[3.10] bpo-45229: Remove test_main in many tests (GH-28405) (GH-28455)
Instead of explicitly enumerate test classes for run_unittest()
use the unittest ability to discover tests. This also makes these
tests discoverable and runnable with unittest.
load_tests() can be used for dynamic generating tests and adding
doctests. setUpModule(), tearDownModule() and addModuleCleanup()
can be used for running code before and after all module tests.
(cherry picked from commit 40348acc180580371d25f75f46b27048e35f2435)
diff --git a/Lib/test/test_difflib.py b/Lib/test/test_difflib.py
index 9a24e00..6afd90a 100644
--- a/Lib/test/test_difflib.py
+++ b/Lib/test/test_difflib.py
@@ -1,5 +1,5 @@
import difflib
-from test.support import run_unittest, findfile
+from test.support import findfile
import unittest
import doctest
import sys
@@ -547,12 +547,14 @@ def test_longest_match_with_popular_chars(self):
self.assertFalse(self.longer_match_exists(a, b, match.size))
-def test_main():
+def setUpModule():
difflib.HtmlDiff._default_prefix = 0
- Doctests = doctest.DocTestSuite(difflib)
- run_unittest(
- TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
- TestOutputFormat, TestBytes, TestJunkAPIs, TestFindLongest, Doctests)
+
+
+def load_tests(loader, tests, pattern):
+ tests.addTest(doctest.DocTestSuite(difflib))
+ return tests
+
if __name__ == '__main__':
- test_main()
+ unittest.main()