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"""Test the APIs at the top-level of nbformat"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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import json
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from .base import TestsBase
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from ..reader import get_version
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from IPython.nbformat import read, current_nbformat, writes
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class TestAPI(TestsBase):
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def test_read(self):
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"""Can older notebooks be opened and automatically converted to the current
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nbformat?"""
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# Open a version 2 notebook.
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with self.fopen(u'test2.ipynb', 'r') as f:
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nb = read(f, as_version=current_nbformat)
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# Check that the notebook was upgraded to the latest version automatically.
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(major, minor) = get_version(nb)
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self.assertEqual(major, current_nbformat)
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def test_write_downgrade_2(self):
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"""dowgrade a v3 notebook to v2"""
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# Open a version 3 notebook.
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with self.fopen(u'test3.ipynb', 'r') as f:
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nb = read(f, as_version=3)
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jsons = writes(nb, version=2)
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nb2 = json.loads(jsons)
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(major, minor) = get_version(nb2)
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self.assertEqual(major, 2)
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