tests.py 文件源码

def test_olwidget_has_changed(self):
        """
        Check that changes are accurately noticed by OpenLayersWidget.
        """
        geoadmin = admin.site._registry[City]
        form = geoadmin.get_changelist_form(None)()
        has_changed = form.fields['point']._has_changed

        initial = Point(13.4197458572965953, 52.5194108501149799, srid=4326)
        data_same = "SRID=3857;POINT(1493879.2754093995 6894592.019687599)"
        data_almost_same = "SRID=3857;POINT(1493879.2754093990 6894592.019687590)"
        data_changed = "SRID=3857;POINT(1493884.0527237 6894593.8111804)"

        self.assertTrue(has_changed(None, data_changed))
        self.assertTrue(has_changed(initial, ""))
        self.assertFalse(has_changed(None, ""))
        self.assertFalse(has_changed(initial, data_same))
        self.assertFalse(has_changed(initial, data_almost_same))
        self.assertTrue(has_changed(initial, data_changed))