File: test_no_extra_queries.py

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python-django-imagekit 5.0-3
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from unittest.mock import Mock, PropertyMock, patch

from .models import Photo


def test_dont_access_source():
    """
    Touching the source may trigger an unneeded query.
    See <https://github.com/matthewwithanm/django-imagekit/issues/295>

    """
    pmock = PropertyMock()
    pmock.__get__ = Mock()
    with patch.object(Photo, 'original_image', pmock):
        photo = Photo()  # noqa
        assert not pmock.__get__.called