System test failure with Datastore emulator

[chrisrossi]

The test, tests.system.test_query:test_fetch_page fails when run against the Datastore emulator:

_________________________________________________ test_fetch_page _________________________________________________

dispose_of = <function dispose_of.<locals>.delete_entity at 0x7f4cf9932950>

    @pytest.mark.usefixtures("client_context")
    def test_fetch_page(dispose_of):
        page_size = 5
        n_entities = page_size * 2
    
        class SomeKind(ndb.Model):
            foo = ndb.IntegerProperty()
    
        @ndb.tasklet
        def make_entities():
            entities = [SomeKind(foo=i) for i in range(n_entities)]
            keys = yield [entity.put_async() for entity in entities]
            return keys
    
        for key in make_entities().result():
            dispose_of(key._key)
    
        query = SomeKind.query().order(SomeKind.foo)
        eventually(query.fetch, _length_equals(n_entities))
    
        results, cursor, more = query.fetch_page(page_size)
        assert [entity.foo for entity in results] == [0, 1, 2, 3, 4]
        assert more
    
        safe_cursor = cursor.urlsafe()
        next_cursor = ndb.Cursor(urlsafe=safe_cursor)
        results, cursor, more = query.fetch_page(
            page_size, start_cursor=next_cursor
        )
        assert [entity.foo for entity in results] == [5, 6, 7, 8, 9]
>       assert not more
E       assert not True

tests/system/test_query.py:525: AssertionError

[chrisrossi]

This is caused by:

googleapis/google-cloud-datastore#130