Modify documentation to use .stash when storing test results.

doc/en/example/simple.rst

@@ -895,29 +895,30 @@ here is a little example implemented via a local plugin:
 
     import pytest
 
+    phase_report_key = StashKey[Dict[str, CollectReport]]()
+
 
     @pytest.hookimpl(tryfirst=True, hookwrapper=True)
     def pytest_runtest_makereport(item, call):
         # execute all other hooks to obtain the report object
         outcome = yield
         rep = outcome.get_result()
 
-        # set a report attribute for each phase of a call, which can
+        # store test results for each phase of a call, which can
         # be "setup", "call", "teardown"
-
-        setattr(item, "rep_" + rep.when, rep)
+        item.stash.setdefault(phase_report_key, {})[rep.when] = rep
 
 
     @pytest.fixture
     def something(request):
         yield
         # request.node is an "item" because we use the default
         # "function" scope
-        if request.node.rep_setup.failed:
-            print("setting up a test failed!", request.node.nodeid)
-        elif request.node.rep_setup.passed:
-            if request.node.rep_call.failed:
-                print("executing test failed", request.node.nodeid)
+        report = request.node.stash[phase_report_key]
+        if report["setup"].failed:
+            print("setting up a test failed or skipped", request.node.nodeid)
+        elif ("call" not in report) or report["call"].failed:
+            print("executing test failed or skipped", request.node.nodeid)
 
 
 if you then have failing tests:

src/_pytest/tmpdir.py

@@ -12,6 +12,7 @@
 from typing import Union
 
 from _pytest.nodes import Item
+from _pytest.reports import CollectReport
 from _pytest.stash import StashKey
 
 if TYPE_CHECKING:
@@ -318,9 +319,7 @@ def pytest_sessionfinish(session, exitstatus: Union[int, ExitCode]):
 @hookimpl(tryfirst=True, hookwrapper=True)
 def pytest_runtest_makereport(item: Item, call):
     outcome = yield
-    result = outcome.get_result()
+    result: CollectReport = outcome.get_result()
 
-    if tmppath_result_key not in item.stash:
-        item.stash[tmppath_result_key] = {result.when: result.passed}
-    else:
-        item.stash[tmppath_result_key][result.when] = result.passed
+    empty: Dict[str, bool] = {}
+    item.stash.setdefault(tmppath_result_key, empty)[result.when] = result.passed