CALIB_CB_FAST_CHECK
 	}
 
 	public void testFindFundamentalMatMatMat() {