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import os
import tempfile
import time
import unittest
from unittest.mock import patch
import nbformat
from papermill import engines
from papermill.engines import NotebookExecutionManager
from papermill.execute import execute_notebook
from . import get_notebook_path
class TestMidCellAutosave(unittest.TestCase):
def setUp(self):
self.notebook_name = 'test_autosave.ipynb'
self.notebook_path = get_notebook_path(self.notebook_name)
self.nb = nbformat.read(self.notebook_path, as_version=4)
def test_autosave_not_too_fast(self):
nb_man = NotebookExecutionManager(self.nb, output_path='test.ipynb', autosave_cell_every=0.5)
with patch.object(engines, 'write_ipynb') as write_mock:
write_mock.reset_mock()
assert write_mock.call_count == 0 # check that the mock is sane
nb_man.autosave_cell() # First call to autosave shouldn't trigger save
assert write_mock.call_count == 0
nb_man.autosave_cell() # Call again right away. Still shouldn't save.
assert write_mock.call_count == 0
time.sleep(0.55) # Sleep for long enough that autosave should work
nb_man.autosave_cell()
assert write_mock.call_count == 1
def test_autosave_disable(self):
nb_man = NotebookExecutionManager(self.nb, output_path='test.ipynb', autosave_cell_every=0)
with patch.object(engines, 'write_ipynb') as write_mock:
write_mock.reset_mock()
assert write_mock.call_count == 0 # check that the mock is sane
nb_man.autosave_cell() # First call to autosave shouldn't trigger save
assert write_mock.call_count == 0
nb_man.autosave_cell() # Call again right away. Still shouldn't save.
assert write_mock.call_count == 0
time.sleep(0.55) # Sleep for long enough that autosave should work, if enabled
nb_man.autosave_cell()
assert write_mock.call_count == 0 # but it's disabled.
def test_end2end_autosave_slow_notebook(self):
test_dir = tempfile.mkdtemp()
nb_test_executed_fname = os.path.join(test_dir, f'output_{self.notebook_name}')
# Count how many times it writes the file w/o autosave
with patch.object(engines, 'write_ipynb') as write_mock:
execute_notebook(self.notebook_path, nb_test_executed_fname, autosave_cell_every=0)
default_write_count = write_mock.call_count
# Turn on autosave and see how many more times it gets saved.
with patch.object(engines, 'write_ipynb') as write_mock:
execute_notebook(self.notebook_path, nb_test_executed_fname, autosave_cell_every=1)
# This notebook has a cell which takes 2.5 seconds to run.
# Autosave every 1 sec should add two more saves.
assert write_mock.call_count == default_write_count + 2
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