From b78b2be0a651b1e64b2725dddb44314124a3d755 Mon Sep 17 00:00:00 2001
From: krassowski <5832902+krassowski@users.noreply.github.com>
Date: Sat, 9 May 2026 09:17:37 +0100
Subject: [PATCH 1/5] Ignore new warning from ipykernel about encryption

use first-sentence prefix matching so that we can adjust
the advice that follows in following sentences without
updating downstream tests
---
 tests/test_client.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tests/test_client.py b/tests/test_client.py
index 166beba5..8bc07730 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -308,11 +308,16 @@ def notebook_resources():
 
 
 def filter_messages_on_error_output(err_output):
-    allowed_lines = [
+    allowed_prefixes = [
         # ipykernel might be installed without debugpy extension
-        "[IPKernelApp] WARNING | debugpy_stream undefined, debugging will not be enabled",
+        "[IPKernelApp] WARNING | debugpy_stream undefined",
+        # ipykernel warns when kernel runs over TCP without CurveZMQ encryption
+        "[IPKernelApp] WARNING | Kernel is running over TCP without encryption.",
+    ]
+    filtered_result = [
+        line for line in err_output.splitlines()
+        if not any(line.startswith(prefix) for prefix in allowed_prefixes)
     ]
-    filtered_result = [line for line in err_output.splitlines() if line not in allowed_lines]
 
     return os.linesep.join(filtered_result)
 

From a2219800d2dd63955359270a28b6e15d5ba64981 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Sat, 9 May 2026 08:22:00 +0000
Subject: [PATCH 2/5] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 tests/test_client.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/test_client.py b/tests/test_client.py
index 8bc07730..22131219 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -315,7 +315,8 @@ def filter_messages_on_error_output(err_output):
         "[IPKernelApp] WARNING | Kernel is running over TCP without encryption.",
     ]
     filtered_result = [
-        line for line in err_output.splitlines()
+        line
+        for line in err_output.splitlines()
         if not any(line.startswith(prefix) for prefix in allowed_prefixes)
     ]
 

From 2d783a2e92a5668b3716c19cb3c1f431bcca66ff Mon Sep 17 00:00:00 2001
From: M Bussonnier <bussonniermatthias@gmail.com>
Date: Sun, 10 May 2026 08:44:29 +0200
Subject: [PATCH 3/5] Empty commit to trigger CI


From 3360cf1238440deefaab6d8c61b5ed5cbaf49ac3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Krassowski?=
 <5832902+krassowski@users.noreply.github.com>
Date: Wed, 3 Jun 2026 14:42:29 +0100
Subject: [PATCH 4/5] Fix merge

---
 tests/test_client.py | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/tests/test_client.py b/tests/test_client.py
index 32b3bac6..ce500a70 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -323,18 +323,17 @@ def filter_messages_on_error_output(err_output):
     # Known benign race condition: kernel sends a status message on a socket already
     # closed during parallel shutdown. Filter the entire traceback block.
     in_zmq_traceback = False
-    filtered_result = []
-    for line in lines:
+    final_filtered_result = []
+    for line in filtered_result:
         if "ERROR:tornado.general:Uncaught exception in ZMQStream callback" in line:
             in_zmq_traceback = True
         if in_zmq_traceback:
             if "zmq.error.ZMQError: Socket operation on non-socket" in line:
                 in_zmq_traceback = False
             continue
-        if line not in allowed_lines:
-            filtered_result.append(line)
+        final_filtered_result.append(line)
 
-    return os.linesep.join(filtered_result)
+    return os.linesep.join(final_filtered_result)
 
 
 @pytest.mark.parametrize(

From e61ff3da6caaddc234fa4028bf8fda9b334a9507 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Krassowski?=
 <5832902+krassowski@users.noreply.github.com>
Date: Wed, 3 Jun 2026 14:56:43 +0100
Subject: [PATCH 5/5] Remove unused `lines`

---
 tests/test_client.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tests/test_client.py b/tests/test_client.py
index ce500a70..cfbe1f9d 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -319,7 +319,6 @@ def filter_messages_on_error_output(err_output):
         for line in err_output.splitlines()
         if not any(line.startswith(prefix) for prefix in allowed_prefixes)
     ]
-    lines = err_output.splitlines()
     # Known benign race condition: kernel sends a status message on a socket already
     # closed during parallel shutdown. Filter the entire traceback block.
     in_zmq_traceback = False