From 7603764b80556c9b2cd01736c2f9a143afadda16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Thu, 23 Nov 2023 21:04:11 +0100
Subject: [PATCH] Fix running the test suite when NO_COLOR is set in calling
 env

Fix the test suite to run successfully when NO_COLOR is set
in the environment in which pytest is called.  This is done via adding
a new fixture that "sanitizes" the environment for the duration of test
run.  This way pytest respects NO_COLOR while the tested library itself
produces colored output as expected.
---
 tests/conftest.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tests/conftest.py b/tests/conftest.py
index 10482b8..86c34a3 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,3 +1,5 @@
+import os
+
 import pytest
 
 import click
@@ -7,3 +9,12 @@
 @pytest.fixture
 def runner():
     return CliRunner()
+
+
+@pytest.fixture(autouse=True)
+def clean_env():
+    old = dict(os.environ)
+    os.environ.pop("FORCE_COLOR", None)
+    os.environ.pop("NO_COLOR", None)
+    yield
+    os.environ = old