Disable warning for pending deprecation of matrix throughout Orange

Author: janezd

Orange/__init__.py

@@ -46,3 +46,10 @@
     pass
 finally:
     del ctypes
+
+
+# scipy.sparse uses matrix
+# we can't do anything about it, so we silence it until scipy is fixed
+import warnings
+warnings.filterwarnings(
+    "ignore", ".*the matrix subclass.*", PendingDeprecationWarning)

Orange/tests/test_orange.py

@@ -1,4 +1,8 @@
 import unittest
+import warnings
+import os
+
+import scipy.sparse as sp
 
 
 class TestOrange(unittest.TestCase):
@@ -10,3 +14,16 @@ def test_orange_has_modules(self):
         for _, name, __ in pkgutil.iter_modules(Orange.__path__):
             if name not in unimported:
                 self.assertIn(name, Orange.__dict__)
+
+    @unittest.skipUnless(
+        os.environ.get("TRAVIS"),
+        "Travis has latest versions; Appveyor doesn't, and users don't care")
+    def test_remove_matrix_deprecation_filter(self):
+        # Override filter in Orange.__init__
+        warnings.filterwarnings(
+            "once", ".*the matrix subclass.*", PendingDeprecationWarning)
+        with self.assertWarns(
+                PendingDeprecationWarning,
+                msg="Remove filter for PendingDeprecationWarning of np.matrix "
+                    "from Orange.__init__"):
+            sp.lil_matrix([1, 2, 3])