Fixed several assertTrue() that were intended to be assertEqual(). (GH-8191)


Fixed also testing the "always" warning filter.
(cherry picked from commit b796e7dcdc24ff7ec53044af041254c83a8ace21)

Co-authored-by: Sergey Fedoseev <fedoseev.sergey@gmail.com>
diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py
index d0db779..d596f7d 100644
--- a/Lib/test/test_tokenize.py
+++ b/Lib/test/test_tokenize.py
@@ -1352,7 +1352,7 @@
             tokenize_module.detect_encoding = orig_detect_encoding
             tokenize_module._tokenize = orig__tokenize
 
-        self.assertTrue(encoding_used, encoding)
+        self.assertEqual(encoding_used, encoding)
 
     def test_oneline_defs(self):
         buf = []