From 8b78493d4f9eca2d8a90abdab7e905e9556eba57 Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <solipsis@pitrou.net>
Date: Sat, 23 Nov 2013 14:52:39 +0100
Subject: Issue #19716: add a test that Path.touch() doesn't change a file's
 contents. Patch by Kushal Das.

---
 Lib/test/test_pathlib.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py
index 6663ffa..83c56d0 100755
--- a/Lib/test/test_pathlib.py
+++ b/Lib/test/test_pathlib.py
@@ -1403,6 +1403,13 @@ class _BasePathTest(object):
         self.assertTrue(p.exists())
         self.assertRaises(OSError, p.touch, exist_ok=False)
 
+    def test_touch_nochange(self):
+        P = self.cls(BASE)
+        p = P / 'fileA'
+        p.touch()
+        with p.open('rb') as f:
+            self.assertEqual(f.read().strip(), b"this is file A")
+
     def test_mkdir(self):
         P = self.cls(BASE)
         p = P / 'newdirA'
-- 
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