[Python-checkins] gh-95280: Fix test_get_ciphers on systems without RSA key exchange (GH-95282)

[tiran]

https://github.com/python/cpython/commit/565403038b75eb64ea483b2757ba30769246d853
commit: 565403038b75eb64ea483b2757ba30769246d853
branch: main
author: Christian Heimes <christian at python.org>
committer: tiran <christian at python.org>
date: 2022-07-27T09:19:49+02:00
summary:

gh-95280: Fix test_get_ciphers on systems without RSA key exchange (GH-95282)

files:
A Misc/NEWS.d/next/Tests/2022-07-26-15-22-19.gh-issue-95280.h8HvbP.rst
M Lib/test/test_ssl.py

diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
index 0d0d14ac00260..5007e08f321b5 100644
--- a/Lib/test/test_ssl.py
+++ b/Lib/test/test_ssl.py
@@ -938,8 +938,20 @@ def test_get_ciphers(self):
         ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
         ctx.set_ciphers('AESGCM')
         names = set(d['name'] for d in ctx.get_ciphers())
-        self.assertIn('AES256-GCM-SHA384', names)
-        self.assertIn('AES128-GCM-SHA256', names)
+        expected = {
+            'AES128-GCM-SHA256',
+            'ECDHE-ECDSA-AES128-GCM-SHA256',
+            'ECDHE-RSA-AES128-GCM-SHA256',
+            'DHE-RSA-AES128-GCM-SHA256',
+            'AES256-GCM-SHA384',
+            'ECDHE-ECDSA-AES256-GCM-SHA384',
+            'ECDHE-RSA-AES256-GCM-SHA384',
+            'DHE-RSA-AES256-GCM-SHA384',
+        }
+        intersection = names.intersection(expected)
+        self.assertGreaterEqual(
+            len(intersection), 2, f"\ngot: {sorted(names)}\nexpected: {sorted(expected)}"
+        )
 
     def test_options(self):
         ctx = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
diff --git a/Misc/NEWS.d/next/Tests/2022-07-26-15-22-19.gh-issue-95280.h8HvbP.rst b/Misc/NEWS.d/next/Tests/2022-07-26-15-22-19.gh-issue-95280.h8HvbP.rst
new file mode 100644
index 0000000000000..523d9d5f2f8bf
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2022-07-26-15-22-19.gh-issue-95280.h8HvbP.rst
@@ -0,0 +1,2 @@
+Fix problem with ``test_ssl`` ``test_get_ciphers`` on systems that require
+perfect forward secrecy (PFS) ciphers.