Fix non-sensical error message (#9077)

* Fix non-sensical error message

Introduced in 12de92cd2b / #7698

* Add a test

* Put the unit back into unittest

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changelog/9077.bugfix.rst

@@ -0,0 +1 @@
+Fixed confusing error message when ``request.fspath`` / ``request.path`` was accessed from a session-scoped fixture.

src/_pytest/fixtures.py

@@ -536,7 +536,7 @@ class FixtureRequest:
     @property
     def path(self) -> Path:
         if self.scope not in ("function", "class", "module", "package"):
-            raise AttributeError(f"module not available in {self.scope}-scoped context")
+            raise AttributeError(f"path not available in {self.scope}-scoped context")
         # TODO: Remove ignore once _pyfuncitem is properly typed.
         return self._pyfuncitem.path  # type: ignore
 

testing/python/fixtures.py

@@ -1093,6 +1093,21 @@ class TestRequestBasic:
         reprec.assertoutcome(passed=2)
 
 
+class TestRequestSessionScoped:
+    @pytest.fixture(scope="session")
+    def session_request(self, request):
+        return request
+
+    @pytest.mark.parametrize("name", ["path", "fspath", "module"])
+    def test_session_scoped_unavailable_attributes(self, session_request, name):
+        expected = "path" if name == "fspath" else name
+        with pytest.raises(
+            AttributeError,
+            match=f"{expected} not available in session-scoped context",
+        ):
+            getattr(session_request, name)
+
+
 class TestRequestMarking:
     def test_applymarker(self, pytester: Pytester) -> None:
         item1, item2 = pytester.getitems(