def test_existing_notebook(self):
# Create a dir with notebooks
td = TemporaryDirectory()
ndir = td.__enter__()
km = NotebookManager(notebook_dir=ndir)
filename = 'new_test.ipynb'
filepath = os.path.join(ndir, filename)
notebook_id = km.new_notebook(ndir=ndir, name=filename)
td2 = TemporaryDirectory()
ndir2 = td2.__enter__()
nbm = NotebookManager(notebook_dir=ndir2)
assert nbm.notebook_dir != km.notebook_dir
assert filepath not in nbm.path_mapping.values()
assert filepath not in nbm.pathed_notebooks.values()
nbm.get_pathed_notebook(filepath)
assert nbm.path_mapping.values()[0] == filepath
assert filepath in nbm.pathed_notebooks.values()
