Uploaded Test files

venv/Lib/site-packages/nbformat/tests/test_convert.py

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+"""Tests for nbformat.convert"""
+
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+from .base import TestsBase
+
+from ..converter import convert
+from ..reader import read, get_version
+from ..validator import isvalid, validate
+from .. import current_nbformat
+
+
+class TestConvert(TestsBase):
+
+    def test_downgrade_3_2(self):
+        """Do notebook downgrades work?"""
+
+        # Open a version 3 notebook and attempt to downgrade it to version 2.
+        with self.fopen(u'test3.ipynb', u'r') as f:
+            nb = read(f)
+        nb = convert(nb, 2)
+
+        # Check if downgrade was successful.
+        (major, minor) = get_version(nb)
+        self.assertEqual(major, 2)
+
+
+    def test_upgrade_2_3(self):
+        """Do notebook upgrades work?"""
+
+        # Open a version 2 notebook and attempt to upgrade it to version 3.
+        with self.fopen(u'test2.ipynb', u'r') as f:
+            nb = read(f)
+        nb = convert(nb, 3)
+
+        # Check if upgrade was successful.
+        (major, minor) = get_version(nb)
+        self.assertEqual(major, 3)
+
+
+    def test_upgrade_downgrade_4_3_4(self):
+        """Test that a v4 notebook downgraded to v3 and then upgraded to v4
+        passes validation tests"""
+        with self.fopen(u'test4.ipynb', u'r') as f:
+            nb = read(f)
+        validate(nb)
+        nb = convert(nb, 3)
+        validate(nb)
+        nb = convert(nb, 4)
+        self.assertEqual(isvalid(nb), True)
+
+
+    def test_open_current(self):
+        """Can an old notebook be opened and converted to the current version
+        while remembering the original version of the notebook?"""
+
+        # Open a version 2 notebook and attempt to upgrade it to the current version
+        # while remembering it's version information.
+        with self.fopen(u'test2.ipynb', u'r') as f:
+            nb = read(f)
+        (original_major, original_minor) = get_version(nb)
+        nb = convert(nb, current_nbformat)
+
+        # Check if upgrade was successful.
+        (major, minor) = get_version(nb)
+        self.assertEqual(major, current_nbformat)
+
+        # Check if the original major revision was remembered.
+        self.assertEqual(original_major, 2)