Basic outline for testing overlap

import unittest

from unittest.mock import patch

from unittest.mock import Mock

from unittest.mock import PropertyMock

from osgeo import ogr

import pandas as pd

    def test_compute_fundamental_matrix(self):

        with self.assertRaises(AttributeError):

            self.edge.compute_fundamental_matrix()

    def test_overlap(self):

        wkt1 = "POLYGON ((0 40, 40 40, 40 0, 0 0, 0 40))"

        wkt2 = "POLYGON ((20 60, 60 60, 60 20, 20 20, 20 60))"

        poly1 = ogr.CreateGeometryFromWkt(wkt1)

        poly2 = ogr.CreateGeometryFromWkt(wkt2)

        with patch.object(self.edge.source.geodata, 'footprint' ,new_callable=PropertyMock) as patch_fp:

            patch_fp.return_value = poly1

        with patch.object(self.edge.destination.geodata, 'footprint' ,new_callable=PropertyMock) as patch_fp:

            patch_fp.return_value = poly2

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