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from tests.diff import diff

from unittest import TestCase

class DiffTest(TestCase):

def test__assert_no_diff(self):

for obj in [

1,

'string',

{'complex': {'object': {'with': ['lists']}}},

]:

self.assertEqual(diff(obj, obj), [])

def test__diff_values(self):

self._assert_entire_diff(1, 2)

self._assert_entire_diff('a', 'b')

def test__diff_sequences(self):

self._assert_entire_diff([], [1, 2, 3])

def test__composite_diff(self):

a = {'a': {'b': [1, 2, 3]}}

b = {'a': {'b': [1, 6, 3]}}

[(path, x, y)] = diff(a, b)

self.assertEqual(path, ['a', 'b', 1])

self.assertEqual(x, 2)

self.assertEqual(y, 6)

def _assert_entire_diff(self, a, b):

[(_, x, y)] = diff(a, b)

self.assertEqual(x, a)

self.assertEqual(y, b)