jsonpatch_poc.py

import unittest
import jsonpatch
import json

class ProveJsonPatchIsBusted(unittest.TestCase):

    def setUp(self):
        self.dict1 = {
            'd1':
            {
                'abcd': {'2020': 10.7, '2021': 1.0, '2022': 0.0}
            },
            'time': {'granularity': 'yes'},
            'cvb': {'scalar': 1}
        }

        self.dict2 = {
            'd1':
            {
                'abcd': {'total': 61.0}
            },
            'time': {'total': True},
            'cvb': {'scalar': 1}
        }

    def test_diffing_dicts(self):
        # Generate patch against python dicts
        patch_obj = jsonpatch.make_patch(self.dict1, self.dict2)
        # Apply patch to original python dict
        result = patch_obj.apply(self.dict1)

        # Assert Original and patched are Equal
        # Alarmingly Passes due to python truthiness (True == 1.0)
        self.assertTrue(self.dict2 == result)

        # Assert Patch applied typing as intended
        # Fails because 1.0 isnt a boolean
        print(f"\n\noutput: {result}\n\n")
        self.assertTrue(isinstance(result['time']['total'], bool))


if __name__ == "__main__":
    unittest.main(verbosity=2)