From e4e0432a325104bb8d2e91e342117e23f5cbd690 Mon Sep 17 00:00:00 2001
From: Dries Schaumont <5946712+DriesSchaumont@users.noreply.github.com>
Date: Sun, 4 Sep 2022 21:07:55 +0200
Subject: [PATCH] TST: add tests for parser functions being pickle-able.

---
 pandas/tests/io/test_common.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/pandas/tests/io/test_common.py b/pandas/tests/io/test_common.py
index e9e99f6dd0ad7..3f95dd616a09c 100644
--- a/pandas/tests/io/test_common.py
+++ b/pandas/tests/io/test_common.py
@@ -12,6 +12,7 @@
 import mmap
 import os
 from pathlib import Path
+import pickle
 import tempfile
 
 import pytest
@@ -604,3 +605,23 @@ def close(self):
         with BytesIO() as buffer:
             with icom.get_handle(buffer, "rb") as handles:
                 handles.created_handles.append(TestError())
+
+
+@pytest.mark.parametrize(
+    "reader",
+    [
+        pd.read_csv,
+        pd.read_fwf,
+        pd.read_excel,
+        pd.read_feather,
+        pd.read_hdf,
+        pd.read_stata,
+        pd.read_sas,
+        pd.read_json,
+        pd.read_pickle,
+    ],
+)
+def test_pickle_reader(reader):
+    # GH 22265
+    with BytesIO() as buffer:
+        pickle.dump(reader, buffer)