diff --git a/pandas/io/tests/parser/dtypes.py b/pandas/io/tests/parser/dtypes.py index 18c37b31f6480..b9ab79c3b9d54 100644 --- a/pandas/io/tests/parser/dtypes.py +++ b/pandas/io/tests/parser/dtypes.py @@ -241,6 +241,9 @@ def test_empty_dtype(self): result = self.read_csv(StringIO(data), header=0, dtype='category') tm.assert_frame_equal(result, expected) + result = self.read_csv(StringIO(data), header=0, + dtype={'a': 'category', 'b': 'category'}) + tm.assert_frame_equal(result, expected) expected = pd.DataFrame(columns=['a', 'b'], dtype='datetime64[ns]') result = self.read_csv(StringIO(data), header=0,