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Copy pathtests.py
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49 lines (37 loc) · 1.49 KB
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import unittest
from google.appengine.ext import testbed
from google.appengine.ext import ndb
class CursorTests(unittest.TestCase):
def setUp(self):
self.testbed = testbed.Testbed()
self.testbed.activate()
self.testbed.init_datastore_v3_stub()
self.testbed.init_memcache_stub()
def tearDown(self):
self.testbed.deactivate()
def test_paging(self):
class Bar(ndb.Model):
value = ndb.IntegerProperty()
for i in range(18):
Bar(value=i+1).put()
q = Bar.query()
bars1, _, _ = q.order(Bar.key).fetch_page(3)
next_cursor = None
for i in (1,2,3,4,5,6):
bars, next_cursor, more = q.order(Bar.key).fetch_page(3, start_cursor=next_cursor)
# print bars, next_cursor, more
self.assertTrue(more if i != 6 else not more)
self.assertIsNotNone(next_cursor)
bars2 = bars
rev_cursor = next_cursor.reversed()
for i in (1,2,3,4,5,6):
barz, rev_cursor, more2 = q.order(-Bar.key).fetch_page(3, start_cursor=rev_cursor)
# print barz
self.assertEqual(bars1, list(reversed(barz)))
self.assertFalse(more2)
# self.assertEqual(bars, bary)
rev_cursor = rev_cursor.reversed()
for i in (1,2,3,4,5,6):
bars, rev_cursor, more2 = q.order(Bar.key).fetch_page(3, start_cursor=rev_cursor)
# print bars
self.assertEqual(bars2, bars)