Merge pull request #2819 from LaurentBerger:pyb_qd

* solved issue 2813

* review

modules/stereo/misc/python/test/test_stereo.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+import cv2 as cv
+
+from tests_common import NewOpenCVTests
+
+class quasi_dense_stereo_test(NewOpenCVTests):
+
+    def test_simple(self):
+
+        stereo = cv.stereo.QuasiDenseStereo_create((100, 100))
+        self.assertIsNotNone(stereo)
+
+        dense_matches = cv.stereo_MatchQuasiDense()
+        self.assertIsNotNone(dense_matches)
+
+        parameters = cv.stereo_PropagationParameters()
+        self.assertIsNotNone(parameters)
+
+if __name__ == '__main__':
+    NewOpenCVTests.bootstrap()