python-build/support-pip-23.patch

From b52fdbd70550a9ef58e65b3376cec1e9951d2114 Mon Sep 17 00:00:00 2001
From: Henry Schreiner <henryschreineriii@gmail.com>
Date: Wed, 15 Mar 2023 09:33:53 -0400
Subject: [PATCH] tests: strip formatting from stderr (pip 23)

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
---
 tests/test_main.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/test_main.py b/tests/test_main.py
index e924d8bd..456ff749 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -20,6 +20,8 @@
 cwd = os.getcwd()
 out = os.path.join(cwd, 'dist')
 
+ANSI_STRIP = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
+
 
 @pytest.mark.parametrize(
     ('cli_args', 'build_args', 'hook'),
@@ -368,8 +370,10 @@ def test_output_env_subprocess_error(
     assert stdout[:4] == stdout_body
     assert stdout[-1].startswith(stdout_error)
 
-    assert len(stderr) == 1
-    assert stderr[0].startswith('ERROR: Invalid requirement: ')
+    # Newer versions of pip also color stderr - strip them if present
+    cleaned_stderr = ANSI_STRIP.sub('', '\n'.join(stderr)).strip()
+    assert len(cleaned_stderr.splitlines()) == 1
+    assert cleaned_stderr.startswith('ERROR: Invalid requirement: ')
 
 
 @pytest.mark.parametrize(