Catch warning

Author: ivirshup

pandas/tests/frame/indexing/test_setitem.py

@@ -689,7 +689,8 @@ def test_2d_array(self):
  a = np.ones((10, 1))
  df = DataFrame(index=np.arange(10))
  df["np-array"] = a
- df["np-matrix"] = np.matrix(a)
+ with tm.assert_produces_warning(PendingDeprecationWarning):
+ df["np-matrix"] = np.matrix(a)
 
  tm.assert_frame_equal(df, expected)