BUG: Failing type return on masked array on LHS

biggus/tests/test_integration.py

@@ -49,6 +49,16 @@ def test_mean_of_mean(self):
         result = mean2.ndarray()
         np.testing.assert_array_equal(result, expected)
 
+    def test_masked_array_numpy_first_biggus_second(self):
+        # Ensure that an operation where the biggus array is second (i.e.
+        # calling the special method of the numpy array not the biggus array,
+        # returns the expected type).
+        arr = np.ma.array([1, 2, 3], mask=[False, True, False])
+        barr = biggus.NumpyArrayAdapter(arr)
+        target_type = type(np.array([[ 1.]]) * arr)
+        resulting_type = type(np.array([[ 1.]]) * barr)
+        self.assertIs(resulting_type, target_type)
+
 
 if __name__ == '__main__':
     unittest.main()