diff --git a/IPython/html/services/contents/tests/test_contents_api.py b/IPython/html/services/contents/tests/test_contents_api.py
index 34e82cc..6d30513 100644
--- a/IPython/html/services/contents/tests/test_contents_api.py
+++ b/IPython/html/services/contents/tests/test_contents_api.py
@@ -508,6 +508,38 @@ class APITest(NotebookTestBase):
self.assertIn('z.ipynb', nbnames)
self.assertNotIn('a.ipynb', nbnames)
+ def test_checkpoints_follow_file(self):
+
+ # Read initial file state
+ orig = self.api.read('foo/a.ipynb')
+
+ # Create a checkpoint of initial state
+ r = self.api.new_checkpoint('foo/a.ipynb')
+ cp1 = r.json()
+
+ # Modify file and save
+ nbcontent = json.loads(orig.text)['content']
+ nb = from_dict(nbcontent)
+ hcell = new_markdown_cell('Created by test')
+ nb.cells.append(hcell)
+ nbmodel = {'content': nb, 'type': 'notebook'}
+ self.api.save('foo/a.ipynb', body=json.dumps(nbmodel))
+
+ # Rename the file.
+ self.api.rename('foo/a.ipynb', 'foo/z.ipynb')
+
+ # Looking for checkpoints in the old location should yield no results.
+ self.assertEqual(self.api.get_checkpoints('foo/a.ipynb').json(), [])
+
+ # Looking for checkpoints in the new location should work.
+ cps = self.api.get_checkpoints('foo/z.ipynb').json()
+ self.assertEqual(cps, [cp1])
+
+ # Delete the file. The checkpoint should be deleted as well.
+ self.api.delete('foo/z.ipynb')
+ cps = self.api.get_checkpoints('foo/z.ipynb').json()
+ self.assertEqual(cps, [])
+
def test_rename_existing(self):
with assert_http_error(409):
self.api.rename('foo/a.ipynb', 'foo/b.ipynb')
@@ -518,7 +550,7 @@ class APITest(NotebookTestBase):
nb = from_dict(nbcontent)
nb.cells.append(new_markdown_cell(u'Created by test ³'))
- nbmodel= {'content': nb, 'type': 'notebook'}
+ nbmodel = {'content': nb, 'type': 'notebook'}
resp = self.api.save('foo/a.ipynb', body=json.dumps(nbmodel))
nbcontent = self.api.read('foo/a.ipynb').json()['content']