Issue #28512: Fixed setting the offset attribute of SyntaxError by

PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().

1 files changed, 10 insertions, 3 deletions

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 1f664f6..6df48c0 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -1060,9 +1060,16 @@ def make_bad_fd():
         file.close()
         unlink(TESTFN)
 
-def check_syntax_error(testcase, statement):
-    testcase.assertRaises(SyntaxError, compile, statement,
-                          '<test string>', 'exec')
+def check_syntax_error(testcase, statement, *, lineno=None, offset=None):
+    with testcase.assertRaises(SyntaxError) as cm:
+        compile(statement, '<test string>', 'exec')
+    err = cm.exception
+    testcase.assertIsNotNone(err.lineno)
+    if lineno is not None:
+        testcase.assertEqual(err.lineno, lineno)
+    testcase.assertIsNotNone(err.offset)
+    if offset is not None:
+        testcase.assertEqual(err.offset, offset)
 
 def open_urlresource(url, *args, **kw):
     import urllib.request, urllib.parse