1 files changed, 24 insertions, 0 deletions
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
index 50168d9..81456d6 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -1803,6 +1803,30 @@ x: *b
     Traceback (most recent call last):
         ...
     SyntaxError: invalid syntax
+
+Invalid bytes literals:
+
+   >>> b"Ā"
+   Traceback (most recent call last):
+      ...
+       b"Ā"
+        ^^^
+   SyntaxError: bytes can only contain ASCII literal characters
+
+   >>> b"абвгде"
+   Traceback (most recent call last):
+      ...
+       b"абвгде"
+        ^^^^^^^^
+   SyntaxError: bytes can only contain ASCII literal characters
+
+   >>> b"abc ъющый"  # first 3 letters are ascii
+   Traceback (most recent call last):
+      ...
+       b"abc ъющый"
+        ^^^^^^^^^^^
+   SyntaxError: bytes can only contain ASCII literal characters
+
 """
 
 import re