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-rw-r--r--Lib/test/test_support.py23
1 files changed, 18 insertions, 5 deletions
diff --git a/Lib/test/test_support.py b/Lib/test/test_support.py
index e83a4d6426..0dbe02eeb3 100644
--- a/Lib/test/test_support.py
+++ b/Lib/test/test_support.py
@@ -155,8 +155,11 @@ class TestSupport(unittest.TestCase):
finally:
shutil.rmtree(path)
- expected = ['tests may fail, unable to create temp dir: ' + path]
- self.assertEqual(warnings, expected)
+ self.assertEqual(len(warnings), 1, warnings)
+ warn = warnings[0]
+ self.assertTrue(warn.startswith(f'tests may fail, unable to create '
+ f'temporary directory {path!r}: '),
+ warn)
# Tests for change_cwd()
@@ -197,8 +200,12 @@ class TestSupport(unittest.TestCase):
self.assertEqual(os.getcwd(), new_cwd)
warnings = [str(w.message) for w in recorder.warnings]
- expected = ['tests may fail, unable to change CWD to: ' + bad_dir]
- self.assertEqual(warnings, expected)
+ self.assertEqual(len(warnings), 1, warnings)
+ warn = warnings[0]
+ self.assertTrue(warn.startswith(f'tests may fail, unable to change '
+ f'the current working directory '
+ f'to {bad_dir!r}: '),
+ warn)
# Tests for change_cwd()
@@ -209,7 +216,13 @@ class TestSupport(unittest.TestCase):
with support.change_cwd(path=path, quiet=True):
pass
messages = [str(w.message) for w in recorder.warnings]
- self.assertEqual(messages, ['tests may fail, unable to change CWD to: ' + path])
+
+ self.assertEqual(len(messages), 1, messages)
+ msg = messages[0]
+ self.assertTrue(msg.startswith(f'tests may fail, unable to change '
+ f'the current working directory '
+ f'to {path!r}: '),
+ msg)
# Tests for temp_cwd()