Save teardown exceptions for further teardowns

AUTHORS

@@ -266,9 +266,11 @@ Kevin Hierro Carrasco
 Kevin J. Foley
 Kian Eliasi
 Kian-Meng Ang
+Kirill Zhdanov
 Kim Soo
 Kodi B. Arfer
 Kojo Idrissa
+Konstantin Shkel
 Kostis Anagnostopoulos
 Kristoffer Nordström
 Kyle Altendorf

changelog/12163.feature.rst

@@ -0,0 +1 @@
+Teardown fixtures now can access the information about current teardown exceptions in `node.teardown_exceptions`.

src/_pytest/nodes.py

@@ -206,6 +206,10 @@ def __init__(
         # Deprecated alias. Was never public. Can be removed in a few releases.
         self._store = self.stash
 
+        #: A list of exceptions that happened during teardown. Intended for
+        #: post-teardown inspection, not required internally.
+        self.teardown_exceptions: list[BaseException] = []
+
     @classmethod
     def from_parent(cls, parent: Node, **kw) -> Self:
         """Public constructor for Nodes.

src/_pytest/runner.py

@@ -561,19 +561,20 @@ def teardown_exact(self, nextitem: Item | None) -> None:
             if list(self.stack.keys()) == needed_collectors[: len(self.stack)]:
                 break
             node, (finalizers, _) = self.stack.popitem()
-            these_exceptions = []
             while finalizers:
                 fin = finalizers.pop()
                 try:
                     fin()
                 except TEST_OUTCOME as e:
-                    these_exceptions.append(e)
+                    node.teardown_exceptions.append(e)
 
-            if len(these_exceptions) == 1:
-                exceptions.extend(these_exceptions)
-            elif these_exceptions:
+            if len(node.teardown_exceptions) == 1:
+                exceptions.extend(node.teardown_exceptions)
+            elif node.teardown_exceptions:
                 msg = f"errors while tearing down {node!r}"
-                exceptions.append(BaseExceptionGroup(msg, these_exceptions[::-1]))
+                exceptions.append(
+                    BaseExceptionGroup(msg, node.teardown_exceptions[::-1])
+                )
 
         if len(exceptions) == 1:
             raise exceptions[0]

testing/acceptance_test.py

@@ -1589,6 +1589,33 @@ def test_no_terminal_plugin(pytester: Pytester) -> None:
     assert result.ret == ExitCode.TESTS_FAILED
 
 
+def test_get_exception_on_teardown_failure(pytester: Pytester) -> None:
+    """Smoke test to be sure teardown exceptions handled properly via node property"""
+    pytester.makepyfile(
+        conftest="""
+        import sys
+        import pytest
+        def pytest_exception_interact(node, call, report):
+            sys.stderr.write("teardown_exceptions: `{}`".format(node.teardown_exceptions))
+
+        @pytest.fixture
+        def mylist():
+            yield
+            raise AssertionError(111)
+        """,
+        test_file="""
+        def test_func(mylist):
+            assert True
+        """,
+    )
+    result = pytester.runpytest()
+    assert result.ret == ExitCode.TESTS_FAILED
+    assert "teardown_exceptions: `[AssertionError(111)]`" in result.stderr.str()
+    # Related to the #9909 - first the test passes, then the teardown fails, what
+    # results in a double-reporting.
+    result.assert_outcomes(passed=1, errors=1)
+
+
 def test_stop_iteration_from_collect(pytester: Pytester) -> None:
     pytester.makepyfile(test_it="raise StopIteration('hello')")
     result = pytester.runpytest()