Merge pull request #11268 from bluetech/conftest-load

config: split `_getconftestmodules` and `_loadconftestmodules`

src/_pytest/config/__init__.py

@@ -581,26 +581,25 @@ class PytestPluginManager(PluginManager):
     def _try_load_conftest(
         self, anchor: Path, importmode: Union[str, ImportMode], rootpath: Path
     ) -> None:
-        self._getconftestmodules(anchor, importmode, rootpath)
+        self._loadconftestmodules(anchor, importmode, rootpath)
         # let's also consider test* subdirs
         if anchor.is_dir():
             for x in anchor.glob("test*"):
                 if x.is_dir():
-                    self._getconftestmodules(x, importmode, rootpath)
+                    self._loadconftestmodules(x, importmode, rootpath)
 
-    def _getconftestmodules(
+    def _loadconftestmodules(
         self, path: Path, importmode: Union[str, ImportMode], rootpath: Path
-    ) -> Sequence[types.ModuleType]:
+    ) -> None:
         if self._noconftest:
-            return []
+            return
 
         directory = self._get_directory(path)
 
         # Optimization: avoid repeated searches in the same directory.
         # Assumes always called with same importmode and rootpath.
-        existing_clist = self._dirpath2confmods.get(directory)
-        if existing_clist is not None:
-            return existing_clist
+        if directory in self._dirpath2confmods:
+            return
 
         # XXX these days we may rather want to use config.rootpath
         # and allow users to opt into looking into the rootdir parent
@@ -613,16 +612,17 @@ class PytestPluginManager(PluginManager):
                     mod = self._importconftest(conftestpath, importmode, rootpath)
                     clist.append(mod)
         self._dirpath2confmods[directory] = clist
-        return clist
+
+    def _getconftestmodules(self, path: Path) -> Sequence[types.ModuleType]:
+        directory = self._get_directory(path)
+        return self._dirpath2confmods.get(directory, ())
 
     def _rget_with_confmod(
         self,
         name: str,
         path: Path,
-        importmode: Union[str, ImportMode],
-        rootpath: Path,
     ) -> Tuple[types.ModuleType, Any]:
-        modules = self._getconftestmodules(path, importmode, rootpath=rootpath)
+        modules = self._getconftestmodules(path)
         for mod in reversed(modules):
             try:
                 return mod, getattr(mod, name)
@@ -1562,13 +1562,9 @@ class Config:
         else:
             return self._getini_unknown_type(name, type, value)
 
-    def _getconftest_pathlist(
-        self, name: str, path: Path, rootpath: Path
-    ) -> Optional[List[Path]]:
+    def _getconftest_pathlist(self, name: str, path: Path) -> Optional[List[Path]]:
         try:
-            mod, relroots = self.pluginmanager._rget_with_confmod(
-                name, path, self.getoption("importmode"), rootpath
-            )
+            mod, relroots = self.pluginmanager._rget_with_confmod(name, path)
         except KeyError:
             return None
         assert mod.__file__ is not None

src/_pytest/main.py

@@ -376,7 +376,7 @@ def _in_venv(path: Path) -> bool:
 
 def pytest_ignore_collect(collection_path: Path, config: Config) -> Optional[bool]:
     ignore_paths = config._getconftest_pathlist(
-        "collect_ignore", path=collection_path.parent, rootpath=config.rootpath
+        "collect_ignore", path=collection_path.parent
     )
     ignore_paths = ignore_paths or []
     excludeopt = config.getoption("ignore")
@@ -387,7 +387,7 @@ def pytest_ignore_collect(collection_path: Path, config: Config) -> Optional[boo
         return True
 
     ignore_globs = config._getconftest_pathlist(
-        "collect_ignore_glob", path=collection_path.parent, rootpath=config.rootpath
+        "collect_ignore_glob", path=collection_path.parent
     )
     ignore_globs = ignore_globs or []
     excludeglobopt = config.getoption("ignore_glob")
@@ -551,11 +551,16 @@ class Session(nodes.FSCollector):
         pm = self.config.pluginmanager
         # Check if we have the common case of running
         # hooks with all conftest.py files.
-        my_conftestmodules = pm._getconftestmodules(
+        #
+        # TODO: pytest relies on this call to load non-initial conftests. This
+        # is incidental. It will be better to load conftests at a more
+        # well-defined place.
+        pm._loadconftestmodules(
             path,
             self.config.getoption("importmode"),
             rootpath=self.config.rootpath,
         )
+        my_conftestmodules = pm._getconftestmodules(path)
         remove_mods = pm._conftest_plugins.difference(my_conftestmodules)
         if remove_mods:
             # One or more conftests are not in use at this fspath.