From 239f840076bf9da76906dc029f26a423fef4a698 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Van=C4=9Bk?= <arkamar@atlas.cz>
Date: Fri, 7 Jun 2024 16:45:15 +0200
Subject: [PATCH] Replace deprecated unittest.findTestCases function

The unittest.findTestCases function was deprecated in Python 3.11 and
later removed in Python 3.13. The TestLoader methods should be used
instead [1].

[1] https://docs.python.org/3.13/whatsnew/3.13.html#unittest

Upstream-Issue: https://github.com/pyserial/pyserial/issues/754
Upstream-PR: https://github.com/pyserial/pyserial/issues/757

diff --git a/test/run_all_tests.py b/test/run_all_tests.py
index e0797e7e..f09fe9bb 100644
--- a/test/run_all_tests.py
+++ b/test/run_all_tests.py
@@ -37,7 +37,8 @@
         print("skipping {}".format(modulename))
     else:
         module.PORT = PORT
-        testsuite = unittest.findTestCases(module)
+        loader = unittest.TestLoader()
+        testsuite = loader.loadTestsFromModule(module)
         print("found {} tests in {!r}".format(testsuite.countTestCases(), modulename))
         mainsuite.addTest(testsuite)