Add a test to show problem/fix for exceptions without a traceback.

pallets · Oct 3, 2021 · 39ec82a · 39ec82a
1 parent b397c96
commit 39ec82a
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/tests/test_debug.py b/tests/test_debug.py
@@ -6,6 +6,7 @@
 
 from werkzeug.debug import console
 from werkzeug.debug import DebuggedApplication
+from werkzeug.debug import get_current_traceback
 from werkzeug.debug import get_machine_id
 from werkzeug.debug.console import HTMLStringO
 from werkzeug.debug.repr import debug_repr
@@ -350,3 +351,12 @@ class MutableException(ValueError):
     except MutableException:
         # previously crashed: `TypeError: unhashable type 'MutableException'`
         Traceback(*sys.exc_info())
+
+
+def test_linked_exception_wo_traceback():
+    try:
+        raise Exception("msg1")
+    except Exception as e:
+        e.__context__ = Exception("msg2")
+        # previously crashed: `IndexError: list index out of range`
+        get_current_traceback()