def test07b_closepolygons(self):
        # Both rings in this geometry are not closed.
        poly = OGRGeometry('POLYGON((0 0, 5 0, 5 5, 0 5), (1 1, 2 1, 2 2, 2 1))')
        self.assertEqual(8, poly.point_count)
        print "\nBEGIN - expecting IllegalArgumentException; safe to ignore.\n"
        try:
            c = poly.centroid
        except OGRException:
            # Should raise an OGR exception, rings are not closed
            pass
        else:
            self.fail('Should have raised an OGRException!')
        print "\nEND - expecting IllegalArgumentException; safe to ignore.\n"

        # Closing the rings -- doesn't work on GDAL versions 1.4.1 and below:
        # http://trac.osgeo.org/gdal/ticket/1673
        if GDAL_VERSION <= (1, 4, 1): return
        poly.close_rings()
        self.assertEqual(10, poly.point_count) # Two closing points should've been added
        self.assertEqual(OGRGeometry('POINT(2.5 2.5)'), poly.centroid)
Testing closing Polygon objects.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/gis/gdal/tests/test_geom.py/OGRGeomTest.test07b_closepolygons