upstream/ipython Files · IPython/frontend/html/notebook/tests/test_nbmanager.py

Merge pull request from minrk/autosave...

Merge pull request from minrk/autosave Add autosaving to the notebook, while retaining manual checkpoint creation. Autosave will perodically save the notebook, with a default interval of two minutes. This interval is configurable, and the system will automatically back off the frequency if it detects that the save operation takes too long. This can be the case if working remotely over a slow link, so this will automatically conserve bandwidth. The manual save operation remains available and bound to the same keys, but now it causes the creation of a separate checkpoint, which is stored in a hidden directory called `.ipynb_checkpoints`. This provides users a poor-man's version control with a single revert point and the ability to safely experiment with potentially destructive changes to a notebook without concern that the autosave operation may clobber their file on disk. See [IPEP 15](https://github.com/ipython/ipython/wiki/IPEP-15%3A-Autosaving-the-IPython-Notebook) for details of the proposal.

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             test_nbmanager.py
        
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             / IPython / frontend / html / notebook / tests / test_nbmanager.py
          
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      """Tests for the notebook manager."""

      import os

      from unittest import TestCase

      from tempfile import NamedTemporaryFile

      from IPython.utils.tempdir import TemporaryDirectory

      from IPython.utils.traitlets import TraitError

      from IPython.frontend.html.notebook.filenbmanager import FileNotebookManager

      class TestNotebookManager(TestCase):

          def test_nb_dir(self):

              with TemporaryDirectory() as td:

                  km = FileNotebookManager(notebook_dir=td)

                  self.assertEqual(km.notebook_dir, td)

          def test_create_nb_dir(self):

              with TemporaryDirectory() as td:

                  nbdir = os.path.join(td, 'notebooks')

                  km = FileNotebookManager(notebook_dir=nbdir)

                  self.assertEqual(km.notebook_dir, nbdir)

          def test_missing_nb_dir(self):

              with TemporaryDirectory() as td:

                  nbdir = os.path.join(td, 'notebook', 'dir', 'is', 'missing')

                  self.assertRaises(TraitError, FileNotebookManager, notebook_dir=nbdir)

          def test_invalid_nb_dir(self):

              with NamedTemporaryFile() as tf:

                  self.assertRaises(TraitError, FileNotebookManager, notebook_dir=tf.name)

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				"""Tests for the notebook manager."""

				import os
				from unittest import TestCase
				from tempfile import NamedTemporaryFile

				from IPython.utils.tempdir import TemporaryDirectory
				from IPython.utils.traitlets import TraitError

				from IPython.frontend.html.notebook.filenbmanager import FileNotebookManager

				class TestNotebookManager(TestCase):

				def test_nb_dir(self):
				with TemporaryDirectory() as td:
				km = FileNotebookManager(notebook_dir=td)
				self.assertEqual(km.notebook_dir, td)

				def test_create_nb_dir(self):
				with TemporaryDirectory() as td:
				nbdir = os.path.join(td, 'notebooks')
				km = FileNotebookManager(notebook_dir=nbdir)
				self.assertEqual(km.notebook_dir, nbdir)

				def test_missing_nb_dir(self):
				with TemporaryDirectory() as td:
				nbdir = os.path.join(td, 'notebook', 'dir', 'is', 'missing')
				self.assertRaises(TraitError, FileNotebookManager, notebook_dir=nbdir)

				def test_invalid_nb_dir(self):
				with NamedTemporaryFile() as tf:
				self.assertRaises(TraitError, FileNotebookManager, notebook_dir=tf.name)