'Tests the sad path :('

def test_delete_asset_with_invalid_thumbnail(self):

    test_url = reverse_course_url('assets_handler', self.course.id, kwargs={'asset_key_string': unicode(self.uploaded_url)})
    self.content.thumbnail_location = StaticContent.get_location_from_path('/c4x/edX/toy/asset/invalid')
    contentstore().save(self.content)
    resp = self.client.delete(test_url, HTTP_ACCEPT='application/json')
    self.assertEquals(resp.status_code, 204)
