fix tutorials path

Author: siliataider

test_tutorials/test_tutorials.py

@@ -7,9 +7,10 @@
 
 # ROOT.gROOT.SetBatch(True)
 
-tutorial_dir = pathlib.Path(os.environ.get("ROOTSYS")) / "tutorials"
+tutorial_dir = pathlib.Path(str(ROOT.gROOT.GetTutorialDir())) or pathlib.Path(ROOT.__file__).parent.parent.parent  / "tutorials"
 tutorials = list(tutorial_dir.rglob("*.py"))
 
+
 @pytest.mark.parametrize("tutorial", tutorials)
 def test_tutorial(tutorial):
     # subprocess.run([sys.executable, str(tutorial)], check=True)