fix(pytest): replace rootpath with rootdir (#106)

* Replace rootdir with rootpath

* Add try/except to handle older pytest versions as well

* Extract try/except to a function and use in `pytest_runtest_makereport`

neotest_python/pytest_.py

@@ -77,10 +77,19 @@ class NeotestResultCollector:
     def pytest_configure(self, config: "pytest.Config"):
         self.pytest_config = config
 
+    def _get_abs_path(self, file_path: Union[str, Path]):
+        try:
+            # rootpath is now the preferred way to access root
+            abs_path = str(self.pytest_config.rootpath / file_path)
+        except AttributeError:
+            # fallback to rootdir for older pytest versions
+            abs_path = str(Path(self.pytest_config.rootdir, file_path))
+        return abs_path
+
     def pytest_deselected(self, items: List["pytest.Item"]):
         for report in items:
             file_path, *name_path = report.nodeid.split("::")
-            abs_path = str(Path(self.pytest_config.rootdir, file_path))
+            abs_path = self._get_abs_path(file_path)
             *namespaces, test_name = name_path
             valid_test_name, *params = test_name.split("[")  # ]
             pos_id = "::".join([abs_path, *(namespaces), valid_test_name])
@@ -130,7 +139,7 @@ class NeotestResultCollector:
             return
 
         file_path, *name_path = report.nodeid.split("::")
-        abs_path = str(Path(self.pytest_config.rootdir, file_path))
+        abs_path = self._get_abs_path(file_path)
         *namespaces, test_name = name_path
         valid_test_name, *params = test_name.split("[")  # ]