try normpath again with some debug statements

.github/workflows/checks.yml

@@ -50,5 +50,5 @@ jobs:
       - run: pip install -r requirements.txt
       - env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: pytest -vv -We .
+        run: pytest -vv -rP -We .
 

test_notebooks.py

@@ -28,7 +28,10 @@
 
 
 def _relative_path(absolute_path):
-    return os.path.relpath(absolute_path, _repo_path().absolute())
+    relpath = os.path.relpath(absolute_path, _repo_path().absolute())
+    normpath = os.path.normpath(relpath)
+    print(f"{relpath=}, {normpath=}")
+    return normpath
 
 
 def _repo_path():
@@ -50,7 +53,7 @@ def _repo_path():
     name="notebook_filename",
 )
 def _notebook_filename(request):
-    return os.path.normpath(request.param)
+    return request.param
 
 
 def test_run_notebooks(notebook_filename, tmp_path):
@@ -135,7 +138,7 @@ def _colab_badge_markdown(absolute_path):
 
 
 def test_first_cell_contains_three_badges(notebook_filename):
-    """checks if all notebooks feature nbviewer, mybinder and Colab badges
+    """checks if all notebooks feature Github preview, mybinder and Colab badges
     (in the first cell)"""
     with open(notebook_filename, encoding="utf8") as fp:
         nb = nbformat.read(fp, nbformat.NO_CONVERT)