bpo-44949: Fix test_readline auto history tests (#27813)

2 files changed, 8 insertions, 2 deletions

diff --git a/Lib/test/test_readline.py b/Lib/test/test_readline.py
index f3e404da6f..e8fb8d2f9c 100644
--- a/Lib/test/test_readline.py
+++ b/Lib/test/test_readline.py
@@ -156,11 +156,15 @@ print("History length:", readline.get_current_history_length())
 
     def test_auto_history_enabled(self):
         output = run_pty(self.auto_history_script.format(True))
-        self.assertIn(b"History length: 1\r\n", output)
+        # bpo-44949: Sometimes, the newline character is not written at the
+        # end, so don't expect it in the output.
+        self.assertIn(b"History length: 1", output)
 
     def test_auto_history_disabled(self):
         output = run_pty(self.auto_history_script.format(False))
-        self.assertIn(b"History length: 0\r\n", output)
+        # bpo-44949: Sometimes, the newline character is not written at the
+        # end, so don't expect it in the output.
+        self.assertIn(b"History length: 0", output)
 
     def test_nonascii(self):
         loc = locale.setlocale(locale.LC_CTYPE, None)
diff --git a/Misc/NEWS.d/next/Tests/2021-08-18-18-30-12.bpo-44949.VE5ENv.rst b/Misc/NEWS.d/next/Tests/2021-08-18-18-30-12.bpo-44949.VE5ENv.rst
new file mode 100644
index 0000000000..7fdf1810b1
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2021-08-18-18-30-12.bpo-44949.VE5ENv.rst
@@ -0,0 +1,2 @@
+Fix auto history tests of test_readline: sometimes, the newline character is
+not written at the end, so don't expect it in the output.