actually run the tutorials

Author: siliataider

test_tutorials/test_tutorials.py

@@ -5,14 +5,18 @@
 import os
 import pytest
 
-# ROOT.gROOT.SetBatch(True)
+ROOT.gROOT.SetBatch(True)
 
-tutorial_dir = pathlib.Path(str(ROOT.gROOT.GetTutorialDir())) or pathlib.Path(ROOT.__file__).parent.parent.parent  / "tutorials"
+tutorial_dir = pathlib.Path(str(ROOT.gROOT.GetTutorialDir()))
 tutorials = list(tutorial_dir.rglob("*.py"))
 
 
-@pytest.mark.parametrize("tutorial", tutorials)
+def test_tutorials_are_detected():
+    assert len(tutorials) > 0
+
+@pytest.mark.parametrize("tutorial", tutorials, ids=lambda p: p.name)
 def test_tutorial(tutorial):
-    # subprocess.run([sys.executable, str(tutorial)], check=True)
-    print(f"Running tutorial: {tutorial}")
-    assert len(tutorials) > 0
+    env = dict(**os.environ)
+    # force matplotlib to use a non-GUI backend
+    env["MPLBACKEND"] = "Agg"
+    subprocess.run([sys.executable, str(tutorial)], check=True, env=env)