Fixed issue shadowing error when missing argument on teardown_method

When the method argument is missing on teardown_method, the traceback is 100% internal to pytest, which with default options get pruned. Then that traceback is empty, leading to a new exception as a traceback shall not be empty. This PR fixes that issue by pushing back the last stack on the traceback, when the stacktrace is empty after pruning. Then the output is still pruned, but gives meaningful information with the item where it failed on the stack. * fixes issue #1604 Signed-off-by: Guyzmo <[email protected]>
pytest-dev · Jun 11, 2016 · ab91a8f · ab91a8f
1 parent 577cce2
commit ab91a8f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/_pytest/main.py b/_pytest/main.py
@@ -392,7 +392,10 @@ def _repr_failure_py(self, excinfo, style=None):
         if self.config.option.fulltrace:
             style="long"
         else:
+            tb = _pytest._code.Traceback([excinfo.traceback[-1]])
             self._prunetraceback(excinfo)
+            if len(excinfo.traceback) == 0:
+                excinfo.traceback = tb
             tbfilter = False  # prunetraceback already does it
             if style == "auto":
                 style = "long"