Test data necessary for python samples added to test package.

Test launch script updated to run new tests as well.

modules/python/test/nonfree_tests/nonfree_surf.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+# Python 2/3 compatibility
+from __future__ import print_function
+
+import numpy as np
+import cv2
+import cv2.cv as cv
+
+from test import OpenCVTests
+
+class NonFreeFunctionTests(OpenCVTests):
+
+    def test_ExtractSURF(self):
+        img = self.get_sample("samples/c/lena.jpg", 0)
+        w,h = cv.GetSize(img)
+        for hessthresh in [ 300,400,500]:
+            for dsize in [0,1]:
+                for layers in [1,3,10]:
+                    kp,desc = cv.ExtractSURF(img, None, cv.CreateMemStorage(), (dsize, hessthresh, 3, layers))
+                    self.assertTrue(len(kp) == len(desc))
+                    for d in desc:
+                        self.assertTrue(len(d) == {0:64, 1:128}[dsize])
+                    for pt,laplacian,size,dir,hessian in kp:
+                        self.assertTrue((0 <= pt[0]) and (pt[0] <= w))
+                        self.assertTrue((0 <= pt[1]) and (pt[1] <= h))
+                        self.assertTrue(laplacian in [-1, 0, 1])
+                        self.assertTrue((0 <= dir) and (dir <= 360))
+                        self.assertTrue(hessian >= hessthresh)