'The Last-Modified header is omitted when lastmod isn\'t found in all
sitemaps. Test sitemaps are sorted by lastmod in descending order.'

def test_sitemaps_lastmod_mixed_descending_last_modified_missing(self):

    response = self.client.get('/lastmod-sitemaps/mixed-descending.xml')
    self.assertFalse(response.has_header('Last-Modified'))
